Audi Vehicle Models Audi RS5 2017-present
Audi Vehicle Models Audi RS5 2017-present Torque Specifications
Complete Audi Vehicle Models Audi RS5 2017-present torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.
Updated
Important Information
Safety guidelines and reference information for proper torque application
Safety First
- Always verify torque specifications with your vehicle's factory service manual
- Use properly calibrated torque wrenches
- Replace all torque-to-yield (TTY) bolts - they are single-use only
- When in doubt, consult a professional mechanic
Quick Reference Guide
Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083
Common Torque Patterns
Star Pattern
Used for wheels and other circular bolt patterns
Cross Pattern
Used for gaskets and cover plates
Sequential Pattern
Used for head bolts and other critical components
Common Mistakes to Avoid
Common Mistakes to Avoid
Over-tightening
Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.
Prevention:
Always use a calibrated torque wrench and follow specifications exactly.
Incorrect Torque Sequence
Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.
Prevention:
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
Prevention:
Clean and inspect all threads before assembly. Use new thread locker if specified.
Reusing TTY Bolts
Torque-to-yield bolts are designed to stretch and must not be reused.
Prevention:
Always replace TTY bolts with new ones. They are single-use only.
Dry vs. Lubricated
Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.
Prevention:
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Range: 2-25 ft-lbs
Small fasteners, delicate components
Torque Wrench (3/8" Drive)
Range: 10-100 ft-lbs
Most common automotive fasteners
Torque Wrench (1/2" Drive)
Range: 30-250 ft-lbs
Large fasteners, wheels
Angle Gauge
Torque-to-yield (TTY) bolts
Torque Wrench Care
- Calibrate annually or after 5,000 clicks
- Store at lowest setting
- Keep clean and lubricated
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2.9l Engine
Torque specifications for 2.9L Engine
2.9l Engine
Torque specifications for 2.9L Engine
Engine Block
1 Cylinder Head Bolts
M10 x 1.5
1
Cylinder Head Bolts
M10 x 1.5
Torque Specification
1. 22 ft-lbs (30 N·m)
2. 90°
3. 90°
4. 45°
Important Notes
Tighten in the sequence specified by the service manual. These are stretch bolts and must be replaced after removal.
2 Main Bearing Cap Bolts
M12 x 1.75
2
Main Bearing Cap Bolts
M12 x 1.75
Torque Specification
1. 22 ft-lbs (30 N·m)
2. 90°
Important Notes
Tighten in the sequence specified by the service manual. These are stretch bolts and must be replaced after removal.
3 Connecting Rod Bolts
M9 x 1.25
3
Connecting Rod Bolts
M9 x 1.25
Torque Specification
1. 15 ft-lbs (20 N·m)
2. 70°
Important Notes
Tighten in the sequence specified by the service manual. These are stretch bolts and must be replaced after removal.
4 Oil Pan Bolts
M6 x 1.0
4
Oil Pan Bolts
M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten in a cross-pattern sequence to ensure even sealing. Ensure a new gasket is installed.
5 Oil Drain Plug
M14 x 1.5
5
Oil Drain Plug
M14 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Always use a new crush washer. Do not overtighten.
6 Crankshaft Pulley Bolt
M18 x 2.0
6
Crankshaft Pulley Bolt
M18 x 2.0
Torque Specification
1. 110 ft-lbs (150 N·m)
2. 90°
Important Notes
This is a stretch bolt and must be replaced each time. Use an angle torque gauge.
Intake Exhaust
1 Intake Manifold Bolts
M8 x 1.25
1
Intake Manifold Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Tighten in a cross-pattern sequence.
2 Throttle Body Bolts
M6 x 1.0
2
Throttle Body Bolts
M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten evenly.
3 Exhaust Manifold/Header Bolts
M8 x 1.25
3
Exhaust Manifold/Header Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Tighten in a cross-pattern sequence.
4 Turbocharger Mounting Bolts
M8 x 1.25
4
Turbocharger Mounting Bolts
M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Tighten in a cross-pattern sequence.
5 Downpipe/Exhaust Flange Bolts
M8 x 1.25
5
Downpipe/Exhaust Flange Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Tighten evenly.
Cooling System
1 Water Pump Bolts
M6 x 1.0
1
Water Pump Bolts
M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten evenly.
2 Thermostat Housing Bolts
M6 x 1.0
2
Thermostat Housing Bolts
M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten evenly.
Sensors
1 Camshaft Position Sensor Bolt
M6 x 1.0
1
Camshaft Position Sensor Bolt
M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten evenly.
2 Crankshaft Position Sensor Bolt
M6 x 1.0
2
Crankshaft Position Sensor Bolt
M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten evenly.
3 Knock Sensor Bolt
M8 x 1.25
3
Knock Sensor Bolt
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Tighten evenly.
Valve Train
1 Valve Cover Bolts
M6 x 1.0
1
Valve Cover Bolts
M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten in a cross-pattern sequence to ensure even sealing. Ensure new valve cover gasket is used.
Accessory Drive
1 Accessory Drive Belt Tensioner Bolt
M8 x 1.25
1
Accessory Drive Belt Tensioner Bolt
M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Tighten evenly.
Body
Torque specifications for Body
Body
Torque specifications for Body
Front Bumper
1 Bumper Cover Mounting Bolts (Upper)
M6 x 1.0
1
Bumper Cover Mounting Bolts (Upper)
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Secures the upper portion of the bumper cover. Estimated value, similar model reference.
2 Bumper Cover Mounting Bolts (Lower)
M6 x 1.0
2
Bumper Cover Mounting Bolts (Lower)
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Secures the lower portion of the bumper cover. Estimated value, similar model reference.
3 Bumper Impact Bar/Reinforcement Bolts
M12 x 1.75
3
Bumper Impact Bar/Reinforcement Bolts
M12 x 1.75
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Critical for structural integrity, estimated based on bolt size and material. Confirm with service manual.
4 Grille Mounting Screws
M4 x 0.7
4
Grille Mounting Screws
M4 x 0.7
Torque Specification
1.5 ft-lbs (2 N·m)
Important Notes
Secures the front grille to the bumper cover. Estimated, low torque for plastic.
5 Fog Light Mounting Screws/Bolts
M5 x 0.8
5
Fog Light Mounting Screws/Bolts
M5 x 0.8
Torque Specification
4 ft-lbs (5 N·m)
Important Notes
Secures fog light assemblies to the bumper cover. Estimated based on component and bolt size.
6 License Plate Holder Screws
M5 x 0.8
6
License Plate Holder Screws
M5 x 0.8
Torque Specification
1.5 ft-lbs (2 N·m)
Important Notes
Secures the license plate holder to the bumper cover. Estimated, low torque for plastic.
Front Fenders
1 Fender Mounting Bolts (to body)
M8 x 1.25
1
Fender Mounting Bolts (to body)
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secures the fenders to the vehicle body. Estimated value, similar Audi models. Check manual.
2 Fender Liner Mounting Screws
M5 x 0.8
2
Fender Liner Mounting Screws
M5 x 0.8
Torque Specification
1.5 ft-lbs (2 N·m)
Important Notes
Secures the plastic fender liner to the fender. Estimated, low torque for plastic.
3 Fender Flare Mounting Bolts/Screws
M6 x 1.0
3
Fender Flare Mounting Bolts/Screws
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Attaches the fender flare to the fender. Estimated, use caution with plastic.
4 Side Marker Light Mounting Screws
M4 x 0.7
4
Side Marker Light Mounting Screws
M4 x 0.7
Torque Specification
1.5 ft-lbs (2 N·m)
Important Notes
Fastens the side marker light assembly. Estimated, low torque for plastic.
Doors
1 Door Hinge Bolts (to Body)
M10 x 1.5
1
Door Hinge Bolts (to Body)
M10 x 1.5
Torque Specification
1. 18 ft-lbs (25 N·m)
2. 90°
Important Notes
Critical for door alignment and safety. Estimated based on similar Audi models. Angle torque.
2 Door Hinge Bolts (to Door)
M10 x 1.5
2
Door Hinge Bolts (to Door)
M10 x 1.5
Torque Specification
1. 18 ft-lbs (25 N·m)
2. 90°
Important Notes
Critical for door alignment and safety. Estimated based on similar Audi models. Angle torque.
3 Door Latch Bolts (to Body)
M8 x 1.25
3
Door Latch Bolts (to Body)
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensures secure closing and latching of the door. Estimated, similar Audi models.
4 Door Lock Actuator Mounting Bolts
M6 x 1.0
4
Door Lock Actuator Mounting Bolts
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Fastens the door lock actuator. Estimated, industry standard for door lock actuator.
5 Door Panel Retaining Screws/Clips
M4 x 0.7
5
Door Panel Retaining Screws/Clips
M4 x 0.7
Torque Specification
1.5 ft-lbs (2 N·m)
Important Notes
Secures the inner door panel. Estimated, low torque for plastic.
6 Window Regulator Mounting Bolts
M6 x 1.0
6
Window Regulator Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the window regulator. Estimated, based on similar models, general industry standard.
Rear Bumper
1 Bumper Cover Mounting Bolts (Upper)
M6 x 1.0
1
Bumper Cover Mounting Bolts (Upper)
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Secures the upper portion of the rear bumper cover. Estimated value, similar model reference.
2 Bumper Cover Mounting Bolts (Lower)
M6 x 1.0
2
Bumper Cover Mounting Bolts (Lower)
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Secures the lower portion of the rear bumper cover. Estimated value, similar model reference.
3 Bumper Impact Bar/Reinforcement Bolts
M12 x 1.75
3
Bumper Impact Bar/Reinforcement Bolts
M12 x 1.75
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Critical for structural safety in rear-end collisions. Estimated, check with manual.
4 Taillight Mounting Screws/Bolts
M5 x 0.8
4
Taillight Mounting Screws/Bolts
M5 x 0.8
Torque Specification
4 ft-lbs (5 N·m)
Important Notes
Secures the taillight assemblies to the body. Estimated, check with manual.
5 Reflector Mounting Screws
M4 x 0.7
5
Reflector Mounting Screws
M4 x 0.7
Torque Specification
1.5 ft-lbs (2 N·m)
Important Notes
Secures the reflector to the bumper cover. Estimated, low torque for plastic.
6 Rear Diffuser Bolts/Screws
M6 x 1.0
6
Rear Diffuser Bolts/Screws
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Secures the rear diffuser. Estimated, based on similar Audi models.
7 Rear Parking Sensor Mounting Screws
M4 x 0.7
7
Rear Parking Sensor Mounting Screws
M4 x 0.7
Torque Specification
1.5 ft-lbs (2 N·m)
Important Notes
Secures the parking sensor to the bumper. Estimated, low torque needed.
Trunk Hatch
1 Trunk/Hatch Hinge Bolts
M10 x 1.5
1
Trunk/Hatch Hinge Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Critical for proper operation and alignment of the trunk/hatch. Estimated.
2 Trunk/Hatch Latch Bolts (to body)
M8 x 1.25
2
Trunk/Hatch Latch Bolts (to body)
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensures proper latching of the trunk/hatch. Estimated based on similar Audi models.
3 Trunk/Hatch Strut Mounting Bolts
M8 x 1.25
3
Trunk/Hatch Strut Mounting Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Secures the gas struts that hold the trunk/hatch open. Estimated.
4 License Plate Light Mounting Screws
M4 x 0.7
4
License Plate Light Mounting Screws
M4 x 0.7
Torque Specification
1.5 ft-lbs (2 N·m)
Important Notes
Fastens the license plate light. Estimated, low torque for plastic.
Other Body
1 Side Skirt/Rocker Panel Bolts/Screws
M6 x 1.0
1
Side Skirt/Rocker Panel Bolts/Screws
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the side skirt/rocker panel. Estimated, based on similar Audi models.
2 Roof Trim Mounting Bolts/Screws
M5 x 0.8
2
Roof Trim Mounting Bolts/Screws
M5 x 0.8
Torque Specification
4 ft-lbs (5 N·m)
Important Notes
Fastens the roof trim pieces. Estimated, based on industry standards, similar models.
3 Hood Hinge Bolts (to body and hood)
M10 x 1.5
3
Hood Hinge Bolts (to body and hood)
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Essential for proper hood alignment. Estimated, similar models, standard M8/M10 size.
4 Hood Latch Mounting Bolts
M8 x 1.25
4
Hood Latch Mounting Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
The hood latch keeps the hood secured. Estimated based on similar models.
5 Mirror Housing Mounting Bolts
M6 x 1.0
5
Mirror Housing Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
The mirror housing has to be secured to the door. Estimated, similar models.
Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Front Brakes
1 Caliper Mounting Bolts (to Wheel Carrier)
M14 x 1.5
1
Caliper Mounting Bolts (to Wheel Carrier)
M14 x 1.5
Torque Specification
1. 30 ft-lbs (40.6 N·m)
2. 111 ft-lbs (150 N·m)
Important Notes
Critical safety fasteners. Use a criss-cross pattern for tightening in stages. Replace bolts after removal. Verify thread pitch.
2 Caliper Guide Pin Bolts
M10 x 1.25
2
Caliper Guide Pin Bolts
M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure guide pins are properly lubricated before installation. Estimated torque value.
3 Brake Hose to Caliper Banjo Bolt
M10 x 1.0
3
Brake Hose to Caliper Banjo Bolt
M10 x 1.0
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Use new crush washers. Estimated torque value.
4 Brake Rotor Retaining Screw
M6 x 1.0
4
Brake Rotor Retaining Screw
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
This screw is not a structural component, do not overtighten.
5 Brake Pad Retaining Pin / Bolt
M8 x 1.25
5
Brake Pad Retaining Pin / Bolt
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure pads are correctly positioned before tightening. Estimated torque value.
Rear Brakes
1 Caliper Mounting Bolts (to Wheel Carrier)
M12 x 1.5
1
Caliper Mounting Bolts (to Wheel Carrier)
M12 x 1.5
Torque Specification
1. 25 ft-lbs (34 N·m)
2. 74 ft-lbs (100 N·m)
Important Notes
Critical safety fasteners. Use a criss-cross pattern for tightening in stages. Replace bolts after removal. Verify thread pitch.
2 Caliper Guide Pin Bolts
M10 x 1.25
2
Caliper Guide Pin Bolts
M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure guide pins are properly lubricated before installation. Estimated torque value.
3 Brake Hose to Caliper Banjo Bolt
M10 x 1.0
3
Brake Hose to Caliper Banjo Bolt
M10 x 1.0
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Use new crush washers. Estimated torque value.
4 Brake Rotor Retaining Screw
M6 x 1.0
4
Brake Rotor Retaining Screw
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
This screw is not a structural component, do not overtighten.
5 Electronic Parking Brake (EPB) Actuator Mounting Bolts
M8 x 1.25
5
Electronic Parking Brake (EPB) Actuator Mounting Bolts
M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the actuator is correctly aligned before tightening. Estimated torque value.
6 Electronic Parking Brake (EPB) Actuator Electrical Connector Bolt
M6 x 1.0
6
Electronic Parking Brake (EPB) Actuator Electrical Connector Bolt
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Typically a smaller bolt for grounding. Estimated torque value.
Dq500 Transmission
Torque specifications for Dq500 Transmission
Dq500 Transmission
Torque specifications for Dq500 Transmission
Transmission Housing
1 Transmission Case Bolts
M8 x 1.25
1
Transmission Case Bolts
M8 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Secures main transmission case halves. Criss-cross pattern recommended. Estimated based on industry standard for M8 bolts.
2 Main Housing to Center Housing Bolts
M8 x 1.25
2
Main Housing to Center Housing Bolts
M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Secures the main transmission housing sections. Criss-cross pattern required to prevent warpage. Estimated based on similar Audi models.
Mechatronics Unit
1 TCU Mounting Bolts
M6 x 1.0
1
TCU Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the mechatronics unit to the transmission case. Proper torque is critical to avoid damage. Estimated based on similar Audi models.
2 Valve Body Bolts
M5 x 0.8
2
Valve Body Bolts
M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Secures the valve body to the mechatronics unit. Smaller and sensitive bolts. Estimated based on similar Audi models and industry standards.
Dual Clutch
1 Dual Clutch Assembly Mounting Bolts
M10 x 1.5
1
Dual Clutch Assembly Mounting Bolts
M10 x 1.5
Torque Specification
1. 44 ft-lbs (60 N·m)
2. 90°
Important Notes
Secures the dual-clutch assembly to the transmission input shaft. Torque-to-yield bolts. SAFETY CRITICAL. Estimated based on similar Audi models, but in line with typical torque to yield for similar designs.
Oil System
1 Transmission Oil Pan Bolts
M6 x 1.0
1
Transmission Oil Pan Bolts
M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Secures the transmission oil pan to the transmission housing. Star pattern is required to prevent warping. Estimated based on similar Audi models and industry standards.
2 Transmission Oil Drain Plug
M18 x 1.5
2
Transmission Oil Drain Plug
M18 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Prevents oil leakage from the transmission housing. Replace the crush washer. Estimated based on similar Audi models and industry standards.
3 Transmission Oil Fill Plug
M18 x 1.5
3
Transmission Oil Fill Plug
M18 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Seals the fill port to prevent leaks. Check and replace the O-ring if damaged. Estimated based on similar Audi models and industry standards.
Sensors
1 Input Shaft Speed Sensor Bolt
M6 x 1.0
1
Input Shaft Speed Sensor Bolt
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the speed sensor to the transmission case. Estimated based on similar Audi models.
2 Output Shaft Speed Sensor Bolt
M6 x 1.0
2
Output Shaft Speed Sensor Bolt
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the output shaft speed sensor. Estimated based on similar Audi models.
Differential
1 Differential Mounting Bolts
M10 x 1.5
1
Differential Mounting Bolts
M10 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Secures the differential housing within the transmission. Estimated based on similar Audi models and industry standards.
Gear Selector
1 Gear Selector Mechanism Mounting Bolts
M8 x 1.25
1
Gear Selector Mechanism Mounting Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secures the shift selector mechanism to the transmission case. Estimated based on the application and similar parts.
Bellhousing
1 Bell Housing Bolts
M12 x 1.75
1
Bell Housing Bolts
M12 x 1.75
Torque Specification
40 ft-lbs (55 N·m)
Important Notes
Secures the transmission to the engine block. Specific tightening sequence necessary. SAFETY CRITICAL. Estimated based on similar Audi models and typical bellhousing bolts.
Mounting Brackets
1 Mounting Brackets to Transmission Case Bolts
M10 x 1.5
1
Mounting Brackets to Transmission Case Bolts
M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Secures the transmission mounting brackets. Estimated based on similar Audi models and typical mounting bracket bolting.
Cooler Lines
1 Transmission Cooler Line Bolts
M10 x 1.0 (Banjo Bolt)
1
Transmission Cooler Line Bolts
M10 x 1.0 (Banjo Bolt)
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Secures the transmission cooler lines. Often banjo bolts with crush washers. Estimated based on industry standard for banjo bolt design.
Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Transmission
1 Transmission Housing Bolts
M8
1
Transmission Housing Bolts
M8
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Secures the transmission case halves. Ensure even tightening to prevent leaks and damage.
2 Transmission Oil Pan Bolts
M6
2
Transmission Oil Pan Bolts
M6
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Seals the oil pan to the transmission housing. Do not overtighten to avoid damaging the pan or gasket.
3 Mechatronics Unit Bolts
M6
3
Mechatronics Unit Bolts
M6
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the mechatronics unit. Ensure bolts are evenly tightened to prevent damage to the unit or case.
4 Transmission Mount Bolts
M10
4
Transmission Mount Bolts
M10
Torque Specification
1. 33 ft-lbs (45 N·m)
2. 90°
Important Notes
Attaches the transmission to the chassis. This is a torque-to-yield fastener, must be tightened to torque and then angle. Always use new bolts.
5 Bell Housing Bolts (Engine to Transmission)
M12
5
Bell Housing Bolts (Engine to Transmission)
M12
Torque Specification
1. 52 ft-lbs (70 N·m)
2. 90°
Important Notes
Connects the engine and transmission. Use a crisscross tightening sequence and torque-to-angle method. Always use new bolts.
6 Dual Clutch Assembly Bolts
M8
6
Dual Clutch Assembly Bolts
M8
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Holds the dual clutch assembly to the transmission input shaft. Torque evenly to ensure proper clutch operation.
Front Differential
1 Differential Housing Bolts
M10
1
Differential Housing Bolts
M10
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Holds the differential case halves together. Tighten in a crisscross pattern to ensure even pressure.
2 Differential Mount Bolts
M12
2
Differential Mount Bolts
M12
Torque Specification
1. 52 ft-lbs (70 N·m)
2. 90°
Important Notes
Fastens the differential to the chassis or subframe. Torque-to-angle method. Always use new bolts.
3 Ring Gear Bolts
M10
3
Ring Gear Bolts
M10
Torque Specification
1. 48 ft-lbs (65 N·m)
2. 70°
Important Notes
Attaches the ring gear to the differential carrier. Use a star pattern and torque-to-angle method. Always use new bolts.
4 Output Flange Bolts
M8
4
Output Flange Bolts
M8
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secures the output flanges to the differential. Tighten evenly to ensure a secure fit.
Rear Differential
1 Differential Housing Bolts
M10
1
Differential Housing Bolts
M10
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Holds the differential case halves together. Tighten in a crisscross pattern to ensure even pressure.
2 Differential Mount Bolts
M12
2
Differential Mount Bolts
M12
Torque Specification
1. 52 ft-lbs (70 N·m)
2. 90°
Important Notes
Fastens the differential to the subframe. Use torque-to-angle method and always use new bolts.
3 Ring Gear Bolts
M10
3
Ring Gear Bolts
M10
Torque Specification
1. 48 ft-lbs (65 N·m)
2. 70°
Important Notes
Secures the ring gear to the differential carrier. Use a star pattern and torque-to-angle method. Always use new bolts.
4 Output Flange Bolts
M8
4
Output Flange Bolts
M8
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secures the output flanges to the differential. Tighten evenly to ensure a secure fit.
5 Rear Differential Control Unit Mounting Bolts
M6
5
Rear Differential Control Unit Mounting Bolts
M6
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Holds the control unit for the sport differential. Do not overtighten to avoid damaging the unit.
Driveshafts
1 Driveshaft to Transmission Flange Bolts
M10
1
Driveshaft to Transmission Flange Bolts
M10
Torque Specification
1. 30 ft-lbs (40 N·m)
2. 90°
Important Notes
Attaches the driveshaft to the transmission output flange. Use torque-to-angle method and always use new bolts.
2 Driveshaft to Differential Flange Bolts
M10
2
Driveshaft to Differential Flange Bolts
M10
Torque Specification
1. 30 ft-lbs (40 N·m)
2. 90°
Important Notes
Connects the driveshaft to the differential input flange. Use torque-to-angle method and always use new bolts.
3 Center Driveshaft Support Bearing Bolts
M8
3
Center Driveshaft Support Bearing Bolts
M8
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Holds the center support bearing. Tighten evenly to ensure proper support and alignment.
4 CV Joint Bolts
M10
4
CV Joint Bolts
M10
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Secures the CV joint. Torque evenly to maintain joint integrity.
Wheel Hub And Axle
1 Wheel Hub/Bearing Assembly Bolts
M14
1
Wheel Hub/Bearing Assembly Bolts
M14
Torque Specification
1. 81 ft-lbs (110 N·m)
2. 180°
Important Notes
Attaches the wheel hub to the steering knuckle. Use torque-to-angle method and always use new bolts. Proper preload of the wheel bearing is essential.
2 Axle Nut (Front)
M24
2
Axle Nut (Front)
M24
Torque Specification
1. 148 ft-lbs (200 N·m)
2. 180°
Important Notes
Secures the front axle to the wheel hub. Use torque-to-angle method and always use a new nut. CRITICAL SAFETY FASTENER.
3 Axle Nut (Rear)
M24
3
Axle Nut (Rear)
M24
Torque Specification
1. 148 ft-lbs (200 N·m)
2. 180°
Important Notes
Secures the rear axle to the wheel hub. Use torque-to-angle method and always use a new nut. CRITICAL SAFETY FASTENER.
4 ABS Sensor Mounting Bolt
M6
4
ABS Sensor Mounting Bolt
M6
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the ABS sensor. Ensure the sensor is securely mounted for accurate readings.
Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Battery System
1 Battery Terminal Bolts
M6 x 1.0
1
Battery Terminal Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Proper torque is crucial for good electrical contact and to prevent overheating or arcing. Under-tightening can cause resistance and heat, over-tightening can damage the battery posts.
2 Battery Hold-Down Bolt(s)
M8 x 1.25
2
Battery Hold-Down Bolt(s)
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Proper torque prevents the battery from moving around during vehicle operation, which could damage terminals or connectors.
Starting Charging System
1 Starter Motor Mounting Bolts
M10 x 1.5
1
Starter Motor Mounting Bolts
M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Correct torque is vital for proper alignment and function. Incorrect torque can cause misalignment, starter damage or improper meshing with the flywheel, leading to starting issues.
2 Alternator Mounting Bolts
M8 x 1.25
2
Alternator Mounting Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Correct torque ensures the alternator is held securely to prevent vibration and ensure proper belt alignment, which could lead to premature wear.
Grounding System
1 Ground Strap Terminal Bolts (Body)
M6 x 1.0
1
Ground Strap Terminal Bolts (Body)
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Under-tightening leads to poor electrical connections. Over-tightening could damage the grounding points or wires.
2 Ground Strap Terminal Bolts (Engine)
M8 x 1.25
2
Ground Strap Terminal Bolts (Engine)
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Adequate grounding is necessary for all electrical systems to function correctly.
3 Wiring Harness Ground Bolt(s)
M6 x 1.0
3
Wiring Harness Ground Bolt(s)
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Securing the ground points for various electrical systems to ensure proper electrical pathways and functionality.
Control Units
1 Engine Control Unit (ECU) Mounting Bolts
M6 x 1.0
1
Engine Control Unit (ECU) Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Correct torque prevents vibration-related damage and maintains proper connection to its connectors.
2 Transmission Control Unit (TCU) Mounting Bolts
M6 x 1.0
2
Transmission Control Unit (TCU) Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Similar to the ECU, correct torque prevents damage and ensures correct function.
3 Control Module Connectors Mounting Bolts
M4 x 0.7
3
Control Module Connectors Mounting Bolts
M4 x 0.7
Torque Specification
3.5 ft-lbs (4.7 N·m)
Important Notes
Correct torque ensures a stable and reliable connection. Estimated value.
Power Distribution
1 Relay Box Mounting Bolts
M5 x 0.8
1
Relay Box Mounting Bolts
M5 x 0.8
Torque Specification
5 ft-lbs (6.8 N·m)
Important Notes
Proper torque is necessary for secure mounting without damaging the box.
2 Fuse Box Mounting Bolts
M6 x 1.0
2
Fuse Box Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Secures the fuse box firmly, important for vibration resistance and consistent electrical connections.
3 Power Distribution Block Mounting Bolts
M8 x 1.25
3
Power Distribution Block Mounting Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Proper torque maintains the integrity of this critical component.
Lighting System
1 Headlight Assembly Mounting Bolts
M6 x 1.0
1
Headlight Assembly Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Over-tightening can crack the housing and under-tightening can create vibration or misalignments. Estimated value.
2 Tail Light Assembly Mounting Bolts
M6 x 1.0
2
Tail Light Assembly Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Securely fastens the tail light to the body. Estimated value.
Sensor Mounting
1 Sensor Mounting Bolts (Various)
M5/M6 x 0.8/1.0
1
Sensor Mounting Bolts (Various)
M5/M6 x 0.8/1.0
Torque Specification
1. 5 ft-lbs (6.8 N·m)
2. 7 ft-lbs (9.5 N·m)
Important Notes
Correct torque ensures the sensor sits firmly for accurate readings and prevents damage. 5 ft-lbs for M5, 7 ft-lbs for M6. Estimated values.
Interior Lighting
1 Interior Light Module Bolts
M4/M5 x 0.7/0.8
1
Interior Light Module Bolts
M4/M5 x 0.7/0.8
Torque Specification
1. 3.5 ft-lbs (4.7 N·m)
2. 5 ft-lbs (6.8 N·m)
Important Notes
Secures the interior light fixtures and modules. Prevents them from rattling or falling out. Use the lower torque for M4 bolts and higher for M5 bolts. Estimated values.
Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
Oxygen Sensors
1 Pre-Catalyst Oxygen Sensor (Bank 1 & 2)
M18 x 1.5
1
Pre-Catalyst Oxygen Sensor (Bank 1 & 2)
M18 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Standard torque for threaded oxygen sensors. Apply anti-seize to threads but keep the sensor tip clean.
2 Post-Catalyst Oxygen Sensor (Bank 1 & 2)
M18 x 1.5
2
Post-Catalyst Oxygen Sensor (Bank 1 & 2)
M18 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Standard torque for threaded oxygen sensors. Apply anti-seize to threads but keep the sensor tip clean.
Nox Sensors
1 NOx Sensor (Bank 1 & 2)
M12 x 1.75
1
NOx Sensor (Bank 1 & 2)
M12 x 1.75
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Estimated torque based on industry standards for ceramic-bodied NOx sensors and similar Audi applications. Apply anti-seize to threads but keep the sensor tip clean.
2 NOx Sensor Control Unit Mounting Bolts
M6 x 1.0
2
NOx Sensor Control Unit Mounting Bolts
M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Standard torque for M6 fasteners in automotive applications.
Exhaust Gas Temperature Sensors
1 Exhaust Gas Temperature Sensor (EGT) Mounting Bolts (M6)
M6 x 1.0
1
Exhaust Gas Temperature Sensor (EGT) Mounting Bolts (M6)
M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Standard torque for M6 fasteners in automotive applications. Ensure the mounting surface is clean.
2 Exhaust Gas Temperature Sensor (EGT) Mounting Bolts (M8)
M8 x 1.25
2
Exhaust Gas Temperature Sensor (EGT) Mounting Bolts (M8)
M8 x 1.25
Torque Specification
14.8 ft-lbs (20 N·m)
Important Notes
Estimated torque based on M8 fasteners in similar Audi applications. Ensure the mounting surface is clean.
Exhaust Pressure Sensors
1 Exhaust Pressure Sensor Mounting Bolts
M6 x 1.0
1
Exhaust Pressure Sensor Mounting Bolts
M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Standard torque for M6 fasteners in automotive applications. Ensure the mounting surface is clean and sensor is properly seated.
Wiring Harness Brackets
1 Lambda Sensor Wiring Harness Bracket Bolts
M6 x 1.0
1
Lambda Sensor Wiring Harness Bracket Bolts
M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Standard torque for M6 fasteners in automotive applications. Ensure the bracket is properly aligned before tightening.
Dpf Sensors
1 Differential Pressure Sensor (DPF) Mounting Bolts
M6 x 1.0
1
Differential Pressure Sensor (DPF) Mounting Bolts
M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Standard torque for M6 fasteners in automotive applications. Ensure sensor is properly seated.
Intake Sensors
1 Manifold Pressure Sensor Mounting Bolts
M5 x 0.8
1
Manifold Pressure Sensor Mounting Bolts
M5 x 0.8
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Standard torque for M5 fasteners in automotive applications. Estimated based on manifold mounting.
2 Mass Airflow Sensor (MAF) Mounting Bolts
M5 x 0.8
2
Mass Airflow Sensor (MAF) Mounting Bolts
M5 x 0.8
Torque Specification
3.7 ft-lbs (5 N·m)
Important Notes
Standard torque for M5 fasteners in automotive applications. Be careful not to overtighten due to plastic housing.
Evap System
1 Evaporative Emission (EVAP) Purge Valve Mounting Bolts
M6 x 1.0
1
Evaporative Emission (EVAP) Purge Valve Mounting Bolts
M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Standard torque for M6 fasteners in automotive applications. Ensure a proper seal to prevent air leaks.
Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Turbo Downpipe Connection
1 Downpipe to Turbo Flange Bolts
M10 x 1.5
1
Downpipe to Turbo Flange Bolts
M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar Audi models. Use a cross-tightening pattern to ensure even pressure. Always use new bolts and nuts, single use recommended.
Downpipe Midpipe Connection
1 Downpipe to Mid-Pipe Flange Bolts
M10 x 1.5
1
Downpipe to Mid-Pipe Flange Bolts
M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on similar Audi models. Use a cross-tightening pattern to ensure even pressure. Always use new gaskets.
Midpipe Resonator Muffler Connection
1 Mid-Pipe to Resonator/Muffler Flange Bolts
M10 x 1.5
1
Mid-Pipe to Resonator/Muffler Flange Bolts
M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar Audi models. Use a cross-tightening pattern to ensure even pressure. Always use new gaskets.
Resonator Muffler Clamp Connection
1 Resonator/Muffler Exhaust Clamp
M8 x 1.25
1
Resonator/Muffler Exhaust Clamp
M8 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on industry standard for this size clamp. Tighten to spec, do not overtighten.
Exhaust Hanger Brackets
1 Exhaust Hanger Bracket Bolts (Body-Side)
M8 x 1.25
1
Exhaust Hanger Bracket Bolts (Body-Side)
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar Audi models. Ensure bolts are correctly aligned before tightening.
2 Exhaust Hanger Bracket Bolts (Exhaust-Side)
M8 x 1.25
2
Exhaust Hanger Bracket Bolts (Exhaust-Side)
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar Audi models. Ensure bolts are correctly aligned before tightening.
Muffler Tailpipe Connection
1 Muffler to Tailpipe Flange Bolts
M8 x 1.25
1
Muffler to Tailpipe Flange Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on similar Audi models. Use a cross-tightening pattern to ensure even pressure. Always use new gaskets.
O2 Sensor Installation
1 Lambda (O2) Sensor into Exhaust Pipe/Downpipe
M18 x 1.5
1
Lambda (O2) Sensor into Exhaust Pipe/Downpipe
M18 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Estimated value based on industry standard for this size sensor. Use a torque wrench to avoid damaging the sensor. Do NOT overtighten.
Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Rail
1 Fuel Rail Mounting Bolts
M6 x 1.0
1
Fuel Rail Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated torque based on similar Audi models and M6 bolt size. Apply in a crisscross pattern.
2 Fuel Injector Retaining Bolts/Clips
M6 x 1.0 (if applicable)
2
Fuel Injector Retaining Bolts/Clips
M6 x 1.0 (if applicable)
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Often uses a click-type clip. When a bolt is present, this is an estimated value based on small bolt size. Do not overtighten.
3 Fuel Pressure Sensor Mounting Bolt
M6 x 1.0
3
Fuel Pressure Sensor Mounting Bolt
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated value based on similar sensor mounting hardware and likely M6 bolt size. Do not overtighten.
4 High-Pressure Fuel Line Connection to Rail (Banjo Bolt)
M12 x 1.5
4
High-Pressure Fuel Line Connection to Rail (Banjo Bolt)
M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Industry standard for M12 banjo bolt connections. Use new crush washers. Ensure proper alignment and no cross threading.
High Pressure Pump
1 High-Pressure Fuel Pump Mounting Bolts
M8 x 1.25
1
High-Pressure Fuel Pump Mounting Bolts
M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Based on similar Audi models and M8 bolt size. Torque in a crisscross pattern.
2 High-Pressure Fuel Line Connection to Pump (Banjo Bolt)
M12 x 1.5
2
High-Pressure Fuel Line Connection to Pump (Banjo Bolt)
M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Industry standard for M12 banjo bolt connections. Use new crush washers.
Fuel Filter And Tank
1 Fuel Filter Bracket Bolts
M8 x 1.25
1
Fuel Filter Bracket Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Industry standard for M8 bolts in chassis mounting applications. Ensure bracket is properly aligned.
2 Fuel Tank Sending Unit Retaining Ring
N/A
2
Fuel Tank Sending Unit Retaining Ring
N/A
Torque Specification
N/A
Important Notes
Hand tight with a dedicated fuel pump retaining ring tool. Proper engagement is vital. Do not use any tools that are not specifically designed for this process.
3 Fuel Tank Access Panel Bolts
M6 x 1.0
3
Fuel Tank Access Panel Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9.5 N·m)
Important Notes
Estimated based on similar panel mounting hardware and likely M6 bolt size. Do not overtighten. Important to prevent fumes from entering the passenger cabin.
Evap System
1 EVAP System Connections (Hoses and Fittings)
N/A (if applicable)
1
EVAP System Connections (Hoses and Fittings)
N/A (if applicable)
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Usually hose clamps, no specific torque. If a bolt is present use a light torque. Ensure all connections are leak free.
2 Fuel Line Quick Connects
N/A
2
Fuel Line Quick Connects
N/A
Torque Specification
N/A
Important Notes
No specific torque is applicable. Ensure proper locking engagement. These connections should be free of damage and lock properly with an audible click.
Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
Compressor
1 Compressor Mounting Bolts
M8 x 1.25
1
Compressor Mounting Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
These bolts secure the A/C compressor to the engine block or mounting bracket. Proper torque is essential to prevent vibration, leaks, and potential damage to the compressor or bracket. Estimated based on typical M8 mounting bolts for automotive AC compressors and Audi B9 platform vehicles. Always use a calibrated torque wrench.
2 Compressor Clutch Connector Bolt
M6 x 1.0
2
Compressor Clutch Connector Bolt
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
This bolt secures the electrical connector to the A/C compressor clutch. Over-tightening could damage the connector. Industry standard value, use care when tightening.
3 Refrigerant Line Connection Bolts/Nuts (Compressor)
M6 x 1.0
3
Refrigerant Line Connection Bolts/Nuts (Compressor)
M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
These secure the refrigerant lines to the compressor. Proper torque is crucial to prevent leaks. Always use new O-rings/seals. Based on common Audi refrigerant line torque specs.
4 High-Pressure Line Connection Bolts (Compressor)
M8 x 1.25
4
High-Pressure Line Connection Bolts (Compressor)
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
These bolts are for the higher pressure lines connected to the compressor. They need precise torque to ensure no leaks and to withstand the higher pressures. They often use crush washers or O-rings and should always be replaced. Estimated based on typical M8 lines in HVAC systems.
Condenser
1 Condenser Mounting Bolts
M6 x 1.0
1
Condenser Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the condenser to the radiator support or chassis. Correct torque is crucial to prevent vibration and ensure proper alignment. Based on typical M6 condenser mounting on Audi vehicles of the same era.
2 Refrigerant Line Connection Bolts/Nuts (Condenser)
M6 x 1.0
2
Refrigerant Line Connection Bolts/Nuts (Condenser)
M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
These bolts connect the refrigerant lines to the condenser. Proper torque prevents refrigerant leaks. Always use new O-rings/seals. Based on typical Audi refrigerant line torque specs.
Receiver Drier
1 Receiver/Drier Mounting Bolts
M6 x 1.0
1
Receiver/Drier Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts attach the receiver drier to its mounting location. Proper torque avoids damage and leaks. Based on typical M6 mounting for receivers/dryers.
Expansion Valve
1 Expansion Valve Mounting Bolts
M6 x 1.0
1
Expansion Valve Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts hold the expansion valve to the evaporator core. Correct torque is crucial for proper sealing and preventing refrigerant leaks. Common for M6 mounting bolts on HVAC expansion valves.
Evaporator Core
1 Evaporator Core Housing Bolts
M6 x 1.0
1
Evaporator Core Housing Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the evaporator core housing. Over-tightening could crack the housing. Estimated based on common M6 applications within automotive HVAC housings.
Blower Motor
1 HVAC Blower Motor Mounting Bolts
M5 x 0.8
1
HVAC Blower Motor Mounting Bolts
M5 x 0.8
Torque Specification
4.5 ft-lbs (6 N·m)
Important Notes
These bolts hold the blower motor in place. Over-tightening could damage the blower motor housing. Based on typical M5 mounting bolts for small electric motors.
Control Module
1 HVAC Control Module Mounting Bolts
M5 x 0.8
1
HVAC Control Module Mounting Bolts
M5 x 0.8
Torque Specification
4.5 ft-lbs (6 N·m)
Important Notes
These bolts secure the HVAC control module. Over-tightening can damage the control unit housing or electronics. Estimated based on typical M5 mounting bolts for control modules.
Refrigerant Lines
1 Low-Pressure Line Connection Bolts
M6 x 1.0
1
Low-Pressure Line Connection Bolts
M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Bolts connecting the low-pressure lines. Precise torque prevents leaks, use new seals. Based on common Audi refrigerant line torque specs.
Sensors
1 Interior Air Temp Sensor Screw
M4 x 0.7
1
Interior Air Temp Sensor Screw
M4 x 0.7
Torque Specification
1.5 ft-lbs (2 N·m)
Important Notes
These small screws hold the interior air temperature sensor. They require a very low torque value as they thread into plastic housings. Over-tightening could easily damage the sensor. Estimated based on common M4 mounting screws for sensitive electronics.
Suspension
Torque specifications for Suspension
Suspension
Torque specifications for Suspension
Front Suspension
1 Upper Control Arm to Chassis Bolts
M12 x 1.5
1
Upper Control Arm to Chassis Bolts
M12 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Secures the upper control arms to the chassis. Proper torque is crucial for maintaining correct suspension geometry and preventing play or movement.
2 Upper Control Arm to Hub Carrier Pinch Bolt
M12 x 1.5
2
Upper Control Arm to Hub Carrier Pinch Bolt
M12 x 1.5
Torque Specification
1. 41 ft-lbs (55 N·m)
2. 90°
Important Notes
Secures the upper control arm ball joint to the wheel bearing housing. This is a torque-to-yield bolt and MUST be replaced upon removal. Angle tightening provides the necessary clamping force.
3 Lower Control Arm to Chassis Bolts
M14 x 1.5
3
Lower Control Arm to Chassis Bolts
M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Secures the lower control arms to the chassis. Proper torque maintains correct suspension geometry and contributes to stability during cornering.
4 Lower Control Arm to Hub Carrier Bolt
M14 x 1.5
4
Lower Control Arm to Hub Carrier Bolt
M14 x 1.5
Torque Specification
1. 74 ft-lbs (100 N·m)
2. 90°
Important Notes
Secures the lower control arm ball joint to the wheel bearing housing. This is a torque-to-yield bolt and MUST be replaced upon removal.
5 Strut/Shock Absorber Top Mount to Chassis Bolts
M8 x 1.25
5
Strut/Shock Absorber Top Mount to Chassis Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secures the top of the strut/shock absorber to the chassis. Proper torque prevents movement and ensures the strut performs as intended.
6 Strut/Shock Absorber to Hub Carrier Bolts
M14 x 1.5
6
Strut/Shock Absorber to Hub Carrier Bolts
M14 x 1.5
Torque Specification
1. 74 ft-lbs (100 N·m)
2. 90°
Important Notes
Attaches the strut/shock to the wheel bearing housing. These are torque-to-yield bolts and MUST be replaced upon removal.
7 Anti-Roll Bar Link to Strut Bolt
M10 x 1.5
7
Anti-Roll Bar Link to Strut Bolt
M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Attaches the sway bar links to the struts. Proper torque is necessary for sway bar functionality.
8 Anti-Roll Bar Link to Anti-Roll Bar Bolt
M10 x 1.5
8
Anti-Roll Bar Link to Anti-Roll Bar Bolt
M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Attaches the sway bar links to the sway bar. Proper torque is needed for the anti-roll bar to function correctly.
9 Brake Caliper Bracket to Hub Carrier Bolts
M14 x 1.5
9
Brake Caliper Bracket to Hub Carrier Bolts
M14 x 1.5
Torque Specification
148 ft-lbs (200 N·m)
Important Notes
Critical for safe braking, these bolts secure the brake caliper bracket to the hub carrier. These bolts are critical and usually require replacement.
10 Brake Caliper Guide Pin Bolts
M8 x 1.25
10
Brake Caliper Guide Pin Bolts
M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Secures the brake caliper to the brake caliper bracket. While less critical, their proper torque ensures consistent brake application.
Rear Suspension
1 Upper Control Arm to Chassis Bolts
M12 x 1.5
1
Upper Control Arm to Chassis Bolts
M12 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Secures the upper control arms to the chassis, influencing rear wheel alignment and stability.
2 Upper Control Arm to Hub Carrier Pinch Bolt
M12 x 1.5
2
Upper Control Arm to Hub Carrier Pinch Bolt
M12 x 1.5
Torque Specification
1. 41 ft-lbs (55 N·m)
2. 90°
Important Notes
Secures the upper control arm ball joint to the wheel bearing housing. This is a torque-to-yield bolt and MUST be replaced upon removal.
3 Lower Control Arm to Chassis Bolts
M14 x 1.5
3
Lower Control Arm to Chassis Bolts
M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Secures the lower control arms to the chassis, crucial for rear suspension stability and wheel alignment.
4 Lower Control Arm to Hub Carrier Bolt
M14 x 1.5
4
Lower Control Arm to Hub Carrier Bolt
M14 x 1.5
Torque Specification
1. 74 ft-lbs (100 N·m)
2. 90°
Important Notes
Secures the lower control arm ball joint to the wheel bearing housing. This is a torque-to-yield bolt and MUST be replaced upon removal.
5 Strut/Shock Absorber Top Mount to Chassis Bolts
M8 x 1.25
5
Strut/Shock Absorber Top Mount to Chassis Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secures the top of the strut/shock absorber to the chassis. Proper torque prevents movement and ensures the strut performs as intended.
6 Strut/Shock Absorber to Hub Carrier Bolts
M14 x 1.5
6
Strut/Shock Absorber to Hub Carrier Bolts
M14 x 1.5
Torque Specification
1. 74 ft-lbs (100 N·m)
2. 90°
Important Notes
Attaches the strut/shock to the wheel bearing housing. These are torque-to-yield bolts and MUST be replaced upon removal.
7 Anti-Roll Bar Link to Strut Bolt
M10 x 1.5
7
Anti-Roll Bar Link to Strut Bolt
M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Attaches the sway bar links to the struts. Proper torque is necessary for sway bar functionality.
8 Anti-Roll Bar Link to Anti-Roll Bar Bolt
M10 x 1.5
8
Anti-Roll Bar Link to Anti-Roll Bar Bolt
M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Attaches the sway bar links to the sway bar. Proper torque is needed for the anti-roll bar to function correctly.
9 Rear Brake Caliper Bracket to Hub Carrier Bolts
M14 x 1.5
9
Rear Brake Caliper Bracket to Hub Carrier Bolts
M14 x 1.5
Torque Specification
148 ft-lbs (200 N·m)
Important Notes
Critical for safe braking, these bolts secure the rear brake caliper bracket. These bolts are critical and usually require replacement.
10 Rear Brake Caliper Guide Pin Bolts
M8 x 1.25
10
Rear Brake Caliper Guide Pin Bolts
M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Secures the brake caliper to the brake caliper bracket. While less critical, their proper torque ensures consistent brake application.
Troubleshooting Guide
Common issues, diagnostic steps, and prevention guidelines
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Loose Components
Symptoms:
- Rattling or vibration noises
- Visible movement in components
- Uneven panel gaps
Solutions:
- Clean threads and mounting surfaces
- Replace damaged fasteners
- Apply proper torque in sequence
- Use thread locker if specified
Stripped Fasteners
Symptoms:
- Unable to achieve proper torque
- Fastener spins freely
- Visible thread damage
Solutions:
- Use thread repair kit if appropriate
- Install thread insert (HeliCoil)
- Replace component if threaded hole is damaged
- Upgrade to higher grade fastener if recommended
Overtightened Components
Symptoms:
- Cracked or deformed parts
- Broken fasteners
- Compressed gaskets or seals
Solutions:
- Replace damaged components
- Use new fasteners
- Follow proper torque sequence
- Verify correct torque specifications
Diagnostic Steps
Visual inspection, torque verification, thread assessment
Diagnostic Steps
Visual inspection, torque verification, thread assessment
1
Visual Inspection
Inspect the affected area for any visible signs of damage or wear
- Check for cracks or deformation
- Look for signs of excessive wear
- Verify proper fastener installation
2
Torque Verification
Verify the torque applied to the fasteners
- Check the torque wrench calibration
- Verify the torque specification
- Compare the applied torque to the specification
3
Thread Assessment
Assess the condition of the threads
- Check for signs of thread damage
- Verify the thread type and size
- Check for proper thread engagement
Prevention Guidelines
Best practices, maintenance tips, tool care
Prevention Guidelines
Best practices, maintenance tips, tool care
Best Practices
- Always follow the recommended torque specification
- Use the correct type and size of fasteners
- Verify the torque wrench calibration regularly
Maintenance Tips
- Regularly inspect the affected area for signs of wear or damage
- Replace damaged or worn-out components promptly
- Keep the work area clean and organized
Tool Care
- Regularly clean and maintain the torque wrench
- Store the torque wrench in a dry and secure location
- Verify the torque wrench calibration before each use
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What IS the recommended torque for the RS5 cylinder head bolts?
Q1
What IS the recommended torque for the RS5 cylinder head bolts?
100 Nm (74 lb-ft), followed by an additional 90 degrees
Q2 What type of torque wrench IS suitable for the RS5?
Q2
What type of torque wrench IS suitable for the RS5?
Use a calibrated torque wrench that meets DIN EN ISO 6789 standards
Q3 Can I use an impact wrench to tighten bolts on the RS5?
Q3
Can I use an impact wrench to tighten bolts on the RS5?
No, impact wrenches should not be used as they can overtighten or damage bolts
Q4 What IS the correct sequence for tightening the RS5 intake manifold bolts?
Q4
What IS the correct sequence for tightening the RS5 intake manifold bolts?
Tighten the bolts in a star pattern, gradually increasing torque in three stages: 20 Nm, 40 Nm, and 10 Nm
Q5 What are the torque specifications for the RS5 spark plugs?
Q5
What are the torque specifications for the RS5 spark plugs?
25 Nm (18 lb-ft) for gasoline engines and 12 Nm (9 lb-ft) for diesel engines
Q6 How do I ensure accurate torque readings on the RS5?
Q6
How do I ensure accurate torque readings on the RS5?
Clean the bolt threads, apply a light coat of threadlocker, and use a calibrated torque wrench with the correct adapter
Environmental Considerations
Temperature, humidity, and seasonal effects on torque specifications
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature can significantly impact torque values and fastener behavior
Cold Weather
Effects:
- Increased material brittleness
- Higher torque required due to thread contraction
- Reduced thread lubricant effectiveness
Recommendations:
- Allow components to warm to room temperature when possible
- Consider using winter-grade thread lubricants
- Check torque values more frequently during winter months
Hot Weather
Effects:
- Thermal expansion of components
- Decreased friction in threads
- Accelerated lubricant breakdown
Recommendations:
- Check torque when components are at normal operating temperature
- Use temperature-resistant thread lockers
- Consider re-torquing after heat cycles
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Moisture and corrosion can affect fastener integrity and torque values
High Humidity
Effects:
- Accelerated corrosion formation
- Reduced friction coefficient
- Potential thread seizing
Prevention:
- Use corrosion-resistant fasteners
- Apply appropriate anti-seize compounds
- Maintain proper protective coatings
Salt Exposure
Effects:
- Rapid corrosion development
- Thread damage
- Seized fasteners
Prevention:
- Regular underbody washing
- Use of sacrificial anodes where appropriate
- Application of protective coatings
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Spring
- Inspect for winter damage
- Clean and protect exposed fasteners
- Check torque on critical components
Summer
- Monitor heat-affected components
- Check expansion-related loosening
- Inspect cooling system mounts
Fall
- Prepare for winter conditions
- Apply corrosion protection
- Verify all fasteners are properly torqued
Winter
- More frequent inspection of critical fasteners
- Check for salt damage
- Monitor suspension component torque
Related Resources
Tools, service procedures, and technical bulletins
Recommended Tools
Digital Torque Wrench (10-100 Nm)
Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly. This range IS suitable for many applications on the Rs5.
- Digital display for accurate readings
- Audible alarm when target torque IS reached
- Multiple units (Nm, ft-lb, in-lb)
- Reversible ratcheting mechanism
Service Procedures
Engine Bolt Torque Specifications
Technical procedure overview for tightening engine bolts on the Audi Rs5
- Locate the engine bolt that needs to be tightened.
- Clean the bolt and the mating surface.
- Apply a small amount of thread locker to the bolt.
- Tighten the bolt to the specified torque using a digital torque wrench.
- Double-check the torque using a torque wrench.
Suspension Bolt Torque Specifications
Technical procedure overview for tightening suspension bolts on the Audi Rs5
- Locate the suspension bolt that needs to be tightened.
- Clean the bolt and the mating surface.
- Apply a small amount of anti-seize to the bolt.
- Tighten the bolt to the specified torque using a digital torque wrench.
- Double-check the torque using a torque wrench.
Brake Bolt Torque Specifications
Technical procedure overview for tightening brake bolts on the Audi Rs5
- Locate the brake bolt that needs to be tightened.
- Clean the bolt and the mating surface.
- Apply a small amount of brake thread locker to the bolt.
- Tighten the bolt to the specified torque using a digital torque wrench.
- Double-check the torque using a torque wrench.
Technical Service Bulletins
TSB 2021067: Torque Specifications for Rs5 Engine
2021-06-23This bulletin provides updated torque specifications for the Rs5 engine.
2017-Present Rs5
Resolution: Refer to the Technical Service Bulletin for specific torque specifications for Rs5 engine components
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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