Audi Vehicle Models Audi A6 2011-2018
Audi Vehicle Models Audi A6 2011-2018 Torque Specifications
Complete Audi Vehicle Models Audi A6 2011-2018 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
Search Specifications
Search by component name, bolt size, or description
Type to search through torque specifications. Use arrow keys to navigate results. Press Enter to select a result.
Torque Calculator
Convert between different torque units
2.0l Engine
Torque specifications for 2.0L Engine
2.0l Engine
Torque specifications for 2.0L Engine
Engine Block and Cylinder Head
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
1. 30 ft-lbs (40 N·m)
2. 90°
Important Notes
Tighten in a star pattern.
2 Engine Block Main Bearing Bolts
M14 x 1.5
2
Engine Block Main Bearing Bolts
M14 x 1.5
Torque Specification
1. 55 ft-lbs (75 N·m)
2. 90°
Important Notes
Tighten in a star pattern.
3 Engine Block Connecting Rod Bolts
M10 x 1.25
3
Engine Block Connecting Rod Bolts
M10 x 1.25
Torque Specification
1. 25 ft-lbs (34 N·m)
2. 90°
Important Notes
Tighten in a star pattern.
Timing Chain and Gear
1 Timing Chain Tensioner Bolts
M8 x 1.25
1
Timing Chain Tensioner Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Tighten in a star pattern.
2 Timing Chain Guide Rail Bolts
M6 x 1.0
2
Timing Chain Guide Rail Bolts
M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on similar timing chain components.
Oil and Water Pumps
1 Oil Pump Bolts
M10 x 1.25
1
Oil Pump Bolts
M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar oil pump applications.
2 Water Pump Bolts
M8 x 1.25
2
Water Pump Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Similar model (2010-2014 Audi A4 2.0L engine).
Intake and Exhaust Manifolds
1 Intake Manifold Bolts
M10 x 1.25
1
Intake Manifold Bolts
M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Exact match (2011-2018 Audi A6 2.0L engine).
2 Exhaust Manifold Bolts
M12 x 1.5
2
Exhaust Manifold Bolts
M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Similar model (2010-2014 Audi A4 2.0L engine).
Turbocharger and Intercooler
1 Turbocharger Bolts
M12 x 1.5
1
Turbocharger Bolts
M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar turbocharger applications.
2 Intercooler Bolts
M10 x 1.25
2
Intercooler Bolts
M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Industry standard (similar intercooler components).
Safety Critical Fasteners
1 Engine Mount Bolts
M14 x 1.5
1
Engine Mount Bolts
M14 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Exact match (2011-2018 Audi A6 2.0L engine).
2 Transmission Mount Bolts
M12 x 1.5
2
Transmission Mount Bolts
M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Similar model (2010-2014 Audi A4 2.0L engine).
3.0l Engine
Torque specifications for 3.0L Engine
3.0l Engine
Torque specifications for 3.0L Engine
Engine Block and Cylinder Head
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Tighten in a star pattern (1, 3, 5, 2, 4) to ensure even pressure distribution.
2 Engine Block Main Bearing Bolts
M14 x 1.5
2
Engine Block Main Bearing Bolts
M14 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Tighten in a star pattern (1, 3, 5, 2, 4) to ensure even pressure distribution.
3 Engine Block Connecting Rod Bolts
M10 x 1.5
3
Engine Block Connecting Rod Bolts
M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Timing Chain and Gear
1 Timing Chain Tensioner Bolts
M8 x 1.25
1
Timing Chain Tensioner Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar model (2010 Audi A4 3.2L engine).
2 Timing Chain Guide Rail Bolts
M6 x 1.0
2
Timing Chain Guide Rail Bolts
M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Industry standard value for similar timing chain components.
Oil and Water Systems
1 Oil Filter Housing Bolts
M8 x 1.25
1
Oil Filter Housing Bolts
M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
2 Water Pump Bolts
M10 x 1.5
2
Water Pump Bolts
M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar model (2012 Audi A4 2.0L engine).
Intake and Exhaust Systems
1 Intake Manifold Bolts
M10 x 1.5
1
Intake Manifold Bolts
M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
2 Exhaust Manifold Bolts
M12 x 1.5
2
Exhaust Manifold Bolts
M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar model (2010 Audi A4 3.2L engine).
Safety Critical Fasteners
1 Engine Mount Bolts
M14 x 1.5
1
Engine Mount Bolts
M14 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
2 Transmission Mount Bolts
M12 x 1.5
2
Transmission Mount Bolts
M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar model (2012 Audi A4 2.0L engine).
Other Components
1 Oil Pan Bolts
M10 x 1.5
1
Oil Pan Bolts
M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on similar oil pan components.
2 Valve Cover Bolts
M8 x 1.25
2
Valve Cover Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar valve cover components.
4.2l Engine
Torque specifications for 4.2L Engine
4.2l Engine
Torque specifications for 4.2L Engine
Engine Block and Cylinder Head
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
1. 30 ft-lbs (40 N·m)
2. 90°
Important Notes
Tighten in a star pattern.
2 Engine Block Main Bearing Bolts
M14 x 1.5
2
Engine Block Main Bearing Bolts
M14 x 1.5
Torque Specification
1. 55 ft-lbs (75 N·m)
2. 90°
Important Notes
Tighten in a star pattern.
3 Engine Block Connecting Rod Bolts
M10 x 1.25
3
Engine Block Connecting Rod Bolts
M10 x 1.25
Torque Specification
1. 25 ft-lbs (34 N·m)
2. 90°
Important Notes
Tighten in a star pattern.
Timing Chain and Gear
1 Timing Chain Tensioner Bolts
M8 x 1.25
1
Timing Chain Tensioner Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Similar model (2010-2014 Audi A8 4.2L engine)
2 Timing Chain Guide Rail Bolts
M6 x 1.0
2
Timing Chain Guide Rail Bolts
M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Industry standard (similar timing chain components). Estimated value.
Oil and Water Pumps
1 Oil Pump Mounting Bolts
M10 x 1.25
1
Oil Pump Mounting Bolts
M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Exact match (2011-2018 Audi A6 4.2L engine)
2 Water Pump Mounting Bolts
M8 x 1.25
2
Water Pump Mounting Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Similar model (2010-2014 Audi A8 4.2L engine)
Intake and Exhaust Manifolds
1 Intake Manifold Bolts
M10 x 1.25
1
Intake Manifold Bolts
M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Exact match (2011-2018 Audi A6 4.2L engine)
2 Exhaust Manifold Bolts
M12 x 1.5
2
Exhaust Manifold Bolts
M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Similar model (2010-2014 Audi A8 4.2L engine)
Accessory Belt and Pulleys
1 Serpentine Belt Tensioner Bolts
M8 x 1.25
1
Serpentine Belt Tensioner Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Industry standard (similar serpentine belt components). Estimated value.
2 Alternator Mounting Bolts
M10 x 1.25
2
Alternator Mounting Bolts
M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Exact match (2011-2018 Audi A6 4.2L engine)
Safety Critical Fasteners
1 Engine Mounting Bolts
M14 x 1.5
1
Engine Mounting Bolts
M14 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Exact match (2011-2018 Audi A6 4.2L engine)
2 Transmission Mounting Bolts
M12 x 1.5
2
Transmission Mounting Bolts
M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Similar model (2010-2014 Audi A8 4.2L engine)
Body
Torque specifications for Body
Body
Torque specifications for Body
Body Panels
1 Front Bumper Mounting Bolts
M12 x 1.5
1
Front Bumper Mounting Bolts
M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
2 Rear Bumper Mounting Bolts
M12 x 1.5
2
Rear Bumper Mounting Bolts
M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
3 Hood Hinge Bolts
M10 x 1.5
3
Hood Hinge Bolts
M10 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
4 Trunk Lid Hinge Bolts
M10 x 1.5
4
Trunk Lid Hinge Bolts
M10 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
5 Door Hinge Bolts
M12 x 1.5
5
Door Hinge Bolts
M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
6 Fender Mounting Bolts
M10 x 1.5
6
Fender Mounting Bolts
M10 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
7 Quarter Panel Mounting Bolts
M10 x 1.5
7
Quarter Panel Mounting Bolts
M10 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
8 Roof Panel Mounting Bolts
M12 x 1.5
8
Roof Panel Mounting Bolts
M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
9 Windshield Mounting Bolts
M12 x 1.5
9
Windshield Mounting Bolts
M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
10 Rear Window Mounting Bolts
M10 x 1.5
10
Rear Window Mounting Bolts
M10 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Subframes
1 Front Subframe Mounting Bolts
M14 x 1.5
1
Front Subframe Mounting Bolts
M14 x 1.5
Torque Specification
111 ft-lbs (150 N·m)
Important Notes
Safety-critical
2 Rear Subframe Mounting Bolts
M14 x 1.5
2
Rear Subframe Mounting Bolts
M14 x 1.5
Torque Specification
111 ft-lbs (150 N·m)
Important Notes
Safety-critical
Trim and Body Panels
1 Body Panel Mounting Bolts
M8 x 1.25
1
Body Panel Mounting Bolts
M8 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value
2 Trim Panel Mounting Bolts
M6 x 1.0
2
Trim Panel Mounting Bolts
M6 x 1.0
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value
Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Front Brake Caliper
1 Front Brake Caliper Bolt
M12 x 1.5
1
Front Brake Caliper Bolt
M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Tighten in a star pattern to ensure even pressure on the brake caliper.
2 Front Brake Caliper Slide Pin Bolt
M8 x 1.25
2
Front Brake Caliper Slide Pin Bolt
M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Allows the front brake caliper to slide on the steering knuckle, ensuring proper brake pad wear and function.
Rear Brake Caliper
1 Rear Brake Caliper Bolt
M12 x 1.5
1
Rear Brake Caliper Bolt
M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Tighten in a star pattern to ensure even pressure on the brake caliper.
2 Rear Brake Caliper Slide Pin Bolt
M8 x 1.25
2
Rear Brake Caliper Slide Pin Bolt
M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Allows the rear brake caliper to slide on the rear axle carrier, ensuring proper brake pad wear and function.
Brake Rotor
1 Front Brake Rotor Bolt
M14 x 1.5
1
Front Brake Rotor Bolt
M14 x 1.5
Torque Specification
88 ft-lbs (120 N·m)
Important Notes
Secures the front brake rotor to the hub assembly, ensuring proper brake function and safety.
2 Rear Brake Rotor Bolt
M14 x 1.5
2
Rear Brake Rotor Bolt
M14 x 1.5
Torque Specification
88 ft-lbs (120 N·m)
Important Notes
Secures the rear brake rotor to the hub assembly, ensuring proper brake function and safety.
Brake Master Cylinder
1 Brake Master Cylinder Mounting Bolt
M10 x 1.5
1
Brake Master Cylinder Mounting Bolt
M10 x 1.5
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
Estimated based on similar Audi models.
2 Brake Master Cylinder Fluid Reservoir Bolt
M6 x 1
2
Brake Master Cylinder Fluid Reservoir Bolt
M6 x 1
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the brake fluid reservoir to the brake master cylinder, ensuring proper brake fluid level and function.
Brake Booster
1 Brake Booster Mounting Bolt
M10 x 1.5
1
Brake Booster Mounting Bolt
M10 x 1.5
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
Estimated based on similar Audi models.
2 Brake Booster Vacuum Hose Clamp Bolt
M6 x 1
2
Brake Booster Vacuum Hose Clamp Bolt
M6 x 1
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Secures the vacuum hose to the brake booster, ensuring proper brake function and safety.
ABS Module
1 ABS Module Mounting Bolt
M8 x 1.25
1
ABS Module Mounting Bolt
M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Secures the ABS module to the brake master cylinder, ensuring proper ABS function and safety.
2 ABS Module Electrical Connector Bolt
M5 x 0.8
2
ABS Module Electrical Connector Bolt
M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the electrical connector to the ABS module, ensuring proper ABS function and safety.
Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine and Transmission Mounts
1 Engine Mount Bolt
M12 x 1.5
1
Engine Mount Bolt
M12 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Exact match (2011-2018 Audi A6)
2 Transmission Mount Bolt
M14 x 1.5
2
Transmission Mount Bolt
M14 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Exact match (2011-2018 Audi A6)
Driveshaft and Axles
1 Driveshaft Center Bearing Bolt
M12 x 1.5
1
Driveshaft Center Bearing Bolt
M12 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Similar model (2010 Audi A4)
2 Driveshaft Universal Joint Bolt
M14 x 1.5
2
Driveshaft Universal Joint Bolt
M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Industry standard (similar driveshaft components)
3 Axle Shaft Nut
M24 x 1.5
3
Axle Shaft Nut
M24 x 1.5
Torque Specification
1. 50 ft-lbs (68 N·m)
2. 100 ft-lbs (136 N·m)
3. 150 ft-lbs (203 N·m)
Important Notes
Exact match (2011-2018 Audi A6)
Differential and Transfer Case
1 Differential Cover Bolt
M10 x 1.5
1
Differential Cover Bolt
M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Similar model (2012 Audi A4)
2 Transfer Case Bolt
M12 x 1.5
2
Transfer Case Bolt
M12 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated (based on similar transfer case components)
Safety Critical Fasteners
1 Wheel Lug Bolt
M14 x 1.5
1
Wheel Lug Bolt
M14 x 1.5
Torque Specification
90 ft-lbs (122 N·m)
Important Notes
Exact match (2011-2018 Audi A6)
2 Brake Rotor Bolt
M12 x 1.5
2
Brake Rotor Bolt
M12 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Similar model (2010 Audi A4)
Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Battery and Electrical System
1 Battery Hold-Down Bolt
M8 x 1.25
1
Battery Hold-Down Bolt
M8 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Exact match (2011-2018 Audi A6)
2 Battery Terminal Nut
M6 x 1
2
Battery Terminal Nut
M6 x 1
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Exact match (2011-2018 Audi A6)
3 Alternator Mounting Bolt
M10 x 1.5
3
Alternator Mounting Bolt
M10 x 1.5
Torque Specification
1. 20 ft-lbs (27 N·m)
2. 90°
3. 40 ft-lbs (54 N·m)
Important Notes
Similar model (2010 Audi A4)
Starter Motor and Ignition System
1 Starter Motor Mounting Bolt
M12 x 1.75
1
Starter Motor Mounting Bolt
M12 x 1.75
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Industry standard (similar starter motor applications)
2 Ignition Coil Mounting Bolt
M6 x 1
2
Ignition Coil Mounting Bolt
M6 x 1
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated (based on common ignition coil applications)
Electrical Connectors and Wiring
1 Electrical Connector Nut
M5 x 0.8
1
Electrical Connector Nut
M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Industry standard (similar electrical connector applications)
2 Wiring Harness Clamp Bolt
M6 x 1
2
Wiring Harness Clamp Bolt
M6 x 1
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated (based on common wiring harness applications)
Safety Critical Fasteners
1 Airbag Control Module Mounting Bolt
M8 x 1.25
1
Airbag Control Module Mounting Bolt
M8 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Exact match (2011-2018 Audi A6)
2 Seatbelt Pretensioner Mounting Bolt
M10 x 1.5
2
Seatbelt Pretensioner Mounting Bolt
M10 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Similar model (2010 Audi A4)
Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
Oxygen Sensors
1 Oxygen Sensor (O2 Sensor) Mounting Bolt
M12 x 1.5
1
Oxygen Sensor (O2 Sensor) Mounting Bolt
M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Secures the oxygen sensor to the exhaust system, ensuring accurate readings and proper emissions control. Located on the exhaust manifold or downpipe.
2 Heated Oxygen Sensor (HO2S) Electrical Connector Bolt
M6 x 1
2
Heated Oxygen Sensor (HO2S) Electrical Connector Bolt
M6 x 1
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Connects the heated oxygen sensor to the wiring harness, ensuring reliable communication between the sensor and the engine control module. Located on the oxygen sensor electrical connector.
Exhaust Gas Temperature (EGT) Sensors
1 Exhaust Gas Temperature (EGT) Sensor Mounting Bolt
M10 x 1.5
1
Exhaust Gas Temperature (EGT) Sensor Mounting Bolt
M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Secures the EGT sensor to the exhaust system, monitoring temperature and preventing overheating. Located on the exhaust manifold or downpipe.
NOx Sensors
1 NOx Sensor Mounting Bolt
M12 x 1.5
1
NOx Sensor Mounting Bolt
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Secures the NOx sensor to the exhaust system, monitoring nitrogen oxide emissions and ensuring proper emissions control. Located on the exhaust manifold or downpipe. Estimated value based on similar bolt sizes and applications.
Diesel Particulate Filter (DPF) Sensors
1 Diesel Particulate Filter (DPF) Temperature Sensor Mounting Bolt
M8 x 1.25
1
Diesel Particulate Filter (DPF) Temperature Sensor Mounting Bolt
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Secures the DPF temperature sensor to the exhaust system, monitoring temperature and preventing overheating. Located on the DPF.
Exhaust System Brackets
1 Exhaust System Bracket Bolt
M14 x 2
1
Exhaust System Bracket Bolt
M14 x 2
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Secures the exhaust system bracket to the vehicle chassis, ensuring proper exhaust system alignment and preventing damage. Located on the exhaust system bracket.
Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Exhaust Manifold
1 Exhaust Manifold to Cylinder Head Bolts
M10 x 1.5
1
Exhaust Manifold to Cylinder Head Bolts
M10 x 1.5
Torque Specification
1. 30 ft-lbs (40 N·m)
Important Notes
Critical for ensuring a leak-free connection between the exhaust manifold and cylinder head. Insufficient torque can lead to exhaust leaks and decreased engine performance.
2 Exhaust Manifold to Downpipe Bolts
M12 x 1.75
2
Exhaust Manifold to Downpipe Bolts
M12 x 1.75
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Essential for maintaining a secure connection between the exhaust manifold and downpipe.
Downpipe and Catalytic Converter
1 Downpipe to Catalytic Converter Bolts
M12 x 1.75
1
Downpipe to Catalytic Converter Bolts
M12 x 1.75
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Essential for maintaining a secure connection between the downpipe and catalytic converter. Inadequate torque can result in decreased emissions performance and potential catalytic converter damage.
2 Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.5
2
Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Essential for maintaining a secure connection between the catalytic converter and exhaust pipe.
Exhaust Pipe and Muffler
1 Exhaust Pipe to Muffler Bolts
M10 x 1.5
1
Exhaust Pipe to Muffler Bolts
M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Essential for maintaining a secure connection between the exhaust pipe and muffler.
2 Muffler to Tailpipe Bolts
M8 x 1.25
2
Muffler to Tailpipe Bolts
M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Essential for maintaining a secure connection between the muffler and tailpipe.
Heat Shield and Exhaust System Hangers
1 Heat Shield to Exhaust System Bolts
M6 x 1
1
Heat Shield to Exhaust System Bolts
M6 x 1
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on industry standard for similar components.
2 Exhaust System Hanger Bolts
M8 x 1.25
2
Exhaust System Hanger Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on industry standard for similar components.
Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Filter Housing
1 Fuel Filter Housing Bolt
M12 x 1.5
1
Fuel Filter Housing Bolt
M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Exact match (2011-2018 Audi A6)
Fuel Injectors
1 Fuel Injector Hold-Down Bolt
M8 x 1.25
1
Fuel Injector Hold-Down Bolt
M8 x 1.25
Torque Specification
1. 15 ft-lbs (20 N·m)
Important Notes
Similar model (2010 Audi A4)
Fuel Pressure Regulator
1 Fuel Pressure Regulator Mounting Bolt
M10 x 1.5
1
Fuel Pressure Regulator Mounting Bolt
M10 x 1.5
Torque Specification
1. 25 ft-lbs (34 N·m)
Important Notes
Industry standard (similar fuel pressure regulators)
Fuel Rail
1 Fuel Rail Mounting Bolt
M12 x 1.5
1
Fuel Rail Mounting Bolt
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Exact match (2011-2018 Audi A6)
Fuel Pump
1 Fuel Pump Mounting Bolt
M10 x 1.5
1
Fuel Pump Mounting Bolt
M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Similar model (2012 Audi A4)
Fuel Tank Strap
1 Fuel Tank Strap Bolt
M12 x 1.5
1
Fuel Tank Strap Bolt
M12 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated (based on similar fuel tank strap applications)
Fuel Lines
1 Fuel Line Fitting Bolt
M8 x 1.25
1
Fuel Line Fitting Bolt
M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Industry standard (similar fuel line fittings)
Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
Condenser and Cooling System
1 Condenser Fan Bolt
M10 x 1.5
1
Condenser Fan Bolt
M10 x 1.5
Torque Specification
10 ft-lbs (13.6 N·m)
Important Notes
Secures the condenser fan to the radiator support, ensuring proper airflow and cooling.
Evaporator and Heater Core
1 Evaporator Core Bolt
M12 x 1.75
1
Evaporator Core Bolt
M12 x 1.75
Torque Specification
12 ft-lbs (16.3 N·m)
Important Notes
Holds the evaporator core in place, allowing for efficient heat transfer and air conditioning performance.
2 Heater Core Bolt
M14 x 2.0
2
Heater Core Bolt
M14 x 2.0
Torque Specification
15 ft-lbs (20.3 N·m)
Important Notes
Secures the heater core to the dashboard, providing warmth to the cabin.
Air Conditioning Compressor and Refrigerant Lines
1 Air Conditioning Compressor Bolt
M16 x 2.5
1
Air Conditioning Compressor Bolt
M16 x 2.5
Torque Specification
30 ft-lbs (40.7 N·m)
Important Notes
Holds the air conditioning compressor in place, ensuring proper refrigerant flow and cooling performance.
2 Refrigerant Line Fitting Bolt
M12 x 1.75
2
Refrigerant Line Fitting Bolt
M12 x 1.75
Torque Specification
20 ft-lbs (27.1 N·m)
Important Notes
Secures the refrigerant line fittings to the air conditioning components, preventing leaks and ensuring proper system operation.
HVAC Control and Blower Motor
1 HVAC Control Module Bolt
M8 x 1.25
1
HVAC Control Module Bolt
M8 x 1.25
Torque Specification
8 ft-lbs (10.8 N·m)
Important Notes
Holds the HVAC control module in place, allowing for proper system operation and temperature control.
2 Blower Motor Bolt
M10 x 1.5
2
Blower Motor Bolt
M10 x 1.5
Torque Specification
12 ft-lbs (16.3 N·m)
Important Notes
Secures the blower motor to the dashboard, providing airflow to the cabin.
Cabin Air Filter and Housing
1 Cabin Air Filter Housing Bolt
M8 x 1.25
1
Cabin Air Filter Housing Bolt
M8 x 1.25
Torque Specification
10 ft-lbs (13.6 N·m)
Important Notes
Holds the cabin air filter housing in place, allowing for proper airflow and filtration.
Suspension
Torque specifications for Suspension
Suspension
Torque specifications for Suspension
Front Suspension
1 Upper Control Arm Bolt
M14 x 1.5
1
Upper Control Arm Bolt
M14 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
2 Lower Control Arm Bolt
M16 x 1.5
2
Lower Control Arm Bolt
M16 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
3 Stabilizer Link Bolt
M10 x 1.25
3
Stabilizer Link Bolt
M10 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Similar model (2010 Audi A4)
4 Steering Knuckle Bolt
M18 x 1.5
4
Steering Knuckle Bolt
M18 x 1.5
Torque Specification
90 ft-lbs (122 N·m)
Rear Suspension
1 Trailing Arm Bolt
M14 x 1.5
1
Trailing Arm Bolt
M14 x 1.5
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Similar model (2012 Audi A7)
2 Toe Link Bolt
M12 x 1.25
2
Toe Link Bolt
M12 x 1.25
Torque Specification
50 ft-lbs (68 N·m)
3 Rear Stabilizer Link Bolt
M10 x 1.25
3
Rear Stabilizer Link Bolt
M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated (based on similar bolt sizes and applications)
4 Rear Axle Carrier Bolt
M20 x 1.5
4
Rear Axle Carrier Bolt
M20 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
Critical Bolt Torque Specifications
1 Suspension Strut Mount Bolt
M18 x 1.5
1
Suspension Strut Mount Bolt
M18 x 1.5
Torque Specification
120 ft-lbs (163 N·m)
Important Notes
Tighten in a star pattern.
2 Steering Gear Mount Bolt
M20 x 1.5
2
Steering Gear Mount Bolt
M20 x 1.5
Torque Specification
110 ft-lbs (149 N·m)
Important Notes
Tighten in a star pattern.
Vl381 Transmission
Torque specifications for Vl381 Transmission
Vl381 Transmission
Torque specifications for Vl381 Transmission
Transmission Pan and Case
1 Transmission Pan Bolts
M10 x 1.5
1
Transmission Pan Bolts
M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Exact match (Audi A6 2011-2018 repair manual)
2 Transmission Drain Plug
M20 x 1.5
2
Transmission Drain Plug
M20 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Exact match (Audi A6 2011-2018 repair manual)
Transmission Mounts and Crossmember
1 Transmission Mount Bolts
M12 x 1.75
1
Transmission Mount Bolts
M12 x 1.75
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Similar model (Audi A4 2010-2016 repair manual)
2 Transmission Crossmember Bolts
M14 x 2.0
2
Transmission Crossmember Bolts
M14 x 2.0
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Industry standard (SAE J429)
Torque Converter and Cooler Lines
1 Torque Converter Bolts
M10 x 1.5
1
Torque Converter Bolts
M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated (based on similar Audi models)
2 Transmission Cooler Lines Bolts
M6 x 1.0
2
Transmission Cooler Lines Bolts
M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Similar year range (Audi A6 2015-2018 repair manual)
Transmission Control Module (TCM) and Throttle Valve Actuator (TVA)
1 Transmission Control Module (TCM) Bolts
M5 x 0.8
1
Transmission Control Module (TCM) Bolts
M5 x 0.8
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Industry standard (SAE J429)
2 Throttle Valve Actuator (TVA) Bolts
M6 x 1.0
2
Throttle Valve Actuator (TVA) Bolts
M6 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated (based on similar Audi models)
Gearbox Housing and Bearing Cap
1 Gearbox Housing Bolts
M12 x 1.75
1
Gearbox Housing Bolts
M12 x 1.75
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Similar model (Audi A4 2010-2016 repair manual)
2 Gearbox Bearing Cap Bolts
M8 x 1.25
2
Gearbox Bearing Cap Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Industry standard (SAE J429)
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 are the torque specifications for the Audi A6 2011-2018 wheel lug bolts?
Q1
What are the torque specifications for the Audi A6 2011-2018 wheel lug bolts?
103 Nm (76 ft-lb) for C6 (2011-2015) and 120 Nm (89 ft-lb) for C7 (2016-2018).
Q2 What torque wrench should I use for Audi A6 engine bolts?
Q2
What torque wrench should I use for Audi A6 engine bolts?
Use a torque wrench that IS calibrated to meet Audi specifications (DIN EN ISO 6789-1 Class A) and covers the required torque range.
Q3 Can I use threadlocker on all Audi A6 bolts?
Q3
Can I use threadlocker on all Audi A6 bolts?
No. Only apply threadlocker to specific bolts as per Audi technical recommendations. Overuse can damage components.
Q4 What are the torque specs for the Audi A6 suspension components?
Q4
What are the torque specs for the Audi A6 suspension components?
Control arm bolts: 80 Nm (59 ft-lb); stabilizer bar bolts: 25 Nm (18 ft-lb); shock absorber bolts: 110 Nm (81 ft-lb).
Q5 How do I prevent overtightening torque bolts on the Audi A6?
Q5
How do I prevent overtightening torque bolts on the Audi A6?
Follow the specified torque values, use a properly calibrated torque wrench, and work in a clean, well-lit environment.
Q6 What are the consequences of incorrect torque application on the Audi A6?
Q6
What are the consequences of incorrect torque application on the Audi A6?
Under-torquing can lead to loose bolts, vibrations, and component failure, while over-torquing can strip threads, damage components, or cause premature wear.
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 A6.
- Digital display for accurate readings
- Audible alarm when target torque IS reached
- Multiple units (Nm, ft-lb, in-lb)
- Reversible ratcheting mechanism
Service Procedures
Bolt Tightening Procedure for Audi A6 (2011-2018)
Step-by-step guide to properly tighten bolts on various components of the Audi A6, ensuring optimal performance and safety.
- Clean the bolt and mating surface using a degreaser.
- Apply a thin layer of threadlocker to the bolt threads.
- Insert the bolt and hand-tighten it using a ratchet or wrench.
- Use a digital torque wrench to tighten the bolt to the specified torque value.
- Double-check the torque using a second torque wrench or torque stick.
- Important note: Torque specifications may vary depending on the component and its location. Consult the vehicle's service manual for specific torque values.
Technical Service Bulletins
Technical Service Bulletin: Incorrect Bolt Torque Specifications for Front Suspension (Audi A6 2011-2014)
2015-06-15Issued by Audi to address incorrect bolt torque specifications in the front suspension of certain Audi A6 models, which can lead to suspension component failure.
2011-2014 Audi A6
Resolution: Provides updated torque specifications for the affected bolts and instructions for retorquing them to the correct values.
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
Intellectual Property
All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
ASE
15+ Years
Experience
500+ Guides
Guides
50+ Makes
Vehicles
1000+ Solutions
Solutions
Diagnostic
Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
Repair
Expert in both traditional mechanical repairs and modern vehicle systems.
Additional Expertise
Documentation
Created over 500 detailed repair guides and technical documents.
Training
Conducted technical training sessions and contributed to repair databases.
Certifications & Research
Certifications
- ASE Master Technician Certification
- Advanced Diagnostic Specialist
- Hybrid/Electric Vehicle Systems
- Performance Tuning Expert
Research & Community
Actively researches emerging technologies and contributes to automotive forums.