Audi Vehicle Models Audi A5 2016-present Torque Specifications
Audi Vehicle Models Audi A5 2016-present

Audi Vehicle Models Audi A5 2016-present Torque Specifications

Complete Audi Vehicle Models Audi A5 2016-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

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

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

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

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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Torque Calculator

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2.0l Engine

Torque specifications for 2.0L Engine

2.0l Engine Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 18 ft-lbs (25 N·m) 2. 90° 3. 90°
Important Notes
Cylinder head bolts are tightened in a specific sequence and require angle torque after the initial torque value. Refer to the manufacturer's manual for the correct sequence. Use new bolts for each installation.
2

Camshaft Bearing Cap Bolts

M8 x 1.25
Torque Specification
1. 7 ft-lbs (10 N·m) 2. 90°
Important Notes
Camshaft bearing cap bolts require an initial torque and then an additional angle. Refer to the manufacturer's manual for the specific sequence. These bolts should be tightened in stages.
3

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Valve cover bolts require low torque to prevent gasket damage. Tighten in a criss-cross pattern to evenly distribute pressure.
4

Spark Plugs

M14 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Correct torque is essential to ensure good contact with the cylinder head for proper heat transfer. Do not over tighten.
5

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
These bolts must be torqued to ensure proper valve operation. Do not over tighten.
6

Ignition Coil Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Low torque is required to avoid damaging the coils. Do not over tighten.
7

Variable Valve Timing (VVT) Solenoid Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the VVT solenoids to the cylinder head. Ensuring these are correctly torqued will ensure proper valve operation.

2.0l Engine Block

1

Main Bearing Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Main bearing bolts must be torqued in a specified sequence to ensure proper crankshaft alignment. Ensure correct torque is applied.
2

Connecting Rod Nuts

M9 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Connecting rod nuts must be torqued properly to prevent bearing failure. Ensure correct torque is applied.
3

Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Oil pan bolts are low torque to prevent gasket damage. Tighten in a criss-cross pattern to evenly distribute pressure and prevent leaks.
4

Water Pump Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Water pump bolts must be correctly torqued to prevent coolant leaks. Tighten in a criss-cross pattern to evenly distribute pressure.
5

Oil Filter Housing Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Oil filter housing bolts must be correctly torqued to prevent oil leaks. Ensure correct torque is applied.
6

Crank Position Sensor Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
This bolt secures the crankshaft position sensor to the engine block. Proper torque will ensure correct sensor readings.
7

Knock Sensor Bolt

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
The knock sensor is critical to sensing engine knock or detonation. This sensor must be properly torqued to the engine block to function correctly.

2.0l Engine Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Proper torque is critical for maintaining the correct timing between the crankshaft and camshafts. Do not over tighten.
2

Camshaft Sprocket Bolt

M10 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
These bolts must be torqued properly to prevent timing slippage or damage to the timing system. Ensure correct torque is applied.

2.0l Engine External Components

1

Crankshaft Pulley/Harmonic Balancer Bolt

M16 x 1.5
Torque Specification
96 ft-lbs (130 N·m)
Important Notes
This bolt is critical for proper drive belt function and helps to absorb the engine's torsional vibrations. High torque is necessary. Ensure correct torque is applied.
2

Water Pump Pulley Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Water pump pulley bolts must be properly torqued to prevent the pulley from loosening.
3

Drive Belt Idler Pulley Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secures the idler pulley to its mounting point on the engine. Ensures proper belt tensioning.
4

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Seals the oil pan drain hole. Proper torque is critical for preventing oil leaks.

2.0l Engine Intake System

1

Throttle Body Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Low torque is sufficient here to avoid damaging the throttle body or its gasket. Ensure correct torque is applied.
2

Intake Manifold Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Proper torque is important to maintain an air-tight seal and proper engine performance. Tighten in a criss-cross pattern to evenly distribute pressure.
3

EGR Valve Bolts

M6 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Torque is important to prevent leaks in the EGR system. Ensure correct torque is applied.
4

Fuel Rail Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Proper torque maintains fuel system pressure and prevents leaks. Ensure correct torque is applied.
5

Fuel Injector Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Proper torque prevents fuel leaks. Ensure correct torque is applied.
6

Fuel Filter Bolt/Nut

M6 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Secures the fuel filter to its mounting bracket. Prevents leaks in the fuel system.

2.0l Engine Exhaust System

1

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
These bolts are exposed to high temperatures, and proper torque is vital for preventing exhaust leaks. Ensure correct torque is applied. Tighten in a criss-cross pattern to evenly distribute pressure.

2.0l Engine Cooling System

1

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Holds the thermostat housing to the engine block. Proper torque prevents coolant leaks. Ensure correct torque is applied.
2

Coolant Temperature Sensor Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the coolant temperature sensor to the engine. This helps to read correct engine temperature readings. Often found on the thermostat housing.

2.0l Engine Transmission System

1

Flywheel Bolts

M10 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Attaches the flywheel (or flexplate for automatic transmissions) to the crankshaft. These bolts must withstand the engine's rotating forces. They are typically high-strength bolts. Use new bolts for each installation. Ensure correct torque is applied.

Body

Torque specifications for Body

Body Fuel System

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure straps are correctly positioned before tightening. Final torque after all bolts are started
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure filler neck is correctly aligned before tightening.

Body Exterior Panels

1

Fender Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value. Refer to OEM manual for exact specifications. Start all bolts before final torque.
2

Hood Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value. Ensure proper hood alignment before final torque.
3

Bumper Cover Bolts/Fasteners

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value for bolts. Plastic fasteners do not require a specific torque, ensure they are securely in place. Start all bolts before final torque.
4

Headlight Mounting Bolts

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Ensure proper headlight alignment before final torque.
5

Tail Light Mounting Bolts

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Ensure proper tail light alignment before final torque.
6

Grille Mounting Bolts/Fasteners

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value for bolts. Plastic fasteners do not require a specific torque, ensure they are securely in place. Start all bolts before final torque.
7

Roof Panel Mounting Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value. Verify roof alignment and seam seal per service manual. Start all bolts before final torque.
8

Side View Mirror Mounting Bolts

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Ensure proper mirror adjustment before final torque. Start all bolts before final torque.

Body Doors Deck Lid

1

Door Hinge Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value. Ensure door alignment before final torque.
2

Door Latch Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value. Ensure proper latch operation after tightening. Start all bolts before final torque.
3

Door Striker Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value. Ensure correct door closing and latch engagement after tightening. Start all bolts before final torque.
4

Rear Deck Lid Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value. Ensure proper deck lid alignment and operation before final torque.

Brakes

Torque specifications for Brakes

Brake Calipers

1

Brake Caliper Bolts

M12 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Secures the caliper to the mounting bracket. Ensure proper thread engagement. May require a thread locker depending on manufacturer recommendation.
2

Brake Pad Retaining Pins/Bolts

M8 x 1.25
Torque Specification
24 ft-lbs (32 N·m)
Important Notes
Estimated value. Torque value varies by caliper design. Refer to the manufacturer documentation for specific torque values.
3

Brake Caliper Bleeder Screw

M7 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value. Do not over-tighten. Use a flare wrench to prevent damage. May be a crush washer.

Brake Mounting Brackets

1

Brake Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Attaches the bracket to the steering knuckle or hub carrier. Clean threads and consider a medium strength thread locker. Ensure mating surfaces are flush and clean. May require specific sequence depending on number of bolts.

Brake Rotors And Drums

1

Brake Disc/Drum Retaining Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value. Always refer to the manufacturer's specifications. These screws retain rotor/drum to hub for ease of wheel mounting.

Wheel Mounting

1

Wheel Lug Nuts

M14 x 1.5
Torque Specification
89 ft-lbs (120 N·m)
Important Notes
Torque in a star pattern. Ensure wheel is flush against the rotor or drum. Check torque after initial driving.

Brake Lines

1

Brake Line Fitting

M10 x 1.0
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Estimated value. Use a flare wrench to prevent damage to the fitting. Ensure proper alignment of the fitting to the brake lines. Check for leaks.

Brake Master Cylinder

1

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value. Torque bolts evenly to ensure proper alignment and secure mounting. Ensure proper mounting location to the brake booster.

Brake Booster

1

Brake Booster Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value. Torque bolts evenly to ensure proper alignment and secure mounting.

Brake Proportioning Valve

1

Brake Proportioning Valve Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value. Ensure proper alignment of the proportioning valve to the chassis or mounting point.

Abs Esc Module

1

ABS/ESC Control Module Mounting Bolts

M6 x 1.0
Torque Specification
9 ft-lbs (12 N·m)
Important Notes
Estimated value. Ensure proper alignment of the module to the chassis or mounting point.

Dl382 Transmission

Torque specifications for Dl382 Transmission

Dl382 Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
These are high strength bolts. Ensure proper tightening sequence is followed to avoid stress on the transmission and engine block.
2

Transmission Bellhousing Bolts to Engine Block

M12 x 1.75
Torque Specification
1. 37 ft-lbs (50 N·m) 2. 90°
Important Notes
These are high strength bolts that often require a final angle torque. Always refer to factory service manual for final angle specification.

Dl382 Transmission Case

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten to specified torque to prevent oil leaks and pan distortion. Use new gasket and sealant. Torque in a criss-cross pattern.
2

Differential Housing to Transmission Case Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
These are high strength bolts. Ensure proper tightening sequence is followed to avoid stress on the differential housing and transmission case.
3

Mechatronic Unit Mounting Bolts

M6 x 1.0
Torque Specification
1. 7 ft-lbs (10 N·m) 2. 90°
Important Notes
These bolts require a specific torque and angle procedure. Refer to the factory service manual for the final angle specification.
4

Clutch Actuator Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Torque to spec to ensure the clutch actuator is securely mounted.
5

Input Shaft Support Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the bolts are torqued evenly to secure the input shaft support.
6

Output Shaft Support Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure even torque to properly support the output shaft.

Dl382 Transmission Valve Body

1

Valve Body Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Proper torque is critical for the valve body to function correctly and prevent leaks. Torque in a criss-cross pattern.

Dl382 Transmission External Components

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
These bolts are responsible for connecting the drive axles to the transmission. Proper torque ensures secure power transfer.
2

Transmission Cooler Line Fittings

M16 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Tighten to spec to avoid fluid leaks. Overtightening may cause damage to the fittings.
3

Transmission Fluid Drain/Fill Plug

M18 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Estimated value based on typical drain plugs. Always refer to manufacturer's specifications for specific torque values. Use new crush washer.

Drivetrain

Torque specifications for Drivetrain

Drivetrain Flywheel

1

Flywheel Bolts

M10 x 1.25
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Tighten in a star pattern. Always use new bolts. Ensure flywheel and crankshaft mounting surfaces are clean and free from debris.
2

Clutch Pressure Plate Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value. Tighten in a star pattern. Always use new bolts. Refer to specific clutch manufacturer's specification for the correct torque.
3

Torque Converter Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Tighten in a star pattern. Always use new bolts. Ensure the torque converter is properly seated on the flexplate before tightening. Refer to specific transmission manufacturer's specifications for the correct torque.
4

Flex Plate Bolts

M10 x 1.25
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Tighten in a star pattern. Always use new bolts. Ensure flex plate and crankshaft mounting surfaces are clean and free from debris.

Drivetrain Transmission

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the transmission is properly aligned before tightening. Use a jack to support the transmission's weight during installation. Inspect mounts for damage or wear.
2

Transmission Bellhousing Bolts

M12 x 1.75
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Tighten in a star pattern. Ensure the transmission bell housing aligns properly before tightening the bolts.
3

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten in a cross pattern. Do not overtighten. Use a new gasket when reinstalling the oil pan.

Drivetrain Axles

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure proper alignment of the axle with the flange/hub. Use new bolts if specified. Always check the hub mating surfaces are clean and free of debris.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
185 ft-lbs (250 N·m)
Important Notes
Tighten to specification. Always use a new nut. Ensure the axle is fully seated in the hub before tightening. Refer to specific vehicle manual for proper application.

Drivetrain Driveshaft

1

Propeller/Drive Shaft Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Use proper alignment. Check for proper centering and balance after installation. Ensure all mounting surfaces are clean and free from debris.

Drivetrain Differential

1

Differential Housing Mounting Bolts

M12 x 1.75
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Ensure the differential is properly aligned and supported before tightening. Use new bolts where specified. Verify all surfaces are clean and free from debris.
2

Differential Drain/Fill Plug

M20 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value. Refer to the manufacturer's specific service manual for accurate torque. Ensure the sealing washer is in good condition.

Drivetrain Transfercase

1

Transfer Case Drain/Fill Plug

M20 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value. Refer to the manufacturer's specific service manual for accurate torque. Ensure the sealing washer is in good condition.

Drivetrain Starter

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure proper alignment of the starter motor before tightening. Check starter and engine mounting surface is free from debris. Do not overtighten.

Electrical

Torque specifications for Electrical

Alternator And Starter Motor

1

Alternator Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
2

Starter Motor Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)

Battery Terminals

1

Battery Terminal Nuts

M8 x 1.25
Torque Specification
N/A
Important Notes
Hand tight only. Ensure proper connection.

Ignition Coil And Fuel Pump

1

Ignition Coil Mounting Bolts

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value. Recommended torque range: 10-12 ft-lbs (14-16 Nm).
2

Fuel Pump Electrical Connector Bolts

M6 x 1
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Recommended torque range: 5-7 ft-lbs (7-10 Nm).

A C Compressor And Power Steering Pump

1

A/C Compressor Electrical Connector Bolts

M6 x 1
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Recommended torque range: 5-7 ft-lbs (7-10 Nm).
2

Power Steering Pump Electrical Connector Bolts

M6 x 1
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Recommended torque range: 5-7 ft-lbs (7-10 Nm).

Emissions Sensors

Torque specifications for Emissions_sensors

Oxygen Sensors

1

Oxygen Sensor Bolts

M12 x 1.5
Torque Specification
17.5 ft-lbs (23.75 N·m)
Important Notes
Estimated value, actual specification may vary depending on the manufacturer.
2

Lambda Sensor Bolts

M12 x 1.5
Torque Specification
17.5 ft-lbs (23.75 N·m)
Important Notes
Estimated value, actual specification may vary depending on the manufacturer.

EGR Valve and NOx Sensors

1

EGR Valve Bolts

M10 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
2

NOx Sensor Bolts

M12 x 1.5
Torque Specification
17.5 ft-lbs (23.75 N·m)
Important Notes
Estimated value, actual specification may vary depending on the manufacturer.

Exhaust Manifold and Catalytic Converter

1

Exhaust Manifold/Headers Bolts

M14 x 1.75
Torque Specification
18 ft-lbs (25 N·m)
2

Catalytic Converter to Exhaust Pipe Bolts

M14 x 1.75
Torque Specification
22 ft-lbs (30 N·m)

Diesel Particulate Filter (DPF)

1

DPF Bolts

M16 x 2.0
Torque Specification
35 ft-lbs (47.5 N·m)
Important Notes
Estimated value, actual specification may vary depending on the manufacturer.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold Headers

1

Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secure the exhaust manifold/headers to the engine.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Attach the exhaust manifold/headers to the cylinder head.

Exhaust Pipe

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Connect the exhaust pipe to the exhaust manifold/headers.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Secure the catalytic converter to the exhaust pipe.

Muffler

1

Muffler to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Attach the muffler to the exhaust pipe.

Oxygen Sensor

1

Oxygen Sensor Bolts

M10 x 1.25
Torque Specification
17.5 ft-lbs (23.75 N·m)
Important Notes
Estimated value. Secure the oxygen sensor in place.

Exhaust System Mounting

1

Exhaust System Mounting Bolts

M14 x 1.5
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated value. Secure the exhaust system components to the vehicle's chassis or engine.

Turbocharger

1

Turbocharger Bolts

M16 x 1.5
Torque Specification
35 ft-lbs (47.5 N·m)
Important Notes
Estimated value. Secure the turbocharger to the engine.

Exhaust System Heat Shield

1

Exhaust System Heat Shield Bolts

M10 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value. Secure the heat shield in place.

Fuel

Torque specifications for Fuel

Fuel Rail and Injectors

1

Fuel Rail Bolts

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Proper torque is essential to prevent fuel leaks and maintain engine performance.
2

Fuel Injector Bolts

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Incorrect torque can lead to poor engine performance, decreased fuel efficiency, and potential engine damage.
3

Fuel Injector Hold-Down Bolts

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on general industry standards. Proper torque is essential to ensure the injectors are securely attached and functioning correctly.

Fuel Pump and Filter

1

Fuel Pump Mounting Bolts

M10 x 1.5
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Proper torque is essential to prevent fuel leaks and maintain engine performance.
2

Fuel Filter Bolt/Nut

M12 x 1.75
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Proper torque is essential to prevent fuel leaks and maintain engine performance.
3

Fuel Pump Electrical Connector Bolts

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value based on general industry standards. Proper torque is essential to prevent electrical issues and maintain engine performance.

Fuel Tank and Filler Neck

1

Fuel Tank Strap Bolts

M12 x 1.75
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Proper torque is essential to prevent fuel tank damage and maintain vehicle safety.
2

Fuel Filler Neck Bolts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Proper torque is essential to maintain vehicle safety and prevent fuel spills.

Fuel Pressure Regulator

1

Fuel Pressure Regulator Mounting Bolts

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on general industry standards. Proper torque is essential to ensure the regulator is securely attached and functioning correctly.

Hvac

Torque specifications for Hvac

Air Conditioning System

1

A/C Compressor Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secure the A/C compressor to the engine block.
2

A/C Condenser Mounting Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on general industry standards. Secure the A/C condenser to the radiator support or front bumper.
3

A/C Evaporator Mounting Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on general industry standards. Secure the A/C evaporator to the dashboard or HVAC module.
4

A/C Refrigerant Line Bracket Bolts

M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on general industry standards. Secure the A/C refrigerant lines to the engine compartment or chassis.
5

A/C Line Fittings

N/A
Torque Specification
N/A
Important Notes
Hand tight only. Ensure proper seal.

Heating System

1

Heater Core Mounting Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on general industry standards. Secure the heater core to the dashboard or HVAC module.

Suspension

Torque specifications for Suspension

Front Suspension

1

Control Arm Bolts

M14 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Proper torque is necessary to ensure proper alignment and stability of the suspension.
2

Ball Joint Nut

M16 x 1.5
Torque Specification
48 ft-lbs (65 N·m)
Important Notes
Proper torque is necessary to ensure smooth movement and articulation of the suspension.
3

Tie Rod End Nut

M12 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Proper torque is necessary to ensure proper steering and alignment.

Rear Suspension

1

Upper Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
40 ft-lbs (55 N·m)
Important Notes
Proper torque is necessary to prevent bushing damage and ensure smooth suspension movement. (Estimated value)
2

Lower Control Arm Bolts

M14 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Proper torque is necessary to ensure proper alignment and stability of the suspension. (Estimated value)
3

Coil Spring Mounting Bolts

M12 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Proper torque is necessary to ensure proper suspension movement and articulation. (Estimated value)

Steering System

1

Steering Gear Mounting Bolts

M14 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Proper torque is necessary to ensure proper steering and alignment. (Estimated value)

Strut/Shock Absorber

1

Strut/Shock Absorber Mounting Bolts

M12 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Proper torque is necessary to ensure proper alignment and stability of the suspension.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

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

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

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 engine oil drain plug on a 2016 Audi A5?

30 Nm (22 lb-ft) plus an additional 90 degrees of rotation.

Q2

What torque value should be used when tightening the lug nuts on a 2018 Audi A5?

140 Nm (103 lb-ft). Use a torque wrench and tighten the lug nuts in a star pattern.

Q3

When torquing the cylinder head bolts on a 2020 Audi A5, what IS the proper sequence and tightening procedure?

Follow the specified tightening sequence and torque values provided in the Audi service manual. Use a torque wrench and gradually tighten the bolts in multiple stages.

Q4

What are the torque specifications for the spark plugs on a 2017 Audi A5?

28 Nm (20 lb-ft). Ensure the spark plugs are properly gapped before installation.

Q5

When tightening the brake caliper bolts on a 2019 Audi A5, what torque value should be applied?

120 Nm (89 lb-ft). Use a torque wrench and evenly tighten the bolts to prevent warping or damage.

Q6

What are the recommended torque values for the suspension components on a 2016 Audi A5?

Refer to the Audi service manual for specific torque specifications for suspension components such as control arms, ball joints, and tie rods.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

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

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

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 A5.

  • Digital display for accurate readings
  • Audible alarm when target torque IS reached
  • Multiple units (Nm, ft-lb, in-lb)
  • Reversible ratcheting mechanism
Learn more
Service Procedures
Technical Service Bulletins

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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.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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