Audi Audi Q5 2008-2017 Drivetrain Bolt Torque Specifications & Fastener Values
Audi Audi Q5 2008-2017

Audi Audi Q5 2008-2017 Drivetrain Bolt Torque Specifications

Comprehensive guide to drivetrain bolt torque specifications for the first generation (2008-2017) Audi Q5, including transmission, driveshaft, and differential mounting bolts.

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

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

Automatic Transmission

Torque specifications for the automatic transmission assembly and related components.

1

Transmission Mounting Bolts (To Engine)

M12 x 1.75
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Secures transmission to engine block. Correct torque ensures alignment and prevents vibration.
2

Transmission Mount Bolts (To Subframe/Body)

M10 x 1.5
Important Notes
Secures transmission mount to chassis. Angle turn ensures proper mount tension.
3

Transmission Pan Bolts

M6 x 1.0
Torque Value
7 ft-lbs (9 N·m)
Important Notes
Secures the transmission pan. Correct torque prevents leaks. Over-tightening may damage the pan.
4

Mechatronic Unit Bolts

M6 x 1.0
Torque Value
7 ft-lbs (9 N·m)
Important Notes
Secures the valve body. Correct torque is essential for leak prevention. Estimated value.
5

Fill Plug

M18 x 1.5
Torque Value
18 ft-lbs (25 N·m)
Important Notes
Ensures a proper seal. Over-tightening can damage the sealing washer. Estimated Value.
6

Drain Plug

M18 x 1.5
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Prevents oil leaks. Over-tightening can damage threads. Estimated Value.

Manual Transmission

Torque specifications for the manual transmission assembly and related components.

1

Transmission Mounting Bolts (To Engine)

M12 x 1.75
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Secures transmission to engine block. Proper torque is critical for structural integrity.
2

Transmission Mount Bolts (To Subframe/Body)

M10 x 1.5
Important Notes
Secures mount to the chassis. Angle turn ensures proper tension.
3

Bellhousing Bolts

M10 x 1.5
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Connects transmission to engine block. Ensures proper alignment. Estimated value.
4

Flywheel/Clutch Pressure Plate Bolts

M12 x 1.5
Important Notes
Critical fasteners. Incorrect torque leads to clutch issues. Final angle ensures proper stretch.
5

Transmission Oil Drain and Fill Plugs

M18 x 1.5
Torque Value
18 ft-lbs (25 N·m)
Important Notes
Prevents oil leaks. Over-tightening can damage threads. Estimated Value.

Transfer Case

Torque specifications for the transfer case assembly and related components.

1

Transfer Case Mounting Bolts (To Transmission)

M12 x 1.75
Torque Value
37 ft-lbs (50 N·m)
Important Notes
Secures the transfer case to the transmission. Ensures alignment and prevents leaks.
2

Transfer Case Output Shaft Flange Bolts

M10 x 1.5
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Secures output flange to drive shaft. Incorrect torque can cause vibrations.
3

Transfer Case Fill Plug

M18 x 1.5
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Ensures proper sealing. Prevents fluid leaks. Estimated value.
4

Transfer Case Drain Plug

M18 x 1.5
Torque Value
22 ft-lbs (30 N·m)
Important Notes
Prevents oil leaks, proper seal. Estimated value.

Driveshafts

Torque specifications for the driveshaft and related components.

1

Driveshaft to Transfer Case/Transmission Flange Bolts

M10 x 1.5
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Connects driveshaft to transfer case/transmission. Prevents vibrations.
2

Driveshaft to Differential Flange Bolts

M10 x 1.5
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Connects driveshaft to differential. Prevents vibrations.
3

Center Support Bearing Mounting Bolts

M8 x 1.25
Torque Value
22 ft-lbs (30 N·m)
Important Notes
Secures the center bearing, preventing vibrations and premature wear. Estimated value.

Front And Rear Differentials

Torque specifications for front and rear differential assemblies and related components.

1

Differential Housing Mounting Bolts (To Subframe/Body)

M12 x 1.75
Torque Value
37 ft-lbs (50 N·m)
Important Notes
Secures differential to chassis. Ensures proper mounting and prevents stress.
2

Differential Side Cover Bolts

M8 x 1.25
Torque Value
18 ft-lbs (25 N·m)
Important Notes
Secures side cover. Prevents leaks. Over-tightening may distort the cover.
3

Differential Fill Plug

M18 x 1.5
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Maintains a proper seal. Prevents fluid leaks. Estimated value.
4

Differential Drain Plug

M18 x 1.5
Torque Value
22 ft-lbs (30 N·m)
Important Notes
Ensures proper seal. Prevents fluid leaks. Estimated value.
5

Output Shaft Flange Bolts

M10 x 1.5
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Secures output flange to driveshaft. Prevents vibrations.

Wheel Hubs And Bearings

Torque specifications for wheel hub and bearing components.

1

Wheel Bearing Retaining Bolt

M14 x 1.5
Important Notes
**CRITICAL FASTENER**. Incorrect torque leads to bearing failure. Final angle turn ensures proper tension.
2

ABS Sensor Bolt

M6 x 1.0
Torque Value
7 ft-lbs (9 N·m)
Important Notes
Securely holds the sensor. Over-tightening may damage sensor. Estimated value.

Axles

Torque specifications for axle shaft and CV joint components.

1

Axle Shaft Bolt/Nut to Transmission Flange (Front)

M10 x 1.5
Torque Value
44 ft-lbs (60 N·m)
Important Notes
Connects axle to the transmission. Ensures alignment and prevents vibration.
2

Axle Shaft Bolt/Nut to Differential Flange (Rear)

M10 x 1.5
Torque Value
44 ft-lbs (60 N·m)
Important Notes
Connects axle to differential. Ensures alignment and prevents vibration.
3

CV Joint Bolts

M8 x 1.25
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Secures the CV joint. Over-tightening can cause damage.

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

Why are torque specifications important for drivetrain bolts?

Correct torque is crucial for proper clamping force. Under-torquing can lead to loosening, component failure, and potential accidents. Over-torquing can damage threads, bolts, or the component itself, also resulting in failure. Using a torque wrench and following specified values ensures safe and reliable operation.

Q2

What happens if I over-torque a driveshaft bolt?

Over-torquing a driveshaft bolt can stretch or damage the bolt, leading to weakened clamping force or even bolt fracture. This can result in driveshaft vibration, noise, or a catastrophic failure, which could cause loss of vehicle control. Additionally, damaged threads in the component being bolted to would require repair or replacement. Example: If a driveshaft bolt specified at 40Nm is tightened to 60Nm, you risk significant damage.

Q3

Can I reuse drivetrain bolts?

Some drivetrain bolts, particularly those with stretch properties, are intended for single use only. These are often referred to as Torque-to-Yield (TTY) bolts and should ALWAYS be replaced. Reusing TTY bolts can lead to inadequate clamping force and component failure, even if they appear undamaged. Consult your service manual to confirm if a particular bolt needs replacement. Example: Bolts securing the differential housing may be TTY bolts.

Q4

Do I need any special tools to torque drivetrain bolts?

Yes, a calibrated torque wrench is essential. Using a standard wrench or impact tool can lead to inaccurate torque values and risk damage. Depending on the bolt location, you may also need socket extensions, universal joints, or specific sockets. Example: Wheel bearing hub bolts may require a triple-square socket.

Q5

What should I do if I suspect a drivetrain bolt is loose?

If you suspect a drivetrain bolt is loose (e.g., hearing noises, vibration), stop driving immediately. Inspect the bolt and surrounding components for damage. If the bolt is loose, do not attempt to retighten it without verifying the correct torque. Consult a service manual and use a torque wrench to tighten to the appropriate value. If there is any evidence of damage, replace the bolt and follow tightening procedures.

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

Torque Wrench (1/2 inch drive)

A calibrated torque wrench with a 1/2 inch drive is essential for applying accurate torque to larger drivetrain bolts.

  • Wide torque range (e.g., 20-200 ft-lbs)
  • Click-type mechanism for accurate torque application
  • Reversible head
Learn more

Torque Wrench (3/8 inch drive)

A calibrated torque wrench with a 3/8 inch drive is useful for accessing smaller and more confined drivetrain bolts.

  • Torque range (e.g., 5-80 ft-lbs)
  • Click-type mechanism
  • Compact design
Learn more

Socket Set (Metric)

A comprehensive set of metric sockets to fit various drivetrain bolt heads. Includes a range of sizes and depths.

  • Various sizes ranging from 8mm to 24mm or higher
  • 6-point sockets for a secure grip
  • Deep sockets for recessed bolts
Learn more

Extension Bars (Various Lengths)

Extension bars of different lengths to reach recessed or difficult to access drivetrain bolts. Can be used with ratchets and torque wrenches.

  • Various lengths for optimal accessibility
  • Durable steel construction
  • Secure connection
Learn more

Universal Joint

A universal joint to facilitate access to bolts at an angle. Allows torque application even when straight access is not possible.

  • Allows angular access
  • Durable construction
  • Various drive sizes
Learn more

Torx Socket Set

A set of Torx sockets for use on internal torx fasteners found on the drivetrain.

  • Torx sizes from T20 to T60 or higher
  • Durable steel construction
  • Properly sized and keyed for torx bolts
Learn more
Service Procedures

Driveshaft Bolt Torque Procedure

Procedure for torquing driveshaft bolts to the correct specification to ensure proper driveline function and prevent damage.

  • 1. Identify the driveshaft bolts to be torqued.
  • 2. Consult repair manual for the correct torque specification for your specific model year.
  • 3. Clean the threads of both the bolt and the threaded hole using a wire brush.
  • 4. Install the bolts by hand to ensure proper thread engagement.
  • 5. Using the appropriate sized socket, tighten the bolts in a star pattern to the specified torque value, applying a smooth motion
  • 6. Double-check the torque setting on each bolt using the torque wrench.
View full procedure

Differential Mounting Bolt Torque Procedure

Procedure for properly torquing the differential mounting bolts to the correct specification.

  • 1. Identify all the mounting bolts for the front or rear differential.
  • 2. Refer to the repair manual to find the required torque specifications for each bolt.
  • 3. Clean the bolts and threaded holes to remove any debris.
  • 4. Install the differential mounting bolts hand tight first.
  • 5. Following a star or cross pattern, tighten all bolts in stages to the specified torque using a calibrated torque wrench.
  • 6. Once fully torqued, double check each bolt.
View full procedure

Transmission Mount Bolt Torque Procedure

Procedure for torquing transmission mount bolts to the proper specification to ensure proper driveline alignment and reduce vibrations.

  • 1. Locate all the bolts attaching the transmission mounts to the transmission and chassis.
  • 2. Check the repair manual for the correct torque specification for these bolts.
  • 3. Clean all mating surfaces and hardware to ensure proper contact.
  • 4. Install all the mount bolts and hand tighten.
  • 5. Using a calibrated torque wrench, tighten the bolts to the correct torque specifications in a star pattern, or as specified by the manufacturer.
  • 6. Confirm all bolts are properly torqued and double-check as needed.
View full procedure
Technical Service Bulletins

Driveshaft Bolt Loosening Issue

2012-05-15

Some 2008-2012 Audi Q5 models have experienced driveshaft bolt loosening which can lead to excessive vibration or damage. This issue was found to be more common in vehicles subjected to extreme temperatures and heavy use. Improper torque during assembly may also contribute to the issue.

2008-2012

Resolution: Always use new bolts when servicing the driveshaft. Ensure the bolts are torqued to the manufacturer's specified torque. Consider applying a thread locking compound if needed and re-check the torque after initial use and periodically.

Differential Mounting Bolt Breakage

2015-09-22

A small number of Audi Q5s, particularly those in the 2013-2016 model years, have reported differential mounting bolt breakage. This may be caused by material fatigue and improper torquing practices. Vibration and drivetrain noises are commonly observed.

2013-2016

Resolution: Inspect the mounting bolts for cracks or deformation. When replacing bolts, ensure they are of the same grade and correct specification and torque to the manufacturer's specified torque. If using reused bolts, ensure they are inspected thoroughly for damage prior to use and tightened to spec. Recheck torque after a few hundred miles to ensure no movement.

Transmission Mount Bolt Torque Values

2017-01-10

A service bulletin issued to update the recommended torque value for transmission mount bolts on all Audi Q5 models. Previous torque specifications were found to be inconsistent and could lead to premature mount failure, vibration, or potential bolt breakage.

2008-2017

Resolution: Ensure you are using the latest repair manual or technical documentation to obtain the correct torque specification. If using outdated documentation, update using the latest official guidelines.

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.

Facebook Contact
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.

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.

© 2025 Audi Specs. All rights reserved.

Privacy Policy Terms of Service