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

Audi Audi Q5 2008-2017 Suspension Bolt Torque Specifications

Comprehensive guide to suspension bolt torque specifications for the 2008-2017 Audi Q5 (8R) platform. Includes detailed torque values for various suspension components.

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

Front Suspension

This section details the torque specifications for the front suspension components of the 2008-2017 Audi Q5, including control arms, sway bar links, and strut assemblies.

1

Upper Control Arm to Body

M10 x 1.5
Torque Value
52 ft-lbs (70 N·m)
Important Notes
Estimated value based on similar Audi models. Ensure threads are clean and lubricated.
2

Upper Control Arm to Ball Joint/Upright

M12 x 1.5
Important Notes
Torque-to-yield bolt. Replace after removal. Angle tightening is crucial for correct clamping force.
3

Lower Control Arm to Body (Front Bolt)

M14 x 1.5
Important Notes
Torque-to-yield bolt. Replace after removal. Angle tightening is crucial for correct clamping force.
4

Lower Control Arm to Body (Rear Bolt)

M14 x 1.5
Important Notes
Torque-to-yield bolt. Replace after removal. Angle tightening is crucial for correct clamping force.
5

Lower Control Arm to Ball Joint/Upright

M12 x 1.5
Important Notes
Torque-to-yield bolt. Replace after removal. Angle tightening is crucial for correct clamping force.
6

Sway Bar End Link to Strut Assembly

M10 x 1.25
Torque Value
44 ft-lbs (60 N·m)
Important Notes
Estimated value based on similar Audi models. Ensure proper alignment.
7

Sway Bar End Link to Sway Bar

M8 x 1.25
Torque Value
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar Audi models. Ensure proper alignment.
8

Strut Mount to Body

M8 x 1.25
Torque Value
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar Audi models. Use a cross-tightening pattern.
9

Strut to Upright/Knuckle Bolts

M14 x 1.5
Important Notes
Safety critical. Torque-to-yield bolt. Replace after removal. Angle tightening is crucial for correct clamping force.
10

Brake Caliper to Upright/Knuckle (Front)

M12 x 1.75
Torque Value
103 ft-lbs (140 N·m)
Important Notes
Use a cross-tightening pattern. Ensure caliper is properly aligned.

Rear Suspension

This section details the torque specifications for the rear suspension components of the 2008-2017 Audi Q5, including control arms, sway bar links, and shock absorbers.

1

Upper Control Arm to Body (Rear)

M10 x 1.5
Torque Value
48 ft-lbs (65 N·m)
Important Notes
Estimated value based on similar Audi models. Ensure threads are clean and lubricated.
2

Upper Control Arm to Upright (Rear)

M12 x 1.5
Important Notes
Torque-to-yield bolt. Replace after removal. Angle tightening is crucial for correct clamping force.
3

Lower Control Arm to Body (Rear, Front Bolt)

M14 x 1.5
Important Notes
Torque-to-yield bolt. Replace after removal. Angle tightening is crucial for correct clamping force.
4

Lower Control Arm to Body (Rear, Rear Bolt)

M14 x 1.5
Important Notes
Torque-to-yield bolt. Replace after removal. Angle tightening is crucial for correct clamping force.
5

Lower Control Arm to Upright (Rear)

M12 x 1.5
Important Notes
Torque-to-yield bolt. Replace after removal. Angle tightening is crucial for correct clamping force.
6

Sway Bar End Link to Control Arm (Rear)

M8 x 1.25
Torque Value
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar Audi models. Ensure proper alignment.
7

Sway Bar End Link to Sway Bar (Rear)

M8 x 1.25
Torque Value
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar Audi models. Ensure proper alignment.
8

Shock Absorber to Body (Rear)

M10 x 1.5
Torque Value
52 ft-lbs (70 N·m)
Important Notes
Estimated value based on similar Audi models. Ensure threads are clean and lubricated.
9

Shock Absorber to Control Arm (Rear)

M12 x 1.5
Important Notes
Torque-to-yield bolt. Replace after removal. Angle tightening is crucial for correct clamping force.
10

Brake Caliper to Upright/Knuckle (Rear)

M12 x 1.75
Torque Value
66 ft-lbs (90 N·m)
Important Notes
Use a cross-tightening pattern. Ensure caliper is properly aligned.

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 correct torque specifications important for suspension bolts?

Correct torque is crucial for ensuring the proper clamping force between components. Under-torquing can lead to bolts loosening, causing suspension instability, noises, and potential component failure. Over-torquing can stretch or break bolts, damage threads, and also compromise suspension integrity. Proper torque specifications ensure components function as designed and maintain vehicle handling and safety.

Q2

What happens if I over-torque a suspension bolt?

Over-torquing can cause several problems. Firstly, you may stretch or even break the bolt itself, potentially leading to immediate component failure or future issues. Additionally, over-torquing can damage the threads in the mounting point, requiring repairs like retapping or replacing the component. It can also deform or damage the components being joined together, leading to misalignment and premature wear. For example, over-torquing a lower control arm bolt could warp the bushing and cause premature wear.

Q3

Can I reuse suspension bolts?

It is generally recommended NOT to reuse torque-to-yield (TTY) bolts, which are commonly found in many Audi suspension applications. TTY bolts are designed to stretch when torqued to their specification, and re-using them can result in them failing to reach the designed clamping force, or potentially breaking when re-torqued. Even if a bolt isn't TTY, it should still be carefully inspected before reuse and replaced if there is any sign of damage or stretch.

Q4

Do I need to use thread locker on suspension bolts?

Whether to use thread locker depends on the specific bolt and manufacturer recommendation. Some Audi suspension bolts may come pre-coated with a thread locking compound. Always consult your repair manual. If specified, apply the correct thread locker (such as Loctite) according to the manufacturer's instructions. Improper thread locker can lead to improper torque values, so it’s crucial to use the appropriate product.

Q5

What tools do I need to properly torque suspension bolts?

You will primarily need a calibrated torque wrench that covers the required torque range, sockets that are the correct size for your specific bolts and sometimes an extension. It's important to use a torque wrench that is accurate and in good condition and appropriate for the given torque specification. Check the wrench regularly to make sure it's still within its calibration window. Always follow the proper torque procedure.

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" Drive)

A calibrated torque wrench is essential for applying precise torque to suspension bolts, ensuring proper and safe assembly. Must have a range covering the necessary torque values.

  • Calibrated to a specific accuracy
  • Click-type mechanism to indicate reached torque
  • Range of 20-200 ft-lbs or similar
Learn more

Torque Wrench (3/8" Drive)

A calibrated torque wrench is essential for applying precise torque to smaller suspension bolts, ensuring proper and safe assembly. Must have a range covering the necessary torque values.

  • Calibrated to a specific accuracy
  • Click-type mechanism to indicate reached torque
  • Range of 5-80 ft-lbs or similar
Learn more

Socket Set (Metric)

A comprehensive set of metric sockets is needed to fit the various sizes of bolts and nuts in the Q5's suspension system. Include deep sockets for hard-to-reach fasteners.

  • Sizes ranging from 10mm to 24mm or higher
  • 6-point and 12-point sockets
  • Shallow and deep sockets
Learn more

Wrench Set (Metric)

A set of metric wrenches is necessary for holding some fasteners while torqueing others.

  • Sizes ranging from 10mm to 24mm
  • Combination and box-end wrenches
Learn more

Extension Bars

Extension bars of various lengths assist in reaching fasteners that are located in tight or hard-to-access places.

  • Various lengths to navigate around suspension components
  • 1/2" and 3/8" drive options
Learn more

Jack and Jack Stands

A safe and reliable jack and jack stands are required to lift and support the vehicle safely while performing any suspension work.

  • High weight rating
  • Stable base
  • Adjustable height
Learn more

Wheel Chocks

Wheel chocks prevent the vehicle from rolling while lifted for suspension work.

  • Durable material
  • Non-slip surface
  • Proper size for vehicle tires
Learn more

Pry Bar

A pry bar is often needed to help align suspension components during reassembly.

  • Durable and sturdy
  • Various lengths
Learn more

Penetrating Oil

Penetrating oil is essential for loosening rusted or seized suspension bolts and nuts before attempting to remove them.

  • Quick-acting formula
  • Corrosion resistance
Learn more
Service Procedures

Front Upper Control Arm Bolt Torque Procedure

This procedure outlines the proper steps to torque the bolts of the front upper control arm on a 2008-2017 Audi Q5.

  • Loosen the wheel nuts while the car is still on the ground.
  • Lift the vehicle using a jack, then securely place jack stands under the designated jacking points.
  • Remove the wheel.
  • Locate the upper control arm bolts and nuts.
  • If the suspension arm was removed for servicing, install the new suspension arm and attach the bolts hand tight.
  • Using the appropriate size socket and torque wrench, tighten the upper control arm bolts to 70 Nm + 90 degrees.
  • Reinstall the wheel.
  • Lower the vehicle to the ground.
  • Re-torque the wheel bolts to the proper specification.
View full procedure

Front Lower Control Arm Bolt Torque Procedure

This procedure outlines the proper steps to torque the bolts of the front lower control arm on a 2008-2017 Audi Q5.

  • Loosen the wheel nuts while the car is still on the ground.
  • Lift the vehicle using a jack, then securely place jack stands under the designated jacking points.
  • Remove the wheel.
  • Locate the lower control arm bolts and nuts.
  • If the suspension arm was removed for servicing, install the new suspension arm and attach the bolts hand tight.
  • Using the appropriate size socket and torque wrench, tighten the lower control arm bolts to 100 Nm + 90 degrees.
  • Reinstall the wheel.
  • Lower the vehicle to the ground.
  • Re-torque the wheel bolts to the proper specification.
View full procedure

Front Strut/Shock Absorber Lower Bolt Torque Procedure

This procedure outlines the proper steps to torque the lower strut/shock absorber mounting bolts on a 2008-2017 Audi Q5.

  • Loosen the wheel nuts while the car is still on the ground.
  • Lift the vehicle using a jack, then securely place jack stands under the designated jacking points.
  • Remove the wheel.
  • Locate the lower strut/shock absorber mounting bolts.
  • If the shock/strut was removed for servicing, install the new strut/shock and attach the bolts hand tight.
  • Using the appropriate size socket and torque wrench, tighten the lower strut/shock absorber bolts to 100 Nm + 90 degrees.
  • Reinstall the wheel.
  • Lower the vehicle to the ground.
  • Re-torque the wheel bolts to the proper specification.
View full procedure

Rear Upper Control Arm Bolt Torque Procedure

This procedure outlines the proper steps to torque the bolts of the rear upper control arm on a 2008-2017 Audi Q5.

  • Loosen the wheel nuts while the car is still on the ground.
  • Lift the vehicle using a jack, then securely place jack stands under the designated jacking points.
  • Remove the wheel.
  • Locate the upper control arm bolts and nuts.
  • If the suspension arm was removed for servicing, install the new suspension arm and attach the bolts hand tight.
  • Using the appropriate size socket and torque wrench, tighten the upper control arm bolts to 70 Nm + 90 degrees.
  • Reinstall the wheel.
  • Lower the vehicle to the ground.
  • Re-torque the wheel bolts to the proper specification.
View full procedure

Rear Lower Control Arm Bolt Torque Procedure

This procedure outlines the proper steps to torque the bolts of the rear lower control arm on a 2008-2017 Audi Q5.

  • Loosen the wheel nuts while the car is still on the ground.
  • Lift the vehicle using a jack, then securely place jack stands under the designated jacking points.
  • Remove the wheel.
  • Locate the lower control arm bolts and nuts.
  • If the suspension arm was removed for servicing, install the new suspension arm and attach the bolts hand tight.
  • Using the appropriate size socket and torque wrench, tighten the lower control arm bolts to 100 Nm + 90 degrees.
  • Reinstall the wheel.
  • Lower the vehicle to the ground.
  • Re-torque the wheel bolts to the proper specification.
View full procedure

Rear Strut/Shock Absorber Lower Bolt Torque Procedure

This procedure outlines the proper steps to torque the lower strut/shock absorber mounting bolts on a 2008-2017 Audi Q5.

  • Loosen the wheel nuts while the car is still on the ground.
  • Lift the vehicle using a jack, then securely place jack stands under the designated jacking points.
  • Remove the wheel.
  • Locate the lower strut/shock absorber mounting bolts.
  • If the shock/strut was removed for servicing, install the new strut/shock and attach the bolts hand tight.
  • Using the appropriate size socket and torque wrench, tighten the lower strut/shock absorber bolts to 100 Nm + 90 degrees.
  • Reinstall the wheel.
  • Lower the vehicle to the ground.
  • Re-torque the wheel bolts to the proper specification.
View full procedure
Technical Service Bulletins

Suspension Component Corrosion Issues

2014-03-15

This bulletin addresses premature corrosion issues observed on suspension components, specifically control arms, and the potential for bolt seizing.

2008-2012

Resolution: Inspect all suspension components for corrosion during service. Apply anti-seize compound to all bolts before re-installation. Consider replacing severely corroded parts.

Front Suspension Noise Diagnosis and Repair

2016-07-22

This bulletin details a specific noise complaint related to the front suspension. Incorrect torque on suspension bolts can cause noise.

2013-2017

Resolution: Re-torque all front suspension bolts to the specified values. Inspect bushings for wear and replace as necessary. Check for play in suspension components.

Rear Suspension Alignment and Torque Concerns

2017-11-10

This bulletin outlines the importance of proper alignment after suspension component replacement. Incorrect torque can cause alignment issues and increased tire wear.

2008-2017

Resolution: Always check and perform a wheel alignment after any work on the rear suspension. Ensure all bolts are torqued to the proper specification. Recheck alignment after 500 miles or as specified.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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