Audi Audi S5 2007-2016 Body & Frame Bolt Torque Specifications
This page provides a comprehensive list of body bolt torque specifications for the 2007-2016 Audi S5. Includes values for various body components, ensuring proper assembly and structural integrity.
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
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.
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.
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
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.
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.
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Torque Wrench (3/8" Drive)
Torque Wrench (1/2" Drive)
Angle Gauge
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 End Fascia
Torque specifications for components located at the front of the vehicle, including the headlights, bumper, fenders, grille, and hood latch.
1 Headlight Mounting Bolts
M6 x 1.0
Headlight Mounting Bolts
M6 x 1.0Torque Value
Important Notes
2 Front Bumper Cover Mounting Bolts
M6 x 1.0
Front Bumper Cover Mounting Bolts
M6 x 1.0Torque Value
Important Notes
3 Front Bumper Reinforcement to Frame Bolts
M8 x 1.25
Front Bumper Reinforcement to Frame Bolts
M8 x 1.25Torque Value
Important Notes
4 Fender Mounting Bolts
M6 x 1.0
Fender Mounting Bolts
M6 x 1.0Torque Value
Important Notes
5 Grille Mounting Bolts
M5 x 0.8
Grille Mounting Bolts
M5 x 0.8Torque Value
Important Notes
6 Hood Latch Mounting Bolts
M6 x 1.0
Hood Latch Mounting Bolts
M6 x 1.0Torque Value
Important Notes
7 Hood Hinge Bolts
M8 x 1.25
Hood Hinge Bolts
M8 x 1.25Torque Value
Important Notes
Doors
Torque specifications for door components including hinges, latches, trim, and lock mechanisms.
1 Door Hinge Bolts (Body Side)
M8 x 1.25
Door Hinge Bolts (Body Side)
M8 x 1.25Torque Value
Important Notes
2 Door Hinge Bolts (Door Side)
M8 x 1.25
Door Hinge Bolts (Door Side)
M8 x 1.25Torque Value
Important Notes
3 Door Latch Striker Plate Bolts
M8 x 1.25
Door Latch Striker Plate Bolts
M8 x 1.25Torque Value
Important Notes
4 Door Trim Panel Retaining Screws
N/A (Phillips Head Screw)
Door Trim Panel Retaining Screws
N/A (Phillips Head Screw)Torque Value
Important Notes
5 Door Handle Mounting Bolts/Screws
M5 x 0.8 (Estimated)
Door Handle Mounting Bolts/Screws
M5 x 0.8 (Estimated)Torque Value
Important Notes
6 Door Lock Actuator Mounting Bolts
M6 x 1.0
Door Lock Actuator Mounting Bolts
M6 x 1.0Torque Value
Important Notes
Rear End Fascia
Torque specifications for components located at the rear of the vehicle, including the bumper, taillights, and trunk lid.
1 Rear Bumper Cover Mounting Bolts
M6 x 1.0
Rear Bumper Cover Mounting Bolts
M6 x 1.0Torque Value
Important Notes
2 Rear Bumper Reinforcement to Frame Bolts
M8 x 1.25
Rear Bumper Reinforcement to Frame Bolts
M8 x 1.25Torque Value
Important Notes
3 Taillight Mounting Bolts
M6 x 1.0
Taillight Mounting Bolts
M6 x 1.0Torque Value
Important Notes
4 Trunk Lid Hinge Bolts
M8 x 1.25
Trunk Lid Hinge Bolts
M8 x 1.25Torque Value
Important Notes
5 Trunk Lid Latch Striker Plate Bolts
M8 x 1.25
Trunk Lid Latch Striker Plate Bolts
M8 x 1.25Torque Value
Important Notes
Interior Cabin
Torque specifications for interior components, including the dashboard, seats, center console, and steering column.
1 Dashboard Mounting Bolts
M6 x 1.0 (Varies)
Dashboard Mounting Bolts
M6 x 1.0 (Varies)Torque Value
Important Notes
2 Dashboard Mounting Bolts
M8 x 1.25 (Varies)
Dashboard Mounting Bolts
M8 x 1.25 (Varies)Torque Value
Important Notes
3 Seat Mounting Bolts
M8 x 1.25 (Varies)
Seat Mounting Bolts
M8 x 1.25 (Varies)Torque Value
Important Notes
4 Seat Mounting Bolts
M10 x 1.5 (Varies)
Seat Mounting Bolts
M10 x 1.5 (Varies)Torque Value
Important Notes
5 Center Console Mounting Bolts
M5 x 0.8 (Varies)
Center Console Mounting Bolts
M5 x 0.8 (Varies)Torque Value
Important Notes
6 Center Console Mounting Bolts
M6 x 1.0 (Varies)
Center Console Mounting Bolts
M6 x 1.0 (Varies)Torque Value
Important Notes
7 Steering Column Mounting Bolts
M10 x 1.5
Steering Column Mounting Bolts
M10 x 1.5Torque Value
Important Notes
General Body Fasteners
Torque specifications for general body panel and side skirt fasteners.
1 Body Panel Retaining Bolts
M6 x 1.0
Body Panel Retaining Bolts
M6 x 1.0Torque Value
Important Notes
2 Side Skirt Mounting Bolts
M6 x 1.0
Side Skirt Mounting Bolts
M6 x 1.0Torque Value
Important Notes
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
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
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
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 Why is it important to use the correct torque specifications for body bolts?
Why is it important to use the correct torque specifications for body bolts?
Using the correct torque ensures proper clamping force, preventing bolts from loosening due to vibration, temperature changes, or load. Under-tightening can lead to components shifting or detaching, while over-tightening can damage threads, deform panels, or even break bolts. For example, overtightening the bolts securing a fender can warp the fender metal, causing alignment issues and even paint cracking.
Q2 What happens if I over-tighten a body bolt?
What happens if I over-tighten a body bolt?
Over-tightening a bolt can stretch or damage the threads of the bolt or the receiving hole. It can also distort the panel it is fastening, potentially leading to fitment problems or paint damage. In extreme cases, the bolt head or the bolt itself can break. For instance, over-torquing a bumper bracket bolt could easily crack the surrounding plastic.
Q3 What happens if I under-tighten a body bolt?
What happens if I under-tighten a body bolt?
Under-tightening a bolt will lead to insufficient clamping force, allowing the fastened components to move or vibrate. This can cause noises, damage, and eventually component failure. For example, an under-torqued door hinge bolt could cause the door to sag or become misaligned.
Q4 Do I need to use thread locker on body bolts?
Do I need to use thread locker on body bolts?
Generally, thread locker is not necessary for most body bolts unless specifically indicated in the service manual. Factory-installed bolts may have a pre-applied thread locker which could be re-applied in specific cases. However, for areas prone to vibration, like the inner wheel well liner, a thread locker can add an additional layer of safety.
Q5 Can I reuse body bolts?
Can I reuse body bolts?
While many body bolts can be reused, always inspect them for damage or stretching. If there is any doubt, replace them. Some bolts, especially those holding critical components such as seat rails, are often recommended for one-time use only. Refer to the service manual for specific replacement guidance. When in doubt, always replace.
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
Torque Wrench
A calibrated torque wrench is essential for accurately tightening bolts to the specified torque. Using the correct tool prevents under-tightening or over-tightening which can result in damage.
- Adjustable torque settings
- Click or digital indication of torque reached
- Variety of drive sizes (1/4", 3/8", 1/2")
Socket Set
A comprehensive socket set, both metric and potentially imperial, is required for the different size bolt heads on the vehicle's body.
- Wide range of metric socket sizes
- Variety of drive sizes (1/4", 3/8", 1/2")
- Deep and standard sockets
Extension Bars
Extension bars are necessary to reach fasteners that are in recessed or hard to access areas.
- Various lengths for added reach
- Can be used with socket wrenches
- Can have flexible joints
Ratchet
A ratchet is used to turn the sockets on bolts quickly and efficiently.
- Variety of drive sizes (1/4", 3/8", 1/2")
- Reversible direction
- Fine tooth mechanism for small increments
Service Procedures
Front Bumper Cover Removal and Installation
This procedure details the removal and installation of the front bumper cover, including relevant bolt torque specifications.
- Disconnect any electrical connectors to the bumper cover (e.g., fog lights, parking sensors).
- Remove the fasteners holding the bumper cover to the fenders (typically screws or bolts).
- Remove the fasteners securing the bumper cover to the front carrier.
- Carefully remove the bumper cover.
- Install the bumper cover, ensuring proper alignment.
- Reinstall all removed fasteners to their correct torque specifications.
- Reconnect any electrical connectors and verify their operation.
Door Panel Removal and Installation
This procedure details the removal and installation of the door panels, including relevant bolt torque specifications.
- Remove the trim pieces and covers that conceal screws or bolts.
- Disconnect any electrical connections to switches, speakers or other components attached to the door panel.
- Remove all fasteners securing the door panel to the door shell.
- Carefully remove the door panel.
- Install the door panel, ensuring proper alignment.
- Reinstall all fasteners using specified torque
- Reconnect all electrical connections and test the functionality.
Headlight Assembly Removal and Installation
This procedure details the removal and installation of headlight assemblies, including relevant bolt torque specifications.
- Disconnect the electrical connections to the headlight assembly.
- Remove all bolts securing the headlight assembly to the car's body.
- Carefully remove the headlight assembly.
- Install the headlight assembly, ensuring proper alignment.
- Reinstall all bolts to specified torque
- Reconnect electrical connections and verify correct operation.
Technical Service Bulletins
Corrosion Issues Around Body Bolts
2011-05-12Some 2007-2011 Audi S5 models have exhibited corrosion around body bolt locations, particularly in areas exposed to road salt. This corrosion can affect the structural integrity of the body and make bolt removal difficult.
Resolution: Inspect body bolt locations for corrosion. Clean and treat affected areas with a rust inhibitor. Ensure proper torque when reinstalling. Consider using anti-seize lubricant on fasteners that are prone to corrosion
Bumper Cover Fastener Breakage
2013-09-20Reports have been received of bumper cover fasteners failing prematurely on 2012-2014 Audi S5 models. This can lead to poor fitment and movement of the bumper cover. Over-torquing is one potential cause.
Resolution: Replace all bumper cover fasteners using the correct torque settings. Do not overtighten. Inspect the bumper cover and the mounting area for any damage that may contribute to premature fastener failure.
Door Alignment Issues
2015-03-01Some 2014-2016 Audi S5 vehicles have been reported with door misalignment, which can often be caused by improperly tightened door hinges or striker bolts. Incorrect torque can cause binding and poor alignment.
Resolution: Check door hinge and striker bolts. Verify the torque settings. Adjust door alignment as needed, re-torquing all hardware to specified levels.
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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.
- 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.