Audi Audi RS5 2017-present DQ500 Transmission Transmission Torque Specifications & Bolt Torque Values
Audi Audi RS5 2017-present

Audi Audi RS5 2017-present DQ500 Transmission Torque Specifications

Detailed torque specifications for all bolts related to the DQ500 transmission found in the 2017-Present Audi RS5 (B9) model. Includes critical tightening torques and sequences.

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

Transmission Housing

Torque specifications for bolts related to the main transmission housing assembly, including case halves and center housing.

1

Transmission Case Bolts

M8 x 1.25
Torque Value
30 ft-lbs (40 N·m)
Important Notes
Secures main transmission case halves. Criss-cross pattern recommended. Estimated based on industry standard for M8 bolts.
2

Main Housing to Center Housing Bolts

M8 x 1.25
Torque Value
22 ft-lbs (30 N·m)
Important Notes
Secures the main transmission housing sections. Criss-cross pattern required to prevent warpage. Estimated based on similar Audi models.

Mechatronics Unit

Torque specifications for bolts related to the mechatronics unit, including mounting to the transmission and valve body attachment.

1

TCU Mounting Bolts

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Secures the mechatronics unit to the transmission case. Proper torque is critical to avoid damage. Estimated based on similar Audi models.
2

Valve Body Bolts

M5 x 0.8
Torque Value
5 ft-lbs (7 N·m)
Important Notes
Secures the valve body to the mechatronics unit. Smaller and sensitive bolts. Estimated based on similar Audi models and industry standards.

Dual Clutch

Torque specifications for bolts related to the dual clutch assembly, requiring precise torque and angle tightening.

1

Dual Clutch Assembly Mounting Bolts

M10 x 1.5
Important Notes
Secures the dual-clutch assembly to the transmission input shaft. Torque-to-yield bolts. SAFETY CRITICAL. Estimated based on similar Audi models, but in line with typical torque to yield for similar designs.

Oil System

Torque specifications for components related to the transmission oil system, including the oil pan, drain plug, and fill plug.

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Value
11 ft-lbs (15 N·m)
Important Notes
Secures the transmission oil pan to the transmission housing. Star pattern is required to prevent warping. Estimated based on similar Audi models and industry standards.
2

Transmission Oil Drain Plug

M18 x 1.5
Torque Value
22 ft-lbs (30 N·m)
Important Notes
Prevents oil leakage from the transmission housing. Replace the crush washer. Estimated based on similar Audi models and industry standards.
3

Transmission Oil Fill Plug

M18 x 1.5
Torque Value
22 ft-lbs (30 N·m)
Important Notes
Seals the fill port to prevent leaks. Check and replace the O-ring if damaged. Estimated based on similar Audi models and industry standards.

Sensors

Torque specifications for bolts related to the transmission speed sensors.

1

Input Shaft Speed Sensor Bolt

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Secures the speed sensor to the transmission case. Estimated based on similar Audi models.
2

Output Shaft Speed Sensor Bolt

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Secures the output shaft speed sensor. Estimated based on similar Audi models.

Differential

Torque specifications for differential mounting bolts within the transmission housing.

1

Differential Mounting Bolts

M10 x 1.5
Torque Value
44 ft-lbs (60 N·m)
Important Notes
Secures the differential housing within the transmission. Estimated based on similar Audi models and industry standards.

Gear Selector

Torque specifications for bolts related to the gear selector mechanism.

1

Gear Selector Mechanism Mounting Bolts

M8 x 1.25
Torque Value
18 ft-lbs (25 N·m)
Important Notes
Secures the shift selector mechanism to the transmission case. Estimated based on the application and similar parts.

Bellhousing

Torque specifications for bolts securing the transmission bellhousing to the engine block. SAFETY CRITICAL.

1

Bell Housing Bolts

M12 x 1.75
Torque Value
40 ft-lbs (55 N·m)
Important Notes
Secures the transmission to the engine block. Specific tightening sequence necessary. SAFETY CRITICAL. Estimated based on similar Audi models and typical bellhousing bolts.

Mounting Brackets

Torque specifications for bolts securing the transmission mounting brackets to the transmission case.

1

Mounting Brackets to Transmission Case Bolts

M10 x 1.5
Torque Value
33 ft-lbs (45 N·m)
Important Notes
Secures the transmission mounting brackets. Estimated based on similar Audi models and typical mounting bracket bolting.

Cooler Lines

Torque specifications for bolts securing the transmission cooler lines.

1

Transmission Cooler Line Bolts

M10 x 1.0 (Banjo Bolt)
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Secures the transmission cooler lines. Often banjo bolts with crush washers. Estimated based on industry standard for banjo bolt design.

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 is using the correct torque specification so critical for the DQ500 transmission?

Using the correct torque specification is crucial to ensure proper clamping force and prevent component failure. Overtightening bolts can cause them to stretch or break, potentially damaging the transmission housing, internal components like gears, or even causing leaks. Under-tightening can lead to loosening of bolts due to vibration and thermal expansion, resulting in improper sealing, leaks, and potential catastrophic failure. For example, if the mechatronic unit bolts are not torqued correctly, it can lead to malfunctions and erratic shifting.

Q2

Are all the bolts on the DQ500 transmission the same torque specification?

No, different bolts on the DQ500 transmission have varying torque specifications depending on their size, material, location, and purpose. For example, the bolts securing the transmission housing to the engine block will require a different torque setting than the bolts holding the mechatronic unit or the transmission pan. Always refer to the specific torque specifications provided in the manufacturer's service manual or an equivalent credible resource.

Q3

Do I need to use new bolts when servicing the DQ500 transmission?

In many cases, yes. Some bolts, especially those used for critical sealing areas or those subject to high stress, are designed to stretch upon initial tightening. These bolts are often 'torque-to-yield' (TTY) bolts and must be replaced each time they are removed. Failure to do so can result in improper clamping force and potential leaks. Bolts holding the transmission pan or the mechatronic unit are frequently of this type and should be replaced with new ones each time those components are serviced. Always consult the service manual to determine if a bolt is designed for single use.

Q4

What tools are needed to properly torque bolts on the DQ500 transmission?

A calibrated torque wrench is essential for properly torquing bolts. The torque wrench must be accurate within the specified tolerances for the service manual. Furthermore, ensure you have the appropriate socket sizes for the bolts you are tightening. Using a generic torque wrench or improper sockets can lead to inaccurate readings and compromised tightening. Some bolts may be in awkward positions, so extension bars, swivels, and a set of deep sockets are needed to make accessibility easier. It is advisable to confirm torque values are within the calibration parameters of your tool before beginning the process.

Q5

Can I use Loctite or other thread locker on the transmission bolts?

Unless specifically indicated by the manufacturer, using thread lockers on transmission bolts is generally not recommended. Most transmission components are designed to function within specific thermal and pressure ranges, and the use of thread lockers can change these parameters. Additionally, some thread lockers can react negatively with transmission fluids or the metals the transmission is composed of. If the service manual specifies, a special sealant or thread locker will be explicitly called out along with the specific torque and application method.

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 accurately tightening bolts to the specified torque values. 1/2" drive is recommended for most DQ500 fasteners.

  • Accurate torque measurement
  • Audible click when desired torque is reached
Learn more

Torque Wrench (3/8" Drive)

A smaller 3/8" drive torque wrench may be needed for some smaller or hard-to-reach bolts on the DQ500.

  • Accurate torque measurement
  • Suitable for lower torque ranges
Learn more

Various Sockets (Metric)

A comprehensive set of metric sockets is required to fit the different bolt heads on the DQ500 transmission.

  • Wide range of sizes
  • 6-point or 12-point design for secure grip
Learn more

Extension Bars (Various Lengths)

Extension bars will be necessary to reach some of the more recessed bolts.

  • Various lengths for reaching difficult fasteners
  • Provides added leverage
Learn more

Universal Joint

A universal joint can be essential to access bolts at angles

  • Allows sockets to work at angles
  • Provides added maneuverability
Learn more
Service Procedures

Mechatronic Unit Bolt Torque Procedure

This procedure details how to correctly torque the bolts that secure the mechatronic unit to the DQ500 transmission housing.

  • 1. Clean all bolt threads and mating surfaces.
  • 2. Install the mechatronic unit, ensuring proper alignment.
  • 3. Install all bolts by hand and tighten lightly.
  • 4. Torque bolts to the specified torque in a crisscross pattern. (Refer to specific torque spec for the DQ500 found in ElsaWin)
  • 5. Double-check all torque settings.
View full procedure

Transmission Housing Bolt Torque Procedure

This procedure outlines the correct way to torque the transmission housing bolts for the DQ500 transmission.

  • 1. Clean all bolt threads and mating surfaces of the housing halves.
  • 2. Install bolts by hand into the housing.
  • 3. Tighten bolts in a specified pattern to 15 Nm.
  • 4. Using the same pattern, tighten all bolts to the final torque value of 45 Nm + 90 Degrees. (Refer to specific torque spec for the DQ500 found in ElsaWin)
  • 5. Double check the torque on all bolts.
View full procedure

Transmission Oil Pan Bolt Torque Procedure

This outlines how to correctly torque the bolts on the DQ500 transmission oil pan.

  • 1. Clean all bolt threads and mating surfaces.
  • 2. Install the oil pan with a new gasket or sealant.
  • 3. Install all bolts by hand.
  • 4. Tighten all bolts to the specified torque of 10 Nm. (Refer to specific torque spec for the DQ500 found in ElsaWin)
  • 5. Double check torque on all bolts.
View full procedure
Technical Service Bulletins

DQ500 Mechatronic Unit Bolt Loosening Issue

2020-05-15

Some reports have indicated the potential for mechatronic unit bolts to loosen over time, causing transmission faults. Improper torque application is often the cause.

2017-2020 Audi RS5

Resolution: Verify proper torque of all mechatronic unit bolts to the required specification. Apply new bolts with the latest revision if necessary. Refer to ElsaWin for torque specification.

DQ500 Transmission Housing Leakage Concerns

2021-11-20

Some DQ500 transmissions are experiencing leaks due to improper housing bolt torque during assembly or service.

2017-2021 Audi RS5

Resolution: Always follow the prescribed torque sequence and values when servicing the transmission housing. Check for any potential cracks in the housing, and replace if necessary. Refer to ElsaWin for the torque specification.

DQ500 Oil Pan Bolt Loosening Issues

2022-08-01

Reports indicate some oil pan bolt loosening causing oil leaks on DQ500 transmission. This is sometimes a result of reusing bolts.

2017-2022 Audi RS5

Resolution: Always use new bolts when servicing the transmission oil pan and tighten to the required torque specification. Ensure the gasket is properly installed. Refer to ElsaWin for torque specification

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