Audi Audi A3 2013-2020 DQ200 Transmission Transmission Torque Specifications & Bolt Torque Values
Audi Audi A3 2013-2020

Audi Audi A3 2013-2020 DQ200 Transmission Torque Specifications

Detailed torque specifications for all bolts used in the DQ200 7-speed dual-clutch transmission found in the 2013-2020 Audi A3 8V generation.

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

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Dq200-transmission Mounting

Torque specifications for mounting the DQ200 transmission to the vehicle.

1

Transmission Mounting Bolts

M12 x 1.75 (Estimated)
Torque Value
33 ft-lbs (45 N·m)
Important Notes
These bolts secure the transmission housing to the engine block and/or subframe. Estimated bolt size. Always use a calibrated torque wrench.
2

Transmission Bellhousing Bolts

M12 x 1.75 (Estimated)
Torque Value
33 ft-lbs (45 N·m)
Important Notes
These bolts secure the bellhousing to the transmission case. Estimated bolt size. These may sometimes be the same bolts listed as the Transmission Mounting Bolts. Always use a calibrated torque wrench.

Dq200-transmission External Covers

Torque specifications for external covers and components of the DQ200 transmission.

1

Transmission Oil Pan Bolts

M6 x 1.0 (Estimated)
Torque Value
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the transmission oil pan to the transmission case. Estimated bolt size. Use a cross-pattern tightening sequence. Always use a calibrated torque wrench.
2

Differential Cover Bolts

M6 x 1.0 (Estimated)
Torque Value
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the differential cover to the transmission housing. Estimated bolt size. Use a cross-pattern tightening sequence. Always use a calibrated torque wrench.
3

Output Flange Bolts

M6 x 1.0 (Estimated)
Torque Value
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the output flanges to the transmission housing. Estimated bolt size. Always use a calibrated torque wrench.

Dq200-transmission Internal Components

Torque specifications for internal components of the DQ200 transmission.

1

Mechatronic Unit Mounting Bolts

M6 x 1.0 (Estimated)
Torque Value
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the mechatronic unit to the transmission housing. Estimated bolt size. Always use a calibrated torque wrench.
2

Clutch Actuator Mounting Bolts

M6 x 1.0 (Estimated)
Torque Value
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the clutch actuators to the transmission housing. Estimated bolt size. Always use a calibrated torque wrench.
3

Shift Fork Actuator Mounting Bolts

M6 x 1.0 (Estimated)
Torque Value
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the shift fork actuators to the transmission housing. Estimated bolt size. Always use a calibrated torque wrench.

Dq200-transmission Draining Filling

Torque specifications for drain and fill plugs on the DQ200 transmission.

1

Transmission Drain/Fill Plugs

M14 x 1.5 (Estimated)
Torque Value
22 ft-lbs (30 N·m)
Important Notes
These plugs are for draining and filling the transmission fluid. Estimated bolt size. Always use a calibrated torque wrench and a new seal.

Dq200-transmission Drive Axle

Torque specifications for mounting drive axles/half shafts to the DQ200 transmission output flanges.

1

Drive Axle/Half Shaft Bolts

M10 x 1.25 (Estimated)
Torque Value
74 ft-lbs (100 N·m)
Important Notes
These bolts secure the drive axles to the transmission output flanges. Some DQ200 applications may use a different fastening method. Estimated bolt size. Always use a calibrated torque wrench.

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 it crucial to use the correct torque specifications for the DQ200 transmission bolts?

Using incorrect torque can lead to several issues. Under-torquing can cause bolts to loosen over time, leading to leaks, vibrations, and even component failure. Over-torquing can stretch or break bolts, damage threads in the transmission housing, or deform mating surfaces, potentially requiring costly repairs. Precise torque ensures proper clamping force and prevents these problems.

Q2

Can I reuse the bolts after removing them from the DQ200 transmission?

Generally, it's recommended to replace bolts that have been torqued, especially those subjected to high clamping forces like transmission bolts. These bolts may stretch during use. While some bolts can be reused in low-stress applications, using new bolts ensures the original clamping force is maintained, and reduces the risk of failure. It's a good practice to consult the manufacturer's service manual, but generally, bolts around the transmission bell housing and mounting should be replaced.

Q3

What tools do I need to properly torque the DQ200 transmission bolts?

You will need a calibrated torque wrench that covers the required torque range for the specific bolts you are working with. It is highly recommended to use a quality torque wrench. Ensure the torque wrench has been calibrated recently to ensure it gives correct readings. You may also require various sockets, extensions, and universal joints to reach all the bolts. Refer to the service manual for specific tool sizes.

Q4

How often should I check the torque on my DQ200 transmission bolts?

Unless there is a specific reason to suspect that they have loosened, periodic checking of these bolts is generally not required. The manufacturer does not schedule this as routine maintenance. However, after disassembling components during repairs, or if you notice unusual vibrations or sounds, re-checking these bolts is a good precaution, especially if the vehicle has been in an accident or driven aggressively.

Q5

Are there different torque specifications for different bolts on the DQ200 transmission?

Yes, absolutely. The DQ200 transmission has multiple bolt sizes and applications. Different bolts, such as bell housing bolts, mounting bolts, and pan bolts, will each have specific torque requirements. Always refer to the service manual for your specific A3 model and year, since some models may have slightly different specifications. Do not assume that one bolt specification applies to all on the DQ200 transmission.

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

A calibrated torque wrench is essential for accurately tightening bolts to the specified torque. Both 3/8" and 1/2" drive wrenches may be required depending on the specific bolt.

  • Wide torque range
  • Audible click or digital readout
  • Accurate calibration
Learn more

Socket Set

A comprehensive socket set with various sizes (including Torx and triple square bits) is needed for different transmission bolts.

  • Various socket sizes
  • Torx and triple square bits
  • Impact rated sockets may be beneficial
Learn more

Extension Bars

Extension bars of various lengths are helpful to reach recessed bolts in the transmission housing.

  • Various lengths available
  • Allows access to hard-to-reach bolts
Learn more

Universal Joint

A universal joint may be required to access bolts at odd angles.

  • Allows torque application at an angle
  • Durable construction
Learn more
Service Procedures

Mechatronics Unit Bolt Torque Procedure

This procedure details the correct torque sequence and values for the bolts securing the mechatronics unit to the transmission.

  • 1. Identify all mechatronics unit mounting bolts.
  • 2. Apply a light coating of clean transmission fluid to the bolt threads.
  • 3. Tighten all bolts finger tight in a star pattern.
  • 4. Using a torque wrench, tighten all bolts to 8 Nm in the same star pattern.
  • 5. Tighten all bolts to 12 Nm in the same star pattern.
  • 6. As final tighten all bolts to 12 Nm + 90° ± 5° in the same star pattern.
View full procedure

Transmission Housing Bolt Torque Procedure

This procedure details the correct torque procedure for the bolts securing the transmission case halves. Follow the sequence to avoid damage and ensure a tight seal

  • 1. Identify all housing bolts and ensure the mating surfaces are clean.
  • 2. Apply a light coating of clean transmission fluid to the bolt threads.
  • 3. Tighten all bolts finger tight.
  • 4. Using a torque wrench, tighten all bolts to 15 Nm in the correct sequence according to the workshop manual.
  • 5. Tighten all bolts to 30 Nm in the same sequence.
  • 6. As final tighten all bolts to 30 Nm + 90° ± 5° in the same sequence.
View full procedure

Gearbox Mount Bolt Torque Procedure

This procedure details the correct torque for the gearbox mount bolts.

  • 1. Identify all gearbox mount bolts.
  • 2. Apply a light coating of clean transmission fluid to the bolt threads.
  • 3. Tighten all bolts finger tight.
  • 4. Using a torque wrench, tighten all bolts to 40 Nm + 90° in the correct sequence according to the workshop manual.
  • 5. Check all bolts are tightened correctly.
View full procedure
Technical Service Bulletins

DQ200 Mechatronics Unit Bolt Loosening

2017-05-15

Some vehicles have experienced mechatronics unit bolt loosening due to improper initial torquing or degradation of the bolts. This can cause transmission performance issues.

2013-2017 Audi A3 with DQ200 transmission

Resolution: Inspect all mechatronics unit bolts for correct torque. Replace bolts and use new torque-to-yield method described in the service procedure and ensure threadlock is used.

Transmission Case Bolt Torque Procedure Update

2019-11-20

This bulletin clarifies and updates the torque specification and tightening sequence for the transmission case bolts. Improper tightening can lead to fluid leaks and premature wear.

2013-2020 Audi A3 with DQ200 transmission

Resolution: Follow the updated torque and tightening sequence described in the service procedure section. Always use a calibrated torque wrench.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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