BMW M3 2007-2013 Getrag Transmission Torque Specifications
Detailed torque specifications for all bolts on the Getrag manual transmission found in the 2007-2013 BMW M3 (E90, E92, and E93 chassis). Includes bellhousing, case, and other external bolt torque values.
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
Transmission Mounting
Bolts and fasteners securing the transmission housing to the vehicle's chassis or subframe.
1 Transmission Mounting Bolts
M12 x 1.5
Transmission Mounting Bolts
M12 x 1.5Torque Value
Important Notes
Transmission Case
Bolts securing the transmission oil pan, drain and fill plugs, and other components to the main transmission case.
1 Transmission Oil Pan Bolts
M6 x 1.0
Transmission Oil Pan Bolts
M6 x 1.0Torque Value
Important Notes
2 Transmission Drain and Fill Plugs
M18 x 1.5
Transmission Drain and Fill Plugs
M18 x 1.5Torque Value
Important Notes
Bellhousing
Bolts connecting the transmission bellhousing to the engine block, and securing components like the clutch slave cylinder.
1 Bellhousing Bolts to Engine (M10)
M10 x 1.5
Bellhousing Bolts to Engine (M10)
M10 x 1.5Torque Value
Important Notes
2 Bellhousing Bolts to Engine (M12)
M12 x 1.75
Bellhousing Bolts to Engine (M12)
M12 x 1.75Torque Value
Important Notes
3 Clutch Slave Cylinder Bolts
M8 x 1.25
Clutch Slave Cylinder Bolts
M8 x 1.25Torque Value
Important Notes
Shift Linkage
Bolts and fasteners that connect and secure the shift linkage components.
1 Shift Linkage Bolts
M8 x 1.25
Shift Linkage Bolts
M8 x 1.25Torque Value
Important Notes
Output Shaft System
Bolts and fasteners that secure the output shaft flanges and other components.
1 Drive Axle/Half Shaft Bolts
M10 x 1.5
Drive Axle/Half Shaft Bolts
M10 x 1.5Torque Value
Important Notes
2 Transmission Input/Output Shaft Flange Bolt/Nut
M12 x 1.5
Transmission Input/Output Shaft Flange Bolt/Nut
M12 x 1.5Torque Value
Important Notes
Electrical Components
Fasteners for electrical components attached to the transmission, like the reverse light switch.
1 Reverse Light Switch
M10 x 1.0
Reverse Light Switch
M10 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 are correct torque specifications important for the Getrag transmission?
Why are correct torque specifications important for the Getrag transmission?
Correct torque is crucial for the Getrag transmission to ensure proper clamping force on components, preventing leaks, loosening, and potential damage. Under-torqued bolts can lead to vibrations, fluid leaks, and premature wear, while over-torquing can strip threads or cause component fractures. For instance, incorrectly torqued bellhousing bolts can misalign the transmission to the engine, causing clutch issues and premature wear.
Q2 What happens if I don't use a torque wrench?
What happens if I don't use a torque wrench?
Failing to use a torque wrench increases the risk of over- or under-tightening bolts, both of which are problematic. Relying on 'feel' can be inaccurate, particularly with aluminum components on the Getrag transmission, which are more sensitive to incorrect torque. This could lead to a stripped thread or cracked housing.
Q3 Do the torque specs change if I replace a bolt?
Do the torque specs change if I replace a bolt?
Generally, torque specs remain the same for standard replacements with equivalent fasteners. However, if using a different type of bolt material or thread pitch, consulting the manufacturer's specifications or an experienced mechanic is essential. Also, consider if the replacement is new or used, new hardware will adhere to factory specifications.
Q4 How often should I check the torque on my Getrag transmission bolts?
How often should I check the torque on my Getrag transmission bolts?
Unless explicitly specified in a service schedule, there is usually no need to routinely check transmission bolt torque, unless there is evidence of leaks or loosening. It's crucial to re-torque fasteners after any component repair or replacement on the Getrag transmission. For peace of mind, checking after a few drives post-service is a good practice to check for loosening. A great example is the first 100-500 miles after replacing the transmission.
Q5 Are there any specific torque sequences I should follow on the Getrag transmission?
Are there any specific torque sequences I should follow on the Getrag transmission?
Yes, proper torque sequences are critical for evenly distributing clamping force, preventing distortion, and ensuring proper sealing. The bellhousing bolts, for example, should be tightened in a crisscross pattern in multiple stages. Consult the repair manual specific to the E90/E92/E93 M3 and the Getrag S6-400 transmission for the proper sequence as some bolts are torque-to-yield and must be replaced at every service.
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 with a range suitable for the specified bolt torque values for the Getrag transmission.
- 1/2 inch drive
- Range of 10-150 Nm (approximate)
Torx Socket Set
A complete set of Torx sockets in various sizes, essential for securing and tightening the bolts on the Getrag transmission.
- Includes E10, E12, E14, E16, and E18 sockets
- Made from hardened steel
Socket Extensions
Various length socket extensions to reach recessed bolt locations within the transmission assembly.
- 1/2 inch drive
- Various lengths available (3, 6, 10 inches)
Universal Joint Adapter
A universal joint adapter for accessing bolts at awkward angles.
- 1/2 inch drive
Service Procedures
Transmission Case Bolt Tightening Procedure
This procedure outlines the correct method for tightening the transmission case bolts to the specified torque.
- Identify all transmission case bolts.
- Clean all bolt threads.
- Refer to the torque specification diagram for specific torque values.
- Apply the specified torque to each bolt in a cross pattern to ensure even pressure.
- Double check each bolt for correct torque.
Transmission Oil Pan Bolt Tightening Procedure
This procedure details the steps to properly tighten the transmission oil pan bolts.
- Identify all transmission oil pan bolts.
- Ensure the pan is correctly positioned and sealed.
- Refer to the torque specification diagram for specific torque values.
- Apply the specified torque to each bolt in a cross pattern or sequence to ensure even pressure and proper sealing.
- Double check each bolt for correct torque.
Transmission Mount Bolt Tightening Procedure
This procedure covers the correct method for tightening the bolts that secure the transmission to the vehicle.
- Identify all transmission mount bolts.
- Ensure the transmission is correctly positioned on the mount.
- Refer to the torque specification diagram for specific torque values.
- Apply the specified torque to each bolt in the correct sequence to ensure even pressure.
- Double check each bolt for correct torque.
Technical Service Bulletins
Getrag Transmission Case Bolt Corrosion Issues
2010-03-15Certain Getrag transmissions may experience corrosion on the case bolts, potentially impacting torque accuracy and bolt integrity.
Resolution: Inspect transmission case bolts for corrosion during service. Replace corroded bolts and apply anti-seize compound during installation.
Update to Transmission Mount Bolt Torque Specifications
2012-06-20An update to the specified torque values for transmission mount bolts due to some failures of the original specs.
Resolution: Use revised torque specification found in the latest service documentation, always consult the most up to date documentation.
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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.