BMW M5 2011-2017 Getrag Transmission Torque Specifications
Detailed torque specifications for bolts used in the Getrag transmission of the 2011-2017 BMW M5 (F10) model. Includes transmission housing, bellhousing, and other critical 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
Specifications for bolts securing the transmission to the vehicle chassis or engine block.
1 Transmission Mounting Bolts
M12 x 1.75
Transmission Mounting Bolts
M12 x 1.75Torque Value
Important Notes
Transmission Case
Specifications for bolts related to the transmission case and oil pan.
1 Transmission Oil Pan Bolts
M8 x 1.25
Transmission Oil Pan Bolts
M8 x 1.25Torque Value
Important Notes
2 Transmission Drain and Fill Plugs
M22 x 1.5
Transmission Drain and Fill Plugs
M22 x 1.5Torque Value
Important Notes
Bellhousing
Specifications for the bolts attaching the transmission bellhousing to the engine block.
1 Transmission Bellhousing Bolts
M12 x 1.75
Transmission Bellhousing Bolts
M12 x 1.75Torque Value
Important Notes
Output Flange
Specifications for bolts securing the output flanges to the transmission.
1 Transmission Output Flange Bolts
M10 x 1.5
Transmission Output Flange Bolts
M10 x 1.5Torque Value
Important Notes
Driveline Connection
Specifications for bolts connecting the transmission to the driveline.
1 Drive Axle/Half Shaft Bolts
M12 x 1.5
Drive Axle/Half Shaft Bolts
M12 x 1.5Torque Value
Important Notes
2 Propeller/Drive Shaft Bolts
M10 x 1.5
Propeller/Drive Shaft Bolts
M10 x 1.5Torque Value
Important Notes
Internal Components
Specifications for bolts securing internal transmission components. These are estimated values and will need specific service manual confirmation.
1 Gear Carrier Bolts
M8 x 1.25
Gear Carrier Bolts
M8 x 1.25Torque Value
Important Notes
2 Shift Fork and Rail Bolts
M6 x 1.0
Shift Fork and Rail Bolts
M6 x 1.0Torque Value
Important Notes
Shift Linkage
Specifications for bolts and nuts connecting the shift linkage to the transmission housing.
1 Shift Linkage Bolts/Nuts
M8 x 1.25
Shift Linkage Bolts/Nuts
M8 x 1.25Torque 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 proper torque important when working on the Getrag transmission?
Why is proper torque important when working on the Getrag transmission?
Proper torque ensures bolts are tightened enough to maintain secure connections and prevent components from shifting or loosening under load. Insufficient torque can lead to leaks, vibrations, and component failure, while over-tightening can damage threads or fracture parts. For example, incorrect bellhousing bolt torque can cause misalignment issues and damage the clutch.
Q2 What happens if I over-torque the transmission bolts?
What happens if I over-torque the transmission bolts?
Over-torquing bolts can stretch or break them, damage threads in the transmission case, or crush gasket surfaces. This can result in stripped threads, leaks, and expensive repairs. For instance, over-torquing the pan bolts might distort the pan and create an oil leak that is difficult to rectify.
Q3 Can I reuse transmission bolts on the Getrag transmission?
Can I reuse transmission bolts on the Getrag transmission?
It's generally not recommended to reuse torque-to-yield (TTY) bolts, as they stretch when tightened to a specific torque and angle. These should always be replaced. Other bolts, if in good condition, can sometimes be reused, but it's good practice to replace them especially if they are critical or difficult to access. For example, flywheel bolts are generally always replaced. Always consult the official BMW repair manual for specific recommendations.
Q4 Do I need any special tools for torquing Getrag transmission bolts?
Do I need any special tools for torquing Getrag transmission bolts?
Yes, a calibrated torque wrench is essential for accurately tightening bolts to the specified values. Depending on the bolt location, extensions and universal joints may also be required. A torque angle gauge is essential for bolts requiring torque and angle. For example, the bellhousing bolts might require an extension due to limited access.
Q5 Where can I find the exact torque specifications for the Getrag transmission on my 2011-2017 BMW M5?
Where can I find the exact torque specifications for the Getrag transmission on my 2011-2017 BMW M5?
The most reliable source for torque specifications is the official BMW repair manual for your specific model year and engine configuration. These can sometimes be found via online databases, but it is recommended to cross-reference with the official manual. Be sure to verify the year range, as there may be slight variation from year to year.
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 (1/2" Drive)
A calibrated torque wrench is essential for applying accurate torque to bolts during reassembly of the Getrag transmission.
- 1/2 inch drive
- Wide torque range (covering specifications)
Torque Wrench (3/8" Drive)
A smaller torque wrench for bolts with lower torque specifications.
- 3/8 inch drive
- Lower torque range
Socket Set (Metric)
A comprehensive set of metric sockets is necessary for accessing and torquing bolts of various sizes on the transmission.
- Various metric socket sizes
- 1/2" and 3/8" drive compatibility
Socket Extensions
Extensions of varying lengths allow access to recessed or hard-to-reach bolts on the Getrag transmission.
- Various lengths available
- 1/2" and 3/8" drive compatibility
Universal Joint Adapters
Universal joints facilitate access to bolts at an angle, improving flexibility during transmission work.
- Allows for angular torquing
- 1/2" and 3/8" drive compatibility
Service Procedures
Getrag Transmission Bell Housing Bolt Torque Procedure
This procedure details the steps for correctly torquing the bell housing bolts on a Getrag transmission from a 2011-2017 BMW M5.
- Clean the threads of the bolts and the corresponding holes in the bell housing.
- Apply a light coating of engine oil to the bolt threads.
- Install all bell housing bolts by hand, tightening them only slightly.
- Using a 1/2" torque wrench, torque the bolts to 37 ft-lbs in a star pattern.
- Recheck the torque on each bolt to ensure they are all at 37 ft-lbs.
Getrag Transmission Oil Pan Bolt Torque Procedure
This procedure details the steps for correctly torquing the oil pan bolts on a Getrag transmission from a 2011-2017 BMW M5.
- Clean the threads of the bolts and the corresponding holes in the transmission pan.
- Install all oil pan bolts by hand, tightening them only slightly.
- Using a 3/8" torque wrench, torque the bolts to 8.5 ft-lbs in a cross pattern.
- Recheck the torque on each bolt to ensure they are all at 8.5 ft-lbs.
Getrag Transmission Output Flange Bolt Torque Procedure
This procedure details the steps for correctly torquing the output flange bolts on a Getrag transmission from a 2011-2017 BMW M5.
- Clean the threads of the bolts and the corresponding holes on the output flange.
- Install all output flange bolts by hand, tightening them only slightly.
- Using a 3/8" torque wrench, torque the bolts to 18 ft-lbs in a star pattern.
- Recheck the torque on each bolt to ensure they are all at 18 ft-lbs.
Getrag Transmission Mechatronic Unit Bolt Torque Procedure
This procedure details the steps for correctly torquing the Mechatronic unit bolts on a Getrag transmission from a 2011-2017 BMW M5.
- Clean the threads of the bolts and the corresponding holes in the transmission housing.
- Install all mechatronic unit bolts by hand, tightening them only slightly.
- Using a 3/8" torque wrench, torque the bolts to 8.5 ft-lbs in a star pattern.
- Recheck the torque on each bolt to ensure they are all at 8.5 ft-lbs.
Technical Service Bulletins
Potential for Loosening of Bell Housing Bolts
2018-03-15Some cases have been reported where bell housing bolts may loosen over time. It is crucial to follow the correct tightening procedure and torque specifications.
Resolution: Inspect bell housing bolts for proper torque during scheduled maintenance. If bolts are found to be loose, they should be removed, cleaned, and reinstalled using the correct procedure and torque.
Oil Pan Leakage Due to Incorrect Torque
2019-09-22Oil pan leaks have been observed due to insufficient or uneven torque application to the oil pan bolts. Ensuring proper torque procedure is vital to prevent leaks.
Resolution: When replacing the transmission oil pan, clean all mating surfaces, apply a new gasket, and ensure even torque application to all bolts, following the specified torque pattern.
Mechatronic Unit Mounting Bolt Issues
2020-07-10Improperly torqued mechatronic unit bolts can cause operational issues. Follow specified torque procedures when working on the Mechatronic unit.
Resolution: When servicing the mechatronic unit, always use a calibrated torque wrench and adhere to specified torque values. Verify proper torque application.
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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.