Thudding Noise and Feeling When Quickly Releasing Throttle
Car:
2003 BMW M3 6MT
107,000 miles
Recently I noticed that when I'm driving and quickly let off the throttle, the car will make a loud thud toward the rear of the underbody. This also happens from a stand-still when I put it into reverse and let off the clutch. The thud has gotten progressively more noticeable. It doesn't happen when I ease off of the throttle, though.
The subframe has been reinforced (welded plates 50,000 miles ago), and at that time all subframe bushings were replaced as well as upgraded differential bolts.
I'm wondering if these are common symptoms of a worn guibo (Drive Shaft Flex Disc), as it's still on the factory guibo which according to the maintenance thread should be replaced around 100,000 miles. Before I drop the car off at my mechanic's shop, I was curious if anyone else had any ideas.
I figure I'd replace the following:
2003 BMW M3 6MT
107,000 miles
Recently I noticed that when I'm driving and quickly let off the throttle, the car will make a loud thud toward the rear of the underbody. This also happens from a stand-still when I put it into reverse and let off the clutch. The thud has gotten progressively more noticeable. It doesn't happen when I ease off of the throttle, though.
The subframe has been reinforced (welded plates 50,000 miles ago), and at that time all subframe bushings were replaced as well as upgraded differential bolts.
I'm wondering if these are common symptoms of a worn guibo (Drive Shaft Flex Disc), as it's still on the factory guibo which according to the maintenance thread should be replaced around 100,000 miles. Before I drop the car off at my mechanic's shop, I was curious if anyone else had any ideas.
I figure I'd replace the following:
- https://www.fcpeuro.com/products/bmw...-26112226527kt
- Drive Shaft Flex Joint
- Drive Shaft End Pushing
- 6x Drive Shaft Flex Joint Bolts and Nuts (can you just reuse these?)
- https://www.fcpeuro.com/products/bmw...ng-26121225071
- Drive Shaft Support Bearing
- https://www.fcpeuro.com/products/bmw...46-26122282495
- Drive Shaft Support
- https://www.fcpeuro.com/products/bmw...pe-26127511140
- Butyle Tape for the Drive Shaft Support (to minimize vibration)
- https://www.fcpeuro.com/products/bmw...rh-26117514120
- Intermediate Ring
- https://www.fcpeuro.com/products/bmw...s3-26117574872
- 2x Drive Shaft Center Support Nut (again, can you just reuse these?)
- https://www.fcpeuro.com/products/bmw...et-26111229503
- CV Joint Gasket
- https://www.fcpeuro.com/products/bmw...0g-83190447919
- Clean and re-lubricate the CV Joint
- https://www.fcpeuro.com/products/bmw...-22322282340oe
- 2x Transmission Mounts (current ones have about 40,000 miles on them
- https://www.fcpeuro.com/products/bmw...ng-11627830668
- 2x Exhaust Seal Rings
- https://www.fcpeuro.com/products/bmw...mm-26117542264
- Drive Shaft CV Joint Boot Muffler Clamp
- Another user on a separate thread from the past suggested replacing this as well, is that true? If so, how many do I need, 2?
- Drive Shaft CV Joint Boot Muffler Clamp
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