My 2002 E39 M5 is about to cross the 250,000 mile threshold! I've been rebuilding the car for years and it runs beautifully. However, it has developed quite a loud whirring noise from the rear. I put the car up and explored with my stethoscope and visual inspection. It seems that the...

Hi, So about 2 weeks ago I did a major service on my E39 M5, Clutch, RMS, and everything else associated with that job and Also the axle seals on the Dif since they were leaking and the exhaust was down. Everything seemed to go well, I drove the car for around 200 miles with no problems until...

Hi there, can anyone help. I've had my diff refurb'ed, but the seal still leaks. The detail on the original seal that came out is 12139493, MEWLD 50x80x9. BMW told me the part is no longer available. Indeed there had been a modified part, that provided a better seal, but this was stopped long...

Hi, I recently had my car in the dealer garage to diagnose a tranmission malfunction warning. On heavy acceleration the car seems to buck/jolt with a noticable delay in power and the transmission malfunction warning pops up. The garage dianosed a "fault with transmission to DME signalling...