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  1. M5 is howling a bit at speed

    M5 E39 and E60 tips & tricks
    I've been researching this issue like crazy for the past two weeks and I can't put my finger on it. I've got this weird groaning/howling noise that comes up on the M5 around 40mph and up and it seems to sound the loudest around 55mph. I replaced the differential and transmission fluid yesterday...
  2. Help me diagnose this whine

    E39 M5 and E52 Z8 Discussion
    I've been trying to track down this super-charger like whine for a while now. I don't know if it's been getting louder, or I am just more paranoid about odd noises from my beast. ?????? I was hoping it was the alternator, as the voltage does fluctuate some with RPM, and sometimes at idle the...
  3. New Member - Two Problems

    E39 M5 and E52 Z8 Discussion
    Hello, about two months ago I bought my first ///M car and second BMW and E39. I have been lurking on this board way before I got my M5 just to learn about them. But now I have two problems, an annoying whine and squeaky brakes. The whine: It is audible at anything above about 30mph with no...
  4. e39 M5 2001 Engine/Transmission whine (

    E39 M5 and E52 Z8 Discussion
    My beast has developed a whine under half to full throttle. Does anyone have any ideas what it could be? Maybe it's sprouted a supercharger over night?! I don't think it's an issue with the engine, there is no whine when it's revved out of gear. Excuse the rubbish recording... YouTube - E39 M5...