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1993 BMW 740 thumping noise

Tiny
PKEYZ
  • MEMBER
  • 1993 BMW 740
  • V8
  • 2WD
  • AUTOMATIC
  • 147,000 MILES
When I hit a bump/pothole in the road, I hear this loud thumping noise comming from the rear of my 1993 740il BMW. The accumulators have been replaced last year, any ideas what this could be.
Thursday, February 5th, 2009 AT 11:08 PM

2 Replies

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Noises are difficult to diagnose from cyberspace, have a safety inspection performed at your earliest convenience by your friendly local BMW mechanic.
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Friday, February 6th, 2009 AT 12:46 AM
Tiny
DR LOOT
  • MECHANIC
  • 2,311 POSTS
You are not being specific enough, but I think I know what you're talking about the noises right behind the driver's seat, it sounds like the transmission mounts are no good, the noise you are listening to is the drive line doughnut hitting across member when you hit a bump, have your mechanic check the transmission mounts.
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Monday, February 9th, 2009 AT 7:00 PM

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