BMW 2003 330 Xi Popping/thumping

2003 BMW 330
50,000 MILES • 6 CYL • AWD • MANUAL
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DRJON1
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BMW 330Xi 2003. LOUD thumping/popping intermittently from back deck beyond rear seats near speakers even when sound system is OFF. Nothing visible from trunk
Jan 28, 2011 at 4:27 PM
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DOCHAGERTY
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Noise from the area you refer to could be 1) The center support bearing rubber isolation has degraded and the driveshaft should be inspected for same and repaired/replaced straightaway. 2) A subframe/differential rubber isolation mount failure. 3) Bad rear shock mounts. I strongly recommend you seek out someone to put the car up in the air on a lift and inspect it for the unsafe issues that I have just presented, you might want to tow it to your BMW service provider to accomplish the inspection, be safe, do not take chances.
Jan 28, 2011 at 5:34 PM
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DRJON1
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Thank you for the info. I think it sounds more like a sharp electrical popping than frame /differential/shocks. But I will see my repair guy ASAP.
Again thank you.
Jan 28, 2011 at 5:38 PM
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DOCHAGERTY
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My response may be a little over the top, but you can agree I'm sure, that noise can be different things to different people. Cyberspace has it's limitations.....
Jan 28, 2011 at 5:43 PM
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DRJON1
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Dr Hagerty,
Thank you again
Jan 28, 2011 at 5:44 PM
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DOCHAGERTY
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You are very welcome.
Jan 28, 2011 at 6:09 PM