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      09-17-2010, 01:51 PM   #2
Huz-Z
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Drives: Z4 3.0si, 328 XDrive, X5 35i
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Is that a loose and rattling heat shield on an exhaust system component?

I had an '89 VW Wolfsburg Golf that started making a similar sound. It used to go away if the engine was revved up or the car driven. The engine vibration at idle speed would make the heat shield rattle very noisily.

The fix for my Golf was to remove and throw away a heat shield on the catalytic converter. I was cautioned to not leave the car idling if parked on a grassy spot, as the exhaust heat could be enough to catch the grass on fire!

Good luck!
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Huz-Z


BMW Z4 3.0si Roadster. Montego Blue Metallic. Premium and Sport Package.
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