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Discussion Starter #1
Hello everyone, my 323i se makes a mettalic tapping noise every time I go over speed bumps or just bumps in the road, starting to p**s me off all feedback appreciated. Jay
 

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I would check the exhaust heat shield, and exhaust mountings first as they are probably the most common reasons for rattling :)
 

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Particularly the gearbox-end exhaust hangar - very high fail item and does give a metallic tapping sort of noise on bumps.
New one about a tenner from the stealers.

Also, check the old toolbox in the boot lid for anything loose - a prime suspect!
 

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Discussion Starter #6
thanks I will have to get it up on some ramps and have a good look tomorrow, didnt even think of tools in boot lid, if bushes are they easy to replace? Jay
 

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I have found the same problem... head under the car shows the heat shield is loose and resting on the exhaust. What do I do to fix back to the chassis?
 

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I had a issue like this for months and couldnt find the issue till yesturday and i found that the metal shield around the cat one of the wled broke and the shield was slapping against the exhaust
 

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Use a penny washer (or something same size cut from tin can) to enlarge the coverage over the rotting heatshield bolt holes.
 
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