1,6,7,8 - Series and Mini CooperGeneral Chat related to models that do not fit into particular categories above. Please try to put your discussion in more appropriate sections. This section does cover the 1 Series, MINI Cooper and 8-Series vehicles: BMW 830i, BMW 840Ci, BMW 850i, BMW 850Ci, BMW 850CSi, M8, Alpina B12, BMW CS Concept and others.
When I driver over rough road (NYC Streets) or something simular like train tracks. I have a rattling sound coming from underneath my car. Could that be something serious. And when I say serious, I mean costly!
Get it on a lift and poke at your exhaust. Because you're talking about bumps though, and not at idle, it could also be brake covers (I assume they have those on 7-series)... But it could be a number of things. Where is this sound coming from? Can you pinpoint it to a side of your car, or is it just underneath?
funny thing about rattles is that they cant really be diagnosed over the net. your best bet is to get a buddy to help u and 1 of u crawl underneath it on jackstands and just figure out where its coming from. With any luck maybe its just a loose or bent heat shield on the exhaust. The reason u may need a buddy is so that he can rev the engine or do whatever it takes to try and duplicate the rattle while you search for the source, or sometimes its just good to have 2 sets of eyes and ears on the problem.
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