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      07-28-2007, 04:04 PM   #7
TopDown
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Drives: 2017 G30 540i M Sport
Join Date: May 2007
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Quote:
Originally Posted by Ski View Post
Define 'low rumble'..it could be just the air surrounding you and you're not used to it..
In a previous Z3 Roadster I could drive with windows fully lowered and get nothing but usual wind noiose. In M Roadster with the windows fully lowered, there is a noticeable low frequency rumbling noise on top of the usual wind noise. Raising the windows slightly makes the low frequency rumble go away - and then just the usual wind noise remains.
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