I recently purchased a used BMW 1 Series and have noticed a rattling noise while idling. It seems to go away once I start driving, but returns when the car is stopped. What could be causing this and is it a cause for concern?
ReplyIt is possible that this rattling noise is caused by a loose exhaust heat shield. This is a common issue in BMWs and can usually be fixed by tightening or replacing the heat shield.
Another potential cause for the rattling noise is a faulty engine mount. This can cause the engine to vibrate and create a rattling sound. It is important to have this checked and replaced if necessary, as it can lead to further damage if left untreated.
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