Whenever I start my BMW Z4, I hear a strange knocking sound coming from the engine. It only happens when the car has been sitting for a while. What could be causing this?
ReplyIt is possible that the knocking sound is coming from a loose engine component such as a belt or pulley. I recommend taking your car to a mechanic for inspection and possible tightening or replacement.
Another potential cause could be low oil levels. Make sure to check your oil and top it off if necessary. If the noise continues, it's best to have a professional check for any other underlying issues.
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