Recently, my BMW M4's engine idle speed has been noticeably high, even when the car is in neutral. Is this a common issue in M4s and is there anything I can do to fix it?
ReplyHi Mark, high idle speed can be caused by a variety of factors such as a vacuum leak, a faulty idle control valve, or even a dirty throttle body. It is not a common issue in M4s, but it may be worth getting it checked by a mechanic to determine the exact cause.
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