Many M4 owners have reported that their car has a rough idle at low rpm, which can be quite concerning. The engine may feel like it's shaking or even misfiring. In this question, I will explain the possible causes of this issue and provide some tips on how to fix it.
ReplyOne possible cause of a rough idle in your M4 could be a dirty or clogged air filter. This can restrict airflow to the engine, causing it to idle rough.
Another reason for rough idle could be a faulty spark plug. If your spark plugs are old or worn out, they may not be providing a proper spark to the engine, resulting in rough idling.
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