I have a 2015 BMW 328i and recently it has been idling rough. The engine feels like it is shaking and the RPMs are constantly fluctuating. What could be causing this issue?
ReplyPossible causes for a rough idle in a BMW 3 Series could include issues with the spark plugs, fuel injectors, or vacuum leaks. I would recommend having a mechanic perform a diagnostic test to pinpoint the exact cause.
Another potential cause of rough idle could be a faulty idle control valve. This component helps regulate the amount of air entering the engine at idle. I would suggest having it checked and replaced if necessary.
One simple solution to try is cleaning the throttle body. Over time, it can become dirty and affect the smoothness of idle. Use a specialized cleaner and follow the instructions carefully.
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