I've noticed that my BMW 4 Series has been idling rough lately. The engine seems to be shaking and there's a slight whirring noise. What could be causing this issue and what can I do to fix it?
ReplyThere could be a few possible reasons for this issue. It could be a problem with the spark plugs, fuel injectors, or the idle control valve. I recommend taking your car to a BMW mechanic to diagnose the exact issue.
I had a similar issue with my BMW 4 Series and it turned out to be a vacuum leak. If your car is still under warranty, take it to a dealership to get it fixed. If not, you can try using a smoke machine to locate the leak and fix it yourself.
Have you checked your air filter? A dirty air filter can cause rough idling. I suggest replacing it and see if that improves the idle. You can also try cleaning the throttle body with a specialized cleaner to see if that helps.
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