I recently noticed that my BMW M5 has a rough idle and I'm not sure what could be causing it. What could be the underlying issue and how should I address it?
ReplyFirst and foremost, check for any vacuum leaks as these are a common cause of rough idle in BMW M5s. Also, inspect the spark plugs and ignition coils for any signs of wear and tear. If the problem persists, it may be worth bringing your car to a mechanic for a diagnostic.
Another thing to consider is the cleanliness of your fuel system. If you haven't had a fuel system cleaning in a while, this could be causing the rough idle. You could also try using a higher octane fuel to see if that makes a difference.
In some cases, the rough idle could be due to a faulty oxygen sensor. Have your car's sensors checked to see if this could be the issue.
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