I've noticed that my BMW 3 Series has a rough idle when it's cold. What could be causing this and how can I fix it?
ReplyOne possible cause of a rough idle in a BMW 3 Series is a clogged air filter. Make sure to regularly check and replace your air filter to keep your engine running smoothly.
Another potential cause is a faulty fuel injector. If your 3 Series is idling rough and you notice a decrease in performance, have your fuel injectors checked and replaced if necessary.
In some cases, a dirty throttle body can also lead to a rough idle. Have your throttle body cleaned regularly to avoid this issue.
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