I recently purchased a BMW XM and noticed that the engine is making a strange knocking noise. It seems to be coming from the bottom of the engine and it's especially noticeable when idling. What could be causing this and what should I do?
ReplyThis could be a sign of a worn out engine bearing. It's important to have this checked by a certified mechanic as soon as possible. Don't wait too long or it could lead to more expensive repairs.
It's possible that the knocking noise is caused by a loose or damaged spark plug. I recommend having the plugs checked and replaced if needed. This should resolve the issue.
If your car is equipped with a turbocharger, the knocking noise could be a result of a failing turbo. Have a mechanic inspect the turbo and replace if necessary.
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