I recently purchased a used BMW 1 Series and have noticed that the engine is making a loud knocking noise. It seems to get louder when I accelerate. What could be causing this issue and how can I fix it?
ReplyThe loud knocking noise could be a sign of low engine oil or damaged engine bearings. It's important to check your engine oil levels and top it off if necessary. If the noise persists, it's best to take your car to a mechanic for further inspection.
Another potential cause of the loud knocking noise could be faulty spark plugs. It's recommended to have them checked and replaced if needed.
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