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What to do when my BMW 3 Series is making a weird noise while driving?

I have a BMW 3 Series and recently noticed that it's making a strange noise while I'm driving. It sounds like a loud rattling noise coming from the engine. What could be causing this and how can I fix it?

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Answers (3)

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It's possible that the noise is coming from a loose or damaged belt in your engine. You should have it checked by a certified mechanic as soon as possible. Driving with a faulty belt can cause further damage to your engine.

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Another possible cause of the noise could be a faulty pulley or tensioner in your engine. These parts are responsible for keeping the belts in place and if they are malfunctioning, it can cause loud noises. Get them checked and replaced if necessary.

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In some cases, the noise could be coming from a problem with your muffler or exhaust system. Have a mechanic inspect these parts for any damage or leaks.

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