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Why is my BMW 3 Series producing a loud rattling noise?

Recently, I've noticed that my BMW 3 Series is producing a loud rattling noise from the engine. It only happens when I accelerate and it seems to be getting worse. What could be causing this and what steps should I take to fix it?

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Answers (3)

E

There are a few possible causes for a loud rattling noise in a BMW 3 Series. It could be due to a faulty exhaust system, loose parts, or engine issues. I recommend taking your car to a trusted mechanic for a diagnostic test to pinpoint the exact cause.

M

I had a similar issue with my BMW 3 Series and it turned out to be a loose heat shield. It's a common problem in these cars and a relatively easy fix. Just make sure to get it fixed right away to avoid any potential damage to your engine.

S

Another potential cause could be a failing catalytic converter. This can be a more expensive fix, so it's important to get it checked by a mechanic as soon as possible. It's also important to note that this issue can negatively impact your car's emissions, so it's best to address it promptly.

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