Why does my BMW 4 Series engine make a rattling noise at high speeds?

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Samantha Smith 8 hours ago

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Why does my BMW 4 Series engine make a rattling noise at high speeds?

I've noticed that my BMW 4 Series engine starts making a strange rattling noise when I go over 60 mph. It doesn't seem to affect performance, but it's concerning. What could be causing this and is it something I should be worried about?

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**John** · Answer 1 · 2025-07-13T00:45:13+00:00

Some possible causes for the rattling noise could be a loose heat shield, faulty bearings, or even a problem with the exhaust system. It's always best to get it checked out by a mechanic just to be safe.

**Maria Rodriguez** · Answer 2 · 2025-07-13T00:45:13+00:00

I had a similar issue with my BMW 4 Series and it turned out to be a loose exhaust clamp. I tightened it myself and the noise went away. You could try checking all the clamps and see if that solves the problem.

**Michael Brown** · Answer 3 · 2025-07-13T00:45:13+00:00

It's always a good idea to get any unusual noises checked out by a professional, especially with a luxury car like the BMW 4 Series. It could be something simple or it could be a sign of a more serious issue. Better to be safe than sorry.