Exhaust gets loud

Asked by May 15, 2017 at 12:29 PM about the 2005 MINI Cooper S Hatchback

Question type: Maintenance & Repair

I have a 2005 Mini Cooper S that when driving after 20
minutes the exhaust gets loud, but if I let the car sit for a
little while it gets quiet again, then gets loud again. What
causes this?

2 Answers

96,265

Maybe you have an exhaust leak. I would check for loose clamps etc.

175

Given the temperature factor I'd be incline to recommend you look at the catalytic converter(s) first since they are restriction points for hot gasses and often collapse internally.

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