Cooper SD - Warm Rattle!

Cooper SD - Warm Rattle!

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redguy

Original Poster:

132 posts

86 months

Sunday 8th March 2020
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Been deliberating about posting this for a while, given that it's virtually impossible to diagnose noises without hearing them!

However.....car is a 2013 Cooper SD, full dealer history, clutch replaced couple of years back. I've owned it for a year.

Weird thing is, it ticks over fine when started cold. When it's been driven for a while, and the engine is hot, the tick over becomes quite loud and, well, rattly. Bit like someone shaking tin cans! This stops as soon as you apply some throttle - even standing still - it only does it when stationary and warm with no accelerator pressure.

I've read elsewhere about the BMW diesels being loud - there aren't any error codes showing up, either.

Just hoping that anyone may have, or have heard about anything similar. It's done it since I've had it!

andySC

1,232 posts

165 months

Sunday 8th March 2020
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I had a bloody annoying rattle/tapping on my SD a few months ago. Turned out to be nothing more than a plastic terminal cover on the battery touching the bulkhead. It only appeared whilst at idle & disappeared as soon as there was any throttle. I had visions of serious engine work or pulling the dash apart to trace the offending irritation.

redguy

Original Poster:

132 posts

86 months

Monday 9th March 2020
quotequote all
Super....many thanks! I'll do some further digging.

Only odd thing with mine, is that it never does it when cold.