I'm pretty sure like 2 years ago I had the "GGGRKKK" noise a second after startup during morning starts when it was really cold out for a few months. But it didn't sound very loud so I kinda ignored it. It's been at least a year since I've last heard it, so this thread leaves me wondering: what kind of damage would such a noise eventually do? Mine seems to have gone away on its own.
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2008 Sparkling Graphite e90 M3 6spd
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