04-28-2021, 02:42 PM | #1 |
Enlisted Member
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"black stuff" from the right 2 exhaust pipes
Hi everyone,
new here. Recently purchased a 2018 M2 with 26kkm on it. I'm not too savvy when it comes to cars, so bear with me please. Today I've noticed this: As you can see, that black stuff, whatever it is, is only coming out of the right two pipes. Is this normal / what is it? Thanks |
04-28-2021, 02:54 PM | #2 |
First Lieutenant
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Carbon deposits from running while everything is cold. The exhaust valve closes off the left side so you only get the buildup on the right. Completely normal. If it's really stuck you might need a metal polish to remove it.
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ThatBlueM24.50 AndrewC198910931.00 |
04-30-2021, 12:30 PM | #4 |
Lieutenant
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Totally normal. If you want to get rid of it I suggest a device like the Mother's powercone on a drill with a polishing compound. But it will only ever be a temporary fix.
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