Quote:
Originally Posted by bmw_m2_cali
Could this be from bad gas?
https://s.amsu.ng/p0ebEDPcZpVN
It is a stock N55 M2 (minus a few cosmetic touches). I brought it into the dealer, but they won't look at it for a week and I'm left wondering when I will get my car back/how serious this is. |
That sounds like a loose Exhaust flap. I had the same thing on my old M135i. It's a spring-loaded system, so likely replacing this spring will solve your issue.