Hey guys,
I have been reading this thread as I just picked up a 2011 X5M. I also own a 2010 e90 m3. I am the only owner to the M3 since day one. The x5m was owned by an older woman so when buying it I felt more at ease to some regards with the engine and tranny.
I bring this up as I have been in the process of paint correcting it. I noticed on the back of the vehicle a lot of discoloration/soot where the license plate would be. I have the same issue with my M3, but it is catless so it's bound to happen. I thought it was odd to see this. The more that I have been driving the car and getting more progressive with the throttle I can definitely tell there is some sort of misfiring ocurring as I had the same symptoms in my AUDI TTRS that I just traded in.
In reading this thread this leaves me wondering about the injectors. The car has 29xxx. I bought it with 28xxx. So literally just started getting the car adapted to my driving style.
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