Quote:
Originally Posted by E90-07
Just had the same problem with mine, N51 motor but i believe everything internally should be the same to an N52 just exhaust pipe modifications, as i just read in the AA exhaust thread, but yea had a rough idle outta no where would misfire on WOT and bog down at cursing speeds took it into the dealer and ended up being #4 coil pack was shot, actually had oil inside the cylinder and the spark plug hold was also flooded with oil and i was leaking air out of my valve cover gasket, as they did a smoke test and realized that, but since then knock on word cars running fine no problems so far, hope this helps you guys oh and I'm around 80k mileage wise
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did you have a SES light?
im having the same symptoms. When idling, the car sputters/shakes/hiccups most of the time and when i go WOT it misfires. no SES light tho and occasionally it behaves normally