sebc63

I have 2012 e63 with a P30. Last Friday i removed the resonator and installed straight pipes. Drove the car Satrday, Sunday no problems. This morning started the car so it warms up before i leave for work, check engine light comes on..... Drove the car later for 25 miles to work. Now 2 hrs later decide to go and start the car in the parking lot to see if any more issues but now "NO Check engine light". Any advice what the reason???

Vic55

Very odd indeed as I have done resonator deletes on both of my M157's... the resonator is past the post cats (even cutting the post cats wont trigger) and should never trigger a CEL. Maybe it was a one off situation. Id keep driving it and see if the car adapts and doesnt trigger further (which it should not).

otakki

Hopefully it will go away by itself. If not, obviously MB service is where you are heading next. I wonder how MB service will respond to the resonator delete.

R Al Shamsi

U just need to program it

NickE63

Vic55 I'd really like to hear either of your cars with the deleted resonator!

Vic55

This is the only posted vid I have and its a standstill rev up:

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