Date registered: Jul 2019
Vehicle: 2003 Mercedes C320 3.2 Coupe
Location: Sacramento, CA
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
2003 Mercedes C320 misfiring cylinder
I recently got a check engine light, loss of acceleration and slight shake. So, I pulled to the side and restarted the car and everything was working normally again.
Upon reviewing the code, it showed P0300, P0302, P0303. So, I suspect cylinder 2 and cylinder 3 misfired and since it was two cylinders, it threw P0300 which indicates multiple cylinder misfiring.
So, I parked it in my garage and today the CEL is gone and the car is driving normally.
So, can you please tell?
1) If I should be worried and have a mechanic immediately look at my 2 and 3 cylinders or all of them??
2) Once the cylinder misfire occurred, does it disable cylinder 2 and 3 to avoid further damage and leaving the regular power delivery from rest of the four cylinders?
3) Once the cylinder misfire occurred, does it keep misfiring all the time or will it misfire in certain circumstances like high rpm, high speed, fast acceleration or something?
Any estimate on what would it take to fix it and any estimate on reasonable cost to have it fixed?