Check Engine Light and Engine Misfire on Mercedes-Benz C350

Failed spark plug wires and/or ignition coils can cause intermittent misfires (rough running); the Check Engine Light may also illuminate. Diagnoses of the ignition system will be necessary to determine which components are at fault.

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Average mileage: 74,000 (59,000–89,000)
6 model years affected: 2006, 2007, 2008, 2009, more2010, 2012
7 people reported this problem
2 people shared problem details
It ISN"T fixed. It violently shaked when I started the car. Dealership still has it... it's been a month. They can't seem to figure it out, or they're lying to me. They initially told me it was spark plugs and some other random non sense. $1k later - turn the car back on three days after getting it back the first time, and worse than it was before. They said its mis firing in cylanders 5 and 6. But, its been 2 weeks since I heard that and they still cant' seem to figure it out. Meanwhile, the "service manager" has been apparently driving it around and told me is "drives like a champ." Great, have fun driving my car ??? Will I ever see it again !?!?!!!! Looks like I'm out $30K . SO SO SO MAD!
ENGINE MIS____---FIRE THINK 303 COME UP
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