1997 Mercedes Benz C280 check engine code P0172 & P302?


don't know if help, work @ dealer , if me swap ignition coils if possible. can't remember may or may not able on 104 engine. if can swap coils , see if misfire on different cylinder. if coil if not need elsewhere. thing spark plugs themselves, fuel injector on cyl#2 leaking. fuel pressure gauge diagnose fuel problem. lastly, , highly unlikely, check compression cause misfire chances of car having low compression extremely light. hope can helpful. 1. spark plugs 2. check coil/spark 3 check fuel injector cyl #2. 4. check compression.

hi guys,
have 1997 mercedes benz c280 change radiator & got 2 check engine codes.

1- p0172
2- p0302

don't want go benz dealer cuz know rip me suggestion, advice or ?? in advance


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