I have 2005 mercedes c180 estate, the engine management is on and showing misfire cylinder 3, the car always vibrating which time i am driving it.
I took it to my mechanic and they changed coil and spark plug but the engine is still showing engine management light and vibrating and they told me that further investigation and is gonna cost me between £1800.
I dont have that kind of money, please i need your help to resolve this problem.
many thanks
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