no 5 cyl misfires on 2000 Mercedes-Benz E320

should I replace all 6 coils or would the 2 that fire no 5 be enough

by in Des Moines, IA on April 25, 2011
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3 answers
ANSWER by , April 25, 2011
i would only do the ones that you have to
ANSWER by , April 25, 2011
I would test them, just because a couple have failed does not mean the rest will. Test them and fix only what is broken. It would probably be a good idea to replace the spark plugs if they exceed 60,000 in mileage while you have it apart. Ron.
ANSWER by , April 26, 2011
your issue is likely not a coil; the plug wires get soaked with oil from the valve covers. you can buy the plug wires individually as needed.