hi,i own a mercades 320ce 1992/3 and have had no problems with ignition system, until i cleaned and washed the engine. on starting up after cleaning,the engine ran ok,until warm when it began to missfire. so i took out the plugs and there was dampness in the leads so i dried every part of the system.and she ran on 6 cylenders again.only to start to missfire again. i ran the engine to see if it would clear but no,so i took out the plugs again to discover that the coil pack that feeds number3 &4 cylenders was not fireing,so to cut a long storey short i ordered a new coil pack. i fitted the new coil and tried to start the engine. this time it would not start at all. it is fireing , but it is all over the place.allmost like the wrong fireng order,but i cant see how i can go wrong with that. i must say that i have had 24 years experience in the motor trade as a mecanic,all be it quite some time ago, hope you can throw some light on the problem. i have used your services before and found it to be exellent.d. brown. p.s i have fitted a new set of beru plugs, i wanted bosch or ngk but i got the french ones.hope they are compatible.
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