01 2.3 misfire - falconzz
I have a clk 230 kompressor 2001 92k on the clock full dealer service history,uneven idling, a misfire maybe had it checked by a auto elcetrician who found a misfire on no2 cylinder after clearing the fault we swapped coils with cylinder 1 and still had mis on no2.so at this point we thought it was a plug so had it serviced ran it from cold semed fine till it warmed up , again a misfire but on 1,2 and 4 this time checked all filter boxes fine, even cleaned the maf sensor with a special cleaner MB say bring it in and they will diagnose it but at their prices not sure i can afford too.engine temp is around 90 and the orange engine management light is on please help bills are mounting martyn sheffield uk



Optional Information:
2001 kompressor avantgarde auto clk 230 k 2300

Already Tried:
changed ignition coil on cylinder 2 with cylinder 1 fault stayed with one ,petrol additive to clean injectors, cleaning mass air filter with cleaning fluid checked all visable wiring for scorches and breaks
01 2.3 misfire - Number_Cruncher
When the engine is hot and missing, stop it, and quickly check the compressions.



01 2.3 misfire - piff71
Hello there i had the same prob on my 2000 230 komp at 120,000 miles missing all over the place ,the idling was eratic it turned out the maf sensor was faulty ! i put a new bosch one on problem solved . Aparently according to the merc specialist the diagnostic machine wont always pick up maf sensor faults and mine was really bad could hardly even drive the car .