I have 200 Mercedes ML320. I had cylinder 4 and 6 misfire, I changed all the plugs and after a week with about 100miles on it I had same linders misfire again. I thought it was the ignition coil so I swapped them all and after the same time period I still have cylinder 4 and 6 misfire agin.
Can any one give me some ideas as to what to do next
Year: 2000Make: Mercedes-BenzModel: ML320Engine: 3.2
had cylinder misfire on 4 and 6, so I did a complite tune up after about 150 miles I still had cylinder 4 and 6 misfire. I then swaped the coils and was good for another 150 miles and then had the same problem again cylinder 4 and 6 misfire
Not uncommon for wires to cause this. Put either 4 wires on the affected cylinders or put a set on it.