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200 Mercedes ML320: I thought it was the ignition coil..swapped..agin

 

Customer Question

Hi
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
Thanks

 

Optional Information:
Year: 2000
Make: Mercedes-Benz
Model: ML320
Engine: 3.2

Already Tried:
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

Submitted: 1320 days and 13 hours ago.
Category: Mercedes
Value: $15
Status: CLOSED
Picture
Expert:  MBGuru replied 1320 days and 12 hours ago.

Not uncommon for wires to cause this. Put either 4 wires on the affected cylinders or put a set on it.

 
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