tazilla

Hey everyone, CEL popped on the wife's car. Brought it to a MB certified shop to get it checked out. Came back with...

MISFIRING(P0300)
MISFIRING OF CYLINDER 2: DAMAGES TWC(P0302)
MISFIRING OF CYLINDER 1: DAMAGES TWC(P0301)
MISFIRING OF CYLINDER 5: WORSENING OF EXHAUST EMISSON VALUES AFTER ENGINE STARTS(P0305)

Going to be replacing all of the sparks. Also will need to replace cylinder 1 & 2 ignition coil per TECH.
My question is...what is the layout of the spark plugs? Driver side obviously has 3 in-line from front to rear as well as the passenger side.

??Is it Driver side(front to rear):1,2,3??
??Is it Passenger side( front to rear):4,5,6??

PLEASE HELP!!!

THANKS IN ADVANCE
Tazilla

Rev 2 Liv

Sounds like your catalytic converter or something in the exhaust manifold is forked.

tazilla

no. I have the dianostic sheet. Its the ignition coil for cylinder 1 and 2. That why I need to know where those two are instead of guessing. Anyone???

ontmiss

Cylinder 1 is passenger side closest to radiator then #2 and #3 closest to windshield

tazilla

Thanks...you the man!!!

ontmiss

Here I found a pic

Glyn M Ruck

Good pic!

Please note for future reference that cylinder identification is stamped on/cast into the heads.

Also note from an OBDII perspective. Cylinder 1 is always in Bank 1