My 2000 MB E430 had CEL last week and the code was P0303 Cylinder 3 misfired. I clear the code and after a week it didn't come back.
I suspect two spark plugs and wires(2 plugs and 2 wires per cylinder) of cylinder 3 may be bad. I have spark plugs but didn't buy the plug wires yet(they are expensive and sold as pack of 16 and I don't like to throw 1 part after another at it), I am thinking may be I need to check the resistance of the wire, what is typical resistance of good spark plug wire ? Also, what can you check to see if the ignition coil is still working or not ?
I suspect two spark plugs and wires(2 plugs and 2 wires per cylinder) of cylinder 3 may be bad. I have spark plugs but didn't buy the plug wires yet(they are expensive and sold as pack of 16 and I don't like to throw 1 part after another at it), I am thinking may be I need to check the resistance of the wire, what is typical resistance of good spark plug wire ? Also, what can you check to see if the ignition coil is still working or not ?