Gooner1971
Member
Hi my CLS W219 has the glow plug light stay on for about 1 minute after starting. I purchased a diagnostic tool and ran a scan its come up with cylinder 3 glow plug open circuit. My question being which is cylinder 3 (I'm guessing left hand bank rear one as I'm looking at the engine from the front of the car.) And what are they like to change if heard horror stories of them being seized in position. Thanks