ChrisEdu
MB Enthusiast
- Joined
- Sep 5, 2005
- Messages
- 8,326
- Location
- By the southern sea
- Car
- E320CDi Estate - gone E320CDi Saloon - written off CLS 350CDi Coupé
Having had the temporary lighting of the coil indicator on the IC, I duly went about replacing all 6 glow plugs in the hope that this would rectify the issue. Alas, no! I was still getting the light come on and a code telling me that the plug on cylinder four had an open circuit.
So, next, I replaced the relay module, with another new Beru unit. Fingers crossed, in I got, turned the key and bam, same thing 0 on came the light.
Run another diagnostic - this time it reported both an open circuit on cylinder 4 AND a short to ground on cylinder four!
SO, I popped the bonnet, got the tools out and removed the plug from cylinder four (assuming that it is the front cylinder on the off-side?).
Having removed it, I noticed that it was actually warped! It had a slight, but perceptible waviness along the part inside the cylinder!
Thinking that that wasn't a good sign, I replaced it with an old one from the six that I had replaced. Still the same error codes coming up!
Please, could anyone help me with this conundrum? Do I start thinking about trying to replace the wiring harness for the glow plugs? Do I disassemble the plug cap and see if there's anything untoward in there?
I'm really starting to get quite frustrated with it. What I had hoped would be a nice simple job is rapidly turning into a right ball ache!
So, next, I replaced the relay module, with another new Beru unit. Fingers crossed, in I got, turned the key and bam, same thing 0 on came the light.
Run another diagnostic - this time it reported both an open circuit on cylinder 4 AND a short to ground on cylinder four!
SO, I popped the bonnet, got the tools out and removed the plug from cylinder four (assuming that it is the front cylinder on the off-side?).
Having removed it, I noticed that it was actually warped! It had a slight, but perceptible waviness along the part inside the cylinder!
Thinking that that wasn't a good sign, I replaced it with an old one from the six that I had replaced. Still the same error codes coming up!
Please, could anyone help me with this conundrum? Do I start thinking about trying to replace the wiring harness for the glow plugs? Do I disassemble the plug cap and see if there's anything untoward in there?
I'm really starting to get quite frustrated with it. What I had hoped would be a nice simple job is rapidly turning into a right ball ache!