PCharm

Thanks for the reply - I ended up taking the plugs off then hoovering/blowing all the debris out from the well they sit in. I then sprayed some PlusGas into the well and put the plugs back on. I can confirm you can in fact spray oil into them with the plugs on as I did that for the following 3 days. All glow plugs now replaced with no dramas. Hopefully good for another 100k!

Thanks, I have been soaking them for a few days and using the tighten then undo technique all came out okay. Looking at the specs on the Bosch website it seems to suggest 10 - 15 nm for M10 glow plugs. So I'm wondering if I should use 15nm instead....

I'm looking to replace all 4 glow plugs on my 2.0 TDI in the coming weeks as I had the The P0671 fault code which I cleared and hasn't come back since. I suspect it will do again soon as the car is on around 120k. With that in mind do you know if it is possible to spray the penetrating oil down into the glow plugs without removing the electrical connector on top? I was going to try and get a weeks worth of running cycles in to maximise chance of success. I also wanted to confirm the torque specs are 17nm for the non-pressure sensing plugs and 12nm for the pressure sensing one?