Had to remove 4 x glowplugs from my TD4 2005 recently. None moved and I know, from a bench test of a broken one, that they snap at 30 ftlb. I didn't want to break them so trawled for techniques that might work. This one looked reasonable and it...

If its still got the original inlet manifold gasket, that can leak oil into water

That is how I rebuilt my IRD. I wasn't even keen to actually remove it, but I have an inspection pit in my garage which made the job so much easier. Having done it and put it back together again, I'm much more confident to take on other jobs...

I found nobody alas. I looked in France, Netherlands, Germany, Austria or Hungary last year. It seems that new is the only option. I can get GKN new and in some ways, this would be the only solution I would trust. Expensive, yes. Second hand...

Tested again today on a different make of charger. It took a bit of faffing about to get the app installed but eventually it worked. I plugged the car in, opened the app, told it to start, got in the car and pushed the button and a few seconds...

thank you, but I think I will be able to find one locally, so please don't worry.

I'll see if I can find something more out for you. I'll update here.

The disc you want is advertised for 50€ at this supplier site.