Just wondered what you thought to this... Booked in with a Seat Dealer for service on sat morning for 170. I've asked them to look at a glow plug which will not come out of the engine but I've no idea if they can fix it or not. I've just rang an indipendant Volkswagen specialist (who I know are good), they could get me in for a service this sat for 98 and could take a look at the glow plug for me but wouldnt be able to carry out any work. He seemed to think there was a tool available to get them out but said he would have to look first. Just didnt know what anyone thought was the best option to go with? Just with it Seat I think they give it a diagnostics, plus wouldnt mind them double checking the turbo which they repaired for me the other month to make sure thats still ok. Cheers PS Seat Leon 150PD Diesel
If it's out of warranty go to a specialist. If he's any good with modern stuff, he should have the diagnostic kit.