[Johnmed]

Jeez. Knew this wouldn’t be an easy job, but didn’t realise it would be quite the issue it is.

Can penetrating oil be applied well in advance? Have you seen those tools that rapidly heat up nuts and bolts? Like a kettle element crossed with a mig welder? I’ve seen those used to great effect on old car restorations. Wonder if that process could be adapted/used...

Edit: the tool is a commercial heat induction jobbie.

P.S. I think I’m right that glow plugs in TDi’s are used all the time the engine runs, not like they used to be on older diesels. What if anything, happens if you have a plug not functioning when driving? My sister’s C6 A6 four pot has had a faulty glow plug since she bought it a while ago. Starts and drives fine.