The glow plug in cylinder 6 on my 2005 A8 3.0tdi quattro has snapped when the garage were trying to remove it. Basically the tip of the glow plug (the bit that glows) is stuck in place.

My garage has said that they can employ a specialist that can remove the plug using special tools to drill and then insert a tap to help remove it but at a cost off £200 plus!

has anyone had a similar problem like this? If so how much did it cost you to sort out?
Can anyone recommend a decent specialist in the Cheshire / North West area?

thanks