mcquinn
Veteran Member
I have a 1996 TDI passat. I wanted to change the glow plugs and the gentleman asked if I needed 10mm or 12mm? I asked for the difference...he said one is for the TDI with a glow plug preheater, and the other is not. Can anyone shed a little more light on this? Plus, how do you get the bus bar off? On my older diesels I used to remove the 8mm nut and take the copper bus bar off each plug. There is a large one piece rubber thing on all four...does it pull off? Thanks