This might sound like a stupid question, but if anyone has a MK3 Tdci130, would you have a look in the fusebox next to the battery, and tell me if fuse F3 is present? Apparently, this is the glow plug fuse. However, mine is missing! Strangely, I've had the car for nearly 4 years, and not had any problem starting from cold, apart from the DMF falling to pieces and clogging the starter.
Does this fuse actually have anything to do with the glow plugs???

i thourght F3 was for the aux engine heater

F3 is aux engine heater, not sure where the glow plug fuse is cant find it.
I dont have a fuse in F3

Thanks guys, the glow plugs must be on a different fuse then.