my 1994 300tdi went wierd on me last night
she was running fine all day, a trip up to dumfermline and all was well but then comming back from edinburgh it started overheating the temp gage was off the scale but no heat was comming through the vents ? so not wanting to cook it it stopped a few times and let her cool down . but about a quater of a mile to the house i thought i would risk it but the temp gauge went back to normal (half way) but still no heat from the vents
any ideas what might be causing this, could it be just aan air lock ?
has this happened to anyone else