Car is a 2004 2.0 TDi BKD.
I noticed this on the way home from work this evening; I'm sure it wasn't the case this morning.
At idle or at low speeds the blowers will only give cold air. Once the revs are up it'll start to blow hot. The temp on the dash is sat at 90 degrees.
The radiator is hot although the hose coming from the front of the engine (below dip stick) is cold. I opened the expansion tank a little to see if there was pressure and coolant has nigh-on filled the tank....
Does any one have an idea of what could be the cause? I'll scan it tonight.