well then ladys and gents i have a problem i have just done a vr conversion on my golf, i was driving the vr saturday day with heaters on all working and all was fine i went home picked the missus up parked the car up for about 2 hours and then went to a friends house on the way i noticed the heater controls were on hot but heater was blowing freezing cold temp needle was in the usual place and when i got to my mates i checked the top and bottom hoses,both hot also checked both heater hoses which were hot too, now is this a matrix problem i.e new matrix or ive herd something about a heater valve????? please help as its gettin to that time of year where ya really need heaters