2 problems

[neilb1]

Doing a car service next week on a mates car 1.9 cdti think it is a 54 plate and the heater only blows cold the temp stays on min and does not move. I am to believe that this is the thermostat problem before i order one

The second problem is that the aux belt tensioner make a noise and is it this one from e bay ppl

http://cgi.ebay.co.uk/Vauxhall-Vectr...#ht_1058wt_905

[Rapala]

It sounds like the thermostat thats at fault, but check and see if both heater hoses that go into the bulkhead are hot, if they are it could be a problem with the air blend flap or its linkage inside the heater box. The tensioner in the link will not fit the 1.9 cdti models, its for the 2.0/2.2 litre diesel engines

[Big Sig]

another way to see if it is the thermostat is that if the car is left to idle then the temp will rise until the fans cut in as there is no air flow over the rad to cool it. This would then give you hot air through the heater.

[neilb1]

another way to see if it is the thermostat is that if the car is left to idle then the temp will rise until the fans cut in as there is no air flow over the rad to cool it. This would then give you hot air through the heater.

no done this and nothing the temp guage does not move and it still blows cold all the time even after a good run the pipes were cold as well

[Bigtee]

Replace your thermostat likley stuck open & when removed see if it is.

[neilb1]

cheers