When I cold start my 2.0 GTV and turn the Air con on in the morning there is bit of white smoke comming out of the exhuast. If I turn the air con off it seems to go. As I have never had a car with air con is this right as I thought white smoke is usualy a head gasket problem?
Have you had this car long ?
In winter, you get the "white smoke" for ages, as it takes ages to remove the water condensation from to exhaust.
In summer normally only minutes on a cold start. Unlikely to be AC related.
Maybe the situation is that by the time you see the vapour and then decide to turn off the AC the water vapor exiting the exhaust is already about to subside.