Hi sorry it's been awhile since i last posted, my wife has had our 4th son jan 15th and had no time for anything else, anyway back to the heater problems i need some moere help please. Cambelt and water pump have been changed, vag com in hand but cannot get it to work get as far as port status ok but no interface a code of 99 comes up with a list of problems,am i doing something wrong am i missing something, led on cabel lit up ignition on but nothing else, I am running windows vista if that helps please help many thanks paul