My son bought a 2.0 litre 'Y' reg Passat two months ago. Perfect nick with just 16k confirmed miles on the clock. He noticed on collection that the coolant level was below minimum and this was topped up. He has checked today and the level is back below minimum so clearly he is losing coolant from somewhere. There is no sign at all of any water leaks under the bonnet, and never any sign of water on the floor under the car. He is beggining to worry that this might be a head-gasket problem (although the car does have a
3 month warranty and he is taking it back to the garage tomorrow). The engine runs perfectly and there is no sign of 'mayonnaise' under the oil filler cap, and no 'steam' from the exhaust. Anyone any experience of coolant loss with the 2.0 litre petrol Passat? Common fault or no?
Kev