Well, after re-seating the seal in my pressure cap, I still get occasional coolant leaking. This only happens after arriving home and turning car off. The rad fan comes on OK, but after it turns off, the coolant level in my resevoir creeps up and sometimes dribbles out. I am still not sure if the fan is staying on long enough but I don't think this is the problem.
Others here have suggested to replace the pressure cap. I called my local VW dealer and it about $21 CND for the cap and $4 CND for the seal (which looks like an O-ring). My question is, do I need to replace the cap or can I just get by with replacing the seal only. Is there any other aspect of the cap itself which may have failed and contributes to my coolant leaking.
Many thanks in advance.