[Jamesp]

Vanya, sorry for the back and forth on coolant, it does not help you get your car running. The fact is if you mix the coolant commonly available with US cars and the coolant that is specified for your Boxster, the result is the two coolants can react and form a gel. If this has happened to your car the gel has to be cleaned out of the cooling system. I don't know the procedure for doing that. I was hoping a forum member with that knowledge would respond. Keep this in mind if your water pump checks out good.