I'm not running the TSi currently without fluid!! I know its dumb and thats why I got a flatbed to take it home for me when I found out my radiator neck was broken up!JO_JO410 said:The block is cast iron. Running a car without coolant is not a good idea, ever! The water pump relies on coolant for lubrication. I'm guessing your turbo has a wet bearing housing so running without coolant is a bad idea for the turbo too.