So a little back round I have a mk3 with a mk6 engine and I lose a little coolant out the top of the expansion tank as its not connected to anything.
Could any one tell me where it is meant to connect to please I've searched and can't find anywhere I don't know if this is cus the tank is from the mk3 or the mk6 doesn't have anyway for it to go to an overflow.
And secondly is it worth possibly swapping the tank for one out of a mk6 that doesn't have said overflow or block it off