Leaked around the top seal (gauge/pump aperture) when I bought it 2 years ago - mostly when tank is fullish..Diff part nos between Mk1 and Mk2. As to whether it will fit - only one way to find out Laughing
What's up with the tank in yours....
I changed the seal, without much improvement it must be said. I feel that the problem is that someone has distorted the top threaded part of the opening, and the only way to effect a cure is to change the tank. The underneath of the car is always a little greasy.
Are you saying that MK1 and MK2 have different part numbers even if they are identical?