i had the same fault with my mk3 gti. when i bought it in january there was a water leak on the side of the water flange. i removed it and put it back on with some cheap instant gasket (which i found to be too weak) and it didn't work. then i tried again with a stronger instant gasket (which still didnt work). so then i bought a tube of gasket that says it is strong enough to use as a head gasket, so tried taking it off again, but this time the top bolt snapped as i was taking it off, not leaving enough thread to grip with anything. so the drill was straight out. but i must have drilled off centre and when i got the bolt out i realised the hole that was left was bigger than the bolt and there was no thread left. so temporarily i used the new gasket i got, secured the bottom bolt in, and used the strap i found in the side of my boot (i think its there to keep the toolkit(or something) secured in the side of the boot) to pull the water flange up and fastened it round the back of the carb. i then done a 200 mile round trip and it was still fine. but as i dont have the money for a decent engine change yet i'm going to get some thread bolt with no head, stick it into the hole in the head with quicksteel, replace the flange and just stick a nut on the top end. Oh what fun!
