i went to get my headgasket job on my mk2 golf priced up and the bloke said to change the oil pressure switch before i consider having the headgasket done. if u have got oil on top of the inlet manifold betwwen cylinder 1 and 2 change the oil pressure switch as these are a common problem for oil leaks and make sure u get right colour switch as there are 4 different ones with different pressures which mine was black , so hope this has stopped mine and saved me a bit of money
