I've identified an oil leak coming from at least one (of the two) oil pressure switches on top of the oil cooler of my 1990 16v GTI. I plan to replace the pair of them but I'm struggling to find out the part numbers for each. I did find this diagram but I'm struggling to make much sense of it: http://www.partsbase.org/vw/golf-go...h-switch-for-reversing-light/#p-vw-056919081e Presumably there are o-rings between each switch and the oil cooler which should also be renewed? And finally is there a torque specification, or is the answer as tight as it needs to be not to leak? Thanks!
From a recent thread: They seal with a little metal (copper?) washer that should be supplied with new switches I think. Not sure on torque, shouldn't need a lot. Genuine from dealer/TPS recommended as they're not that expensive.
