Originally Posted by
AK83
I did mine(oil pressure switch) a few weeks ago.
Been chasing the only leak on my Tdi for a while now.
My mechanic made a comment a while before that, when he asked me if I had any oil in it! [tonguewink]
My oil pressure switch was leaking from the front of the plastic cone shaped body. Assuming it's original, then 20-ish years, you'd expect the plastic to deteriorate in that time.
I gooped it up with a heap of Permatex silicon(some orange looking stuff I have sitting about), smoothed it out, tucked it into the front of the cone, into the spade connector .. leak stopped(kind'a).
Turns out there is a small weep from the oil pump - block gasket too(will try to do a fix) and I think a small bit from the oil filter rubber gasket too. Oil settles on top of the diff over time, so it looks like the diff is leaking.