Where is the Oil pressure sending unit? Have looked all over engine...

The 1.8t engine can and does sludge up if you dont do regular oil changes with synthetic oil, i hope it is just the sending unit, do a internet search.

I think it is below intake onfront of engine . We had same problem .Our light came on at 2000RPM . Used oil that owners book said met there specs . It sludged up oil pan ,oil pump pickup tube . We had 50 psi oil presser at 1000 rpm , 20 psi at 3000rpm . Cleaned out oil pump pickup tube and sludge in oil pan . Changed to full synthetic oil . V W extended warranty on 1.8 turbo Passet but not on 1.8 turbo beetle . Said they were not same engine . Oil we used is the one that says it does not sludge, but it does in V W , Aldi and other Inports. Our sending unit was good but replaced it anyway . V W dealer was no help . To bad ,so sad......