Fanaudical

92 Audi 100, fwd, 2.8L 12V - I keep getting an autocheck oil pressure warning above 2000 rpm. According to electrical schematics there is a 2.5 bar oil pressure switch somewhere in addition to the 0.3 bar oil pressure switch and the oil pressure sender unit.

Where is the 2.5 bar oil pressure switch installed? I can't find it anywhere.

Thanks for the help.

egp320i

The oil pressure switch is located on the left side of the oil pan behind the oil filter (warning light and alarm).
For vehicles with an oil pressure gauge, the pressure sensor is an integral part of the switch (black connector).
A-1.8 bar (26 psi) oil pressure switch (white connector)
B-0.3 bar (approx. 4 psi) oil pressure switch (blue connector)

Straight from Bentley for AAH

Hope this helps