Oil Pressure Sender: Testing and Inspection

OIL PRESSURE AND OIL PRESSURE SWITCH, CHECKING





NOTE: To functionally check and service the optical and acoustical oil pressure display system.

- Remove the 1.8 bar oil pressure switch (white) and thread it into tester VAG 1342
- Thread the tester into the oil filter flange in place of the removed switch
- Connect the brown wire of the tester to ground
- Connect LED tester VAG 1527 between battery positive and -A- the 0.3 bar oil pressure switch (F 22) using jumper wires from the VW 1594 adaptor kit
^ the LED tester must light up
- Start the engine and slowly increase engine speed
^ between 0.15. to 0.45 bar the LED tester must switch off, if not, then replace the 0.3 bar pressure switch

- Connect LED tester to -B- 1.8 bar oil pressure switch (F 1)
^ between 1.6 to 2.0 bar the LED tester must light up. If not, then replace the 1.8 bar oil pressure switch
- Increase engine rpm
^ at an engine speed of 2000 rpm and an oil temperature of 80°C (176°F) the oil pressure must be 2.0 bar minimum