Checking the oil pressure in the lubrication system (Audi 80 B2)

Remove the oil pressure sensor.

Attach a control pressure gauge to the sensor location.

Start the engine and bring the oil temperature in the system to operating temperature (80°C).

Measure the oil pressure in the system at the corresponding engine crankshaft speed (see subsection "Design and technical characteristics").

Remove the control pressure gauge and install the oil pressure sensor in place.

[This publication is borrowed from the resource: audimanual]