Checking Hydraulic Pressure

Checking hydraulic pressure





The hydraulic pressure can be tested by measuring the system pressure in the D and R positions in the idling and stalling modes. The test will reveal the condition of the transmission.
1. Put chocks under all 4 wheels.
2. Apply the Handbrake fully.
3. Remove the test plug (for B5) on the transmission housing and connect an oil pressure gauge.
4. Press the brake pedal down hard.





5. Start the engine and check the idling speed (825 rpm).





6. Depress the foot brake fully and place the selector lever in positions D and R respectively and check the system pressure according to the table.

Important: Do not run for longer than 5 seconds when testing as the oil temperature can rise above the permitted level. Wait at least 1 minute between tests.








Check that no leakage occurs when the oil pressure gauge is connected.