Power Steering Pump: Testing and Inspection

Power steering pump delivery pressure for vehicles with 8-cylinder engine, checking
Special tools and equipment required





- 3094 Hose clamps
- VAG 1402 Power steering test unit
- VAG 1402/2 Adapter
- VAG 1402/6 Adapter set





- Clamp off suction hose using hose clamp -3094-.





- Unbolt -arrows- crankcase breather -1- from bracket -2-.
- Place oil tray under vehicle.





- Remove banjo bolt -1- and hex bolt -2-.
- Set pressure line -3- to side.
- Seal pressure line/hose with a plastic bag or similar.





- Screw adapter -1- from VAG 1402/6 into power steering pump in place of banjo bolt.
- Screw adapter -2- of VAG 1402/6 into adapter -1- from VAG 1402/6.
- Screw hose of pressure gauge VAG 1402 onto adapter -2- of VAG 1 402/6.





- Assemble VAG adapter, banjo bolt and pressure line as shown in diagram.
2. VAG 1402/6
1. VAG 1402/2
3. Four seals
4. Banjo bolt
5. Pressure line
- Remove hose clamp 3094 from suction hose.





Make sure that the lever on the pressure gauge remains in position -2-.
- Start engine and if necessary add fluid to reservoir.
- Turn steering wheel approximately 10 times from lock to lock.
- Now check delivery pressure.

Test prerequisites:
- V-belt/V-belt tension OK.
- System not leaking.
- Hoses/lines are not kinked or restricted.
- With engine running at idling speed. Close cutoff valve (not longer than 5 seconds) and read off pressure.





- Set lever to position -1-.
- Now check delivery pressure.
Specifications 110 - 120 bar