Power steering pump delivery pressure, checking

WARNING: This page is about a different variant/trim than selected.

Fig 1: Identifying Special Tools - Power Steering Pump Delivery Pressure, Checking

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Special tools, testers and auxiliary items required

Hose Clamps Up to 25 mm dia. 3094
Power Steering Test Unit V.A.G 1402
Adapter V.A.G 1402/2
Adapter V.A.G 1402/3

Adapter V.A.G 1402/4
Adapter Hose V.A.G 1402/6

Special tools, testers and auxiliary items required

Fig 2: Identifying Assembly Tool VAS 5024

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Spring type clip pliers VAS 5024 A

Fig 3: Hydraulic Fitting-110 Degree V.A.G 1402/1A

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Hydraulic Fitting-110 Degree V.A.G 1402/1A

Vehicles with low mounted power steering pump

Fig 4: Hose From Reservoir Clamped Using Hose Clamps

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Clamp return hose with Hose Clamps, Up to 40 mm. 3093.
Remove noise insulation tray.

Fig 5: Power Steering Pump Hose Clamped Using Hose Clamps

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Clamp intake hose with Hose Clamps Up to 25 mm dia. 3094.
Place oil pan under vehicle.
Remove pressure line at the pump.
Disconnect connector from pressure switch if necessary.

Fig 6: Identifying V.A.G 1402/1 And Adapter Hose V.A.G 1402/6

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Install adapter - 1 -.

Use a sealing ring.

1 - V.A.G 1402/1

2 - Adapter Hose V.A.G 1402/6

Fig 7: Identifying Adapter Hose V.A.G 1402/6 Components Installed

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Hose from Power Steering Test Unit V.A.G 1402

A - Pressure switch, 1.8 ltr. gasoline engines only

1 - Power Steering Test Unit V.A.G 1402

2 - Adapter Hose V.A.G 1402/6

3 - Banjo bolt

4 - Pressure hose banjo union

5 - V.A.G 1402/2

6 - Power Steering Test Unit V.A.G 1402

Hose Clamps Up to 25 mm dia. 3094 from intake and return hoses.
Start engine and if necessary add fluid to reservoir.
Turn the steering wheel from lock to lock about 10 times.
Now check delivery pressure.

Test requirements:

V-belt/V-belt tension OK
System has no leaks
Hoses/lines not kinked or restricted

With engine running at idling speed. Close cutoff valve (not longer than 5 seconds) and read off pressure.

Specifications

Gasoline engines: 85...95 bar
Diesel engines: 96..0.105 bar

NOTE:

If the reading is higher or lower than specified replace pump:
Removing and installing P.A.S. power steering pump, vehicles with low mounted power steering pump → P.A.S. power steering pump, vehicles with low mounted power steering pump, removing and installing and → P.A.S. power steering pump, vehicles with high mounted power steering pump, removing and installing .
If the fluid level in the reservoir is low, the steering system must be inspected for leaks.
For leaks at the pinion first check the lines/line connections for leaks and if necessary tighten and wipe dry.

If the pinion seal or the rack seals in steering transmission housing are leaking then replace steering transmission.
To check the rack seals loosen the hose clip on the boot and push boot to one side.

Vehicles with high mounted power steering pump

Fig 8: Engine Cover And Bolts

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove engine cover.

Fig 9: Return Hose Clamped With Hose Clamps

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Clamp return hose with Hose Clamps Up to 25mm dia. 3094.

Fig 10: Intake Hose Clamped With Hose Clamps

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Clamp intake hose with Hose Clamps Up to 25 mm dia. 3094.
Place oil pan under vehicle.
Remove pressure line at the pump.

Connect Power Steering Test Unit V.A.G 1402

Fig 11: Power Steering Test Unit V.A.G 1402 Connected

Courtesy of VOLKSWAGEN UNITED STATES, INC.

1 - Power Steering Test Unit V.A.G 1402

2 - Power Steering Test Unit V.A.G 1402

3 - Adapter Hose V.A.G 1402/6

4 - Adapter V.A.G 1402/4

5 - Sealing rings

Two pieces

6 - Adapter V.A.G 1402/2

7 - Pressure line with banjo fitting

8 - Banjo bolt

Hose Clamps Up to 25 mm dia. 3094 from intake and return hoses.
Start engine and if necessary add fluid to reservoir.
Turn the steering wheel from lock to lock about 10 times.
Now check delivery pressure.

Test requirements:

V-belt/V-belt tension OK
System has no leaks
Hoses/lines not kinked or restricted

With engine running at idling speed. Close cutoff valve (not longer than 5 seconds) and read off pressure.

Specifications

Gasoline engines: 85 to 95 bar
Diesel engines: 96..0.105 bar

NOTE:

If the reading is higher or lower than specified replace pump:
Removing and installing P.A.S. power steering pump, vehicles with high mounted power steering pump → P.A.S. power steering pump, vehicles with high mounted power steering pump, removing and installing and → P.A.S. power steering pump, vehicles with high mounted power steering pump, removing and installing .
If the fluid level in the reservoir is low, the steering system must be inspected for leaks.
For leaks at the pinion first check the lines/line connections for leaks and if necessary tighten and wipe dry.
If the pinion seal or the rack seals in steering transmission housing are leaking then replace steering transmission.
To check the rack seals loosen the hose clip on the boot and push boot to one side.