Power Steering Pump Delivery Pressure, Checking

Special tools and workshop equipment required

-- Disconnect the intake hose from the reservoir.

Fig 1: Identifying Hose Clamps

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-- Remove the nuts -arrows- from the return line.

Fig 2: Identifying Power Steering Nuts

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-- Remove the nut -1- and the pressure line from the power steering pump.

Fig 3: Identifying Power Steering Line Bolt

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-- Mount the : VAG1402 and the adapters as illustrated.

Fig 4: Identifying Power Steering Test Unit V.A.G 1402

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-- Remove the : 3094 from the intake hose.

Fig 5: Identifying Hose Clamps

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Make sure the lever on the pressure gauge is in position -1-.

Fig 6: Identifying Lever On Pressure Gauge

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-- Start engine and fill hydraulic fluid in reservoir if necessary.

-- Turn the steering wheel approximately 10 times from stop to stop.

-- Check the delivery pressure.

Test Requirement:

-- Move the shutoff valve lever on the pressure gauge to -2- and read the pressure.

Fig 7: Identifying Pressure Gauge And Shut-Off Valve Lever

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CAUTION:

Let the engine run in idle and close the shutoff valve on the pressure gauge for not longer than 5 seconds (position -2-).

Specification for Delivery Pressure:

96 to 104 bar (1392 to 1508 psi)

-- If specified value is not attained, replace power steering pump. Refer to POWER STEERING PUMP, REMOVING AND INSTALLING .

-- Remove the pressure gauge and adapter.

-- Bleed steering system. Refer to STEERING, BLEEDING AFTER REPLACING .

-- Check hydraulic fluid level and fill, if necessary. Refer to POWER STEERING FLUID LEVEL, CHECKING .

-- Check the steering system for leaks. Refer to STEERING, CHECKING FOR LEAKS .