Volkswagen Workshop Service and Repair Manuals

Pump faults

=> Fault finding No. 10 Running gear

• ‒ Disconnect pump pressure pipe.

• ‒ → Install adapter and test equipment. Cut-off valve on gauge open.
• ‒ Start engine and if necessary add fluid to reservoir.

•     A -    V.A.G 1402/2
•     B -    V.A.G 1402/1
•     C -    Hose from adapter kit 1402/6
•     D -    V.A.G 1402

Conditions for performing check

• ● V-belt/V-belt tension OK.
• ● System not leaking.
• ● Hoses/pipes are not kinked or restricted.

• ‒ With engine running at idling speed. Close cut-off valve (not longer than 5 seconds) and read off pressure.
• ‒ Specification: 85 ... 95 bar

Notes:

• ◆ If the reading is higher or lower than specified renew pump:
• ◆ Removing and installing power assisted steering vane pump. Vehicles with 1.8 ltr., 1.9 ltr., 2.0 ltr. engine=>Page 48-123.
• ◆ Vehicles with 128 kW engine=>Page48-132.
• ◆ If reservoir fluid level is low then check steering system for leaks.
• ◆ For leaks at the pinion first check the pipes/pipe connections for leaks and if necessary tighten and wipe dry.
• ◆ The steering box can be serviced if the pinion seal or the rack seals in steering box housing are leaking.
• ◆ To check the rack seals loosen the hose clip on the bellows and push bellows to one side.