Skoda Workshop Service and Repair Manuals

Check the feed pressure of the vane pump Special tools and workshop equipment required t  Hose clamps -MP7-602 (3094)- t  Power-assisted steering testing device, e. g. -V.A.G 1402- t  Adapter, e.°g. -V.A.G 1402/3 - t  Adapter set, e.g. -V.A.G 1402/6- –  Remove engine cover → Engine; Rep. Gr.10 –  Remove the reservoir cover for the power-assisted steering.

–  Disconnect the suction line and the return flow line from hose clamps -MP7-602 (3094)-. –  Remove the sound dampening system → Body Work; Rep. Gr.50. –  Place the oil catching pan under the vehicle.

–  Unscrew the hollow screw -1- and lay the pressure line to the side.

–  Screw the adapter, e.g. -V.A.G 1402/3-, into the vane pump in place of the hollow screw. –  Screw the hose of the power-assisted steering testing device, e. g. -V.A.G 1402-, onto the adapter, e.g. -V.A.G 1402/3-. –  Connect the hose from the adapter set, e.g. -V.A.G 1402/6-, to the power-assisted steering testing device and screw up the pressure line with the hollow screw. –  Remove hose clamps -MP7-602 (3094)-.

–  Make sure that the lever on the manometer is in position -2-. –  Start the engine and replenish the hydraulic oil level in the reservoir if so required. –  Turn steering wheel 10 x from stop to stop. –  Now check the feed pressure. Test conditions: l  V-ribbed belt and belt tension OK. l  Tightness of the system l  Hoses/lines are not buckled up or tangled up.

–  With the engine running at idling speed, place the shut-of valve to position -1- (for not longer than 5 seconds) and read the pressure.

Nominal value overpressure
MPa	bar
11…12	110…120

Note The vane pump must be replaced if the nominal value is not attained → Chapter –  Checking hydraulic oil level → Chapter –  Checking the steering system for tightness → Chapter –  Bleeding air from the steering gear → Chapter