Power Steering Pump: Description and Operation

Power Steering Pump

Vane pump is not designed to be serviced. If there are customer complaints, the cause must be determined using a pressure and leak test. If there is a malfunction, replace the vane pump.

• Always replace seals.

• Do not reuse fluid you have drained.

• If power steering fluid is low in the reservoir, check the steering system for leaks.

• If there are leaks in the area of the line connections, the lines/connections must first be inspected for leaks, tightened as necessary and wiped dry.

• Replacement power steering pumps from the distribution center do not contain any fluid. Before installing, fill pump with hydraulic oil (G 004 000 M2) and turn pump by hand. Otherwise, the power steering pump may be noisy when operating or may even be damaged.

• Oil type: Hydraulic fluid (G 004 000 M2)






1 Bracket

2 Pressure Line

• 32 Nm

3 Seal

• Always replace if removed

4 Intake Hose

• Note power steering pump location: The marking on the intake hose must line up with the marking on the power steering pump.

5 Spring Clamp

• Install on the marking on the intake hose.

6 Power Steering Pump

• Allocation, refer to the Parts Catalog

• Removing and Installing, refer to => [ Vane Pump ] Service and Repair

• Checking delivery pressure, refer to => [ Steering, Checking for Leaks ] Steering, Checking for Leaks

• Fill with oil prior to installation

7 Belt Pulley

8 Bolt

• 22 Nm

9 Bolt

• 22 Nm

• Quantity: 3