Power Steering Pump, Hydraulic Pipes And Reservoir Overview

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.

NOTE:

If power steering fluid is low in reservoir, check 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.

Pump is delivered without oil. Therefore, Hydraulic Oil must be filled before installation and turned by hand. Otherwise, noises when driving or damage to pump may occur.

Fig 1: Identifying Power Steering Pump, Hydraulic Pipes And Reservoir Overview

Courtesy of AUDI OF AMERICA, LLC

Power-Assisted Steering Gear
- Allocation, refer to parts.
Wiring Bracket
Clamp
Bolt
- 9 Nm
Intake Hose
- Note location on reservoir, refer to Figure.
- Installed position on the power steering pump on a V6 TDI engine, generation I without SCR, refer to Figure.
- Installed position on the power steering pump on a V6 TDI engine, generation I with SCR and on a V6 TDI engine, generation, refer to -item 12- Marking.
- Attach to body, refer to LINES AND HOSES OVERVIEW .
Spring Clamp
- Remove and install with Hose Clip Pliers VAS5024A.
Power Steering Pump
- For the correct allocation, refer to parts.
- Fill with Hydraulic Oil before installing.
- Removing and Installing, refer to POWER STEERING PUMP, REMOVING AND INSTALLING .
- Check the delivery pressure, V6 TDI, generation I without SCR, refer to POWER STEERING PUMP DELIVERY PRESSURE, GENERATION I WITHOUT SCR, CHECKING .
Bolt
- Tightening specification, refer to POWER STEERING PUMP, REMOVING AND INSTALLING .
Seal
- Always replace.
Banjo Bolt
- 35 Nm
Bracket
Bolt
- M6: 9 Nm
- M8: 22 Nm
Power Steering Pump
- For the correct allocation, refer to parts.
- Fill with Hydraulic Oil before installing.
- Check the delivery pressure on a V6 TDI engine, generation I with SCR and on a V6 TDI engine, generation II, refer to POWER STEERING PUMP DELIVERY PRESSURE, GENERATION I WITH SCR AND GENERATION II, CHECKING .
- Removing and Installing, refer to POWER STEERING PUMP, REMOVING AND INSTALLING .
Bolt
- 9 Nm
Pressure Line
- Installed on a V6 TDI engine, generation I with SCR and on a V6 TDI engine, generation II.
- Insert completely when installing.
O-Ring
- Always replace.
Pressure Line
- Installed V6 TDI, generation I without SCR.
- Tighten the union nut to 32 Nm.
- Note power steering pump location, refer to Figure.
- Attach to body, refer to LINES AND HOSES OVERVIEW .
Bracket
Wiring Bracket
Bolt
- 9 Nm
Bolt
- 8 Nm
Bracket
Return Line
- From the hydraulic oil cooler to the reservoir.
Cap with Dip Stick
- Check hydraulic fluid level POWER STEERING, CHECKING HYDRAULIC OIL LEVEL .
Reservoir
Bracket
- For reservoir.
Pressure Line
- Tighten the union nut to 32 Nm.
- Attach to body, refer to LINES AND HOSES OVERVIEW .
Bolt
- 9 Nm
Return Line
- Tighten the union nut to 32 Nm.
- Note location on hydraulic oil cooler, refer to LINES AND HOSES OVERVIEW .
- Secure, refer to LINES AND HOSES OVERVIEW .
Clip
Clamp
- Always replace.
- Close using Hose Clip Pliers VAG1275A.
Bolt
- 9 Nm
Bracket
- With washer and rivet.
- For hydraulic oil cooler on condenser.
- Clip lines from hydraulic oil cooler in bracket.
Bracket
- With washer and rivet.
- For hydraulic oil cooler on condenser.
- Insert hydraulic oil cooler in bracket.
Hydraulic Oil Cooler
- Removing and Installing, refer to HYDRAULIC FLUID COOLER, REMOVING AND INSTALLING .
Wiring Bracket
O-Ring
- Always replace.