32 41 060 Removing And Installing (Replacing) Vane Pump For Hydraulic Steering (N54/N55)
RISK OF INJURY if oil comes into contact with eyes and skin!
Close off line connections with seal plugs.
Recycling
Catch and dispose of hydraulic fluid in a suitable collecting vessel.
Observe country-specific waste disposal regulations
Necessary preliminary tasks
- Draw off and dispose of hydraulic fluid from oil reservoir
- Remove UNDERBODY PROTECTION
Remove front left charge-air duct . See REPLACING FRONT CHARGE AIR DUCT (N54, N54T) or REMOVING AND INSTALLING/REPLACING FRONT LEFT CHARGE AIR DUCT (N55)
- Remove FAN COWL with electric fan
- Release transmission oil cooler and place to one side (only vehicles with twin-clutch transmission and automatic transmission)
- Remove BELT PULLEY
- Remove LEFT TRACK ROD FROM HYDRAULIC STEERING GEAR
Mark installation position of pressure line (arrow).
Release banjo bolt (1) and disconnect pressure line.
Installation note:
Replace all sealing rings (D).
Replacement only: Carry over marking from used part.
Marks on pressure line and vane pump connection must match up.
Tightening torque 32 41 8AZ .
Release screw (2) using tool (1).
Release screws (1) and remove vane pump towards front.
Installation note:
- Insert screws (1, 2) (do not tighten down)
- Tighten screw (2) to 2 Nm
- Tighten screws (1) to 2 Nm
- Tighten down screws (1)
Tightening torque 32 41 6AZ .
- Release screw (2) and check screw fastening point for gap freedom
- Tighten down screw (2)
Tightening torque 32 41 6AZ .
Release hose clamp (1) and detach intake pipe from vane pump.
Remove vane pump.
Installation note:
Marks (arrow) on intake pipe and vane pump connection must match up.
After installation:
- Fill and bleed HYDRAULIC SYSTEM
- Check line connections for leak tightness