32 13 060 Removing And Installing/Replacing Hydraulic Steering Gear (AWD)
Secure engine in installation position . See SECURING ENGINE IN INSTALLATION POSITION (N55) or SECURING ENGINE IN INSTALLATION POSITION (N54, N54T) to prevent it from falling down.
Seal off hydraulic lines with seal plugs.
Necessary preliminary work
- Draw off and dispose of hydraulic fluid from oil reservoir
- Secure engine in installation position . See SECURING ENGINE IN INSTALLATION POSITION (N55) or SECURING ENGINE IN INSTALLATION POSITION (N54, N54T) .
- Remove TRACK ROD END ON BOTH SIDES FROM SWIVEL BEARING
- Replacement only: Remove TRACK ROD END AT BOTH ENDS OF TRACK ROD
- Lower FRONT AXLE SUPPORT
If necessary, remove heat shield from hydraulic steering gear.
Release banjo bolts (1, 4).
Disconnect pressure line (2) and return line (3) from hydraulic steering gear.
Remove radiator return hose from front axle support.
Installation note:
Replace sealing rings.
Make sure hydraulic lines are laid without tension and with sufficient distance to adjoining components.
Tightening torque 32 41 9AZ (pressure line).
Tightening torque 32 41 10AZ (return line).
M57T2:
If necessary, detach vacuum line for engine mount on front axle support.
Lower front axle support further.
If necessary, release screws (1) and remove heat shield (2).
Tightening torque 32 21 4AZ .
Release nuts and remove screws (1) towards bottom.
Remove hydraulic steering gear (2) to one side.
Installation note:
Replace screws and self-locking nuts.
Tightening torque 32 00 1AZ .
After installation:
- Turn steering wheel in both directions to the limit position. The airbag indicator lamp must not light up in the process.
- Fill and bleed HYDRAULIC SYSTEM
- Check line connections for leaks
- Perform chassis/wheel alignment check . See 32 00 150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION or 32 00 155 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD
- Carry out STEERING ANGLE SENSOR ADJUSTMENT