32 13 060 Removing and installing/replacing power steering gear
Secure engine in installation position to prevent it from falling down.
Seal off hydraulic lines with plugs.
Necessary preliminary tasks:
- Disconnect battery negative lead . See THE BATTERY .
- Draw off and dispose off hydraulic fluid from fluid reservoir
- Secure engine in installation position
- Remove tie rod end on both sides from swivel bearing . See 32 21 151 Replacing left or right tie rod .
- Replacement only: Remove tie rod end at both ends of tie rod . See 32 21 151 Replacing left or right tie rod .
- Lower front axle support . See 31 11 001 REPLACING FRONT AXLE CARRIER .
- Remove left mounting bracket or engine mount from front axle carrier . See 11 FRONT SUB-FRAME .
- Engine mount with vacuum connection: Remove right engine mount from front axle carrier . See 11 FRONT SUB-FRAME .
Banjo bolt (A) for pressure line (expansion hose) must be replaced by banjo bolt with non-return valve (B).
If necessary, remove heat shield from power steering gear.
Release banjo bolts (1).
Disconnect pressure line and return line from power steering gear.
Installation:
Replace all sealing rings.
Make sure hydraulic lines are laid without tension and with sufficient spacing to adjoining components.
Tightening torque 32 41 3AZ. See STEERING AND WHEEL ALIGNMENT - TIGHTENING TORQUES .
Release bolt (1).
Release nuts (2) and remove screws towards bottom.
Installation:
Replace screws and self-locking nuts.
Tightening torque 32 00 1AZ. See STEERING AND WHEEL ALIGNMENT - TIGHTENING TORQUES .
Version with active steering:
Disconnect plug connections (1-4).
Raise power steering gear and unclip wiring harness.
Move power steering gear to right and remove towards rear.
After installation:
- Fill And Bleed Hydraulic System . See 32 13 006 Bleeding power steering (version with Dynamic Drive) or 32 13 006 Bleeding power steering unit .
- Check pipe connections for leaks
- Perform chassis alignment check .
- Carry out steering angle sensor adjustment/adjustment for active front steering . See 61 31 996 Carry out steering angle sensor adjustment .
- If necessary, carry out initial Dynamic Drive operation . See 37 10 001 INITIAL OPERATION WITH TEST RUN OF DYNAMIC DRIVE .