32 13 060 Removing and installing / replacing power steering gear

WARNING: This page is about a different car, the 2005 BMW 545i and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system. Seal off pipe connections with plugs.

Necessary Preliminary Tasks:

Disconnect battery negative lead. Refer to 61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD .
Draw off and dispose off hydraulic fluid from fluid reservoir.
Secure engine in installation position. Refer to SECURING ENGINE IN INSTALLATION POSITION WITH SPECIAL TOOL (N62) .
Remove reinforcement plate.
If necessary, remove steering gear cover on both sides.
Remove lower steering spindle from power steering gear. Refer to 32 31 070 REMOVING AND INSTALLING OR REPLACING LOWER SECTION OF STEERING SPINDLE .
If necessary, disconnect plug connection on EH converter and expose line up to engine carrier.
Replacement only: Remove tie rod end at both ends of tie rod.
If necessary, disconnect plug connection on ride-height sensor and expose line up to engine carrier.
If necessary, unclip vacuum line for engine mount on engine support arm.
Remove tie rod end on both sides from swivel bearing. Refer to 32 21 151 REPLACING LEFT OR RIGHT TIE ROD .
Replacement only:
- Remove tie rod end at both ends of tie rod. Refer to 32 21 151 REPLACING LEFT OR RIGHT TIE ROD .
Lower front axle carrier. Refer to FRONT AXLE CARRIER .

IMPORTANT: Replacement only: Banjo bolt (A) for pressure line must be replaced by banjo bolt with non-return valve (B).

Fig 1: Identifying Banjo Bolt And Non-Return Valve

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Remove left mounting bracket or engine mount from front axle carrier. Refer to 22 11 011 REPLACING LEFT ENGINE MOUNT (N62) .

M57TU / M57T2: Remove right engine mount from front axle carrier.

If necessary, remove heat shield from power steering gear.

Release banjo bolts (1).

Remove hydraulic lines from power steering gear/front axle carrier.

Installation:

Replace sealing rings.

Make sure hydraulic lines are laid without tension and with sufficient spacing to adjoining components.

Tightening torque, refer to TORQUE SPECIFICATIONS .

Fig 2: View Of Hydraulic Lines

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Release screw (1).

Release nuts (2) and remove screws towards bottom.

Installation:

Replace screws and self-locking nuts.

Tightening torque, refer to TORQUE SPECIFICATIONS .

Fig 3: Locating Retaining Screw And Nuts

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Version with active front steering:

Unlock and disconnect plugs (1-4).

Raise power steering gear and unclip wiring harness.

Fig 4: Identifying Plug Connections

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Version with Servotronic:

Disconnect plug connection on EH converter.

Move power steering gear to right and remove towards rear.

After Installation:

Fill and bleed hydraulic system. Refer to 32 13 006 BLEEDING POWER STEERING UNIT .
Check pipe connections for leaks.
Perform chassis alignment check. Refer to 32 00 150 STANDARD CHASSIS / WHEEL ALIGNMENT WITH DIN LOAD and 32 00 155 CHASSIS / WHEEL ALIGNMENT WITHOUT LOAD .
Carry out steering angle sensor adjustment/adjustment for active front steering. Refer to 32 10 005 ADJUSTMENT FOR ACTIVE FRONT STEERING and 61 31 996 CARRY OUT STEERING ANGLE SENSOR ADJUSTMENT .
Version with Dynamic Drive: If necessary, carry out initial Dynamic Drive operation. Refer to INITIALIZING DYNAMIC DRIVE .