32 41 037 Removing and installing/replacing power steering pump for power steering gear with Dynamic Drive (N62, N62TU)

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:

Draw off and dispose off hydraulic fluid from fluid reservoir.
Relieve tension on drive belt and remove from power steering pump belt pulley. Refer to 11 28 010 REPLACING ALTERNATOR DRIVE BELT (N62/N62TU) .
Secure engine in installation position. Refer to SECURING ENGINE IN INSTALLATION POSITION WITH SPECIAL TOOL IN INSTALLATION POSITION (N62/N62TU)
Lower front axle support. Refer to FRONT AXLE CARRIER .

Release hose clamp (1) and detach suction line from power steering pump.

Unscrew nut (3).

Tightening torque, (7.5 N.m.).

Release banjo bolt (2) and detach pressure line for Dynamic Drive from power steering pump.

Release banjo bolt (4) and disconnect pressure line for power steering from power steering pump.

Installation:

Replace all sealing rings.

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

Tightening torque, refer to TORQUE SPECIFICATIONS .

Fig 1: Locating Suction Line On Power Steering Pump

Courtesy of BMW OF NORTH AMERICA, INC.

Version with active front steering: : Disconnect connector (1).

Release screw (2).

Tightening torque, refer to TORQUE SPECIFICATIONS .

Fig 2: Identifying Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Variant (A) - build date up to 05/2004:

Release screws (1-2).

Tightening torque, refer to TORQUE SPECIFICATIONS .

Remove power steering pump (3) towards front.

Variant (B) - build date from 05/2004:

Release bolt (1) and nut (2).

Tightening torque, refer to TORQUE SPECIFICATIONS .

Remove power steering pump (3) towards front.

Fig 3: View Of Power Steering Pump Retaining Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

After Installation:

Fill and bleed hydraulic system. Refer to 32 13 006 BLEEDING POWER STEERING UNIT .
Check pipe connections for leaks
Version with active front steering:
- Carry out adjustment for active front steering.
If necessary, carry out initial operation for Dynamic Drive. Refer to INITIALIZING DYNAMIC DRIVE .