Necessary preliminary tasks

• Draw off and dispose of hydraulic fluid from fluid reservoir
• Secure engine in installation position. See N51 ENGINE or N52 ENGINE .
• Remove TIE ROD END ON BOTH SIDES FROM SWIVEL BEARING 
• Replacement only:

  Remove TIE ROD END AT BOTH ENDS OF TIE ROD 

• Lower FRONT AXLE SUPPORT

If necessary, remove heat shield from power steering gear.

Release banjo bolts (1, 4).

Disconnect pressure line (2) and return line (3) from power steering gear.

Remove cooler return line from front axle carrier.

Installation: 

Replace sealing rings.

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

Tightening torque, see 9AZ (pressure line) in 32 41 PUMP AND OIL SUPPLY .

Tightening torque, see 10AZ (return line) in 32 41 PUMP AND OIL SUPPLY .

Fig 1: Identifying Steering Gear Pressure Line, Return Line And Banjo Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

M57T2: 

Disengage vacuum line for engine mount on front axle carrier.

Lower front axle carrier further.

If necessary, release screws (1) and remove heat shield (2).

Tightening torque: see 4AZ in 32 21 STEERING ARMS, TIE RODS, STEERING DAMPER .

Fig 2: Identifying Heat Shield With Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts and remove screws (1) towards bottom.

Remove power steering gear (2) to one side.

Installation: 

Replace screws and self-locking nuts.

Tightening torque: see 1AZ in 32 00 STEERING .

Fig 3: Identifying Power Steering Gear With Screws

Courtesy of BMW OF NORTH AMERICA, INC.