32 13 066 Replacing active front steering hydraulic steering gear

WARNING: SECURE ENGINE IN INSTALLATION POSITION WITH SPECIAL TOOL to prevent it from falling down.

WARNING: DANGER OF POISONING if oil is ingested/absorbed through the skin!
DANGER OF INJURY if oil comes into contact with eyes and skin!

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

IMPORTANT: If the lower section of the steering shaft is separated from the steering gear/steering column, the steering column switch cluster may be damaged when the steering wheel/steering shaft is twisted!

Necessary preliminary work:

Draw off and dispose of hydraulic fluid from oil reservoir.
Remove TRACK ROD END ON BOTH SIDES FROM SWIVEL BEARING .
Replacement: Remove TRACK ROD END AT BOTH ENDS OF TRACK ROD .
Version with Dynamic Drive: Remove BOTH ANTI-ROLL BAR LINKS FROM ANTI-ROLL BAR .
Remove LOWER SECTION OF STEERING SHAFT FROM STEERING BOX .
Slacken screw connection for WISHBONE AT BOTTOM LEFT AND RIGHT on front axle support.
Lower FRONT AXLE SUPPORT .
Disconnect plug connection for ECO valve on rear side of power steering pump.

Carefully lower hydraulic steering gear.

Mark installation positions of pressure and return lines to hydraulic steering gear.

Release banjo bolts (1).

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

Installation note:

Replace all sealing rings.

Align pressure and return lines by way of marks and tighten down banjo bolts.

Tightening torque 32 41 5AZ (pressure line).

Tightening torque 32 41 6AZ (return line).

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

Courtesy of BMW OF NORTH AMERICA, INC.

Remove hydraulic steering gear with wiring harness sideways between engine and front axle supports.

Fig 2: Identifying Hydraulic Steering Gear With Wiring Harness

Courtesy of BMW OF NORTH AMERICA, INC.

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

Disconnect plug connections (3) and remove connecting line (4).

Installation note:

Tightening torque 32 00 2AZ .

Fig 3: Identifying Heat Shield, Connecting Line, Plug Connections And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Turn steering wheel in both directions to the limit position. The airbag indicator light must not light up in the process.
Fill and bleed hydraulic system . See 32 13 006 BLEEDING POWER STEERING UNIT or 32 13 006 BLEEDING POWER STEERING (VERSION WITH DYNAMIC DRIVE) .
Check line connections for leaks.
Perform chassis/wheel alignment . See 32 00 150 KDS WHEEL ALIGNMENT WITH VEHICLE LOAD UP TO DESIGN POSITION or 32 00 155 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD .
ALIGNMENT FOR ACTIVE STEERING .
If necessary, carry out START-UP DYNAMIC DRIVE OPERATION .