32 13 066 Replacing active front steering hydraulic steering gear

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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! Risk 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 pipe connections with plugs.

Necessary preliminary tasks:

Draw off and dispose of hydraulic fluid from fluid 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. See 31 35 005 REMOVING AND INSTALLING/REPLACING PUSH ROD (STABILIZER LINK) FOR LEFT/RIGHT STABILIZER .
Remove lower section of steering spindle from steering gear
Slacken screw connection for wishbone at bottom left and right on front axle support. See 31 12 004 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT LOWER CONTROL ARM .
Lower front axle support
Disconnect plug connection for Eco valve on back 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: Replace all sealing rings. Align pressure and return lines by way of markings and tighten down banjo bolts. Tightening torque, see 32 41 5AZ (pressure line) in 32 41 PUMP AND OIL SUPPLY . Tightening torque, see 32 41 6AZ (return line) in 32 41 PUMP AND OIL SUPPLY .

Fig 1: Disconnect Pressure Line (2) And Return Line (3) From Hydraulic Steering Gear

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 2: Remove Power Steering Gear With Wiring Harness Sideways Between Engine And Front Axle Supports

Courtesy of BMW OF NORTH AMERICA, INC.

If necessary, release screws (1) and remove heat shield (2). Disconnect plug connections (3) and remove connecting cable (4). Installation: Tightening torque, see 32 00 2AZ in 32 00 STEERING .

Fig 3: If Necessary, Release Screws (1) And Remove Heat Shield (2)

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
Check pipe connections for leaks
Perform chassis / wheel alignment. See ALIGNMENT CHECK WITH LOAD UP TO DESIGN POSITION or ALIGNMENT CHECK WITH RIDE-HEIGHT MEASUREMENT WITHOUT LOAD .
Perform ALIGNMENT FOR ACTIVE STEERING .
If necessary, carry out INITIAL DYNAMIC DRIVE OPERATION .