32 13 066 Replacing Active Front Steering Hydraulic Steering Gear

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!
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
^ Remove lower section of steering spindle from steering gear
^ 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 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 32 41 5AZ (pressure line).

Tightening torque 32 41 6AZ (return line).





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





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

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

Installation:
Tightening torque 32 00 2AZ.





After installation:
^ Fill and bleed hydraulic system
^ Check pipe connections for leaks
^ Perform chassis alignment check
^ adjustment for active steering
^ If necessary, carry out initial Dynamic Drive operation

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