32 41 250 Removing and installing/replacing fluid reservoir for hydraulic steering (AWD with N55 engine)

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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.
Seal off hydraulic lines with seal plugs.

Necessary preliminary tasks

Draw off and dispose of hydraulic fluid from oil reservoir
Remove front left SUSPENSION CROSS-BRACE

Release screws (1) on wheel arch and screw (2) on expansion tank.

Remove washers.

Tightening torque 32 41 1AZ/2AZ .

Fig 1: Identifying Wheel Arch And Expansion Tank Screws

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Raise and/or turn fluid reservoir in order to gain better access to plug connection and hoses.

Release hose clamp (1) from radiator return line.

Tightening torque 32 41 3AZ .

Unfasten hose clamp (2).

Installation note:

Replace hose clamp.

Fig 2: Identifying Hose Clamps And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

If necessary, disconnect plug connection (3) from oil level sensor

Disconnect intake pipe and radiator return line from fluid reservoir.

Lift out oil reservoir.

Replacement

If necessary, modify LEVEL SWITCH .

After installation

Fill and bleed hydraulic system. See BLEEDING POWER STEERING UNIT or BLEEDING POWER STEERING (VERSION WITH DYNAMIC DRIVE) .
Check pipe connections for leaks

Version with Dynamic Drive:

If necessary, carry out START-UP DYNAMIC DRIVE OPERATION