32 41 250 Removing and installing/replacing oil reservoir for power steering (vehicles with N54 or N55 engine)

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2015 BMW 750i, 2015 BMW 750Li, and 2015 BMW 740i. However, it is still accessible from the selected car via links, so may be relevant.

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 hydraulic lines with plugs.

Necessary preliminary tasks:

Draw off and dispose of hydraulic fluid from fluid 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 Screws On Wheel Arch And Expansion Tank

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 clip (2).

Installation:

Replace hose clamp.

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

Fig 2: Identifying Radiator Return Line Hose Clamp, Clip And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect suction line and radiator return line from fluid reservoir.

Lift out fluid reservoir.

Replacement:

If necessary, modify LEVEL SWITCH .

After installation:

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

Vehicles with Dynamic Drive:

If necessary, carry out INITIAL DYNAMIC DRIVE OPERATION