32 41 311 Replacing intake pipe for hydraulic steering (N55)

WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750Li xDrive, and 2015 BMW 740Li xDrive. 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 line connections with seal plugs.

Recycling:

Catch and dispose of hydraulic fluid in a suitable expansion tank.

Necessary preliminary tasks:

Draw off and dispose of hydraulic fluid from oil reservoir
Remove front UNDERBODY PROTECTION
Remove REAR LEFT CHARGE-AIR DUCT

Detach OIL RESERVOIR from console/body.

Unfasten hose clamp (1).

Detach intake pipe from fluid reservoir.

Installation note:

Marks on fluid reservoir and intake pipe must match up.

Replace hose clamp.

Fig 1: Identifying Oil Reservoir And Hose Clamp

Courtesy of BMW OF NORTH AMERICA, INC.

Expose intake pipe up to connection on power steering pump.

Release hose clamp (1) and detach suction line from power steering pump.

Installation note:

Replace hose clamp.

Make sure hydraulic lines are laid without tension and with sufficient distance to adjoining components.

Align suction line by way of marking (2) to power steering pump connection marking.

Fig 2: Identifying Hose Clamp And Suction Line Marking

Courtesy of BMW OF NORTH AMERICA, INC.

After installation

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