32 41 420 Replacing expansion hose part 1 (with ARS) (from vane pump) (with N63 engine)

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.

Special tools required:

32 1 270

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.

Do not draw off hydraulic fluid (risk of contamination).

Close off line connections with seal plug 32 1 270 .

Recycling:

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

IMPORTANT: Pressure line and connections must be provided with suitable seal plugs 32 1 270 immediately after removal!

Necessary preliminary work:

Lower FRONT AXLE SUPPORT .

Release screw connection (1) on power steering pump.

Tightening torque 32 41 6AZ .

Release nut (2) from line clip and remove lines.

Tightening torque 32 41 7AZ .

Fig 1: Identifying Power Steering Pump Screw Connection And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) from line clip.

Tightening torque 32 41 7AZ

Fig 2: Identifying Line Clip Nut

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Release screw connection (1) and remove line in downward direction.

Tightening torque 32 41 11AZ

Fig 3: Identifying Hydraulic Fluid Line, Line Holder And Screw Connection

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT:

When assembling, make sure that in succession only the seal plugs of the line to be fitted are removed.

When fitting lines, do not tilt connectors (sealing rings!) and connect fully before screwing.

Do not replace sealing rings on hydraulic lines.

Replace affected line if sealing ring is damaged.

After installation:

Fill and bleed HYDRAULIC SYSTEM .
Check line connections for tightness.
Carry out INITIAL DYNAMIC DRIVE OPERATION .