32 41 430 Replacing ARS expandable hose part 1 (from vane pump to expandable hose) N63: Notes

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. 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!
DANGER 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 collecting vessel.

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

Necessary preliminary tasks:

Remove FAN COWL with electric fan
Remove front UNDERBODY PROTECTION
Remove left steering assembly COVER
Remove FRONT ACTIVE STABILIZER
LOWER FRONT AXLE

Release screw connection (1) on power steering pump and detach lines.

Tightening torque 37 13 10AZ .

Fig 1: Identifying Power Steering Pump Screw Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Release holder (1) on power steering pump.

Tightening torque 32 41 14AZ .

Fig 2: Identifying Power Steering Pump Holder

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Only vehicles with N63 before model year 07/2012:

Release screw connection (1) from silencer.

Tightening torque 37 13 13AZ .

Release screw connection (2) from holder.

Remove silencer.

Fig 3: Identifying Holder And Silencer Screw Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Release holder (1).

Fig 4: Identifying Holder

Courtesy of BMW OF NORTH AMERICA, INC.

Release block screw connection (1) and pull off line.

Tightening torque 37 13 8AZ .

Release holder (1).

Tightening torque 37 13 7AZ .

Fig 5: Identifying Line Screw Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Feed out pressure line downwards!

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.