32 41 430 Replacing ARS expansion hose part 1 (from vane pump to expansion hose) N74: Notes

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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.
Do not draw off hydraulic fluid (risk of contamination).
Close off pipe connections with plugs. 32 1 270

Recycling:

Catch and dispose of hydraulic fluid in a suitable container.

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

Necessary preliminary tasks:

Remove FAN COWL with electric fan
Installing cross member and LOWERING FRONT AXLE SUPPORT
Release and disengage front ACTIVE STABILIZER BAR
Remove pressure lines from active stabilizer bar. See PRESSURE LINE FOR VA1 SWIVEL MOTOR and PRESSURE LINE ON VA2 SWIVEL MOTOR .

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

Installation:

Replace sealing ring.

Tightening torque 37 13 10AZ .

Fig 1: Identifying Power Steering Pump Screw Connection

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Release holder (1) on power steering pump.

Tightening torque 32 41 16AZ .

Fig 2: Identifying Power Steering Pump Holder Screws

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Release nuts (1) and bolts (2).

Tightening torque 32 41 7AZ .

Fig 3: Identifying Pump Nuts And Bolts

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Release screw (1) on bracket.

Tightening torque, 32 41 12AZ .

Fig 4: Identifying Bracket Screw

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Release screws (1) from line flange in engine compartment.

Remove pressure line.

Installation:

Replace sealing ring.

Tightening torque 37 13 8AZ .

Fig 5: Identifying Line Flange Screws

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: When assembling, make sure that in succession only the sealing 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.