32 41 430 Replacing ARS expansion hose part 1 (from vane pump to expansion hose) N63

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. 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 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 left FRONT WHEEL .
Remove front UNDERBODY PROTECTION .
Remove left steering assembly COVER .
Remove FAN COWL with electric fan.
Release and disengage front ACTIVE STABILIZER BAR .
Remove pressure lines . See 37 13 120 REMOVING AND INSTALLING/RENEWING PRESSURE LINE FOR VA1 SWIVEL MOTOR or 37 13 125 REMOVING AND REFITTING/REPLACING PRESSURE LINE ON SWIVEL MOTOR VA2 from active stabilizer bar.

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

Tightening torque 37 13 10AZ.

Fig 1: Identifying Screw Connection On Power Steering Pump

Courtesy of BMW OF NORTH AMERICA, INC.

Release holder (1) on power steering pump.

Fig 2: Identifying Holder On Power Steering Pump

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Release holder (1).

Fig 3: Identifying ARS Expansion Hose Holder

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw connection (1) on T-piece and remove expansion hose (3) towards top.

Tightening torque 37 13 11AZ.

Fig 4: Identifying ARS Expandable Hose And 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.

After installation

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