32 41 421 Replacing expansion hose part 2 (with ARS) (to the hydraulic steering gear): Notes

WARNING: This page is about a different car, the 2011 BMW 750xi and 2010 BMW 750xi. 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.

Necessary preliminary tasks:

Remove front UNDERBODY PROTECTION
Remove front REINFORCEMENT PLATE
Remove left steering assembly COVER

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

Release screw connection (1) on the steering box.

Tightening torque 32 41 5AZ .

Detach line (2) from steering box.

Fig 1: Identifying Steering Box Screw Connection And Line

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) from line flange.

Tightening torque 32 41 11AZ

Release holder (2) and remove line towards the front.

Tightening torque 32 41 7AZ.

Fig 2: Identifying Line Flange Screw Connection And Holder

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.