32 41 421 Replacing Expansion Hose Part 2 (With ARS) (To The Hydraulic Steering Gear)

WARNING: This page does not describe the selected car, but rather 47 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i 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.

Necessary preliminary work:

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: Screw Connection And Line From Steering Box

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: 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.

After installation:

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