32 41 431 Removing And Installing/Replacing ARS Expansion Hose Part 2 (N57)

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Special tools required:

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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.

Necessary preliminary tasks:

Remove UNDERBODY PROTECTION .
Remove front REINFORCEMENT PLATE .
Partially detach right COVER of wheel arch rear section.
Remove right UNDERBODY PANELLING .

IMPORTANT: Pressure line and connection on valve block must be fitted with suitable seal plugs immediately after removal!

Release screw (1) for pressure line on valve block.

Tightening torque: 37 13 3AZ .

Fig 1: Screw For Pressure Line On Valve Block

Courtesy of BMW OF NORTH AMERICA, INC.

Slacken nuts (1) and (2) on front axle support.

Tightening torque: 37 13 9AZ .

NOTE: Pictures show N63!

Fig 2: Nuts On Front Axle Support

Courtesy of BMW OF NORTH AMERICA, INC.

Release line screw connection (1) in engine compartment and disconnect line.

Tightening torque: 37 13 8AZ .

Remove pipe.

Installation note:

Make sure pressure lines are laid without tension and with sufficient distance to adjoining components.

Fig 3: Line Screw Connection

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 Dynamic Drive INITIAL OPERATION .