32 41 431 Removing and installing/replacing ARS expansion hose part 2 (AWD with N63 engine)

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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 collecting vessel.

Necessary preliminary work

Remove UNDERBODY PROTECTION
Remove front REINFORCEMENT PLATE
Partially detach front 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: Identifying Pressure Line Screws

Courtesy of BMW OF NORTH AMERICA, INC.

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

Tightening torque 37 13 9AZ .

Fig 2: Identifying Front Axle Support Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

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

Tightening torque, 37 13 8AZ

Remove line towards front.

Installation note:

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

Fig 3: Identifying 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