37 13 125 Removing and refitting/replacing pressure line on swivel motor VA2 (640i xdr, 650ix)

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Special tools required:

32 1 270

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 work:

Remove front right wheel arch cover . See 51 71 038 REMOVING AND INSTALLING/REPLACING FRONT LEFT OR RIGHT WHEEL ARCH COVER (FRONT SECTION) and 51 71 039 REMOVING AND INSTALLING/REPLACING FRONT LEFT OR RIGHT WHEEL ARCH COVER (REAR SECTION) .
LOWER FRONT AXLE

IMPORTANT: Pressure line and connection on valve block must be fitted with suitable seal plugs 32 1 270 immediately after removal.

Unfasten screw connection (1).

Tightening torque 37 13 5AZ .

Fig 1: Identifying Pressure Line Screw Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) from line clip on front axle support and remove clip.

Tightening torque 37 13 7AZ .

Fig 2: Identifying Front Axle Support Screws

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Release screw (2).

Remove pipe.

Tightening torque 37 13 4AZ .

Fig 3: Identifying Pressure Lines Screws

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 pipe connections for leaks
Carry out initial Dynamic Drive operation. See 37 10 001 INITIAL OPERATION WITH TEST RUN OF DYNAMIC DRIVE or 37 10 001 START-UP WITH TEST RUN OF DYNAMIC DRIVE (EPS STEERING GEAR) .