37 13 130 Removing and installing/replacing underfloor pressure lines for oscillating motor (HA1/HA2)

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. 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 pipe connections with plugs. 32 1 270

Recycling

Catch and dispose of hydraulic fluid in a suitable container.

Necessary preliminary work

Remove RIGHT UNDERBODY PANELLING .
Partially remove front right WHEEL ARCH COVER (rear section).
Remove rear wheel arch cover front section

IMPORTANT: Pressure lines and connections on valve block must be fitted with suitable seal plugs immediately after removal! 32 1 270

Release screws (1) for hydraulic lines on valve block.

Tightening torque 37 13 3AZ .

Fig 1: Identifying Tie Lines Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Note installation position of spacers (1) and (2).
Failure to do so may result in noises/rattling!

Fig 2: Identifying Installation Position Of Spacers

Courtesy of BMW OF NORTH AMERICA, INC.

Open holder (1) and remove pressure lines.

Installation note:

If necessary, replace damaged holders.

Fig 3: Identifying Oscillator Motor Underfloor Pressure Line Holder

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) and (2).

Tightening torque 37 13 12AZ .

Hydraulic lines must be provided with suitable seal plugs 32 1 270 immediately after removal!

Fig 4: Identifying Oscillator Motor Pressure 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 note

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