37 20 001 Removing and installing/replacing DYNAMIC DRIVE valve block

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 535xi, 2010 BMW 535i, 2009 BMW 535xi, 2009 BMW 535i, and 2008 BMW 535xi. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: In a warranty case you must always provide a fault memory printout, even where there is no fault memory entry, with the defective part. In addition, the valve block openings must be sealed with the protective caps (of the new part).

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.
Close off pipe connections with plugs.

Recycling:

Catch and dispose of hydraulic fluid in a suitable container.

Observe country-specific waste-disposal regulations

Necessary preliminary tasks:

Draw off and dispose of hydraulic fluid from fluid reservoir
Remove BOTTOM RIGHT WHEEL ARCH TRIM
Partially remove RIGHT UNDERBODY PANELING

Release nuts (1, 2) (pressure lines to rear axle oscillating motor).

Tightening torque 37 14 12AZ .

Release nut (3) (return line)

Tightening torque 37 14 19AZ .

Release nut (4) (pressure line)

Tightening torque 37 14 16AZ .

Release nuts (5, 6) (pressure lines to front axle oscillating motor).

Tightening torque 37 14 15AZ .

Fig 1: Identifying Pressure Line And Return Line Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Make sure hydraulic lines are laid without tension and with sufficient spacing to adjoining components.

Partially detach FRONT RIGHT WHEEL ARCH TRIM .

Disconnect plug connections (1, 2).

Remove grounding strap from valve block.

Release screws (3).

Tightening torque 37 14 17AZ .

Raise valve block and remove towards front.

Fig 2: Identifying Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Make sure hydraulic lines are laid without tension and with sufficient spacing to adjoining components.

When assembling, make sure that only the sealing plugs of the line to be fitted are removed.

Do not damage sealing surfaces of hydraulic lines.

After installation:

Fill and bleed HYDRAULIC SYSTEM .
Check pipe connections for leaks
If necessary, carry out INITIAL DYNAMIC DRIVE OPERATION