37 20 001 Removing and Installing/Replacing DYNAMIC DRIVE Valve Block

WARNING: This page is about a different car, the 2008 BMW 760Li and 2007 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT:

Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.

Seal off pipe connections with plugs.

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.

Necessary preliminary tasks:

Draw off and dispose off hydraulic fluid from fluid reservoir
Remove bottom right wheel arch trim . See 51 71 ... REMOVING AND INSTALLING/REPLACING FRONT BOTTOM RIGHT WHEEL ARCH TRIM .
Partially remove right underbody panelling . See 51 47 ... REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT UNDERBODY PANELING .

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

Tightening torque 37 14 12AZ . See 37 14 ELECTRIC COMPONENTS .

Release nut (3) (return line)

Tightening torque 37 14 19AZ . See 37 14 ELECTRIC COMPONENTS .

Release nut (4) (pressure line)

Tightening torque 37 14 16AZ . See 37 14 ELECTRIC COMPONENTS .

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

Tightening torque 37 14 15AZ . See 37 14 ELECTRIC COMPONENTS .

Installation:

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

Disconnect plug connections (1, 2).

Remove grounding strap (3) from valve block.

Release screws (4).

Tightening torque 37 14 17AZ . See 37 14 ELECTRIC COMPONENTS .

Raise valve block and remove towards front.

Fig 1: Identifying Dynamic Drive Valve Block Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Identifying Grounding Strap, Plug Connection & Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect all plug connections (1) on valve block.

Unclip wiring set from valve block.

Fig 3: Identifying Valve Block Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Fill and bleed hydraulic system . See 32 13 006 BLEEDING POWER STEERING (VERSION WITH DYNAMIC DRIVE) .
Check pipe connections for leaks
If necessary, carry out initial Dynamic Drive operation . See 37 10 001 INITIAL OPERATION WITH TEST RUN OF DYNAMIC DRIVE