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

WARNING: This page is about a different car, the 2007 BMW 550i and 2006 BMW 550i. 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
Partially remove RIGHT UNDERBODY PANELING

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

Tightening torque 37 14 12AZ . See ELECTRICAL COMPONENTS for specs.

Release nut (3) (return line)

Tightening torque 37 14 19AZ . See ELECTRICAL COMPONENTS for specs.

Release nut (4) (pressure line)

Tightening torque 37 14 16AZ . See ELECTRICAL COMPONENTS for specs.

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

Tightening torque 37 14 15AZ . See ELECTRICAL COMPONENTS for specs.

Fig 1: Identifying Nut

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 . See ELECTRICAL COMPONENTS for specs.

Raise valve block and remove towards front.

Fig 2: Identifying Plug Connections, Screws And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect all plug connections (1) on valve block.

Unclip wiring set from valve block.

Fig 3: Identifying Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Fill and bleed HYDRAULIC SYSTEM
Check pipe connections for leaks
If necessary, carry out initial DYNAMIC DRIVE operation