BMW X5: Removing And Installing/Replacing Dynamic Drive Valve Block

Special tools required:

• 13 5 020
• 37 1 151
• 37 1 152

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.

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).

Necessary preliminary tasks:

• Draw off and dispose of hydraulic fluid from fluid reservoir.
• Partially remove front right wheel arch cover (rear section).
• Remove right underbody panelling.

Removing valve block:

Disconnect plug connections (1) and expose wiring harness up to valve block.

Fig. 78: Identifying Plug Connections

Release screw pins (1), open holder and suspend hydraulic lines to one side.

Fig. 79: Identifying Screw Pins

Open holder (1) and remove control lines to rear axle oscillating motor.

Fig. 80: Identifying Control Lines And Holder

IMPORTANT: Hydraulic line and connection on valve block must be fitted with suitable sealing plugs immediately after removal!

Release hollow nuts of control lines (1, 2) to front axle oscillating motor with special tool 37 1 151.

Release hollow nuts of control lines (3, 4) to rear axle oscillating motor with special tool 37 1 151.

Release hollow nut of pressure line (5) with special tool 13 5 020.

Release hollow nut of return line (6) with special tool 37 1 152.

Fig. 81: Identifying Hollow Nut Of Return Line

Unclip wiring harness (1).

Release nuts (2) and remove valve block.

Fig. 82: Identifying Wiring Harness And Nuts

Installing valve block:

Replace self-locking nuts.

Mount valve block with nuts (2) on body.

Tightening torque 37 14 10AZ.

Secure wiring harness (1) to valve block holder.

Fig. 83: Identifying Wiring Harness And Nuts

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

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

Installation sequence for hydraulic lines:

1. Install control lines (3, 4)
   Tightening torque 35 N.m.
2. Install pressure line (5)
   Tightening torque 35 N.m.
3. Install return line (6)
   Tightening torque 35 N.m.
4. Install control lines (1, 2)
   Tightening torque 35 N.m.

Fig. 84: Identifying Hollow Nut Of Return Line

Check seating and position of line holder (1), correct if necessary.

Fig. 85: Identifying Line Holder

Replace screw pins (1).

Insert hydraulic lines in holder and seal holder with screw pins (1).

Tightening torque 35 N.m.

Fig. 86: Identifying Screw Pins

Insert control lines in holder (1) and seal holder.

NOTE: Replace damaged holder.

Fig. 87: Identifying Control Lines And Holder

Connect plug connections (1) and lay wiring harness up to valve block.

Fig. 88: Identifying Plug Connections

After installation:

• Fill and bleed hydraulic system.
• Check pipe connections for leaks.
• Carry out initial Dynamic Drive operation.

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