37 13 ... Removing and installing/replacing pressure lines (front) for oscillating motor/front axle

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Danger of poisoning if oil is ingested/absorbed through the skin! Risk of injury if oil comes into contact with eyes and skin! Scalding hazard! This work may only be carried out on an exhaust system which has cooled down.

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

Necessary preliminary tasks:

Remove front wheels
Remove front underbody protection. See 51 47 491 REMOVING AND INSTALLING/REPLACING REAR UNDERBODY PROTECTION .
Remove right wheel arch cover. See 51 71 039 REMOVING AND INSTALLING/REPLACING FRONT LEFT OR RIGHT WHEEL ARCH COVER (REAR SECTION) .
Remove steering gear cover at top right
Remove radiator air duct. See 51 71 099 REMOVING AND INSTALLING/REPLACING RADIATOR AIR GUIDE .
Remove both brake air ducts with holder
Remove fan cowl. See 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN (N52K) .
Remove heat exchanger from front axle carrier and tie up . See 17 22 010 REMOVING AND INSTALLING/REPLACING HEAT EXCHANGER FOR AUTOMATIC TRANSMISSION (N52K) .

Remove radiator box from engine carrier, extend out, press upwards and support with workshop jack. Installation: Check rubber mounting of radiator box for correct seating.

Fig 1: Remove Radiator Box From Engine Carrier

IMPORTANT:

Risk of damage!

First adjust minimum distance (A) = 3 mm between pressure line (1) and oscillating motor (2).

-> M57T0p/ N52/ N54/ N62:

Then adjust pressure line (3) with minimum distance (B) = 8 mm to pressure line (1).

-> N63/ S63:

Then adjust pressure line (3) with minimum distance (B) = 5 mm to pressure line (1).

Fig 2: Adjusting Minimum Distance Between Pressure Line And Oscillating Motor

Mark installation position of pressure lines to oscillating motor. Release banjo bolts (1) and remove pressure lines (2) from oscillating motor. Seal pressure lines (2) and connections of oscillating motor with suitable sealing plugs.

Fig 3: Release Banjo Bolts (1) And Remove Pressure Lines (2) From Oscillating Motor

Installation: Carry over identification to new component. Pressure lines are protected against being mixed up by different thread diameters on the oscillating motor connection. Tightening torque, see 37 14 18AZ in 37 14 ELECTRIC COMPONENTS .

Release screws (1). Tightening torque, see 37 14 20AZ in 37 14 ELECTRIC COMPONENTS .

Fig 4: Release Screws (1)

IMPORTANT:

To remove the risk of mix-up after removal of the pressure lines at the holders, observe the following:

Holder, direction of travel, left: Stud bolt (1) arranged virtually centrally on the holder

Holder, direction of travel, right: Stud bolt (1) arranged off-centre to the front of the holder

Align holders as pictured by way of additional lugs (2); both lugs point in direction of travel to right

Fig 5: Align Holders By Way Of Additional Lugs (2)

If necessary, remove line holder (1). Installation: Check seating of line holder, correct if necessary.

Fig 6: Removing Line Holder (1)

Release screw (1) and unclip holder lower section (2) with decoupler. Installation: Replace damaged lower section. Tightening torque, see 37 14 25AZ in 37 14 ELECTRIC COMPONENTS .

Fig 7: Release Screw (1) And Unclip Holder Lower Section (2) With Decoupler (1 Of 2)

Release screw (1) and unclip holder lower section (2) with decoupler. Installation: Replace damaged lower section. Tightening torque, see 37 14 25AZ in 37 14 ELECTRIC COMPONENTS .

Fig 8: Release Screw (1) And Unclip Holder Lower Section (2) With Decoupler (2 Of 2)

For vehicles with production date up to 10/2008: Release banjo bolts (1). Seal pressure lines with suitable sealing plugs. Remove pressure lines. Installation: Pressure lines are protected against being mixed up by different thread diameters. Hydraulic lines are not permitted to contact each other or adjoining components. Tightening torque, see 37 14 15AZ in 37 14 ELECTRIC COMPONENTS .

Fig 9: Releasing Banjo Bolts (1)

For vehicles with production date from 10/2008: Release screws (1) and (2) of block screw connections. Seal pressure lines with suitable sealing plugs. Remove pressure lines. Tightening torque, see 37 14 27AZ in 37 14 ELECTRIC COMPONENTS .

Fig 10: Release Screws (1) And (2) Of Block Screw Connections

After installation:

Fill and bleed hydraulic system. See 32 13 006 BLEEDING POWER STEERING (VERSION WITH DYNAMIC DRIVE) .
Check pipe connections for leaks.
Carry out initial DYNAMIC DRIVE operation.