31 11 506 Lowering/raising front axle carrier

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2010 BMW M6, 2010 BMW 650i, 2009 BMW M6, 2009 BMW 650i, and 2008 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 2 030
00 2 040
31 4 012
33 3 274

WARNING: Danger to life!
Secure engine in installation position to prevent it from falling down.

IMPORTANT: Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.
Seal off hydraulic lines with plugs.

Necessary preliminary tasks:

Secure engine in installation position
Remove reinforcement plate
Remove steering gear cover on both sides
Remove lower steering spindle from power steering gear
If necessary, disconnect plug connection on EH converter and expose line up to engine carrier
If necessary, disconnect plug connection on ride-height sensor and expose line up to engine carrier

Version with Dynamic Drive:

Draw off and dispose off hydraulic fluid from fluid reservoir.

Observe country-specific waste-disposal regulations

Remove bottom right wheel arch trim.

Release nut (1) for Dynamic Drive return line.

Tightening torque 37 14 21AZ. See INTEGRATED SUSPENSION SYSTEMS - TIGHTENING TORQUES -- 650I .

Release nut (2) for Dynamic Drive pressure line.

Tightening torque 37 14 13AZ. See INTEGRATED SUSPENSION SYSTEMS - TIGHTENING TORQUES -- 650I .

Release nuts (3) for pressure lines to front axle oscillating motor.

Fig 1: Identifying Nuts For Dynamic Drive Return Line And Pressure Line

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque 37 14 13AZ. See INTEGRATED SUSPENSION SYSTEMS - TIGHTENING TORQUES -- 650I .

Version with active steering:

Disconnect plug connections (1, 2).

Expose wiring harness (3) up to front axle carrier.

Fig 2: Identifying Plug Connections And Wiring Harness

Courtesy of BMW OF NORTH AMERICA, INC.

WARNING: Danger of injury!
Failure to comply with the following instructions may result in the vehicle slipping off the lifting platform and critically injuring other persons.
When supporting components, make sure that

the vehicle can no longer be raised or lowered
the vehicle does not lift off the locating plates on the lifting platform

If necessary, position special tool 00 2 040 with a 2nd person helping on workshop jack 00 2 030.

Insert special tools 31 4 012 into corresponding receptacles of special tool 00 2 040.

Align special tool 00 2 040 to front axle subframe.

NOTE: Make sure when raising that the special tools 31 4 012 are correctly inserted in the rear recesses on the front axle carrier.

Support front axle carrier in rear area by raising special tool 00 2 040.

Position special tool 33 3 274 on floor jack mounting.

Fig 3: Identifying Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Pay attention to power steering hoses and lines when lowering and raising. Hoses/lines must not be kinked/tensioned/bent!

Release screws (1, 2).

Installation:

Check threads for damage; if necessary, repair with Helicoil thread inserts.

Tighten down screws (1) and then screws (2).

Tightening torque 31 10 1AZ. See FRONT AXLE - TIGHTENING TORQUES -- 650I

Lower front axle carrier.

NOTE: If necessary, perform the following work steps if the front axle carrier has to be lowered by more than 10 cm.

Fig 4: Identifying Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Version with Dynamic Drive:

Detach pressure lines from oscillating motor of front axle.

Release screw.

Tightening torque 37 14 14AZ. See INTEGRATED SUSPENSION SYSTEMS - TIGHTENING TORQUES -- 650I .

Move pipe holder towards rear.

Fig 5: Locating Screw

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Version with Dynamic Drive:
- Fill and bleed hydraulic system
- Check pipe connections for leaks
Carry out steering angle sensor adjustment/adjustment for active steering
Carry out initial Dynamic Drive operation