31 11 506 Lowering/raising front axle support (universal lifter)

WARNING: This page is about a different variant/trim than selected.

Special tools required:

00 2 030
31 5 251
31 5 253
31 5 255

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 vehicle hoist

IMPORTANT:

Before lowering/removing front axle support:

Observe SAFETY INFORMATION for raising the vehicle

In order to avoid damage to vehicle hoist, perform weight compensation on vehicle.

Load spring strut domes with sand bags.

Necessary preliminary tasks:

Remove FRONT WHEELS
Remove COMPLETE EXHAUST SYSTEM
Remove BUMPER TRIM
Remove WHEEL ARCH COVER ON BUMPER BRACKETS ON LEFT AND RIGHT
Only on left side at ride height sensor: Release PLUG CONNECTION AT SENSOR and move back cable.

IMPORTANT: If the steering shaft is separated from the steering gear, this can result in damage to the steering column switch cluster when the steering wheel is turned!

Release screw (1).

Detach lower section of steering shaft (2) from steering gear and swing towards rear.

Installation note:

Clean thread to remove all remnants of screw securing adhesive.

Replace screw.

Fig 1: Detaching Lower Section Of Steering Shaft From Steering Gear

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque 32 31 2AZ

IMPORTANT: Make sure when lowering the front axle that the lines are not damaged.

Disconnect plug connections (1) on steering gear.

Fig 2: Identifying Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Make sure when lowering the front axle that the lead of the pulse generator is not damaged.

Disengage lead (1) of pulse generator on left and right from holder on front axle support.

Fig 3: Identifying Lead Of Pulse Generator

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Release screws (1) and remove anti-roll bar link (2).

Installation note:

First mount front axle support on engine support and then tighten down screws (1).

Tightening torque 22 11 6AZ

Fig 4: Identifying Anti-Roll Bar Link Screws

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Release screws (1) on bumper holder on left.

Installation note:

Tightening torque 51 11 4AZ

Fig 5: Identifying Bumper Holder Screws

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Release screws (1) on bumper holder on right.

Installation note:

Tightening torque 51 11 4AZ

IMPORTANT: Make sure when lowering the front axle that the line is not damaged.

Unclip cable holder (2).

Cut open cable tie (3).

Installation note:

Replace cable tie.

Fig 6: Identifying Cable Holder And Cable Tie

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WARNING: Risk 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

Engage special tool 31 5 251 with a 2nd person helping completely on workshop jack 00 2 030.

Insert special tools 31 5 255 in telescopic supports of a profile rail pair.

NOTE: In a profile rail pair two profile rails are connected to each by toothing.

Insert special tools 31 5 253 in telescopic supports of other profile rail pair.

Fig 7: Identifying Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The jacking points on the left side are shown.

Align special tools 31 5 255 and 31 5 253 to front axle support.

Support front axle support by operating workshop jack 00 2 030.

Fig 8: Identifying Special Tools 31 5 255 And 31 5 253

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Release screws (1 to 3).

Installation note:

Check threads for damage; if necessary, repair with HELICOIL THREAD INSERTS .

Make sure screws are installed in correct positions.

Screws (1) M12x85
Tightening torque 31 11 1AZ
Replace screws (2) N10x60.
Tightening torque 31 11 5AZ
Screws (3) M12x62
Tightening torque 31 11 2AZ

Fig 9: Identifying Screws

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: When lowering the front axle support, it is absolutely essential to make sure that the control head (1) of the electric steering gear (EPS) does not collide in area (2) with the bulkhead!
Collision with the bulkhead may result in damage to the electric steering gear (EPS)!

Fig 10: Identifying Control Head Of Electric Steering Gear

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: When lowering and raising, make sure there is freedom of movement between front axle support, transmission and A/C lines.

Lower front axle support max. to dimension (A) = 120 mm.

Fig 11: Identifying Front Axle Support Dimension

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IMPORTANT: Seal (1) of electric steering gear (EPS) must always be replaced.

Fig 12: Identifying Electric Steering Gear Seal

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After Installation note:

Version with Dynamic Stability Control (DSC): Carry out STEERING ANGLE SENSOR ADJUSTMENT .

NOTE: Only cars with DSC are fitted with a steering angle sensor (integrated in the steering column switch cluster).