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Home >> BMW >> 2011 >> 1M >> Repair and Diagnosis >> Suspension >> Front Suspension >> Front Axle - Repair >> Front Sub-Frame >> 31 11 506 Lowering/raising front axle support (M Coupe)

31 11 506 Lowering/raising front axle support (M Coupe)

Special tools required: 

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 INFORMATIONS for raising the vehicle
In order to avoid damage to vehicle hoist, perform weight compensation on vehicle.
Load spring strut domes with sand bags.
WARNING: Danger to life!
Secure engine in installation position with special tool to prevent it from falling down.

Necessary preliminary work: 

Remove deformation element from pedestrian protection (only vehicles from 03/12): 

Slacken screw (1) on front pedestrian protection.

Release screws (2) from deformation element and adapter.

Tightening torque 51 11 7AZ/8AZ .

Fig 1: Identifying Pedestrian Protection Screw
G09848964Courtesy of BMW OF NORTH AMERICA, INC.

Press deformation element (1) towards the bottom and remove adapter (2) towards the top.

Fig 2: Removing Adapter
G09848965Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1) from ride height sensor.

Disconnect plug connection (2) for EH converter Servotronic.

Fig 3: Identifying EH Converter Servotronic Plug Connection
G06203903Courtesy of BMW OF NORTH AMERICA, INC.

Release screws on coolant pipe (1).

Fig 4: Locating Coolant Pipe Screws
G10019854Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Pay attention to hydraulic steering hoses and lines when lowering/raising! Hoses/lines must not be kinked/tensioned/bent!

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

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

NOTE: In a profile rail pair, two profile rails are connected to one another by gearing.

Insert special tools 31 5 256 in telescopic supports of other profile rail pair.

Fig 5: Inserting Special Tools (31 5 256) In Telescopic Supports
G05778124Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: The jacking points on the left side are shown.

Align special tools 31 5 253 and 31 5 256 to front axle support.

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

Fig 6: Aligning Special Tools (31 5 253) To Front Axle Support
G05778125Courtesy of BMW OF NORTH AMERICA, INC.

Lower front axle support by no more than 10 cm.

Release bolts (1-3).

Tightening torque 31 10 1AZ .

Installation note: 

Check thread for damage; if necessary, repair with HELICOIL THREAD INSERT .

Make sure screws are installed in correct positions.

Tighten screws (1) and then screws (2, 3).

Fig 7: Identifying Front Axle Support Screws
G05778126Courtesy of BMW OF NORTH AMERICA, INC.