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Home >> BMW >> 2013 >> M3 2D Convertible, Standard Trans >> Repair and Diagnosis >> Suspension >> Front Suspension >> Front Axle - Repair -- M3 Convertible >> Struts With Rubber Mounts >> 31 12 000 Removing and installing/replacing left or right wishbone

31 12 000 Removing and installing/replacing left or right wishbone

NOTE: If the wishbone is detached from the front axle support, it will be necessary to carry out the wheel alignment procedure  . See 32 00 150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION or 32 00 155 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD .

Necessary preliminary tasks: 

Outer M3, M Coupe: 

If necessary, remove jointed rod of ride height sensor from wishbone.

Fig 1: Locating Jointed Rod Of Ride Height Sensor
G09892335Courtesy of BMW OF NORTH AMERICA, INC.

M3, M Coupe: 

Slacken nut (1).

Remove jointed rod (2) from wishbone.

Installation note: 

Sensor lever (3) must point from ride height sensor to left front wheel.

Tightening torque 37 14 3AZ

Fig 2: Identifying Slacken Nut, Sensor Lever And Jointed Rod
G09892336Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1), if necessary, counter-hold at inner Torx (T40).

Installation note: 

Keep wishbone to swivel bearing connection clean and free from oil and grease.

Replace self-locking nut.

Tightening torque 31 12 4AZ .

Fig 3: Identifying Counter-Hold At Inner Torx Nut
G09848995Courtesy of BMW OF NORTH AMERICA, INC.

Slacken nut (1).

Remove screw towards front; if necessary remove bracket (2) with ride-height sensor.

Take off wishbone.

Installation note: 

Screw head must point in direction of travel.

Replace self-locking nut.

Tighten down bolt connection in NORMAL POSITION .

Tightening torque 31 12 3AZ .

Fig 4: Removing Bracket With Ride-Height Sensor
G09848996Courtesy of BMW OF NORTH AMERICA, INC.

After installation: 

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