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Home >> BMW >> 2015 >> Z4 sDrive28i, Automatic Trans >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Rear Axle - Repair -- Z4_E89 >> Control Arms And Struts >> 33 32 077 Removing and installing/replacing top right control arm

33 32 077 Removing and installing/replacing top right control arm

Special tools required: 

NOTE: If the upper control arm is detached from the rear axle carrier/trailing arm, it is necessary after reinstallation to carry out a wheel/chassis alignment check.

Necessary preliminary tasks: 

Release stabilizer on upper control arm.

Tightening torque 33 55 2AZ .

Fig 1: Identifying Stabilizer On Upper Control Arm
G06910299Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) and remove screw.

Tightening torque 33 32 5AZ .

Fig 2: Identifying Control Arm Nut
G06910300Courtesy of BMW OF NORTH AMERICA, INC.

Release bolt (1) on rear axle carrier and unscrew towards rear.

Remove upper control arm at side.

Fig 3: Identifying Bolt On Rear Axle Carrier
G06910301Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Tighten control arm on rear axle carrier in normal position.

Tightening torque 33 32 6AZ .

Adjusting normal position: 

IMPORTANT: Coil spring must not be fitted yet!

Press wheel carrier upwards with special tool 31 5 220 and workshop jack up to dimension A.

Dimension A = middle of wheel hub to top edge of wheel arch

Fig 4: Pressing Wheel Carrier Upwards Using Special Tool (31 5 220)
G06910302Courtesy of BMW OF NORTH AMERICA, INC.

Conventional chassis/suspension: 

A = 361 mm

EDC suspension: 

A = 351 mm

After installation: