32 21 231 Replacing left or right tie rod: Replacement

Necessary preliminary tasks: 

• Remove tie rod end from swivel bearing 
• Remove gaiter from power steering gear and slide back

Unscrew tie rod with special tool 32 3 160 from rack of power steering gear and remove

Tightening torque, see 32 21 2AZ in WHEEL & TIRES - TIGHTENING TORQUES .

Fig 1: Unscrewing Tie Rod With Special Tool 32 3 160 From Rack Of Power Steering Gear

Courtesy of BMW OF NORTH AMERICA, INC.

Clean rack.

Check surface of rack for damage (e.g. corrosion).

Replace O-ring (1).

Grease rack and O-ring (1). Refer to OPERATING FLUIDS .

Fig 2: Replacing O-Ring

Courtesy of BMW OF NORTH AMERICA, INC.

Assembling new component with gaiter: 

Release clamping nut (2).

Screw off tie rod end; if necessary, grip tie rod with open-end wrench.

Remove clamping ring (1) and clamping nut (2).

Push gaiter (4), band clamp (3), clamping nut (2) and clamping ring (1) onto tie rod.

Determine measurement (A) on old part to simplify following adjustment of front axle.

Screw in tie rod end to measurement (A).

Tighten down clamping nut (2).

Fig 3: Assembling New Component With Gaiter

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque, see 32 21 5AZ in WHEEL & TIRES - TIGHTENING TORQUES .

After installation: 

• Perform Chassis Alignment Check .
• Carry out Steering Angle Sensor Adjustment/Adjustment For Active Front Steering .