Front Steering Knuckle: Service and Repair

Wheel knuckle front

Special tools:
951 2945 Puller 951 2945 Puller
999 7076 Lever 999 7076 Lever
999 7088 Expander 999 7088 Expander

Note! The illustrations in this service information are used for different model years and/or models. Some variation may occur. However, the essential information in the illustrations is always correct.

Preparatory work





Remove:
- the wheel
- the screw, 1 pc., (1).
Press in the drive shaft a little.

Removing the brake caliper




Remove the bolts, x2.
Hang up the caliper in a suitable position to avoid damage to the brake hose.

Removing the brake disc





Remove:
- the retaining clip
- brake disc. Pull straight out.

Removing the brake shield





Remove:
- the 4 screws
- brake shield.

Removing the steering arm




Loosen the nut so that the upper edge is above the screw. Use an Allen key as a counterhold so that the rubber gaiter is not damaged.
Pull the steering arm out of the wheel spindle. Use: 951 2945 Puller 951 2945 Puller.

Removing the ABS-sensor





Remove:
- 1 screw
- sensor. Suspend the sensor in a suitable way.

Removing the wheel spindle




Loosen the nut, 1 pc., so that the upper edge is above the screw. Use an Allen key as a counterhold so that the rubber gaiter is not damaged.




Loosen the ball joint from the wheel spindle. Use: 951 2945 Puller 951 2945 Puller.




Pull the ball joint out of the wheel spindle. Use 999 7076 Lever 999 7076 Lever.
Press out the drive shaft from the wheel spindle.




Remove the screw.
Widen the groove. Use: 999 7088 Expander 999 7088 Expander , install the tool so that the flat sides run along the groove, and turn 45°.
Carefully tap the wheel spindle downward with a copper mallet so that it releases from the strut assembly.

Installation

Installing the wheel spindle

Note! For tightening torques, see Specifications. [1][2]Specifications.

Install
- tool on the new spindle. Use: 999 7088 Expander 999 7088 Expander
- wheel spindle on the shock absorber
- the screw, 1 pc., to the wheel spindle's attachment on the shock absorber. Tighten according to: Tightening torque [1][2]Specifications.
- the drive shaft
- wheel spindle on the ball joint. Use: 999 7076 Lever 999 7076 Lever to press down the link arm
- the nut for the ball joint. Use an Allen key as counterhold. Tighten according to: Tightening torque [1][2]Specifications
- the screw, 1 pc., for the drive shaft. Counterhold on the brake disc by locking it with a screwdriver in the ventilation hole. Tighten according to : Tightening torque [1][2]Specifications.

Installing the ABS-sensor

Install:
- the sensor
- the screw, 1 pc. M5.

Installing the steering arm

Install:
- the steering arm
- the M10 nut. Use an Allen key as a counterhold.

Installing the brake shield

Install:
- brake shield
- the bolts, 4 pcs. M5.

Installing the brake disc

Install:
- the brake disc
- the retaining clip.

Installing the brake caliper
Fit the bolts, x2. Tighten in accordance with: Tightening torque Tightening Torque.

Finishing

Install the wheel. See: Wheels Service and Repair.