Contents: Removal ↡ Installation ↡
Removal
1. Mark the position of the front wheels on the hub with paint. This will allow you to install the balanced wheel in its original position during assembly.
2. Loosen the wheel nuts. The car should stand on its wheels.
3. Jack up the front of the car, place it on jack stands and remove the wheels.
4. Release the wheel speed sensor wire and the brake pad wear sensor wire from the mount on the shock absorber strut.
5. Unscrew bolt 3 securing connecting strut 2 of the anti-roll bar to shock absorber strut 1 (see illustration).
Caution! Do not damage the dust cap. Hold the ball joint pin 4 of the connecting pillar from turning with a wrench.
Attention! If necessary, disconnect the lower mount of the connecting post in the same way.
6. Mark the position of the shock absorber strut 1 on the steering knuckle with a felt-tip pen (see illustration).
7. Unscrew nuts 5 and remove bolts (see illustration 3.6).
8. Support or brace the shock absorber strut before removing the bolts that secure the upper strut support to the mudguard. Otherwise, the strut will fall.
9. Unscrew bolts 6 securing the upper support of the shock absorber strut to the mudguard (see illustration).
Attention! When dismantling the left shock absorber strut, first remove the washer reservoir and secure it away from the work area, without disconnecting the hoses from the reservoir.
10. Squeeze the lock 7 (see illustration 3.9), release the upper support of the rack from the mudguard and remove it from the wheel wells.
Caution: Do not damage the brake hose.
Installation
11. Carefully insert the shock absorber strut through the wheel arch into the hole in the mudguard.
12. Secure the upper shock absorber strut support to the mudguard using bolts tightened to a torque of 40 Nm.
13. Secure the lower part of the shock absorber strut to the steering knuckle. Install the mounting bolts so that their heads face forward, in the direction of travel.
14. Screw the nut first onto the lower bolt securing the strut to the steering knuckle, and then onto the upper one. Do not tighten the nuts.
15. Tighten the nuts first on the upper and then on the lower bolts securing the shock absorber strut to the steering knuckle, applying a force of 100 Nm, while holding each bolt from turning.
16. Secure the anti-roll bar connecting strut to the shock absorber strut with a new self-locking nut and washer. The tightening torque of the nut is 45 Nm. At the same time, hold the ball joint pin 4 of the connecting rod from turning with a wrench.
17. Secure the strut, if it was disconnected, to the anti-roll bar. The tightening torque is 45 Nm.
18. Secure the wires of the wheel speed sensor and brake pad wear sensor to the shock absorber strut.
19. Install the washer reservoir back in place, if removed, and secure it with the locking lever.
20. Install the front wheel in accordance with the marks made during removal. Before doing this, lubricate the centering seat of the wheel disk on the hub with a thin layer of grease. Do not lubricate the wheel mounting bolts. Replace rusted bolts with new ones.
21. Screw in the wheel mounting bolts and lower the vehicle.
Article text obtained from the website MercedesMan.ru
22. Tighten the wheel bolts in a crisscross pattern to 110 Nm.
23. Check and adjust the wheel alignment if a new shock absorber strut was installed.