Note: New lower bolts and upper shock to knuckle bolt nut, tie rod ball joint nut, and lower arm ball joint yoke nut are required for installation.
Removing
1. Apply the parking brake, then jack up the front of the vehicle and support it securely on jack stands (see "Jacking up the car and placing it on stands"). Remove the relevant wheel.
2. If the steering knuckle is being replaced, remove the hub as described in paragraph 3.
3. If a knuckle will be used, loosen and remove the two bolts holding the caliper support bracket to the knuckle, then slide the caliper off the disc. Note: Discard the caliper bolts as new ones must be used for installation. Use a piece of string or wire to tie the caliper to the suspension spring and avoid stretching the brake hoses. On models with ABS. also remove the wheel sensor as described in Chapter 9.
4. Loosen and unscrew the nut securing the ball joint to the steering knuckle (see fig. 4.4) and press out the conical pad using a universal ball joint puller.
Pic. 4.4. Unscrew the fastening nut and separate the steering rod from the steering knuckle
5. When performing work on the right fist on models equipped with the ASD system (automatic differential lock), remove the mounting bolts and remove the wheel acceleration sensor.
Warning: The ASD sensor is sensitive to impact and should not be dropped or hit.
6. When the knuckle is removed, it is necessary to support the lower arm. Do this by placing a jack and a block of wood under the lever and lifting it up. Instead, you can compress the spring with a spring compressor.
7. Loosen and remove the two lower strut-to-shock bolts.
8. Loosen and remove the nut and washer, then remove the upper bolt securing the shock absorber to the steering knuckle.
9. Separate a rotary fist from the shock-absorber. then loosen and remove the lower arm ball joint pinch bolt and nut (see fig. 4.9).
Pic. 4.9. Remove the pinch bolt and lower arm ball joint nut
10. Separate the knuckle from the ball joint of the lower arm and remove from the vehicle (see fig. 4.10). Zoom into the fist; if wear or damage is found, replace it. Note that the tie rod can be replaced separately. The tie rods should be replaced each time they are unscrewed.
Pic. 4.10. Separate the steering knuckle from the ball joint of the lower arm
Installation
11. Before installing the lever, clean the threads of the bottom bolt holes with a tap of the appropriate size.
Advice. If you do not have the required tap, go through the thread using an old slotted bolt on the thread.
12. Align the fist with the ball joint pin. Insert the clamp bolt, then install a new nut and tighten it to the required torque. To protect the assembly from corrosion, lay the sealant in the cut of the clamp.
13. Place your knuckle against the shock, making sure the lug on the knuckle lines up with the hole.
14. Insert the top knuckle bolt and washer, then install a new nut. Install two new lower shock absorber to knuckle bolts. When all the bolts are in place, push the knuckle pin firmly down to connect the top of the knuckle to the shock. Hold your knuckle in this position and tighten the top bolt nut to the correct torque. Then tighten both lower bolts.
15. Remove Jack/Spring Compressor (depending on what you use) and connect the tie rod ball joint to the steering knuckle. Install a new nut on the ball joint and tighten it to the required torque.
16. Install the hub as described in paragraph 3.
17. On models where the hub has not been removed, remove all traces of the fixing compound (see point 11) and slide the caliper into place on the disc. Install new mounting bolts and tighten them to the required torque (see chapter 9). Where provided, install the ASD sensor on the hub and securely tighten the mounting bolts.
19. Install the wheel, then lower the vehicle to the ground and tighten the wheel bolts to specification.