To take out the steering knuckle, apply the brakes, then raise the car and remove the whole front wheel assembly. Then, pull the small pin, lock nut and spring washer from the hub nut and while braking, unscrew and take out the hub nut before stop braking. Remove both bolts holding the front disc
Brake Caliper to the steering knuckle, tip the caliper upper or lower away from the rotor by the slide and pull it off the other end of the slide and rotor. Disconnect the caliper and suspend it out of the way, making certain the hose is not holding the weight. Remove any hold-down clips from the wheels and take off the brake rotor at the front hub next. Then, hold the tie rod end stud in place with a wrench, twist off the nut using a standard or crowfoot wrench and pull the tie rod end off the steering knuckle using Remover, Special Tool MB991113. Finally, remove the heat shield from the tie rod. Grasp the pinch bolt and nut on the ball joint stud and carefully loosen them. While you are doing this, press the serrated attaching bolts between the strut and steering knuckle to keep them from turning, then tap the pinch bolts out with a pin punch. Get rid of the bolts binding the strut to the steering knuckle without cutting the ball joint seal by prying the stud up and the lower arm down toward the ball joint boss. Make sure the supports are under the driveshaft so the inner joint on the ON does not come apart and then release the steering knuckle from the splines of the driveshaft outer C/V joint. Since it's not possible to transfer the cartridge type front
Wheel Bearing, make sure to remove the hub and wheel bearing before changing the steering knuckle. For taking the parts apart, first remove the steering knuckle, hub and wheel bearing as a set, then insert Remover, Special Tool 41 50A, into the outer hub flange to press out a stud that is aligned with the notch in the bearing retainer plate. Insert Special Tool 1130, half of the bearing splitter, between the hub and bearing retainer plate, so its threaded hole lines up with the caliper rail on the steering knuckle, then install and tighten the other parts of the bearing splitter by hand. Make certain the three bolts securing the bearing retainer plate to the steering knuckle touch the bearing splitter and use an arbor press to mount the steering knuckle while resting it on the bearing splitter. Place Special Tool 6644-2 on the little end of the hub and press it with the arbor press until the hub and outer race are removed from the wheel bearing. With the bearing splitter and the three bolts out, you should press the wheel bearing out of the steering knuckle with the Bearing Driver, Special Tool MB-990799. Before assembly, clear any dirt from the steering knuckle bore, insert the wheel bearing and use Driver, Special Tool 5052 to press it in all the way. Fit the bearing retainer plate and tighten the three bolts to an even torque of 28 Nm (250 inch lbs.). Patch the wheel stud back into the hub flange and push it well, then bring the steering knuckle and wheel bearing back to the arbor press and press the hub directly into the rear of the wheel bearing. Installing the steering knuckle first, slide the hub over the splines of the C/V joint, match the ball joint stud with the steering knuckle, place a pinch bolt and nut and tighten the nut to a torque of 95 Nm (70 ft. lbs.). Place the lower section of the strut assembly directly above the upper part of the steering knuckle and put the bolts through the holes, facing the front of the car as you tighten them to 53 Nm (40 ft. lbs.) more turn by hand. Set the heat shield onto the steering knuckle arm, slide the outer tie rod ball stud into place and tighten the nut using 55 Nm (40 ft. lbs.) of force. First, attach the brake rotor to the hub, then fit the disc brake caliper onto the rotor and steering knuckle, using the two guide pin bolts. Fasten the bolts to a torque of 22 Nm (192 lb. in.) Wash the driveshaft C/V joint threads and fit the hub nut on them, tightening it 244 Nm (180 ft. lbs.) with the brakes on. Finally, put the spring washer, lock nut and cotter pin on the hub nut, then wrap the cotter pin ends around the lock nut, put on the tire and wheel assembly, tighten the wheel mounting nuts to 135 Nm (100 ft. lbs.), lower the vehicle and adjust the toe of the wheel to specification.