- loosen the wheel bolts, place the front of the car on supports, remove the front wheel from the desired side;
- ask an assistant to press the brake pedal and at the same time loosen the Phillips-head screw on the end surface of the brake disc. The disc can also remain bolted to the hub;
- unscrew and remove the brake caliper. To facilitate removal, rock the caliper several times towards the disc to dislodge the brake pads. Secure the caliper with wire to the front axle parts so that it does not hang on the brake hose;
- unscrew the brake disc screw completely and remove it. Use a rubber mallet if necessary;
Figure 212. Removing the hub seal cover: 1 - front wheel hub; 2 — hub seal cover remover; 3 - hub cap
- puller (see figure 212) remove the hub cap;
Figure 215. Loosening the retaining clamp bolt
Figure 213. Adjusting the wheel bearing: 1 - front wheel hub; 2 - locking clamp; 3 — axis; 4 - adjusting washer
Article text obtained from the website: MercedesMAN
- with a hex key (figure 215) unscrew the fastening of the locking clamp 2 (see figure 213), then remove the square washer located underneath it;
- remove the hub from the steering knuckle. If it does not give in, use a puller similar to the one shown in the picture 212. It is screwed to the hub and, by striking, it is pressed. Caution: The outer hub bearing may fall out;
- the inner bearing together with the seal remains in the hub and if it is necessary to replace the bearing it should be removed using a two-legged puller;
- if the bearing does not need to be replaced, the hub is reinstalled in the order described below. For bearing replacement, see. the corresponding subsection.
The front hub must be installed in the following order:
- apply a small amount of heat-resistant grease to the contact surface of the sealing ring with the axle;
- install the hub on the axle and press it with a rubber hammer;
- apply grease to the outer bearing and, tapping lightly, install it onto the axle from the outside of the hub;
- install the adjusting washer and tighten the locking clamp;
- adjust the bearing clearance as described in subsection 8.5.1;
- install the brake disc and secure the caliper to the steering knuckle. Tighten the bolts to a torque of 175–215 N·m;
- place some heat-resistant grease into the hub cap and press it in with a rubber hammer;
- install the wheel and lower the car. Tighten the wheel mounting bolts to a torque of 160–180 N·m.