Remove/install front wheel hub - AR33.20-P-0310SX
MODEL 216 without 4MATIC
MODEL 221 without CODE Z07 (Top protection) without 4MATIC
| Remove/install | |||
| 1 | Remove front wheel | ||
| MODEL 216, 221 | AP40.10-P-4050SX | ||
| MODEL 212, 218 | AP40.10-P-4050EW | ||
| 2 | Remove brake disk (1) | MODEL 216, 221 | AR42.10-P-0220SX |
| Model 212 with divided brake caliper support | AR42.10-P-0225EV | ||
| Model 212 with undivided brake caliper support | AR42.10-P-0225EW | ||
| MODEL 212 except AMG with fixed-caliper brake | AR42.10-P-0225EWF | ||
| MODEL 212, 218 except CODE B07 (AMG ceramic high-performance compound brake system) | AR42.10-P-0225CMG | ||
| MODEL 212, 218 with CODE B07 (AMG ceramic high-performance compound brake system) | AR42.10-P-0225QQ | ||
| Model 218 except AMG | AR42.10-P-0220EL | ||
| 3 | Pull off hub cap (2) with removal and installation tool (01) | Figure | |
| 4 | Loosen hexagon socket head screw (3a) and remove clamping nut (3) | *BA33.20-P-1001-01O | |
| *BA33.20-P-1001-01M | |||
| *BA33.20-P-1001-01Q | |||
| 5 | Remove outer tapered roller bearing (4) | ||
| 6 | Detach front wheel hub (5) from steering knuckle spindle (6a) | If front wheel hub (5) is firmly attached: ↓ |
|
| Pull off front wheel hub (5). | AR33.20-P-0310-01TX | ||
| Fig 6 | |||
| Fig 4 | |||
| Fig 5 | |||
| 7 | Replace radial shaft seal (7) | When reusing front wheel hub (5) | |
| AR33.20-P-0310-03SX | |||
| Fig 3 | |||
| Check | |||
| 8 | Check brake cover plate (8) for damage | ||
| *BA42.10-P-1003-06G | |||
| *BA42.10-P-1003-06H | |||
| 9 | Check steering knuckle spindle (6a) for discoloration and wear on bearing seats | If necessary ↓ Replace steering knuckle (6) |
|
| MODEL 216, 221 | AR33.25-P-0400SX | ||
| MODEL 212, 218 | AR33.25-P-0400EW | ||
| 10 | Check surface (arrow) of radial shaft sealing ring (7) on steering knuckle spindle (6a) | If there is noticeable scoring ↓ Replace steering knuckle (6) |
|
| MODEL 216, MODEL 221 | AR33.25-P-0400SX | ||
| MODEL 212, 218 | AR33.25-P-0400EW | ||
| 11 | Check threaded holes of wheel bolts in front wheel hub (5) | ||
| 12 | Check inner tapered roller bearing, outer tapered roller bearing (4) and bearing races | AR33.20-P-0310-02TX | |
| 13 | Install in the reverse order | ||
| 14 | Adjust wheel bearing play | AR33.20-P-0300SX | |
| Risk of accident when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work. | Before starting engine, actuate brake pedal several times until pressure is built up and maintained in the brake system. | AS42.50-Z-0002-01A | |
| 15 | Operate the brake pedal several times until brake pads make contact with the brake disks (1) | Press brake pedal several times in succession until a firm resistance is noticeable. Depress brake pedal 10 times fully and quickly. |
WHEEL CONTROL, HUB
| Number | Designation | MODEL 216.37 | MODEL 221.003/02/05/07/095/103/12/15/17/195 except CODE Z07 except CODE Z19 except 4MATIC | |
|---|---|---|---|---|
| BA33.20-P-1001-01M | Bolt for clamp nut used to adjust front-axle wheel bearing play | Nm | 11 | 11 |
WHEEL CONTROL, HUB
| Number | Designation | MODEL 212 except 4MATIC | |
|---|---|---|---|
| BA33.20-P-1001-01O | Bolt for locknut on front-wheel mounting | Nm | 11 |
WHEEL CONTROL, HUB
| Number | Designation | MODEL 218 except 4MATIC | |
|---|---|---|---|
| BA33.20-P-1001-01Q | Bolt for clamp nut to adjust front axle wheel bearing play | Nm | 11 |
BRAKE DISKS, BRAKE COVER PLATE
| Number | Designation | MODEL 216 | MODEL 221 | ||
|---|---|---|---|---|---|
| BA42.10-P-1003-06G | Bolt, brake cover plate to steering knuckle or wheel carrier | M6 | Nm | 14 | 14 |
| M8 | Nm | 18 | 18 | ||
BRAKE DISKS, BRAKE COVER PLATE
| Number | Designation | MODEL 212 | MODEL 218 | ||
|---|---|---|---|---|---|
| BA42.10-P-1003-06H | Bolt brake cover plate to steering knuckle or wheel carrier | M6 | Nm | 14 | 14 |
| M8 | Nm | 18 | 18 | ||