Adjust wheel bearing play - AR33.20-P-0300SX
MODEL 212 except CODE M005 (4MATIC)
MODEL 216 without 4MATIC
MODEL 218 except CODE M005 (4MATIC)
MODEL 221 except CODE Z07 (Top protection) without 4MATIC
| Remove | |||
| 1 | Ensure vehicle idle (bus idle) | MODEL 221.095/195 | AR54.10-P-2000-01SX |
| 2 | Remove front wheel | ||
| MODEL 216, 221 | AP40.10-P-4050SX | ||
| MODEL 212, 218 | AP40.10-P-4050EW | ||
| 3 | Screw in wheel bolt (48a) opposite safety screw (9f) | ||
| 4 | Press brake pads back into brake caliper | ||
| 5 | Pull off hub cap (9e) using removal and installation tool | Fig 2 | |
| Check | |||
| 6 | Slacken hexagon socket head screw (9i) and lightly tighten clamping nut (9d) while rotating the front wheel hub (5) | ||
| 7 | Loosen clamping nut (9d) slightly | ||
| 8 | Mount dial indicator (022) with dial indicator holder (015) to brake disk (6) | Fig 3 | |
| Fig 4 | |||
| 9 | Adjust wheel bearing play by turning (arrow) the clamping nut (9d) in stages while pushing and pulling the brake disk (6) firmly back and forth | Incorrect measurement may result in the set wheel bearing play being too small. This can then lead to wheel bearing damage. |
|
| MODEL 216, 221 wheel bearing play at front axle | *BE33.20-P-1002-01A | ||
| MODEL 212, 218 wheel bearing play at front axle | *BE33.20-P-1001-01F | ||
| 10 | Tighten hexagon socket head screw (9i) and check wheel bearing play again | *BA33.20-P-1001-01O | |
| *BA33.20-P-1001-01M | |||
| *BA33.20-P-1001-01Q | |||
| 11 | Remove the dial gauge (022) and its stand (015) | ||
| Install | |||
| 12 | Fill hub cap (9e) with high-temperature roller bearing grease | ||
| High temperature antifriction bearing grease (NLGI grade 2) | High temperature antifriction bearing grease (NLGI grade 2). See https://bevo.mercedes-benz.com/index.php?language_id=1 | ||
| 13 | Mount hub cover (9e) | Fig 2 | |
| 14 | Remove wheel bolt (48a) | ||
| 15 | Mount front wheel | ||
| MODEL 216, 221 | AP40.10-P-4050SX | ||
| MODEL 212, 218 | AP40.10-P-4050EW | ||
| 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 | |
| 16.1 | Press brake pedal several times in succession until a firm resistance is noticeable. | MODEL 212, 216, 218, MODEL 221 (except 221.095/195) | |
| 16.2 | Depress brake pedal 10 times fully and quickly. | MODEL 221.095/195 |
TEST SPECIFICATIONS FOR WHEEL LOCATION, WHEEL HUB
| Number | Designation | MODEL 212 | MODEL 218 | |
|---|---|---|---|---|
| BE33.20-P-1001-01F | Wheel bearing play at front axle | mm | 0, 01...0, 02 | 0, 01...0, 02 |
TEST VALUES FOR WHEEL LOCATION, WHEEL HUB
| Number | Designation | MODEL 216 | MODEL 221 | |
|---|---|---|---|---|
| BE33.20-P-1002-01A | Wheel bearing play at front axle | mm | 0, 01...0, 02 | 0, 01...0, 02 |
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 221.08/094/18/194 except CODE Z07 except 4MATIC | |
|---|---|---|---|
| BA33.20-P-1001-01M | Bolt for clamp nut used to adjust front-axle wheel bearing play | Nm | - |
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 | MODEL 218 with 4MATIC | |
|---|---|---|---|---|
| BA33.20-P-1001-01Q | Bolt for clamp nut to adjust front axle wheel bearing play | Nm | 11 | - |