Shown on model 177.0 on 1-piston floating caliper brake |
1 | Brake linings |
2 | Electrical connector |
3 | Screw |
4 | Plug housing |
5 | Screw |
6 | Brake caliper |
7 | Caliper support |
8 | Slide plates |
9 | Sliding bolt |
P42.10-3254-06
Warning | Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities. | No parts of the body or limbs should be within the operating area of mechanical components when moving components. | |
Caution | Risk of poisoning from swallowing brake fluid. Risk of injury from skin and eye contact with brake fluid | Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. | |
Warning | Risk of injury. Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | |
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
Topical note | Notes on repairs to brake system | ||
Topical note | Brake fluid notes | ||
Topical note | Notes on self-locking nuts and bolts | ||
Topical note | Notes on handling, transport and storage of composite brake disks | ||
Notes on installing brake wear indicator contact sensors | |||
| Remove | ||
1 | Switch off ignition and store transmitter key outside of transmitter range (min. 2 m). | ||
2 | Remove cover above brake fluid expansion reservoir. | ||
3 | Clean area around cap on brake fluid expansion reservoir. | Assembly cleaner | |
4 | Unscrew cap on brake fluid expansion reservoir and extract some brake fluid. | This prevents the expansion reservoir overflowing when the brake piston is pushed back. | |
5 | Remove front wheel and tire assemblies. | ||
6 | Unhook brake hose from holder (arrow A). | ||
7 | Release and disconnect electrical connector (2) of right front brakepad wear sensor (S10/2). | On the right side of the vehicle. | |
8 | Remove screw (3) and place plug housing (4) to one side. | On the right side of the vehicle. | |
9 | Remove lower screw (5). | ||
10 | Swivel brake caliper (6) upwards and secure against folding over. | ||
11 | Remove brakepads (1) from brake caliper support (7). | ||
12 | Remove sliding plates (8). | ||
| Check | ||
13 | Check brakepads (1) for wear and condition. | ||
| Model 247 (except 247.651/751/753/754) | ||
| Model 177 (except 177.051/053/054/151/951) | ||
| Model 118 (except 118.351/353/354/651/653/654) | ||
If a problem is detected, | |||
| |||
Replace brake linings (1). | |||
14 | Check brake disks for wear and condition. |
| |
Model 247 (except 247.651/751/753/754) | |||
Model 177 (except 177.051/053/054/151/951) | |||
Only brake disks approved by Mercedes-Benz may be installed. | |||
Replace brake disks as a complete set only. | |||
If damage or too much wear is detectable. | |||
| |||
Replace brake disks. | |||
15 | Check brake caliper (6) with detachable parts for damage. | If a problem is detected, | |
| |||
Replace corresponding components. | |||
16 | Check brake caliper support (7) and sliding bolts (9) for damage and ease of movement. | If a problem is detected, | |
| |||
Replace corresponding components. | |||
| Clean | ||
17 | Clean contact surfaces of brakepads (1) on brake caliper (6) and on brake caliper support (7). | | |
Remove adhesive residue on contact surfaces of brake caliper (6) completely. | |||
Assembly cleaner | |||
| Install | ||
18 | Push back brake piston. | Resetting device | |
19 | Install sliding plates (8). | ||
20 | Install right front brakepad wear sensor (S10/2) into brakepad (1). | On the right side of the vehicle. | |
21 | Apply brake paste to brake caliper support (7), to brake caliper (6) and to mounting surfaces of brakepads (1). | Brake paste, Varybond | |
22 | Insert brakepads (1) into brake caliper support (7). | Insert brakepads (1) diagonally in order to not deform the springs plastically. | |
No brake pastes or lubricants may be applied to the brakepads (1). | |||
Only brakepads (1) approved by Mercedes-Benz may be installed, and only as complete sets. | |||
23 | Swivel brake caliper (6) downwards. | Ensure correct routing of the electrical connector (2) of the right front brakepad wear sensor (S10/2). | |
24 | Tighten lower screw (5). | Bolt, guide pin to brake caliper | |
25 | Tighten plug housing (4) with screw (3). | On the right side of the vehicle. | |
26 | Connect electrical connector (2) of right front brakepad wear sensor (S10/2). | On the right side of the vehicle. | |
27 | Clip brake hose into holder (arrow A). | Do not twist the brake hose, and make sure that it is routed correctly. | |
28 | Install front axle wheel and tire assemblies. | ||
Danger | 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 the engine, actuate brake pedal several times until pressure is built up and maintained in the brake system. | |
29 | Operate brake pedal several times until the brakepads (1) make contact with the brake disks. | ||
| Check | ||
30 | Check and correct brake fluid level in expansion reservoir. | ||
| |||
Danger | Risk of death caused by limbs being caught or crushed by rotating parts when performing tests on the brake test stand | Never leave the vehicle unattended on the rollers except in an emergency. Ensure that no one is under the vehicle or near rotating parts during testing. In case of emergency, use the EMERGENCY OFF switch to shut down test stand. | |
31 | Perform brake test on test stand. | ||
| Brake test |
000 589 52 43 00
Resetting device
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