(Remove/Install Rear-Axle Brake Caliper - AR42.10-P-0080EL)
WARNING: This page is about a different car, the 2023 Mercedes-Benz C300, 2022 Mercedes-Benz C300, 2021 Mercedes-Benz C300, 2020 Mercedes-Benz C300, and 2019 Mercedes-Benz C300. However, it is still accessible from the selected car via links, so may be relevant.
Model 218 (except 218.374/375/376/392/974/975/976/992)
| 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. | AS00.00-Z-0002-01A | |
| 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. | AS42.50-Z-0001-01A | |
| 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. | AS42.50-Z-0002-01A | |
| Notes on self-locking nuts and bolts | AH00.00-N-0001-01A | ||
| Brake fluid notes | AH42.50-P-0001-01A | ||
| Notes on repairs to brake system | AH42.00-P-0003-01A | ||
| Notes on installing brake wear indicator contact sensors | AH42.10-P-0003-01CW | ||
| Notes on safety-relevant components | AH00.00-Z-0019-01A | ||
| Remove/install | |||
| 1 | Clean area surrounding the cap of the brake fluid expansion reservoir | Assembly cleaner | *BR00.45-Z-1028-04A |
| 2 | Unscrew cap from brake fluid expansion reservoir and extract some brake fluid | ||
| 3 | Remove rear wheel | ||
| AP40.10-P-4050EW | |||
| 4 | Remove spring (1) from brake caliper (2) | ||
| 5 | Detach rear right brake wear sensor electrical connector (S10/4x1) from coupling housing of rear right brake wear sensor (S10/4) | When removing brake caliper (2) at right. | |
| 6 | Remove bolt (14) and place coupling housing of the rear right brake wear sensor (S10/4) to one side | When removing brake caliper (2) at right. |
*BA42.10-P-1003-12J |
| 7 | Remove brake hose (7) | AR42.10-P-0013EW | |
| 8 | Use suitable plug to seal opening on brake caliper (2) | Fig 2 | |
| 9 | Remove dust caps (3) from boots (4) | ||
| 10 | Unscrew guide pins (5) | *BA42.10-P-1004-12J | |
| 11 | Remove brake caliper (2) from brake caliper support (8) | The new brake caliper (2) is shipped in prefilled condition and it may not be drained. Otherwise, the brake caliper (2) cannot be vented. |
|
| 12 | Remove brake linings (6) | AR42.10-P-1700EL | |
| Check | |||
| 13 | Check brake caliper (2) and dust boot (10) on brake piston for leak tightness and damage | If a problem arises ↓ Replace brake caliper (2). |
|
| 14 | Remove stop plug from brake caliper (2) | Make sure that the brake caliper (2) is not completely emptied. |
|
| Fig 2 | |||
| 15 | Push back brake piston using pusher tool (01) | When reusing brake caliper (2). Make sure that the brake caliper (2) is not completely emptied. Otherwise, the brake caliper (2) cannot be vented. Replace brake caliper (2). |
|
If brake piston is sluggish ↓ Replace brake caliper (2). |
Fig 1 | ||
| 16 | Use suitable plug to seal opening on brake caliper (2) again | Fig 2 | |
| 17 | Check boots (4) on brake caliper (2) for damage | If a problem arises ↓ Replace boots (4). |
|
| 18 | Check brake caliper support (8) for damage | If a problem arises ↓ Replace brake caliper support (8). |
*BA42.10-P-1001-12J |
| 19 | Check brake disk (9) for wear and that it is in good condition | ||
| Model 218 (except 218.374/375/376/392/974/975/976/992) except code B07 (AMG - ceramic brake system) If a problem arises ↓ Install new brake disks (9). |
AP42.10-P-4258EW | ||
| Model 218 (except 218.374/375/376/392/974/975/976/992) except code B07 (AMG - ceramic brake system) | AR42.10-P-0220EWE | ||
| 20 | Clean contact surfaces of brake linings (6) on brake caliper (2) and on brake caliper support (8) | Do not damage dust boot (10) on the brake piston. Otherwise, the brake caliper (2) could be damaged. Assembly cleaner |
*BR00.45-Z-1028-04A |
| 21 | Install in the reverse order | ||
| 22 | Bleed brake system | AR42.10-P-0010EW | |
| 23 | Depress brake pedal several times until brake linings (6) rest against brake disks (9) | ||
| Check | |||
| 24 | Check and correct brake fluid level in expansion reservoir for brake fluid | ||
| AP42.10-P-4210EW | |||
| 25 | Carry out brake test on the test stand | ||
| AP42.00-P-4290BA |
REAR AXLE BRAKE CALIPER
| Number | Designation | Model 218 | |
|---|---|---|---|
| BA42.10-P-1001-12J | Bolt, brake caliper/brake caliper support to wheel carrier | Nm | 135 |
REAR AXLE BRAKE CALIPER
| Number | Designation | Model 218 | |
|---|---|---|---|
| BA42.10-P-1003-12J | Screw/bolt, brake wear sensor to brake caliper | Nm | 8 |
REAR AXLE BRAKE CALIPER
| Number | Designation | Model 218 | |
|---|---|---|---|
| BA42.10-P-1004-12J | Guide pin to brake caliper support or bolt for guide pin to brake caliper | Nm | 25 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1028-04A | Assembly cleaner | A 000 986 56 01 |