Remove/Install Master Brake Cylinder - AR42.10-P-0300LW
WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.
Model 205
Model 213
Model 253
| 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 | |
| Notice | Notes on externally invisible brake fluid loss | AH42.10-P-9406-02A | |
| Notice | Notes on repairs to brake system | AH42.00-P-0003-01A | |
| Notice | Brake fluid notes | AH42.50-P-0001-01A | |
| Remove/install | |||
| 1 | Reduce vacuum in BAS brake booster (A7/7) by depressing brake pedal several times | ||
| 2 | Remove brake fluid reservoir | AR42.10-P-0301LW | |
| 3 | Clean master brake cylinder (1) in the area around the connections of brake lines (2) | Otherwise minute particles of dirt in the hydraulic components can result in malfunctions and total failure of the brake system. |
*BR00.45-Z-1028-04A |
| 4 | Mark brake lines (2) to match connections | ||
| 5 | Remove brake lines (2) from master brake cylinder (1) and seal openings using suitable stop plugs | ||
| Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | Foreign objects can otherwise enter the master brake cylinder (1) and cause damage. |
AH00.00-P-0015-01CW | |
Model 253 Retaining screw, brake line to master brake cylinder |
*BA42.10-P-1003-04O | ||
Model 213 with code B07 (AMG - ceramic brake system) Retaining screw, brake line to master brake cylinder |
*BA42.10-P-1003-04P | ||
| Fig 3 | |||
| Fig 2 | |||
| 6 | Unscrew nut (3) and nut (arrow) | ||
| Notice | Notes on self-locking nuts and Bolts | AH00.00-P-0001-01KOA | |
| *BA42.10-P-1001-05L | |||
| 7 | Guide master brake cylinder (1) out under the strut (4) out of BAS brake booster (A7/7) and remove toward the back | Otherwise the vehicle paint can be damaged. The push rod will otherwise be pressed out of its axial position. |
|
| 8 | Install in the reverse order | ||
| 9 | Bleed brake system | Model 205 Model 253 |
AR42.10-P-0010LW |
| Model 213 | AR42.10-P-0010LWE | ||
| Check | |||
| 10 | Check brake system for leaks | AR42.10-P-0015LW | |
| 11 |
Carry out brake test on the test stand | AP42.00-P-4290BA |
MASTER BRAKE CYLINDER
| Number | Designation | Model 205 | Model 213 | |
|---|---|---|---|---|
| BA42.10-P-1001-05L | Nut, brake master cylinder to brake booster | Nm | 21 | 25 |
MASTER BRAKE CYLINDER
| Number | Designation | Model 253 | |
|---|---|---|---|
| BA42.10-P-1001-05L | Nut, brake master cylinder to brake booster | Nm | 21 |
BRAKE LINES, BRAKE HOSES
| Number | Designation | Model 205 (except 205.086/087/286/287/386/387/486/487) | Model 205.086/087/286/287/386/387/486/487 | ||
|---|---|---|---|---|---|
| BA42.10-P-1003-04O | Retaining screw, brake line to master brake cylinder | Ø 4.75 mm | Nm | 18 | 18 |
| Ø 6.00 mm | Nm | 18 | 18 | ||
| Ø 8.00 mm | Nm | 24 | 24 | ||
BRAKE LINES, BRAKE HOSES
| Number | Designation | Model 253 | ||
|---|---|---|---|---|
| BA42.10-P-1003-04O | Retaining screw, brake line to master brake cylinder | Ø 4.75 mm | Nm | 16 |
| Ø 6.00 mm | Nm | 16 | ||
| Ø 8.00 mm | Nm | - | ||
BRAKE LINES, BRAKE HOSES
| Number | Designation | Model 213 except code B06/B07 | Model 213 with code B06/B07 | |
|---|---|---|---|---|
| BA42.10-P-1003-04P | Retaining screw, brake line to master brake cylinder | Nm | 16 | 16 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1028-04A | Assembly cleaner | A 000 986 56 01 |