Test brake system with pressure tester for leaks - AR42.10-P-0015LW
MODEL 205
| Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. | No parts of the body or limbs should be within the operating area when the components are moving. | AS00.00-Z-0011-01A | |
| Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. | AS00.00-Z-0010-01A | |
| 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 | |
| Notes on externally invisible brake fluid loss | AH42.10-P-9406-02V | ||
| Brake fluid notes | AH42.50-P-0001-01A | ||
| Notes on repairs to brake system | AH42.00-P-0003-01A | ||
| Check | |||
| 1 | Open engine hood and raise to vertical position | ||
| 2 | Remove cover above brake fluid reservoir (1) | ||
| 3 | Clean area around cap on brake fluid reservoir (1) | ||
| 4 | Screw cap onto brake fluid reservoir (1) | ||
| 5 | Connect filler/bleeder unit on brake fluid reservoir (1) | ||
| 000 588 01 82 00 Filling unit | WS25.00-P-0016B | ||
| Brake fluids (DOT 4 plus) | MB 331.0 brake fluid A 000 989 08 07 | ||
| General brake fluid | DOT 4. See GENERAL BRAKE FLUID (https://bevo.mercedes-benz.com/index.php?language_id=1) | ||
| 6 | Lift vehicle on vehicle lift | AR00.60-P-1000LW | |
| 7 | Remove the bleed screw on the left front brake caliper (2) and connect pressure tester (3) | ||
| 000 588 07 21 00 Test equipment | WS42.00-P-0014B | ||
Pressure testers (3) for hydraulic fluid systems must not be used for systems with brake fluid. Otherwise, the brake fluid will be mixed with mineral oil, which can cause brake failure. |
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| 8 | Bleed pressure tester (3) | ||
| 9 | Switch off filling and bleeding unit and vent pressure | ||
| Measure using pointer device | |||
| Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | AS00.00-Z-0005-01A | |
| 10 | Allow the engine to run at moderate speed and release the accelerator pedal suddenly | ||
| 11 | Immediately press down brake pedal as far as possible and insert brake pedal jack (010) with adapter between brake pedal and driver seat | Cover contact area of brake pedal and driver's seat. Otherwise the brake pedal or the driver seat may be damaged. |
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| Fig 2 | |||
| Fig 3 | |||
| 12 | Read off and note brake pressure on high-pressure gauge of pressure tester (3) | ||
| 13 | Read off and note brake pressure again after 5 minutes on the high-pressure gauge of pressure tester (3) | ||
| 14 | Switch off engine and remove brake pedal jack (010) with adapter | ||
| 15 | Push down brake pedal several times | ||
| 16 | Press down brake pedal as far as possible and insert brake pedal jack (010) with adapter between brake pedal and driver seat | Cover contact area of brake pedal and driver's seat. Otherwise the brake pedal or the driver seat may be damaged. |
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| Fig 2 | |||
| Fig 3 | |||
| 17 | Slowly turn back brake pedal jack (010) until the low-pressure gauge on the pressure tester (3) displays a brake pressure of approx. 3 bar | ||
| 18 | Read off and note the brake pressure after 2 minutes on the low pressure gauge of pressure tester (3) | ||
| 19 | Remove brake pedal jack (010) and adapter | ||
| 20 | Connect pressure tester (3) to brake caliper (2) and screw bleed screw all the way into brake caliper (2) | ||
| 21 | Bleed brake system | AR42.10-P-0010-02LW | |
| *BA42.10-P-1003-10W | |||
| *BA42.10-P-1002-12V | |||
| 22 | Disconnect filler/bleeder unit from brake fluid reservoir (1) | ||
| 23 | Check fluid level in brake system and correct if necessary | ||
| Brake system - inspect fluid level | AP42.10-P-4210CAA | ||
| 24 | Screw cap onto brake fluid reservoir (1) | ||
| 25 | Install cover over brake fluid reservoir (1) | ||
| 26 | Close engine hood |
REAR AXLE BRAKE CALIPER
| Number | Designation | Model 205.086/087/286/287/386/387/486/487 | Model 205 (except 205.086/087/286/287/386/387/486/487) | |
|---|---|---|---|---|
| BA42.10-P-1002-12V | Bleed screw at brake caliper | Nm | 18 | 18 |
FRONT AXLE BRAKE CALIPER
| Number | Designation | Model 205 (except 205.086/087/286/287/386/387/486/487) | |
|---|---|---|---|
| BA42.10-P-1003-10W | Bleed screw on brake caliper | Nm | 18 |