Test Brake System With Pressure Tester For Leaks - AR42.10-P-0015MFA
Model 118, 177, 243, 247
| Risk of burn injuries,
suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. |
Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area. | AS49.00-Z-0001-01A | |
| 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 | |
| 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 repairs to brake system | AH42.00-P-0003-01A | |
| Notice | Notes on externally invisible brake fluid loss | AH42.10-P-9406-02A | |
| Notice | Brake fluid notes | AH42.50-P-0001-01A | |
| Notes on safety-relevant components | AH00.00-Z-0019-01A | ||
| Check | |||
| 1 | Clean area around cap of brake fluid reservoir (1). | Assembly cleaner | *BR00.45-Z-1028-04A |
| 2 | Unscrew cap of brake fluid reservoir (1). | ||
| 3 | Connect filling unit to brake fluid reservoir (1). | ||
| 000 588 01 82 00 Filling unit | WS25.00-P-0016B | ||
| Brake fluids (DOT 4 plus) | BB00.40-P-0331-00A | ||
| General brake fluid | BB00.40-P-0330-01A | ||
| 4 | Raise vehicle. | AR00.60-P-1006A | |
| 5 | Remove bleed screw from left front brake caliper (2) and connect test equipment (3). | ||
| 000 588 07 21 00 Test equipment | WS42.00-P-0014B | ||
Otherwise, the brake fluid will be mixed with mineral oil, which can cause brake failure. |
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| 6 | Bleed test equipment (3). | ||
| 7 | Start engine and run. | ||
| 8 | Depress brake pedal and insert brake pedal jack (4) with adapter between brake pedal and driver's seat. | ||
| Fig 1 | |||
| Fig 2 | |||
| 9 | Read off and note brake pressure on high-pressure manometer of test equipment (3). | ||
| 10 | Read off brake pressure again on high-pressure manometer of test equipment (3) after the specified test period and compare against previously-noted value. | Check values for leak test | *BE42.10-P-1001-19A |
| If the brake pressure loss is too high. ↓ Determine cause and replace defective component parts. |
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| 11 | Switch off engine and remove brake pedal jack (4) with adapter. | Fig 1 | |
| Fig 2 | |||
| 12 | Reduce vacuum in brake booster (5) by depressing brake pedal several times. | ||
| 13 | Depress brake pedal and insert brake pedal jack (4) with adapter between brake pedal and driver's seat. | Fig 1 | |
| Fig 2 | |||
| 14 | Slowly turn back brake pedal jack (4) until the low-pressure manometer of the test equipment (3) displays the specified brake pressure. | Check values for leak test | *BE42.10-P-1001-19A |
| Fig 1 | |||
| 15 | Read off brake pressure on low-pressure manometer of test equipment (3) after the specified test period. | Check values for leak test | *BE42.10-P-1001-19A |
| If a drop in brake pressure is detected, ↓ determine leakage in brake system and replace defective component parts. |
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| 16 | Remove brake pedal jack (4) and adapter. | Fig 1 | |
| Fig 2 | |||
| 17 | Disconnect test equipment (3) from brake caliper (2) and screw bleed screw all the way into brake caliper (2). | ||
| 18 | Bleed front left brake caliper (2). | AR42.10-P-0010-02MFA | |
| Notice | Notes on handling, transport and storage of composite brake disks | AH42.10-P-9406-12LF | |
| 000 588 01 82 00 Filling unit | WS25.00-P-0016B | ||
| *BA42.10-P-1004-10ZA | |||
| 19 | Disconnect filling unit from brake fluid reservoir (1). | ||
| 000 588 01 82 00 Filling unit | WS25.00-P-0016B | ||
| 20 | Correct fluid level in brake fluid reservoir (1). | ||
| Model 243 | AP42.10-P-4210I | ||
| Model 118, 177, 247 | AP42.10-P-4210D | ||
| 21 | Seal brake fluid reservoir (1) with cap. | ||
| 22 | Install cover over brake fluid reservoir (1). | Model 118, 177, 247 | |
| 23 | Lower vehicle. | AR00.60-P-1006A |
HYDRAULIC BRAKE SYSTEM
| Number | Designation | Model 118 | Model 177, 247 | |||
|---|---|---|---|---|---|---|
| BE42.10-P-1001-19A | Check values for leak test | High-pressure test | Test period | Min | 5 | 5 |
| Brake pressure loss | % | 5 | 5 | |||
| Low-pressure test | Brake pressure | bar | 3 | 3 | ||
| Test period | Min | 2 | 2 | |||
| Brake pressure loss | bar | 0 | 0 | |||
HYDRAULIC BRAKE SYSTEM
| Number | Designation | Model 243 | |||
|---|---|---|---|---|---|
| BE42.10-P-1001-19A | Check values for leak test | High-pressure test | Test period | Min | 5 |
| Brake pressure loss | % | 5 | |||
| Low-pressure test | Brake pressure | bar | 3 | ||
| Test period | Min | 2 | |||
| Brake pressure loss | bar | 0 | |||
FRONT AXLE BRAKE CALIPER
| Number | Designation | Model 118 | Model 177 | ||
|---|---|---|---|---|---|
| BA42.10-P-1004-10ZA | Bleed screw at brake caliper | M10 | Nm | 18 | 18 |
FRONT AXLE BRAKE CALIPER
| Number | Designation | Model 243 | Model 247 | ||
|---|---|---|---|---|---|
| BA42.10-P-1004-10ZA | Bleed screw at brake caliper | M10 | Nm | 18 | 18 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1028-04A | Assembly cleaner | A 000 986 56 01 |