Checking Brake Booster - AR43.10-P-0325S
Model 223
except code 200 (Conditionally automated driving)
except code 503 (Remote-controlled parking)
except code ME10 (Hybrid vehicle (plug-in, PHEV))
| 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 | Brake fluid notes | AH42.50-P-0001-01A | |
| Notes on safety-relevant components | AH00.00-Z-0019-01A | ||
| Remove/install | |||
| 1 | Depress brake pedal several times with engine switched off so that vacuum in brake booster (7) is reduced. | ||
| 2 | Open engine hood and position upright. | ||
| 3 | Connect vacuum tester (4) with test connection (2) to brake booster (7). | AR43.10-P-0024-01V | |
| Fig 2 | |||
| Fig 1 | |||
| 4 | Connect test equipment (5) with connection fitting to brake caliper. | Use correct connection fitting (pitch, centering cone, etc.). Leaks and measurement errors can otherwise occur. |
|
except code 200 (Conditionally automated driving) except code 503 (Remote-controlled parking) except code ME10 (Hybrid vehicle (plug-in, PHEV)) except code Z07 (B7 armoring on special protection version) Model 223 (except 223.182) with code Z07 (B7 armoring on special protection version) except code 200 (Conditionally automated driving) except code 503 (Remote-controlled parking) except code ME10 (Hybrid vehicle (plug-in, PHEV)) Model 223.182 except code 200 (Conditionally automated driving) except code 503 (Remote-controlled parking) except code ME10 (Hybrid vehicle (plug-in, PHEV)) Bleed screw on brake caliper |
*BA42.10-P-1002-10CA | ||
| 5 | Attach pedal force meter (6) to brake pedal. | ||
| 6 | Start engine and generate test pressure. | except code 200 (Conditionally automated driving) except code 503 (Remote-controlled parking) except code ME10 (Hybrid vehicle (plug-in, PHEV)) except code Z07 (B7 armoring on special protection version) Model 223 with code Z07 (B7 armoring on special protection version) except code 200 (Conditionally automated driving) except code 503 (Remote-controlled parking) except code ME10 (Hybrid vehicle (plug-in, PHEV)) Check valve/pressure in vacuum system of brake booster If there is a problem, ↓ check, check valve (1). |
*BE43.10-P-1006-01F |
| AR43.10-P-0023S | |||
| 7 | Replace seal between brake booster (7) and master brake cylinder. | If the specified test pressure has not been reached or if it drops off straight away and the check valve (1) is not defective. | |
| AR42.10-P-0300S | |||
| 8 | Apply specified force to brake pedal and read off line pressure on test equipment (5). | ||
except code 200 (Conditionally automated driving) except code 503 (Remote-controlled parking) except code ME10 (Hybrid vehicle (plug-in, PHEV)) except code Z07 (B7 armoring on special protection version) Model 223 with code Z07 (B7 armoring on special protection version) except code 200 (Conditionally automated driving) except code 503 (Remote-controlled parking) except code ME10 (Hybrid vehicle (plug-in, PHEV)) Brake line pressure |
*BE43.10-P-1003-01F | ||
| 9 | Disconnect vacuum tester (4) with test connection (2) from brake booster (7). | AR43.10-P-0024-01V | |
| Fig 2 | |||
| Fig 1 | |||
| 10 | Detach test equipment (5) with connection fitting from brake caliper. | ||
| 11 | Remove pedal force meter (6) from brake pedal. | ||
| 12 | Bleed brake system. | AR42.10-P-0010S |
CHECK VALUES FOR PNEUMATIC BRAKE BOOSTER
| Number | Designation | Model 223 except code Z07 (B7 armoring on special protection version) |
Model 223 with code Z07 (B7 armoring on special protection version) |
|||
|---|---|---|---|---|---|---|
| BE43.10-P-1003-01F | Brake line pressure | Intake manifold Force on brake vacuum 0.75 to pedal 0.8 bar | 50 N | bar | 22, 30 | 22, 50 |
| 100 N | bar | 43, 70 | 41, 30 | |||
| 150 N | bar | 64, 20 | 60, 40 | |||
| 200 N | bar | 84, 90 | 79, 60 | |||
| 250 N | bar | 105, 90 | 87, 40 | |||
CHECK VALUES FOR PNEUMATIC BRAKE BOOSTER
| Number | Designation | Model 223 except code Z07 (B7 armoring on special protection version) | Model 223 with code Z07 (B7 armoring on special protection version) | ||
|---|---|---|---|---|---|
| BE43.10-P-1006-01F | Check valve/pressure in vacuum system of brake booster | Test pressure (vacuum) | bar | 0, 75...0, 8 | 0, 75...0, 8 |
| Test period | s | 30 | 30 | ||
| Permissible pressure loss | bar | ≤0, 2 | ≤0, 2 | ||
FRONT AXLE BRAKE CALIPER
| Number | Designation | Model 223.182 | Model 223 (except 223.182) with code Z07 | |
|---|---|---|---|---|
| BA42.10-P-1002-10CA | Bleed screw on brake caliper | Nm | 18 | 18 |
FRONT AXLE BRAKE CALIPER
| Number | Designation | Model 223 (except 223.182) except code Z07 | |
|---|---|---|---|
| BA42.10-P-1002-10CA | Bleed screw on brake caliper | Nm | 18 |