Remove/Install Power Steering Pump - AR46.30-P-0500RG
Model 190
| Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities. | No parts of the body or limbs should be within the operating area of mechanical components when moving components. | AS00.00-Z-0009-01A | |
| Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure.Risk of poisoning from swallowing hydraulic fluid. | Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses. | AS00.00-Z-0013-01A | |
| Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. | AS00.00-Z-0017-01A | |
| Deburr repair panels. | |||
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notice | Notes on working in engine compartment | AH60.00-P-0042-01RG | |
| Remove/install | |||
| 1 | Remove lower engine compartment lining. | Model 190.381 | AR61.20-P-1105RGB |
| Model 190 (except 190.381) | AR61.20-P-1105RG | ||
| 2 | Open engine hood and position upright. | AR88.40-P-1000RG | |
| 3 | Remove engine cover. | ||
| 4 | Suction off oil from expansion reservoir of the power steering system. | Thoroughly clean area around expansion reservoir before opening hydraulic system. Otherwise even the smallest dirt particles, introduced into the hydraulic system, can lead to malfunctions and total failure of the hydraulic system. |
|
| Fig 2 | |||
| 5 | Slacken V-belt (2) on belt tensioner (3) and place to one side. | ||
| 6 | Remove screw (4) and release pressure line (5). | *BA46.30-P-1003-01E | |
| 7 | Unscrew screws (6) of holder (7) and remove holder (7). | *BA20.10-P-1008-01ZA | |
| 8 | Unscrew screws (8) and remove cover panel (9). | If screws (8) and cover panel (9) are installed. | |
| *BA00.10-P-1002-04A | |||
| 9 | Remove the bolt (10). | *BA46.30-P-1002-01E | |
| 10 | Unscrew screw (11), pull pressure line (12) out of power-steering pump (1) and seal openings with suitable stop plugs. | Thoroughly clean area around separating point before opening hydraulic system. Otherwise even the smallest dirt particles, introduced into the hydraulic system, can lead to malfunctions and total failure of the hydraulic system. |
|
| *BA46.30-P-1005-01E | |||
| Fig 3 | |||
| Fig 5 | |||
| 11 | Remove line (13) from power-steering pump (1) and seal openings with suitable stop plugs. | Thoroughly clean area around separating point before opening hydraulic system. Otherwise even the smallest dirt particles, introduced into the hydraulic system, can lead to malfunctions and total failure of the hydraulic system. |
|
| Fig 4 | |||
| Fig 5 | |||
| 12 | Remove screws (14). | *BA46.30-P-1001-01E | |
| 13 | Remove power-steering pump (1). | ||
| Check | |||
| 14 | Check toothing (arrows) on power-steering pump (1) and on refrigerant compressor. | If damage is found, ↓ Replace power-steering pump (1) or refrigerant compressor. |
|
| Model 190.381 with engine 178.9 | AR83.55-P-5310MNJ | ||
| Model 190 (except 190.381) | AR83.55-P-5310RG | ||
| 15 | Remove filter for steering gear oil. | Model 190 with code M032 (Black Series version) |
|
| When replacing the power-steering pump (1). | |||
| AR46.25-P-3400RG | |||
| 16 | Install in the reverse order. | ||
| 17 | Fill and bleed power-steering pump (1). | AR46.30-P-0010RG | |
| Check | |||
| 18 | Check oil level in expansion reservoir; correct if necessary. | ||
| AP46.00-P-4612A |
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143
| Number | Designation | 8.8 | 10.9 | |
|---|---|---|---|---|
| BA00.10-P-1002-04A | M6x1 | Nm | 9 | 13 |
COOLANT PUMP, COOLANT THERMOSTAT
| Number | Designation | Engine 178 | ||
|---|---|---|---|---|
| BA20.10-P-1008-01ZA | Bolt, low-temperature circuit pump bracket to front axle carrier | M6 | Nm | - |
| M8 | Nm | 9 | ||
POWER STEERING PUMP
| Number | Designation | Model 190 | |
|---|---|---|---|
| BA46.30-P-1001-01E | Bolt, power steering pump to bracket | Nm | 20 |
POWER STEERING PUMP
| Number | Designation | Model 190 | |
|---|---|---|---|
| BA46.30-P-1002-01E | Bolt, high-pressure line to pump bracket | Nm | 7 |
POWER STEERING PUMP
| Number | Designation | Model 190 | |
|---|---|---|---|
| BA46.30-P-1003-01E | Bolt, high-pressure line to holder on front axle carrier | Nm | 8 |
POWER STEERING PUMP
| Number | Designation | Model 190 | ||
|---|---|---|---|---|
| BA46.30-P-1005-01E | Bolt, high-pressure line to power steering pump | M6 | Nm | 8 |
| M8 | Nm | 18 | ||