Remove/install circulation pump for low-temperature water circuit - AR09.41-P-6925NKE
ENGINE 780 in MODEL 242
| Risk of injury to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| Remove/install | |||
| 1 | Deactivate pre-climatisation with diagnostic system | ||
| AD00.00-P-2000-04A | |||
For non-observance the fan can otherwise begin to operate through external activation for pre-climatisation. The respective diagnostic function can be found in the control unit view under the tab "Actuations" in the menu item "Pre-climatisation". |
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| 2 | Clamp off coolant lines (3, 4) | AR09.41-P-6834NKE | |
| Notes on coolant | AH20.00-N-2080-01A | ||
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| 3 | Unfasten clamps (1, 2) on heater circuit circulation pump (M91/6) and detach coolant lines (3, 4) | ||
| 4 | Remove lower engine compartment paneling | AR61.20-P-1105NKB | |
| 5 | Disconnect electrical connection (5) from heater circuit circulation pump (M91/6) | ||
| 6 | Detach heater circuit circulation pump (M91/6) from holder (6) | ||
| 7 | Install in the reverse order | ||
| 8 | Pour in coolant and bleed low-temperature circuit cooling system | AR20.00-P-1142-04AK | |
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| Check | |||
| 9 | Check low-temperature circuit cooling system for leaktightness | AR20.00-P-1010NKE | |
| 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 | Perform an engine test run; check cooling system low-temperature circuit for proper function |