Remove/install/replace heater circulation pump - AR83.25-P-1170NKB
MODEL 117, 156, 176, 242 (except 242.89), 246 with CODE 581 (Automatic air conditioning) except CODE 228 (Auxiliary heater)
| 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 | |
| Notes on coolant | AH20.00-N-2080-01A | ||
| Remove/install | |||
| 1 | Switch off ignition and remove transmitter key | ||
| 2 | Release pressure in cooling system | ||
| 3 | Clamp off heater hoses (2, 3) with pinch-off pliers | ||
| 4 | Release clamps (5) at heater hoses (2, 3) and retract | ||
| Figure | |||
| 5 | Release and disconnect electrical connection (4) | ||
| 6 | Disconnect heater hoses (2, 3) from coolant circulation pump (M13/5) | ||
| 7 | Remove coolant circulation pump (M13/5) from bracket (1) | ||
| 8 | Install in the reverse order | ||
| 9 | Pour in coolant and bleed cooling system | Model 117, 156, 176, 242, 246 with engine 270 with code 581 (Automatic air conditioning) except code 228 (Auxiliary heater) Model 117, 156, 176, 246 with engine 651 with code 581 (Automatic air conditioning) except code 228 (Auxiliary heater) Model 176 with engine 607 with code 581 (Automatic air conditioning) except code 228 (Auxiliary heater) |
AR20.00-P-1142NKB |
| 10 | Check area of coolant circulation pump (M13/5) for leaks |