CAUSE | SOLUTION |
| Too little coolant system | The expansion tank must be filled completely up to the mark. Check system for leaks |
| The thermostat opens the coolant | Check whether warm the upper radiator hose. If not, check the thermostat, optionally replacing |
| Faulty water pump | Remove and inspect the water pump |
| Faulty sensor coolant temperature gauge | Check sensor |
| Faulty coolant temperature | Check the operation of the device at the station |
| Faulty surge tank cap | Perform pressure test at the station |
| Too weak V-belt of water pump | Check and adjust the tension |
| Dirty radiator cooling plate | Blow the radiator with compressed air from the engine |
| Radiator clogged inside the deposited scale or rust. Radiator heat only in the upper part and the lower coolant hose radiator does not heat up | Replace radiator |
| The fan does not work | Check the reliability of the electrical contacts at the temperature sensor and the engine fan. Check sensor. Check the wiring on the wiring diagram, if necessary, replace the motor |
| Faulty sensor, circulation pump | Check sensor, circulation pump |
