| Components |

| 1. Water inlet fitting |
2. Thermostat |
Troubleshooting Symptoms Possible Causes Remedy Coolant leakage • From the bleed hole of the water pump Visually check • Check leaks after about ten-minute warming up.
Removal • Disassembly of the thermostat would have an adverse effect, causing a lowering of cooling efficiency.
Description The PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of heater core. The PTC heater is an electric heater using a PTC element as an auxiliary heating device that supplements deficiency of interior heat source in highly effective diesel engine.