The system consists of an engine cooling jacket, radiator, water pump, thermostat, expansion tank and connecting hoses and tubes. The heater radiator is also connected to the cooling system. The pressure in the system creates a water pump, which is driven by the camshaft drive belt.
The radiator has an electric fan that turns on and off depending on the temperature of the coolant. The temperature is determined by the fan activation sensor installed in the radiator. Electric fan has two rotation speeds (see table. Coolant temperature at which the fan turns on,°С).
Warning! The coolant is odorless, poisonous and causes severe food poisoning if ingested.
Warning! Inspect and repair the cooling system when the engine is cold, unless otherwise noted. Otherwise, you may be injured (severe burns), because the system is pressurized when the engine is warm.
Coolant temperature at which the fan turns on,°С
Working mode | Gasoline engines | Diesel engines | ||
first | second speed | first | second speed | |
Inclusion | 92 – 97 | 99 – 105 | 91 – 97 | 99 – 105 |
Shutdown | – | – | 84 – 91 | 91 – 98 |