Low coolant level Thermostat is faulty The engine is overloaded The radiator cap is faulty The radiator or oil cooler core is clogged The radiator screen is clogged The high pressure fuel pump is malfunctioning The fan is damaged The air cleaner is clogged The tension of the fan and alternator belts is loose The pulley grooves are worn The passages in the cooling system are dirty Defective temperature gauge or its sensor
Add coolant. Contact your authorized dealer. Check hydraulic relief valves. Install a new cover. Clean the radiator and oil cooler. Clean the grid. Contact your authorized dealer. Replace the fan. Clean the air purifier. Tighten the belts or replace them. Replace pulleys. Flush the cooling system. Contact your authorized dealer.