Gasoline engine cooling circuit — device Carburetor engines of 1.2, 1.3, 1.5 l 1 - Coolant outlet 2 - To the heater 3 - From the heater 4 - To the radiator 5 - Water pump 6 - From the radiator 7 - Coolant...
Cooling circuit The cooling system consists in general terms of a radiator, a thermostat and an electric fan. The coolant supply is controlled by a thermostat. While the engine is cold,...
Antifreeze — general information The cooling system is filled at the factory with a mixture of water, antifreeze and anti-corrosion agent Antifreeze concentrate prevents damage to the cooling system...
Coolant replacement The coolant must be changed regularly as part of maintenance, see point 32.1 . Attention: When draining the coolant during repair work, it should be collected for later...
Removal and installation, thermostat check A thermostat with an increase in engine temperature ensures the passage of coolant to the radiator. If the thermostat fails, it does not open and the engine overheats....
Removal and installation of a radiator After a long run of the car in the thin channels of the radiator, clogging occurs from particles that have entered the coolant and lime deposits. Because of this, the...
Checking the tightness of the cooling system The tightness of the cooling system, as well as the operation of the drain valve on the radiator cap, can be checked using a special pressure tester. Such a device is...
Checking, removing and installing the fan motor Examination If the fan motor does not turn on, check the thermal switch first. Then check the fan motor as follows: Using 2 auxiliary wires, connect the motor directly...
Checking the Radiator Fan Relay The radiator fan relay is located in the relay box in the engine compartment. Remove the relay from the relay box. Apply battery voltage to pins 1 and 2 of the relay as...
Checking the thermal switch The thermal switch is attached to the bottom of the radiator next to the drain fitting. When a certain temperature of the coolant is reached, it turns on the electric...
Removal and installation of the pump of a cooling liquid The coolant pump is attached to the V-belt side of the engine block. It is beyond repair. In case of failure, the entire pump must be replaced. If the shaft seal is...