(1) A simple method for judging the leakage of automobile antifreeze 1 Visual inspection of coolant pot. If it is lower than the lower limit, it may be that the car has leaked antifreeze and needs to be supplemented with antifreeze.
2 The engine temperature indicator on the instrument panel lights up and the alarm temperature rises. For example, the temperature pointer of Jetta electronic combination instrument is above 90℃, indicating that the temperature has risen, and it is necessary to check whether there is coolant leakage.
(2) Causes and treatment methods of automobile antifreeze leakage The most likely reason for automobile antifreeze leakage is that the joint between the antifreeze tank and the water tank is not tightly sealed, or the rubber pipe is aging and cracked. If water enters the water tank frequently, it may be that the water tank is rusted, and another reason is that the water pipe was bitten by a mouse.
1 Check whether there is any leakage in the coolant pipeline, especially at the joint of the upper and lower water pipes of the radiator, the joint of the water outlet flange on the cylinder head and the water pipe, the joint of the warm air water tank and the joint of the water temperature sensor.
Treatment: Generally, it can be solved by applying sealant to the joint, reinstalling the water pipe and replacing the clamp.
2 Damage to coolant system components Damage to coolant system components will lead to coolant leakage and excessive engine temperature. Common fault parts are radiator, warm air box, water pump, water outlet flange and coolant tank (cover).
Solution: Replace the damaged parts to solve this problem. The radiator can be properly welded.