The engine is too hot
According to Bryan Fuller, a car engineer in Fuller Moto (USA), when the car lacks cooling water, the engine will quickly heat up and can exceed the safe temperature. If the temperature measuring needle on the dashboard increases rapidly or reaches red, it is a clear sign of a lack of cooling water.
Temperature warning on the dashboard
Most modern cars have a cooling temperature sensor. When the cooling water level drops, a warning light or a "Check coolant level" notification will appear. Mark Davidson, an expert at Mechanic base (USA), emphasized that this is a sign that should not be ignored, because the engine can be seriously damaged if it continues to operate without enough cooling water.
Sweet smell from the engine compartment
Refrigeration water often contains ethylene glycol, a compound with a characteristic sweet smell. If you notice this smell while the vehicle is running or after stopping, there is a high possibility of a leakage of cooling water from the pipeline or air conditioner. A small leak may not cause immediate consequences, but if not treated promptly, it will lead to serious loss of cooling water.
Refrigerative water leaked under the underground vehicle
If you see a green, orange or pink puddle of water under the vehicle after parking, it may be a sign of a cooling water leak. Leaks can come from a heat pump, pipes or cooling water pump. Timely inspection and repair will help avoid serious damage.
Fresh water or white smoke from the capo lid
When the water does not cool enough, the engine can get too hot and cause steam or white smoke from the engine compartment. This is a sign that the cooling system is no longer operating effectively. David Long, a maintenance expert at AutoBytel, recommends turning off the engine immediately and checking the cooling water level.
The above signs are an early warning of lack of cooling water. If you notice any symptoms, check the cooling water level immediately and supplement if necessary. At the same time, check the cooling system to detect and fix leaks. ignoring these signs can lead to serious engine damage, causing unnecessary repair costs.
