Have you seen the fine lines on the rear windshield of your car? Do you know what these fine lines do? When driving on the road, I believe many careful riders will find that there is a very regular horizontal line on the rear window glass of many vehicles, either red or other colors.
Most people will think that these lines are the effect of the membrane attached to the car membrane, either for decoration or for sun protection... but not many people truly know the meaning of these thin lines.
In fact, these lines aren't built into the car's film, but they are already on the rear windshield, but they look more obvious when they are applied on the car's membrane. These lines are actually resistance wires. When the rear windshield fogs and blooms, the fog and frost are dispersed by heat, thus ensuring a clear rear sight line.
In winter, the temperature difference between the outside of the car is generally relatively large, or in the rainy season, it is very easy to condense into a layer of frost or water vapor on the windows of the car, so that the riders sit in the car. Can not see the scene outside the car, but we need to reversing or in the course of some traffic, at any time to understand the situation behind the car.
At this time, the line on the rear windshield of the car plays a key role, but it needs to be used in conjunction with the defrosting button in the car, which causes the frost or water vapor on the window glass to evaporate through the heating of the resistance wire. In this way, you can see very clearly when you look out of the glass behind the car.
The button is located next to the air conditioning and internal circulation buttons, and some owners do not know its function. According to a 4S official, among the owners he touched, the defrosting button was mistakenly thought to be a large number of outer-cycle buttons, and most of them did not understand why the rear windshield line was dripped.
Reminder:
The defrost button can only be pressed during fogging and defrosting, and must be used after the vehicle is started. Otherwise, it will consume power and be detrimental to the car battery. The resistance wire on the rear windshield should be used in conjunction with the defrosting button, and care should be taken when washing or maintaining the vehicle to avoid damage due to scratches.
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