Spring is coming, the weather is good, and the days of opening the skylights are also coming. Many car owners will consider "having skylights" as an important consideration when selecting cars. However, if they only use the skylight as a cool display, it would be too wasteful. In fact, the sunroof has a lot of useful features that can help us solve problems in the car. Below, the car for everyone talks about these functions and maintenance tips of the car sunroof. First, the function of sunroof 1, ventilation When the car runs at high speed, the air flows rapidly from the surroundings of the car. When the daylight is opened, a negative pressure zone is formed outside the car. Because the pressure inside and outside the car is different, the air in the car can be taken away to achieve the purpose of ventilation. Therefore, everyone recommended that you may wish to open the skylight when the air is good, remove the harmful substances accumulated in the car, eliminate the car smell. In addition to “detoxifying†the car, opening the sunroof in the summer can also quickly remove heat. After the car is exposed to heat, the interior temperature is bound to be very high. Opening the door is a heat wave and people are very uncomfortable. At this point you can start the car, open the skylight, and turn on the air conditioner, using hot air to lift the cold air sinking principle and speed up the discharge of hot air inside the car. The cooling rate of this method will be 2-3 times faster than the air-conditioning alone. Summer is coming soon. Let's move on! 2, anti-fog Using the sunroof's negative pressure principle can also play the role of defogging. In spring and summer, when there is much humidity in the rain, if the side windows are kept closed during driving, the temperature difference between the inside and outside of the car will increase, and the front windshield glass will easily form a fog. Although most models are equipped with anti-fog devices, some of them are not as effective. Everyone reminds you that you only need to open the skylight to the ventilated rearward position to promote air flow, balance the temperature difference, and easily eliminate the mist in the front windshield. 3, noise reduction When the car is driving on a highway, the airflow outside the car is very large. If the air is changed through the windows at the time, not only will it cause great wind noise, but it will also cause the air flow to become confusing. If you open the sunroof, you won't change the airflow of the vehicle body too much. Not only can you use the negative pressure principle to achieve ventilation, but wind noise is also much lower than when you open the window. Second, the maintenance of the skylight After understanding the basic functions of the sunroof, everyone will come back to understand some practical sunroof maintenance methods and make the sunroof more durable. 1, check, clean the guide The sunroof can be safely and happily used under the condition of “no foreign matter, no deformation, and high degree of lubricationâ€. Therefore, the owner must develop the habit of inspecting and cleaning the sunroof rails in order to prevent the sand in the track from increasing friction and wearing parts. When lubricated, the Renren car can be lubricated with sunroof guide rail lubricants, or it can be replaced with industrial petrolatum. 2, check, replace the seal As with the body seal, the skylight seal also has a certain period of use. When inspecting the guide, it is also necessary to observe the use of the seal. If it is found that it has not been attached to the glass or shows signs of aging, it should be replaced promptly. Avoid accidents while driving. 3, check the drainage hole The skylight is not completely sealed. Even if the skylight is closed, rainwater can still enter the skylight gap. Therefore, it is best to check whether the drainage hole of the sunroof is blocked at a certain period of time and whether the drainage is normal and avoid seepage in the vehicle. If you find that the edge of the sunroof in the compartment will seep or even leak after every rain, it is better to check the blockage of the sunroof drainage hole. 4, the use of frequency should not be too high Although many owners like to drive in the skylight when the weather is good, the mechanical structure of the sunroof is much more delicate than that of the windows and doors, so the car reminds you to be careful not to overuse the sunroof. 5, try not to open the skylight bumpy section When the vehicle is driving on bumpy, uneven roads, the skylight is easily overturned, so it is best not to open the skylight at this time. The sunroof is not just a decoration that looks cool. It also has two practical functions: speeding air circulation in the car and preventing fogging in the windows. In addition, the sunroof is a more delicate configuration, everyone car reminder, usually we in addition to enjoying the benefits of sunroof, but also pay attention to the maintenance of sunroof, so that it can serve us longer. After the strategic partnership between Renren Automotive and Minsheng Bank Credit Card Center, the first product for the exclusive use of the customized second-hand car has been put on the line. All users who purchase cars in the Renren car can enjoy exclusive phased preferential services. The first batch of covered cities include the following ten: Beijing, Shanghai, Guangzhou, Shenzhen, Zhengzhou, Taiyuan, Xiamen, Hefei, Chongqing and Chengdu. 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