The weather is getting cold, what aspects should we pay attention to in car maintenance?

When the weather gets cold, car maintenance should pay attention to:

1. Always clean the car body: On rainy days for several days, the car body often contains sticky substances such as asphalt besides mud. If not cleaned in time, it is easy to be firmly attached to the car shell for a long time and difficult to remove. Pay attention to the bottom and lower part of the vehicle, which is the place with the most dirt accumulation, which is difficult to clean and easy to rust or hurt the paint surface.

2. Protect the paint surface: The paint surface of the car body originally protects the car shell, and the acidic components in the rain have corrosive effects on the paint surface, which will also cause damage to the car body over time. Therefore, in the rainy season, it is best to give your car a paint maintenance. The simple and effective method is waxing, and the longer and effective method is sealing glaze. Both methods can prevent the car paint from fading and aging, thus protecting the car body from injury.

3. Chassis maintenance: In addition to the paint surface, the chassis is particularly prone to corrosion because it is close to the ground, so we must pay attention to the cleanliness and rust prevention of the automobile chassis. Chassis maintenance is generally done by professional automobile maintenance centers. The general steps are cleaning first and then antirust treatment, and the whole process needs to last for 30~40 minutes. Once the chassis rusts, the antirust effect can last for 3 months or even longer.

4. Check the circuit: for example, check the battery to see if the power is sufficient. On rainy days, car owners sometimes encounter the problem that the engine is not easy to start, and sometimes even if they barely start, they are dizzy. The biggest reason for this problem is that the humidity in the ignition system leads to leakage. The most important thing is to check the high-voltage line. Once the ignition system is damp, which leads to poor ignition and engine performance degradation, you can temporarily dry the inside and outside of the distributor and the wires with a dry paper towel or dry cloth. If it is aging and leaking, it must be replaced in time.

5, brake water removal: more rain, high air humidity, car brake fluid is easy to absorb water. Some vehicles with serious brake fluid water absorption can see water droplets on the brake fluid oil cover. Because the automobile braking system is mostly double-tube vacuum-assisted hydraulic braking, the brake fluid that transmits braking force has strong water absorption. If water enters the brake fluid, the high temperature generated by friction will make the water evaporate during braking. However, gas is compressible, and being compressed in brake fluid will cause braking failure or even failure. Once it is found that the automobile brake fluid absorbs water seriously, it should be sent to a professional repair shop to remove the water.

6, air conditioning dehumidification: it rains outside, and the car is naturally wet. In addition to opening the car door on sunny days to let the car bask in the sun, turning on the air conditioner or putting desiccant is also an excellent moisture-proof method. Most people are not very sensitive to the humidity in the car, and often only notice this problem after the cushion is wet. In fact, the increase of humidity in the car often causes some electronic equipment to work abnormally. For example, there is often a layer of fog on the surface of the CD in the car, which will make it difficult to read the disc. It is best to scrub it every once in a while. In order to avoid getting wet when installing the CD-ROM drive, do not install it under the floor and seat. It is better to install it at the height of the car body. In addition, in order to prevent the sound from getting damp, you can also put a small dehumidification box in the trunk.