When washing the car in the hot sun, the convex lens effect formed by water droplets will cause local high temperature on the upper layer of the car paint. After a long time, the car paint will lose its luster. If waxing at this time, it is also easy to cause uneven body color. Therefore, the car washing and waxing are carried out under the condition of shelter. If not, Mercedes Benz maintenance is recommended to be carried out in the morning and evening on cloudy or sunny days. The owner should understand the following correct maintenance knowledge.
Imported tyres - not applicable
Some people like to emphasize "import" when buying tires. The new tires launched abroad have a fatal defect for domestic users, that is, they are not applicable. The flat road surface in Europe is quite different from the road conditions of the second ring road and the Third Ring Road in Beijing. It is difficult for tires suitable for European road conditions to have a good performance in Beijing. In particular, the impact resistance of the sidewall is obviously acclimatized. Just like wearing Italian leather shoes on gravel roads, sidewall unpacking is inevitable. After the domestic joint venture production of some foreign brand tires, a layer of cord fabric is added on the side of the tire according to the domestic road conditions, which greatly enhances the impact resistance of the sidewall. The tires produced by the joint venture can completely replace the imported goods in terms of performance.
The new battery is not charged -- shortening the service life
The charging of the battery is called the initial charging, which has an impact on the service life of the battery. If you do not charge, that is, add "water" for direct use, the capacity of the battery is not high and the service life will be shortened; If directly charged, it will also shorten the service life. Generally, the initial charging of the battery is after filling the electrolyte, and it can be installed and used after charging with a small current for about 1 hour.
Water tank "boiling" quick water filling - cylinder cracking
When the weather is hot, as soon as some drivers see the "boiling" phenomenon in the water tank, they are worried that the engine temperature will rise again, and immediately turn off the engine and add water. This practice is wrong. It is very likely to cause the cylinder head to crack due to sudden cold. If the water tank "boils", the general correct method is to stop immediately and let the engine idle to continue heat dissipation; At the same time, open the hood to improve the heat dissipation speed. Turn off the engine after the cooling water temperature decreases. At this time, if the amount of cooling water is insufficient, add it slowly to prevent the cylinder head from cracking due to sudden cooling.
Vehicles not used for a long time or short distance vehicles -- parts damaged
Although some people have become car owners, they are usually "unwilling" to drive. Liaobu Mercedes Benz garage believes that they only drive out during holidays. In fact, this way of driving is very harmful to the car. The surface of transmission parts such as engine and gearbox will rust due to direct contact with air, and the service life of battery will be affected by long-term natural discharge.
A good way is to run the car every few days for 30 or 40 minutes. In addition, always using short distance vehicles will also hurt the car. The car is moving at any time, but it can't drive far, which is an important reason for hurting the car. The engine parts on the car are seriously worn between the engine start and the stable stage. The power consumed by the battery to start the car takes about 20 minutes to make up. Such a habit of using the car is easy to make the car go wrong early.
Washing the car is like taking a bath -- damaging the air conditioner
In case of weather, the temperature rises, the dust increases, and the car body is easy to get dirty. The frequency of car owners' car washing also begins to rise. Many car owners also hope to get very complete when washing the car like bathing themselves. However, it should be noted that the appearance of the car air conditioner must be kept dry. If the car air conditioner is accidentally wet, it will affect the service life of the car air conditioner