Does everyone know? Speaking of cars, people are always happy; When it comes to repairing cars, many people can't wait to pour out their bitter water. With the increasing popularity of cars in China, maintenance has become a part of the life of many car owners. But why is it that the maintenance cost of my car online is only a few hundred dollars, but a 4s maintenance costs several thousand dollars?

In fact, daily maintenance is a university question, and many car owners know little about 4S shops and repair shops. For 4s stores, in-store maintenance is their more important source of profit. There are many "secrets you can't tell".

Let's briefly introduce it first! The maintenance of a car is to maintain its original performance and reduce some unnecessary hidden dangers. It can also prolong the service life and make the car more durable. Therefore, regular maintenance is necessary. Just like people, there will be many skin care products, all of which are the same. This is mainly divided into two parts, one is major maintenance, and the other is naturally minor maintenance. There is still a difference.

That's right! Toothpaste can remove scratches besides brushing teeth? Yes, the ingredients of toothpaste are somewhat similar to those of some shaving waxes. In the face of the unfortunate scratches on the car, it is very expensive to brush a small piece in the car beauty shop, and it is easy to leave color difference. Your toothpaste will come in handy at this time.

Rinse the scratch with clear water first, then take a clean cloth or towel and dip a little toothpaste in it and rub it gently and repeatedly. After the scratches disappear or weaken, dry them with a wet towel. In fact, it is to use the abrasive ingredients in toothpaste to polish the scratches of car paint as new.

In fact, we usually refer to air filter, fuel filter and oil filter as "three filters". They play a filtering role and naturally need to be replaced when they are dirty. Many cars are serviced every 5,000 to 65,438+00,000 kilometers, and the maintenance staff will advise us to replace the three filters every time. We are eager to buy a car, and feel that people are really diligent to us, so we will change it every time.

In a word, four-wheel positioning and dynamic balance are tied together. If there is a problem with the wheel dynamic balance, the car will shake if it runs fast, and if there is a problem with the four-wheel alignment, there will be problems such as steering wheel deviation or tire eccentric wear. However, if the above problems do not occur, you can not do these projects at all. This kind of situation is usually settled with tens of dollars, but if the maintenance worker is heartless and charges you several hundred dollars, you have to thank him.