Is this car maintained in the 4S shop or outside? Is this car maintained in the 4S shop or outside? Let's start with the garage. There are many kinds of repair shops outside, such as 4s shops, which are more professional and formal, and general auto repair shops, such as street facade houses. There is no fixed maintenance model, any car can be repaired, or most of them specialize in Volkswagen Audi. Most auto repair shops usually have one or two experienced masters as their majors, and then take some apprentices to teach while trimming. The level is uneven. It is no problem to meet experienced masters. If you encounter an inexperienced person, such as the time I changed the air conditioner filter, the internal and external circulation switch will be broken, because many of them are internal and external circulation of electronic switches now. If the "small door" inside the air-conditioning filter element is forcibly lifted, it will be broken. Therefore, the center console must be removed for maintenance. And now many air-conditioning filter elements are double-sided, and some will be marked with "UP" (upward), but many maintenance workers didn't pay attention, saying that both sides are the same. For example, when changing the transmission oil of some models, all the oil must be drained with the help of professional instruments, and some must be drained after adding oil. These details need attention. The repair shop outside is not necessarily professionally trained by the manufacturer, and sometimes it even goes wrong. Although the garage outside is not professional enough to deal with a certain problem, after all, the garage outside often repairs old cars and cars with many problems, so it can be said that it is well-informed about small problems in the later period, such as abnormal engine noise, air conditioning failure, glass lifting failure and so on. Generally speaking, the advantage of an outside repair shop is that it is cheap and has rich experience in repairing some minor faults. Disadvantages are uneven levels, lack of professionalism in some car maintenance, lack of professional instruments, and poor after-sales service. Look at the 4s shop again. Nowadays, more and more electronic parts of automobiles have replaced the previous mechanical parts, so many of them have to be repaired in 4s shops, such as computer matching and decoding of engine gearboxes. Many maintenance workers in 4s shops graduated from auto repair schools and passed the comprehensive training of manufacturers. Although I didn't have much experience at first, I was single-minded. If some parts are difficult to repair, we will always consult the manufacturer and repair a few cars every day, which will ensure professionalism and solve the problem more officially. However, 4S stores may say: a new car is maintained and replaced with oil, machine filter and air filter outside during the warranty period. As long as there is a problem with the vehicle, some 4S stores will shirk that the oil, machine filter and the like are replaced outside, and the quality is not up to standard and cannot be guaranteed. When it is difficult to identify engine oil, the author thinks that if you are afraid of unnecessary trouble, you can consult 4S shop before maintenance. Or you can change the oil of important systems, such as power, brake and gearbox, or do it in a 4S shop. Air conditioners, air filters and other consumables can be considered for external exchange. We can do maintenance selectively. Do you know if the maintenance should follow the cycle in the maintenance manual? I think it's ok to follow the instructions. Many manufacturers guarantee the first insurance for free. Although you may feel that you haven't run many kilometers, these oils that need to be replaced also have a shelf life. If it is not replaced for a long time, it will oxidize and affect its use. This depends on personal choice. 4S maintenance is expensive, but if you have problems during the warranty period, you can always find them. External maintenance is cheap, but 4S may refuse the warranty on this ground! @20 19