What kind of car is the best to repair? What kind of car is the hardest to repair? You may not think of the answer.

After working in the auto repair industry for a long time, people often ask you: What car is the best to repair? What kind of car is the hardest to repair? On this issue, there is actually a jargon in the auto repair industry: cars repaired by others are the most difficult to repair, and cars that can't be repaired at all and accident cars are the best to repair.

Why is the car repaired by others the most difficult to repair? Because you don't know which parts have been repaired by the previous maintenance personnel, whether the replaced spare parts are qualified, whether the maintenance process is standardized, whether new faults have been added because of maintenance mistakes, and even human faults. You need to rule out all these possibilities before dealing with the initial failure. I once repaired a car, but it was badly shaken. Many parts were replaced in several repair shops, but they were still not repaired. Finally, I checked all the front parts for two days, and finally found that there was a blockage in the extremely hidden place of the intake pipe, and excess air entered the engine, which led to the mixture being too thin and the engine vibrating. After installing this plug, the fault disappeared immediately. I don't know if this is the fault of the original factory or the human error in the later period. If I had taken over from the beginning, I wouldn't have had so much trouble.

Cars that can't be hit at all and accident cars are best repaired, because in this state, you can completely restore the function of the car by replacing any parts of the car according to the routine maintenance process. For example, if the engine can't start, you can check the circuit first, then check the oil circuit, and finally check the timing and cylinder pressure. Check and replace all suspicious parts one by one, and then assemble them according to the principle of "good ignition timing, good oil intake and high cylinder compression". Almost nothing can be repaired. Another example is an accident car, which is easier to handle. It is completely dismantled, and all the damaged parts are replaced. Pay attention when assembling, it is easy to repair. Many accident cars seem to have lost their appearance after being hit, and they are still as bright as new after being repaired. That's the reason.

As for some cars that are easy to repair, some cars that are difficult to repair and so on. , mainly reflected in the difficulty of disassembling parts and complicated faults. In this respect, Japanese cars are the best, with the largest maintenance space, reasonable layout of all parts and convenient disassembly. At the same time, its electrical circuit layout, electrical system principle design and mechanical principle design of all parts are very conventional, and many parts can analyze the working principle at a glance, so the fault analysis is relatively simple and it is not easy to appear serial faults. Therefore, repairing Japanese cars is relatively worry-free and has the lowest technical content. In addition, the failure rate of Japanese cars is generally not high, and there are few repair shops specializing in Japanese cars. There is a joke that people have ten deadly behaviors, one of which is to open a repair shop specializing in Japanese cars.

Secondly, German cars, especially low-end German cars, are almost as difficult to maintain as Japanese cars, especially in China, where there are a large number of low-end German cars, experienced repairmen, complete accessories, low prices and relatively easy to maintain. The maintenance of German mid-to high-end models is more difficult. The most important thing is that the technology is advanced and complicated. If you don't know the working principle and circuit design principle, it is difficult to maintain. As for the disassembly and assembly of parts, it is relatively easy. At least, it is not too difficult to replace some common parts and wearing parts, and there is enough maintenance space. American cars are a little more complicated than German cars, and the disassembly design of some parts is not very reasonable. It is often necessary to take a lot of things apart for a small part. For example, it is extremely difficult for Fox to change the air conditioning filter.

However, the design of French cars is the most anti-human, with compact parts and completely unconventional design, so it is particularly troublesome to repair. Some parts of the operating space is particularly small, which makes people feel that they can't get rid of it at first sight. In many cases, it is necessary to remove many peripheral parts, such as Peugeot air exchange filter and air conditioning filter, to remove a very small wearing part. This is the simplest maintenance operation, but it is enough to make you doubt your life. In addition, the faults of French cars are complicated and there are many serial faults, so many repairmen don't like to repair cars. Especially mechanics who are hardly used to repairing Japanese cars and German cars and then repairing French cars.

But no matter how hard it is, it can't beat a powerful auto mechanic. In my opinion, in all mechanical maintenance industries, automobile maintenance is the type of work with the highest technical complexity, the highest technical content, the most difficult maintenance, the greatest labor intensity, the longest training time and the need for lifelong learning. The wisdom of a repairman is limitless. No matter how difficult the breakdown is, no matter how difficult it is to disassemble the car, they can get rid of the disease and rejuvenate. Therefore, when repairing the car, you should understand them more and give them more time. They will repay you with full patience, a hundred times of care and a million times of care.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.