[Auto repair knowledge]4S shop maintenance shady

airbagI dare not only repair it but not change it, and save the oil when changing the oil. At present, many car owners are reporting that the problem has not been solved after the vehicle has been repaired, but the money is not low; the replacement parts are all new, but it always feels wrong to take a closer look; the fuel product of the rated kilometer is not running The mileage that should be reached is gone... anyway,carI keep cultivating and worrying things keep coming out, but I don't know where the problem is. Recently, a senior maintenance technician who has been working in a 4S shop of a joint-venture car brand for many years revealed to reporters the secret "make money" secrets of the car 4S shop. The price of the original factory parts is exchanged for the vice factory parts For example, the unnamed master said that the current market for the air grid of a genuine factory is about 60 yuan, while the sub-factory (commonly known as parallel cargo) is only 10 yuan, and the difference is as much as 50 yuan. In addition, many automobile 4S shops have long used the method of surreptitiously replacing the original factory parts with the auxiliary factory parts, and the money paid is indeed the price of the original factory parts. "Car owners need to pay attention when replacing parts. Usually the auxiliary parts feel lighter, the workmanship is rough, and the material is relatively hard.AccessoriesWithout these phenomena, for example, the qualified air grid filter still has a fluffy feeling. According to the master, if the vehicle uses auxiliary parts, it will directly lead to weak acceleration, increased fuel consumption, and sometimes flameout or failure to start. "Almost all car 4S shops now use similar methods to deceive customers' money to varying degrees." said the reporter. For this reason, he reminded the car friends that when the car is repaired or replaced, the invoice must be obtained and kept, and if there is a problem, there can be evidence to check. In addition, when buying a car, it is best to bring an expert to help you check the car, so that no one can do anything. Repair parts as new parts for sale "When replacing car parts, it’s best for the car owner to be on site, for exampleShock absorber, Electronic oil pump,Fan,bumper, Fenders, etc. Otherwise, some people will treat the old as the new, and remove the original parts that have no problem and replace them with old repair parts. " It is understood that the so-called repaired parts are mainly to re-polished and spray-painted some discarded parts into "new". They were replaced on the vehicle while the owner was not on the spot, saying that they were brand new parts. Finally, the owner spent money to sell an old part. The master revealed that many car 4S shops now adopt similar methods to make profits, and the profits made by repairing parts alone are around 50%-80%. In addition, some 4S have more "extreme" means, repairing the airbags directly related to the life of the car owner, and not replacing it at all, taking the life of the car owner as a trifling matter. According to reports, after the airbag blasts, according to national requirements, all car airbags must be replaced, and the black heart 4S shop only reinstalls the damaged airbags and repairs the surface, which is fatal. "When the airbag blasts, the front instrument panel in the cab must be replaced as a whole. If it is repaired, the instrument panel will bulge in many small packages under the sun's exposure, and the price of the two is very different." The master emphasized, The car mainly carefully identifies whether the repaired part is a repaired part, and recommends that the car owner take the replaced part by himself, so as to prevent the 4S shop from harming other people. Keep one hand when changing the oil Everyone knows that the lubrication of oil is indispensable for a car to run fast. The fastest consumption of a vehicle is oil except for gasoline. "The oil filter and oil must be changed every 5,000 kilometers in a car. Even if these very common oil products are changed, the car owner must pay attention to avoid lack of weight." The master told reporters. "Automotive oil is a pot every 4 liters. Generally, it takes about 3.3 liters to change the oil in a vehicle. When changing the oil, the owner must pay attention to whether there is an anti-counterfeiting mark film on the mouth of the oil pot. It is recommended that car owners do not add low-quality engine oil." In addition to paying attention to adding engine oil, there are also tricks to discharging waste engine oil. If it is not clean, the remaining residual value will cause serious damage to the engine. In addition, if there is residual oil in the cylinder, the 4S shop can add a lot of new oil and sell the remaining oil to other car owners. The master suggested that when discharging used engine oil, the maintenance personnel must be instructed to thoroughly drain the residual value engine oil in the cylinder to avoid cutting corners in 4S shops. Related: ·[Knowledge of visual reversing image]On-boardCameraccd imaging principle
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