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Maintenance must be regarded as believing.
Maintenance must be regarded as believing.

Regular repair shops in the market will generally determine the maintenance content according to the condition of the vehicle and the owner's car when maintaining the vehicle. Some informal repair shops will solemnly tell the owner to follow the instructions of the car when maintaining the car. This seems professional, but it's not.

Because the vehicle's instructions are agreed according to the general situation: the owner will replace the parts after driving 5000 to 1000 kilometers. Therefore, many car owners will choose to do maintenance or change parts after 5000 kilometers. In fact, for car owners who only drive in urban areas, as long as they carry out maintenance within 1000 km, they will not bring any losses to their vehicles.

If a maintenance shop follows the lower limit of the manual for every vehicle that needs maintenance, the profit will be twice the original normal maintenance cost.

Replacing the three filters is the easiest to be tampered with.

The three filters must be replaced during car maintenance. However, some repair shops often do something when replacing the three filters for vehicles. However, car owners generally can't know the real situation of replacing the three filters, and they won't care if they change a few. See the repair shop. Therefore, some informal repair shops will cut corners and only replace two of the three filters at most. In order to increase profits, either the air filter or the gasoline filter should be omitted.

Generally speaking, the three filters should be replaced once when the vehicle travels to 15000 to 20000 kilometers, that is to say, in terms of maintenance times, it is enough to change once every once in a while.

Changing the oil will also "brain".

In order to save money, the repair shop will also use some "brains" when changing oil. The oil demand of each car is different. Generally, Jetta needs 4 liters of engine oil, Fukang needs at least 3.2 liters and Alto needs about 3 liters. The standard is to add oil to the upper limit of the bending area of the dipstick.

The way to judge whether the oil has been changed is to show the owner the mimeographed copy of the dipstick after the repairman measures it with the dipstick. However, this does not mean that the oil has been replaced with a new one. The reason is that in order to reduce the cost, maintenance workers always measure the remaining oil in the car with a dipstick before adding oil to the car, and then make up the insufficient part.

When the owner came to pick up the car, the maintenance union took a used empty oil bottle and told the owner the brand and quantity of oil to be replaced. Under normal circumstances, after the vehicle is filled with oil, if the vehicle is not started, the oil is slightly transparent when the cover is opened, but once the vehicle is started, the oil will become turbid.

So after adding the oil, the repair union took the car out for a spin, so that the owner could not tell whether it was a new bottle of oil or a mixture of old and new oil. This kind of mixed oil is harmful to vehicles.

Owner's maintenance must be "seeing is believing".

For these situations encountered in vehicle maintenance, first of all, vehicles mainly choose maintenance stations with comprehensive maintenance qualifications, and regular maintenance stations must have business licenses, business licenses, technical inspection certificates and road transport business licenses.

For vehicles that need secondary maintenance and vehicle maintenance, only maintenance companies with primary and secondary qualifications are qualified. In addition, in the process of maintenance, if spare parts need to be replaced, the items such as "factory name, address, telephone number, registered trademark and implementation standard" on the outer packaging must be clearly seen, and the product model, origin and specifications should be indicated on the maintenance list; Don't ignore your right to know, seeing is believing. At the same time, the owner can also explain the price according to the maintenance management system of this province.

The owner can observe some details during the acceptance to test the maintenance effect. For example, the bolts fixed or connected to an assembly should all be of the same label or model, especially the bolts in key parts are not allowed to be replaced by other bolts.