Replacing the three filters is the easiest thing to do when doing hand and foot maintenance.

【Car owner's home car knowledge】When car owners regularly maintain their car, the repair shop will deliberately add unnecessary projects or reduce the accessories that need to be replaced to make huge profits. Three of the matters are the easiest to be hidden by the repair shop.

Cars usually need maintenance every time in about 3 months. According to this person, when regular repair shops on the market maintain their vehicles, they generally determine the maintenance content based on the vehicle condition and the owner's car usage. The person revealed that when some irregular repair shops maintain their vehicles, they will tell the owners to follow the car instructions with a high sound. This statement seems very professional, but the facts are not.

He said that because the vehicle's instructions are all agreed based on common circumstances: the owner will change the parts when driving 50 to 10,000 kilometers. Therefore, many car owners choose to do maintenance or replace parts when they reach 5,000 kilometers. In fact, for car owners who are just driving in the city, as long as they are maintained within 10,000 kilometers, they will not cause any loss to the vehicle. He emphasized that he had roughly calculated that if a repair shop conducts every vehicle that needs maintenance according to the lower limit of the instructions, the profit will be twice the original normal maintenance cost.

Replacing three filters is the easiest to be tampered with

【Car owner's home car knowledge】When car owners regularly maintain their car, the repair shop will deliberately add unnecessary projects or reduce the accessories that need to be replaced to make huge profits. Three of the matters are the easiest to be hidden by the repair shop.

Cars usually need maintenance every time in about 3 months. According to this person, when regular repair shops on the market maintain their vehicles, they generally determine the maintenance content based on the vehicle condition and the owner's car usage. The person revealed that when some irregular repair shops maintain their vehicles, they will tell the owners to follow the car instructions with a high sound. This statement seems very professional, but the facts are not.

He said that because the vehicle's instructions are all agreed based on common circumstances: the owner will change the parts when driving 50 to 10,000 kilometers. Therefore, many car owners choose to do maintenance or replace parts when they reach 5,000 kilometers. In fact, for car owners who are just driving in the city, as long as they are maintained within 10,000 kilometers, they will not cause any loss to the vehicle. He emphasized that he had roughly calculated that if a repair shop conducts every vehicle that needs maintenance according to the lower limit of the instructions, the profit will be twice the original normal maintenance cost.

Replacing three filters is the easiest to be tampered with

The easiest thing to be tampered with is the three filters of the car. The person mentioned that when car maintenance, three filters must be replaced. However, some repair shops often do some tricks when replacing three filters for vehicles. Car owners generally cannot know the real situation of replacing the three filters, and they will not care about how many they have changed. It depends on the repair shop! Therefore, some irregular repair shops will cut corners, and only two of the three filters will be replaced at most. In order to increase profits, they either save the air filter or omit the gasoline filter. Generally speaking, the three filters are replaced once when the vehicle is driven to 15,000 to 20,000 kilometers, which means that in terms of maintenance times, it is enough to change one at a time. The person believes.

Change the oil will also make you think

In addition, the person also revealed that in order to save money, the repair shop will also have some brains when changing the engine oil. The oil required by each vehicle varies. Generally, Jetta cars need 4 liters of engine oil, Fukang needs at least 3.2 liters, and Alto needs about 3 liters. The standard is to fill the oil to the upper limit of the dipstick curve area. At present, how to distinguish whether the engine oil has been replaced is just to check the dipstick for the car owner after the maintenance worker uses a dipstick to show the mimeograph of the dipstick. However, this does not mean that new engine oil has been replaced. The reason is that in order to reduce costs, the maintenance worker usually uses a dipstick to measure the amount of engine oil left in the car and fill in the insufficient part. When the owner comes to pick up the car, the repairman will take a used empty oil bottle and tell the owner to change the brand and quantity of oil.

Generally speaking, if the vehicle does not start the car after adding oil, the oil you see when you open the lid is slightly transparent, but once the vehicle is started, the oil will become turbid. Therefore, after the repairman has added the engine oil, he will drive the car out for a walk, so that the owner can't tell whether the engine oil is added or the engine oil mixed with new and old engine oil. The oil mixed in this way will damage the vehicle. The person said.

Car owners must be aware of their maintenance

Regarding these situations encountered during vehicle maintenance, Yan Yan, the Vehicle Department of the Transportation Management Bureau of the Jiangsu Provincial Department of Transportation, said that first of all, when car owners maintain their cars, they must choose a repair station with comprehensive maintenance qualifications. A formal repair station must have a "Industrial and Commercial Business License", "Business License", "Technical Review Certificate", and "Road Transport Business License".

For vehicles that require secondary maintenance and vehicle repair, only maintenance companies with Class I and Class II qualifications are qualified.

In addition, during the maintenance process, if you need to replace spare parts, you must clearly see the factory name, factory address, telephone number, registered trademark, implementation standards and other items on the outer packaging, and indicate the product model, origin, and specifications on the repair form; do not ignore your right to know, and be realistic. At the same time, car owners can also explain the price according to the province's maintenance management system.

It is best to sign three major items with the repair shop before maintenance: maintenance records, settlement lists, and repair contracts. This can be used as a basis when disputes arise in the future. Chief Yan said that car owners can observe some details during acceptance to detect the effect of maintenance. For example, the bolts fixed or connected to a certain assembly should be of a label or model, especially the bolts in key parts are not allowed to be replaced by other bolts.

Related recommended readings:
Five car "skin" treatment plans should be prepared
http://news.16888.com/a/2013/1101/290706.html