Don't forget this after buying a used car.

With the speed of car upgrading and car replacement getting faster and faster, more and more cars with prices exceeding 10,000 yuan make used cars the first choice of many friends.

We know that we must do third-party testing when buying second-hand cars, so as to exclude (buy) cars with big problems such as accident cars, bubble cars and burning cars. So what do we need to do after buying a used car?

First of all, we must do a "big health care"

Engine maintenance is the most important thing. Replacing oil, oil filter and air filter will directly affect the condition of the engine. These things cost hundreds of dollars. If you don't replace it, the problem will be big, and the loss will outweigh the gain.

Remember to maintain the air conditioner. It is inevitable to clean the air conditioning pipeline and replace the air conditioning filter element. In addition, all brake fluid, antifreeze and gearbox fluid should be replaced.

The brake oil has been used for a long time, although it does not have much influence on the surface. However, when the vehicle is braked or driven downhill for a long time, the temperature of the brake oil will rise rapidly during the long time or emergency braking, which will directly lead to the rise of the boiling point of the brake oil, thus affecting the braking performance.

Clean the throttle valve. Under normal circumstances, it is also common to clean once every 20,000 kilometers and once every 8-9,000 kilometers.

So how do you judge whether to clean the throttle? If this happens, it should be cleaned!

1. The idle speed is unstable, and the car will shake obviously if it doesn't go on fire.

It is not easy to make a fire. It used to be possible to strike a fire once, but now it may be necessary to strike twice.

3. Accelerated response is slow. When you step on the accelerator, you won't accelerate immediately. It takes a second or two to accelerate.

4. When driving, the car will shake obviously when the throttle is fully released.

Then look at the degree of tire wear, first look at the date to judge whether the tire has been replaced, and then mainly look at the wear of the pattern to judge the use of the existing tire. Serious tire wear will affect the grip and handling, and it is easy to puncture.

Additional tips: for common ordinary vehicles, change the oil and filter every 5000- 10000 km, and change the gearbox oil every 60000-80000 km or every 3-4 years, and confirm the mileage. Brake oil is replaced every two years or 40,000 kilometers, and coolant is generally replaced every two years. Spark plugs are 40,000-80,000 kilometers according to the brand, batteries are 2-3 years according to their own use, and brake pads are 60,000-80,000 kilometers according to their own driving habits. Replace when the tread pattern depth of the tire is 65,438+0.6mm..

In fact, the most ideal car knowledge is to read the manufacturer's manual carefully. This manual is the conservative use and maintenance data given by the manufacturer within the scope of safe use. Do not exceed these data boundaries, or slightly exceed the boundaries, all within the scope of safe use.

Second, we must "kill the virus"

There is no need to wash the used car when you buy it back. After all, car dealers are good at washing cars. But sterilization and anti-virus are still necessary. After all, we don't know whether all kinds of cleaning liquids are poisonous or not, do we? !

Additional tips: for common ordinary vehicles, change the oil and filter every 5000- 10000 km, and change the gearbox oil every 60000-80000 km or every 3-4 years, and confirm the mileage.

Change the brake oil every two years or about 40,000 kilometers, the coolant every two years, the spark plug every 40,000-80,000 kilometers [according to the brand introduction], the battery every 2-3 years according to its own usage, and the brake pads every 60,000-80,000 kilometers when the tread depth is 1.6mm [according to its own driving habits].