Second -hand cars have oil leakage, more common，So the chassis part is a required inspection item when checking，Go down to see if there is any oil point on the chassis，Is there any oil pollution in the chassis，Is there any oil stain near the engine; in addition, the second -hand car will also have a battery feedback，At the same time, it depends on whether the battery pile head has corrosion and loose pile head，Discovering loosening must be processed in time。

Pull out the oil ruler to see if the engine lacks motor oil，The color of the oil currently used。Remember to check the car when the oil ruler is required for three minutes.，Pull out the oil ruler at this time wipe it clean with the cotton cloth，Then insert the oil ruler in pulling seabet loginout，View whether the oil ruler is within the standard scale。When wiping the oil ruler，You can understand the color of the machine oil，If the oil is very dark，Then you have to consider，After all, if the car is replaced by the car oil, it does not even replace it regularly，So it means that this car is not very caring for!       

Carefully listen to the sound inside the engine，Is there any noise? Such as knocking tank、Da Da's sound of the valve, etc.。The engine with good working conditions has only one kind of uniform sound after all，No murmur。If possible，It is recommended someone to help step on the engine and listen to the sound，At the same time, let people block the exhaust port with rags，If the engine sounds sinks and the flameouts will be leaked within a few seconds。       

1、Pay attention to changes in the speed meter pointer when the cold starts，Normal conditions will be hit to about 1600 rpm，Then return to about 800 rpm。

2、Observe the work of the instrument panel and alarm device，When the pressure of the water is normal, the oil pressure is normal，Check the sound and reflection of the engine，First listen to the idle sound，It should be smooth and continuous;，Finally listen to the acceleration and the engine's reflection of the throttle is accurate and clean，Is there a lag or a high speed?。     

Check whether the connection of the body is evenly，Whether the paint surface is smooth，Whether there are flying paint, etc.，It is also necessary to check the identity and uniformity of the body structure，If you encounter a very rough，seabet myMaybe it has been trimmed after the accident;，Whether there are poor contact and shaking，Careful check。     

The appearance scratches should be clear，Is the glass at the same period，Even if there are different periods，The deadline will not be too much too much，Basically half a year is the most，Glass will have markings。Small scraping is not a big problem，It depends on whether the body waistline is the same as the horizontal line，It is best to have paint film meters，May check whether the paint surface is made of paint or putty。At the same time, it is necessary to check the degree of wear of tires and the wear status of other damaged parts。     

Light、Audio、Air conditioning、seat、seat belt、Electric Window and other trials of using components such as daily use，Be sure to use it normally，If the interior parts or functional facilities are too "wolf"，Those who can conclude that the owner is not a car who loves a car，and the center console is a place where it is easy to have problems，So detailed inspection is also necessary。