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How to identify the real condition of a used car with a paint meter ?

How to identify the real condition of a used car with a paint meter ?


We all know that used car is different from a new car. According to the condition of each car, each car have each price. So how do we know the condition of a used car?

Experience sharing tips: To judge the condition of a used car, in short, check whether the parts on the car have been disassembled and replaced. Once replaced, it means that the car may have had an accident.

 Is the hood original?

1. Is the hood original?

Open the hood and check whether the screws on the hood have any signs of twisting, and whether the original factory label still exists.

Generally, if there is no collision at the hood, the screws will not show signs of being twisted. Also, if the hood has not been replaced, the original factory sticker should remain on the hood

 Is the door original?

2. Is the door original?

Do the same for the door, check whether the screws on the door hinges are dismantled, and whether there is sealant on the door seams. (Some brand models have no sealant)

Interpretation: If the door has a collision, then the door will be replaced with a high probability. At this time, the screws of the door hinge will have disassembly marks.

 trunk cover of the car original?

3. Is the trunk cover of the car original?

Check whether there are any signs of disassembly and twisting at the joints of the trunk lid. If there is a rear-end collision behind the vehicle, there is a high probability that the trunk lid will be affected.

 headlights original?

4. Are the headlights original?

There is a factory date on the headlight, which can be compared with the time of the vehicle factory nameplate.

If the manufacturing time of the headlight is after the date of manufacture of the vehicle, it can be determined that the headlight has been replaced.

 accident at the front

5. Is there an accident at the front of the car?

 Check the beam on the water tank frame (commonly known as the radiator frame), most models have the original label. In addition, check the solder joints between the water tank frame and the headlight bracket. The original solder joints are relatively flat, and the post-maintenance process is not as good as the original quality.

Usually the accident at the front of the car will directly affect the water tank frame. If it collides with the water tank frame, it will directly affect the actual condition of the vehicle.

 guoou paint meter

6. Is there an accident at the rear of the vehicle?

For most models, the rear fender is connected to the C-pillar and cannot be replaced directly. The C-pillar needs to be cut to replace it. Check the position of the rear door rubber strip, pull the sealing strip open and check the solder joints on the door. If it is replaced, there will be solder joints and colors that are obviously inconsistent with the original solder joints.

Checking the solder joints is one of the main ways to judge whether there is major maintenance. For example, if there is cutting and welding behavior during maintenance, the later solder joints are not as good as the original quality in terms of technology.


In the above tests, the hood, A,B,C pillars, fenders and other parts can be used to help us judge the real condition of a car with the help of the paint meter. Most of the cars are around 100 microns. If it exceeds this range, it is generally rework, and if the value is higher than 250 microns, body filler or sheet metal repairs may happened


The paint meter plus the above judgment method can avoid buying 99.9% of the accident cars on the market. Here, the 4th generation paint meter of Guoou is recommended, which can detect the fine repairing routine of forging the original car paint with metal putty instead of ordinary putty, which greatly reduces the chance of us stepping on the pit.