From the front of the car, open the hood and go straight to the hood screws, all painted. As long as it is found that the paint surface of the screw is damaged, it is likely that the cover has been removed, and there must be a story inside.

Generally, in the process of vehicle use, it is only necessary to remove the hood for maintenance when the hood is deformed due to collision. Small scratches don't need to be removed at all, just spray paint. The disassembly and assembly of the machine cover proves that the stress surface is large, so it is necessary to repair the machine cover or replace the sheet metal. Pay attention at this time.

2. Water tank frame screw

Looking back, the connection of water tank frame can be divided into two types: solder joint connection and screw connection. If it is the former, don't worry about it. Just look at the attached screws and headlights on the water tank rack. If there are no traces of screws, it means that the problem ahead is not big and the accident probability is very small.

It should be noted that this is not the point because it is sometimes necessary to move the headlight screws when replacing accessories. Here we mainly look at the water tank frame screws.

3. Engine base screw

The engine base screw is the screw that fixes the engine to the longitudinal beam. This is very important. The purpose of disassembly is nothing more than:

① The longitudinal beam needs to be repaired when an accident occurs.

② Engine maintenance or overhaul.

③ Replace the gripper pads.

It is generally difficult to tell whether it is twisted or not, and see if there are (black) marks.

4. Door screws

Similar to the previous points, it is not necessary to remove the door for repair if there are small scratches, but only when there is a big collision, so the door screw is also a standard to judge the accident car.

It is also easy to judge whether the painted door screws have not been moved. Some Japanese cars without painted surfaces depend on whether there are black marks.

5. Trunk cover screws

When you come to the rear of the car, if there is a rear-end collision, the collision intensity is very likely to cause damage to the trunk lid. If it is necessary to disassemble the machine for maintenance, then the accident is definitely not small.

Refer to the above content: Phoenix Net-Car Discovery: How to Identify Accident Cars?