This situation belongs to the maintenance of the gearbox, not overhaul, so this situation is not considered a major accident.

Second-hand car major accident identification standards:

In the second-hand car market, an accident car refers to a vehicle that is damaged due to an accident of unnatural loss, resulting in a decrease in mechanical performance and economic value. The vehicle was the accident vehicle. "Major accident vehicles" generally refer to vehicles with structural damage. At the same time, vehicles soaked in water and on fire are also classified as "special accident vehicles".

The structural components of a vehicle (longitudinal beams, suspension systems, front and rear anti-collision steel beams, energy-absorbing boxes and other core frames), vehicle frame (body frame, structural components, excluding exterior coverings) , if these parts are stretched, deformed, or damaged due to collision, it can be regarded as an accident vehicle; there are two special situations, one is a vehicle whose body is soaked in water and water enters the cockpit; the other is a vehicle whose body is burned by fire Vehicles exceeding 0.5 square meters that still have potential safety hazards after repair.

As a consumer, when purchasing a second-hand car, if the second-hand car appraisal appraiser says that the following conditions exist after the appraisal, it is recommended to purchase with caution:

1. Including the body roof Any body structure (non-detachable part) including the side beams, bottom side beams, rear fenders, rear trunk, side panels, etc. has serious sheet metal repairs or even cutting, splicing, and welding.

2. Vehicles whose airbags deployed and seat belts were replaced due to impact.

3. Vehicles whose engines and gearboxes have been overhauled.

4. Vehicles whose vehicle body has been burned by fire and whose area exceeds 0.5 square meters, and which still poses safety risks after repairs.

5. Vehicles that have been immersed in water for more than one-third of the height of the vehicle body or where water has entered the cockpit.