All our measuring instruments (especially calipers, paint thickness gauges, and refrigerant pressure gauges) are calibrated quarterly according to ISO quality management system requirements to ensure the data we provide you is objective, accurate, and reliable.

For older vehicles or those used in high temperature and humidity areas, we will focus on opening the hood to check if the insulation of the wiring harness in the high-temperature area of the engine compartment is cracked or brittle, to identify potential short circuit risks that could lead to spontaneous combustion.

The platform has strict internal outbound inspections. If buyers need, we can assist you in commissioning an independent third-party evaluation agency (such as Cha Doctor, Dongche Di official testing, etc.) for re-inspection, with costs borne by the buyer. An independent report can provide more credibility for your local resale.