The headliner is considered an "irreversible interior component." If the edges are delaminated or there are deep, hard-to-clean dark water stains, it will directly lead to a downgrade in the interior grade, even if it does not affect driving. We will not use pins or low-quality glue for cosmetic repairs.

We use two steps: 1. Insert a medical-grade endoscope through the spark plug hole to visually inspect cylinder wall scratches and carbon buildup on the piston top; 2. Extract an engine oil sample to check for large metal debris or emulsification (caused by coolant leakage).

Usually yes, but with conditions. The seller must transfer the vehicle's account binding to you — without that, the app stays locked to the previous owner. Ask for a screen recording showing the unbinding and re-binding process. OTA updates and remote functions depend on the manufacturer keeping servers accessible from your region. Most major brands now support overseas accounts, but features like voice assistants or map data may be limited outside China. In-car navigation may default to Chinese maps, so plan to use Android Auto, CarPlay, or phone mirroring instead. Before purchase, confirm with the exporter in writing: which connected functions work in your country, and whether a regional account conversion is included in the price.