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).

We cannot open each tire to inspect the inside. However, if a visual inspection reveals severe creases on the tire sidewall, it indicates that the run-flat tire has been driven for a long time at zero pressure, damaging its internal structure. We would recommend replacing it before shipping.

This is a common issue with sea transport. If the vehicle is parked at a humid dock, the EPB can easily rust to the brake disc. In addition to testing its release before shipping, we try to ask dock workers to secure the wheels with chocks instead of fully engaging the electronic parking brake.