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).

Do not use a high-pressure water gun directly! The high-pressure water can instantly damage the fragile aluminum fins of the condenser, leading to a permanent decrease in cooling efficiency. We can only use a low-pressure air gun or a soft brush for surface cleaning.

Compliance with the law is an absolute requirement for exports. All vehicles exported through our platform must complete the following legal processes: release all domestic bank mortgages, pay all traffic fines, and complete the formal deregistration for "transfer pending export" with the Chinese public security traffic management department. Only vehicles with 100% clear ownership can be approved for export permits.