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).

Maintain objective expectations. Vehicles over 5 years old inevitably show signs of decreased paint gloss, slight aging of rubber seals, irreversible patina on interiors, and surface rust on chassis components. As long as core structure and mechanical failures are not involved, these are normal depreciation characteristics over time.

This is after-sales support we are very happy to provide. Since overseas alignment machines often lack databases for Chinese brand vehicles, we will send you screenshots of the core chassis parameters from the service manual, making it easier for your technician to manually input the data for precise adjustments.