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).

As the importer, you mainly need to bear the following costs at the destination port: import duties, VAT or GST, terminal handling charges, local customs clearance fees, and inland logistics costs from the port to your company. Please consult your local customs broker before placing an order to accurately calculate the total landing costs.

The technician will put the vehicle in neutral on the lift, rotate the wheels, and listen for any abnormal metal gear whine from inside the motor reducer, and check for gear oil leaks at the joints of the reducer housing.