We will never perform blind deep disassembly unless there are clear severe fault codes or extreme noises. The sealing of the engine and transmission is crucial, and compromising the factory seals to investigate non-existent issues is unprofessional. We rely on data flow and external acoustic and fluid analysis to make judgments.

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 long as you provide us with a genuine and valid bank SWIFT MT103 wire transfer message (receipt) within the payment deadline specified in the contract, we will reserve the vehicle and continue with the port operations, even if the funds are held up in the intermediary bank for several days.