We maintain an absolute skeptical attitude. In addition to regular visual inspections, we focus on checking for sediment accumulation around the sunroof drainage channels and look for water stains under the A-pillar trim and front floor mats. This is the only effective physical evidence to determine if the sunroof drainage holes are blocked, leading to hidden leaks.

We will use a megohmmeter (insulation resistance tester) to measure the insulation resistance of the high-voltage bus. If the resistance value is below the national safety standard, it indicates a risk of leakage, and the vehicle will be deemed unqualified.

It must be stated objectively: used cars in China are produced according to national standards (GB) and have not been originally certified by Saudi SASO or GSO of Gulf countries. Buyers must find a local agent with customs clearance capabilities to complete the clearance through exemption documents or compliant modifications after arrival (such as wrapping or adding specific alarms).