Why is there a 30,000-kilometer limit for the Qin DMI?
3 Answers
The reason for the 30,000-kilometer limit on the Qin DMI is durability and reliability issues. Qin DMI: Fuel consumption adopts a hybrid architecture, focusing on energy saving and fuel efficiency, with a light luxury aesthetic interior and youthful dynamism. Piano lacquer panels, center console trim strips resembling flowing blue skies, a 12.8-inch intelligent floating rotating screen, a wraparound cockpit, a multifunctional steering wheel, and more are all utilized in this vehicle, elevating the overall visual experience beyond previous models. Automotive Durability: The durability of a vehicle refers to the working lifespan of the entire vehicle and its assemblies before reaching the limit of wear or becoming unusable. Simply put, it is the service life of the car. It directly impacts the technical soundness coefficient, depreciation costs, and major repair expenses. The durability of a vehicle depends on the wear resistance of its components and their ability to withstand fatigue and corrosion.
As a seasoned veteran in maintaining such hybrid vehicles, I believe the 30,000-kilometer limit for the Qin DM-i primarily pertains to battery maintenance recommendations. This is because the DM-i plug-in hybrid system relies on the high-voltage battery to drive the motor and coordinate with the engine. It's advised to visit a 4S dealership every 30,000 kilometers or so to check the battery's health, including charge-discharge balance, internal resistance testing, and cooling system cleaning. This allows for early detection of potential issues, preventing degradation from affecting fuel efficiency. For example, although BYD's battery warranty covers 8 years or 150,000 kilometers, skipping regular inspections may lead to reduced driving range due to aging. Owners are best advised to follow the manual's schedule for these checks while also inspecting drive system connectors for looseness or wiring for wear. Combining these measures with daily driving habits like avoiding sudden acceleration can extend the system's lifespan.
I've been driving this car for almost half a year. The manual emphasized that a dedicated hybrid system check-up is required every 30,000 kilometers. This is actually because the battery pack and electronic control unit are prone to being affected by mileage accumulation. For example, my car's fuel consumption slightly increased after 30,000 kilometers. After inspection, it was found that there was an imbalance within the battery modules, which returned to normal after adjustment. This isn't a strict warranty limitation but rather a preventive measure to remind owners to maintain efficient operation. Hybrid cars save money initially but require more meticulous maintenance. It's recommended not to skip these maintenance intervals to save on future repair costs.
