What is the equivalent Chinese emission standard for Euro IV with OBD?
4 Answers
Euro IV with OBD is equivalent to China IV standard. China IV standard refers to the fourth phase of national motor vehicle pollutant emission standards in China. The main pollutants emitted by vehicles include hydrocarbons, nitrogen oxides, carbon monoxide, and particulate matter. Through the application of technologies such as the active layer of catalytic converters, secondary air injection, and exhaust gas recirculation systems with cooling devices, these standards control and reduce vehicle emissions to below specified limits. Methods to check a vehicle's emission standard: 1. Check the motor vehicle certificate of conformity; 2. Look for the vehicle delivery checklist; 3. Log in to the motor vehicle exhaust pollution supervision and management website; 4. Check the back of the environmental protection label on the vehicle's front windshield; 5. Bring the vehicle registration form to the vehicle management office for inquiry. Vehicle emission sources come from the exhaust pipe, crankcase, and fuel system.
As an enthusiast who often helps friends pick out used cars, I've learned about emission standards. Euro IV is essentially Europe's fourth-generation emission standard, which must include an OBD (On-Board Diagnostics) system—a vehicle diagnostic tool. This combination directly corresponds to China's National IV standard. National IV became mandatory around 2010, requiring all new vehicles to be equipped with OBD monitoring devices to ensure emissions compliance. I find it quite meaningful because stricter emission controls have significantly reduced exhaust odors, making urban air cleaner. A friend of mine once bought a Euro IV imported car, which, with minor modifications, passed the National IV inspection. The OBD port allowed mechanics to quickly diagnose faults, saving time and money. Checking this standard when buying a car is crucial—it ensures regulatory compliance and eco-friendly travel, benefiting both car owners and the city.
With over twenty years of driving experience as a seasoned driver, I can tell you that Euro IV with OBD is equivalent to our National IV standard. OBD became standard equipment during the Euro IV era, capable of real-time monitoring of engine emissions—if the dashboard light comes on, it indicates a fault. The National IV standard was mandatorily enforced in 2011, requiring the same system, and mechanics always connect to the OBD port to read fault codes during repairs. I remember my car once had an oxygen sensor issue, which was promptly detected and fixed thanks to OBD, avoiding fines for excessive emissions. Compared to older models, National IV vehicles are cleaner, quieter, and more effective in controlling exhaust emissions. Annual inspections rely on OBD to read data, ensuring compliance. I advise new car owners to pay attention to maintaining the OBD system and not ignore warning lights. The upgrade in emission standards benefits environmental improvement, and our generation has witnessed the air quality transition from poor to better.
As a young car owner, I found through research that the Euro IV emission standard with OBD system corresponds to China's National IV standard. Implemented in 2010, all new vehicles under National IV must be equipped with OBD monitoring devices to diagnose whether emissions are normal. Driving a National IV compliant car is more environmentally friendly and worry-free, as the OBD system can warn of faults like catalytic converter issues, allowing timely repairs to prevent pollution. I feel this doesn't impose much burden on daily driving; instead, it simplifies vehicle maintenance. The upgraded emission standards reduce smog risks, benefiting urban environments significantly, making driving more comfortable. When buying used cars, prioritizing National IV or above models is sufficient.
