What is the National Emission Standard for the Passat?
2 Answers
2014 Passat complies with National Standard IV. National Standard IV Emission Requirements: National Standard IV is China's fourth-phase emission standard for motor vehicle pollutants. Primary automotive emissions include HC (hydrocarbons), NOx (nitrogen oxides), CO (carbon monoxide), and PM (particulate matter). This standard mandates controlling and reducing these pollutants below specified thresholds through technologies like advanced catalytic converter active layers, secondary air injection, and cooled exhaust gas recirculation systems. Implementation Timeline of National Standard IV: Since July 1, 2011, all diesel vehicles under 3.5 tons were required to meet National Standard IV. This ensured full compliance for new vehicle registrations, accompanied by nationwide unified green/yellow environmental labels during annual inspections, with progressive traffic restrictions for yellow-label vehicles.
I've driven a Volkswagen Passat, and my own car is a 2020 model. I remember the salesperson mentioned it met the China 6 emission standards when I bought it. Emission standards are quite important because there are significant differences between different years—older cars before 2017 might still be China 4 or China 5. Nowadays, new cars are mostly China 6 compliant, which affects license plate registration and traffic restriction policies. First- and second-tier cities enforce these rules strictly—China 5 cars can still be driven but may face restrictions. So, it's essential to check the production year when buying a car. The emission label can usually be found on the windshield or in the conformity certificate. I once helped a friend check his 2019 Passat, and it was a China 5 model. Regular maintenance is also crucial to keep the exhaust system clean and avoid particulate clogging, or you might run into trouble during inspections. Overall, the Passat's emissions depend on the production year—newer ones are China 6 compliant. I recommend asking the dealer for more details when purchasing.
