What is the emission standard of the Baojun 310w?

[JasperLee]

Baojun 310w complies with both National V and National VI emission standards. Emission standards refer to the levels of harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, particulate matter, and carbon smoke emitted from vehicle exhaust. Taking the 2020 Baojun 310w as an example, its body dimensions are: length 4620mm, width 1710mm, height 1535mm, with a wheelbase of 2750mm and a fuel tank capacity of 40 liters. The 2020 Baojun 310w is equipped with a 1.5L naturally aspirated engine, delivering a maximum power of 77kW and a maximum torque of 135Nm, paired with a 5-speed mechanical automatic transmission.

[StCarmen]

I bought the Baojun 310W back then because it was practical and affordable, and I checked the information and verified it on the vehicle registration certificate. When this car was first released in 2017, it met the China 5 emission standard, and the one I bought in 2018 was also China 5. Later in 2019, it was upgraded to China 6, mainly due to stricter emission standards. The difference between China 5 and China 6 lies mainly in exhaust treatment—China 6 requires 25% less nitrogen oxide emissions, so new cars are equipped with particulate filters. When buying a used car now, pay attention to the environmental information on the registration certificate. China 5 cars cannot be transferred into major cities like Beijing, Shanghai, Guangzhou, and Shenzhen, but they’re perfectly fine to drive in smaller cities. My car has been running for five years, and it passes the annual emission test every time.

[AdalineFitz]

The Baojun 310W has two phases of emission standards. Models produced between 2017 and 2018 comply with China V standards and were equipped with mechanical fuel injection systems. After July 2019, the models were upgraded to China VI-b standards, featuring improved engine electronic control systems and optimized exhaust treatment devices. China VI models are marked with the technical specification GB18352.6-2016 on the trunk nameplate. Currently, most used cars on the market are the later China VI models, which face no restrictions when being transferred to other regions. Although emission standards may not be noticeable in daily use, they affect traffic restriction policies and vehicle residual value.

[DelGemma]

I've looked into this. The Baojun 310W initially complied with the China V emission standard when it was launched in 2017. After the new policy took effect in 2019, newly produced vehicles were upgraded to China VI standards. Specifically for this 310W station wagon, the later China VI models mainly improved the intake system and three-way catalytic converter, reducing hydrocarbon emissions by about 30%. The emission standard can be checked on the vehicle conformity certificate. Current China VI models are more environmentally friendly to drive, though the engine noise is slightly louder than in older versions.