What is the difference between Audi A4L National V and National VI standards

[DakotaMarie]

The 35TFSI National VI version of the A4L is equipped with a 2.0-liter turbocharged engine, while the National V version comes with a 1.4-liter turbocharged engine. If purchasing a new car, the environmental protection information is usually available for reference. Some 2019 Audi A4L models comply with National V standards, while others meet National VI standards. Relevant information about vehicle emission standards is as follows: 1. Introduction: Vehicle emission standards regulate the permissible levels of harmful gases emitted from vehicle exhaust, including CO (carbon monoxide), HC+NOx (hydrocarbons and nitrogen oxides), and PM (particulate matter, soot). 2. Implementation: Starting from January 1, 2004, Beijing upgraded its vehicle emission standards from Euro I to Euro II, and officially implemented Euro III standards by 2008.