What does it mean when the AdBlue light is on in a diesel vehicle?

[VanRichard]

When the AdBlue light is on in a diesel vehicle, it is a reminder for the owner to add diesel exhaust fluid. Below is an introduction to related content about vehicle exhaust: 1. Establishing standards: Vehicle exhaust emission standards are quality requirements set to reduce harmful gas emissions, encouraging automobile manufacturers to improve technology and control the emission of harmful substances such as carbon monoxide, hydrocarbons, nitrogen oxides, and particulate matter. Both Europe and the United States have established relevant standards, with Mainland China primarily adopting European standards. 2. Air pollution: Vehicle exhaust is another major factor in air pollution. It contains carbon monoxide, nitrogen oxides, and other solid particles that adversely affect human health, especially leaded gasoline, which poses greater harm. Different vehicles also emit different odors. Automotive repair experts note that normal exhaust should be colorless and odorless. Exhaust with different colors or unusual smells may indicate potential issues with the vehicle.