What is the role of urea in automobiles?

[VanCali]

Automotive urea is used to convert nitrogen oxides in vehicle exhaust into harmless nitrogen and water, enabling the vehicle to meet national exhaust emission standards. Here is more information about the urea warning light: 1. Function: Automotive urea is a diesel exhaust fluid that uses SCR (Selective Catalytic Reduction) technology to reduce exhaust emissions. 2. Solutions: When the urea warning light comes on, there are three ways to address it. The first scenario involves symptoms such as reduced acceleration or white smoke from the exhaust pipe, which requires professional equipment to clean the urea crystallization inside the exhaust pipe. The second scenario occurs when the vehicle's fault code indicates low urea pressure, in which case urea needs to be replenished. The third scenario is caused by engine torque limitation, where the engine speed cannot exceed 1800 RPM for 8 minutes, requiring the replacement of the urea pump and sensor.