Everyone knows that only through urea solution can the emission particles of nitrogen oxides be reduced, in order to meet the national five emission standards, and the barrier clearance vehicles used by everyone will encounter, the dashboard lights up urea failure lights, or the phenomenon of urea crystallization blockage.
In fact, when we encounter urea problems, we should not panic. We can solve this problem very well by eliminating methods. There are three main faults that often occur. Everyone finds out the faults by means of instrument fault lights. Usually, if the fault lights are caused by circuit faults or blocking faults.
The common crystallization blockage fault can be solved by flushing. The line fault is usually around the urea pump in the urea pot. It can be solved by eliminating the problem. Generally speaking, when adding urea, attention should be paid to the cleaning of the injection port, so as to ensure that no miscellaneous material will enter the pot. Next, 20,000 kilometers need to be replaced or cleaned. In order to increase service life.
Finally, we provide a small partial prescription to ensure that the urea system has a clean environment. When the car key is closed, it should not be closed to the end. We should keep the door open and recycle the urea system after extinguishing.