What does it mean that it is forbidden to add it next to Geely Panda's water tank?

"No adding next to the water tank of Geely Panda" may refer to a sign or instruction next to the water tank of the car, reminding the owner not to add liquid next to the water tank. According to relevant information, special coolant should be filled in the water tank to ensure the normal operation of the automobile engine. If the liquid in the water tank is insufficient, it should be added at a professional maintenance station or gas station, rather than by the water tank itself. Because when the car is driving, the water tank and water pipe will be affected by high temperature and high pressure. If the liquid is added at this time, it may cause the liquid to spill out, causing burns or other dangers. Therefore, it is forbidden to add liquid next to the water tank of Geely Panda, reminding the owner not to add liquid by himself to ensure the safety of the owner.