What should Buick Hideo remove when changing the water tank? How to remove the water tank?

Buick Hideo water tank can only be removed after removing the front bumper. If the heater water tank is removed, the instrument panel also needs to be removed. If the water tank leaks, it should be the problem that the sealing ring of the heating water tank or the water tank is cracked. Replacing the sealing ring or the heating water tank can solve the problem.