The operation steps of replacing the small heating water tank for vehicles are relatively complicated and cumbersome. First, remove not only the instrument panel, but also the entire instrument panel of the vehicle. After removing the instrument panel, it is necessary to continue to remove the blower box in the instrument panel. The warm air small water tank and air conditioning evaporation box are installed inside the fan case, so the workload is relatively large. And you need some professional technical knowledge and relevant operating experience, so if you don't have the above conditions and don't know much about the structural design of the vehicle, it is not recommended that you do the above operations yourself. It is best to go to a special store or under the on-site guidance of a professional maintenance technician.