1. Remove the workbench and remove the screws of the workbench. Pay attention to where there are screws. There are screws in the two edges below the workbench, and there are two screws just above the wheel arch.
2. Dismantle the instrument assembly, and pay attention to the instrument connecting wire during disassembly to avoid breaking.
3. After the instrument assembly is removed, the whole picture of the heater is leaked. The heater is connected with three screws. Remove the upper one first, and then remove the other two screws.
4. Remove the water pipe connected to the heater box.
5. Take out the warm air tank and repair it by welding.