What is the disassembly method of Passat heater water tank?

The disassembly method of Passat warm air water tank is: 1, and the liquid in the water tank is cleaned; 2. Unplug the cooling fan and disconnect the connecting water pipe; 3. Remove the fixing bracket on the front frame and the water tank; 4. Install the water tank by disassembly. The function of the warm air water tank is to dissipate the redundant and useless heat in the engine, so that the engine can work normally at various speeds or driving conditions. Take Passat model 202 1 as an example. It is a medium-sized car. Its body dimensions are: length 4933mm, width 1836mm, height 1469mm, wheelbase 287 1mm, fuel tank volume 68.5l and body weight/kloc.