In 2007, if the water tank of Volkswagen sagitar heater needs to be dismantled, it must be dismantled in the 4S shop or repair shop of the car. It is not allowed to dismantle the water tank of the heater without authorization, so as not to damage the heater system of the car.
The heat of automobile heater comes from engine coolant. When the heater is turned on, the coolant flows through the heating box under the center console, bringing heat. If the cooling liquid is not circulated, the high-temperature cooling liquid cannot be sent to the warm air tank, and naturally there is no warm air. The main reasons why the coolant does not circulate are pump failure, air in the cooling system and insufficient coolant.
The warm water valve is located on the inlet pipe of the warm water tank. You can find it along the cooling system pipeline after opening the engine compartment.
The usage of the car heater is as follows: If the heater water tank is blocked, antifreeze can't enter the heater water tank, or the flow rate becomes smaller, it will also affect the heating of the air conditioner. In addition, if this thing is broken, it will be more troublesome to maintain, and most people can't do it, because the entire instrument panel needs to be removed to find it, and this heating box needs to be cleaned.