After entering the store, it was found that when the engine was running at an idle speed of 3000 rpm for a period of time, the temperature blown out from the warm air outlet could reach about 50℃, and the temperature would also drop after the throttle was released. This situation is obviously due to the poor circulation of antifreeze in the warm air water tank, which leads to poor heating effect of the water tank.
Because the heater tank of the car is installed in the dashboard of the cab, it is necessary to remove the dashboard to replace or check the heater tank, so this car needs to remove the dashboard.
Attachments: multimedia system, instrument system, center console control system, etc. need to be installed on the instrument panel to remove it. Only by removing these accessories can the fascia of the instrument panel be removed.
Let's take a picture first. Be careful and don't be surprised.
There is no dashboard in the evacuated cab, only some vehicle wiring harness and steering column of steering mechanism are left.
Separate the air conditioner blower assembly from the instrument panel.
This is what we call the dashboard, and the warm air tank is in this assembly.
After taking the warm air tank down, let's find a clean place and pour out the residual antifreeze in it to see what we can get out.
We poured a lot of water and some sundries from the warm air tank.
These magazines and sundries will play a decisive role in the circulation of antifreeze in the water tank, and even seriously block the internal pipeline of the warm air water tank, so that the warm air water tank can not play its due heat dissipation role.
Therefore, when replacing the vehicle antifreeze, we must choose the appropriate antifreeze to replace it. When replacing other parts of the vehicle cooling system, it is also recommended to choose the original parts to avoid this situation.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.