Which button is for the external air circulation in Mercedes-Benz?
2 Answers
External air circulation is located on the air conditioning panel of the center console. The switch between internal and external air circulation is controlled by the computer. To force internal or external air circulation, simply press the internal circulation button. When the indicator light is on, it means internal circulation; when the light is off, it means external circulation. Below is an introduction to the selection of internal and external circulation: 1. Outdoor exposure: After getting in the car, first turn on external circulation to ventilate and dissipate heat. You can also open the windows and sunroof to speed up heat dissipation. Once the interior temperature has stabilized, close the windows, turn on the cooling, and switch the air conditioning to internal circulation. 2. Cold weather: Wait a moment after getting in the car until the engine temperature reaches the normal level. Then, turning on the heater with internal circulation can quickly raise the temperature. 3. Traffic jam: It is best to turn off external circulation to block exhaust fumes from the vehicle in front. 4. Highway driving: You can turn on external circulation as needed because driving at high speeds for a long time with internal circulation can lead to poor air quality inside the car. Turning on external circulation helps maintain the interior temperature and refreshes the air. 5. Parking: If you need to rest in the car with the air conditioning on, be sure to turn on external circulation periodically or leave a small gap in the window.
As a veteran Mercedes driver with 10 years of experience, let me explain - there isn't a dedicated button for external air circulation. On the Mercedes climate control panel, you'll find a car icon with an arrow button - that's the internal circulation key. When pressed with the light on, it's internal circulation; when the light is off, it automatically switches to external circulation. New vehicles default to external circulation mode upon startup, so no need to manually activate it. During highway driving or in good air quality conditions, simply turn off the internal circulation light for ventilation. In smoggy weather or traffic jams, I press the internal circulation button to prevent exhaust fumes from entering. Mercedes' automatic climate control system is quite intelligent - in AUTO mode, it automatically switches between internal and external circulation based on air quality. Just pay attention to this button's indicator light status during daily use - the operation is extremely straightforward.
