Mercedes-Benz E-Class Quiz
Climate Control

Switch climate control on or off. Switch cooling with air dehumidification on or off. Control climate automatically. Set climate style

In this manual: Climate Control
Introduction — 5At a glance — 6Safety — 25Opening and Closing — 17Seats, steering wheel and mirrors — 12Lights and windshield wipers — 11Climate Control — 11Driving and parking — 44On-board computer and displays — 29Stowing and Useful Information. Good to Know — 1Stowing and Useful Information. Storage Options — 10Stowage and convenience features. Convenience features — 7Maintenance and care — 11Roadside assistance — 13Wheels and tires — 13Technical data — 13
~4min read

In the Mercedes E-Class (4th gen, W212, 2009–2016), climate control allows efficient regulation of interior temperature and humidity. Functions such as air dehumidification and climate style help prevent the windows from fogging up and keep occupants comfortable in any weather. Operation is intuitive, using central buttons.

Switch climate control on or off

General Notes

When you switch climate control off, the air supply and circulation are switched off. The windows may fog up. Therefore, only switch climate control off briefly.

Info

Preferably switch climate control on using the buttonon.

Arming and disarming

Turn the key in the ignition to position 2.Switching on: press buttonpress.
  • The indicator lamp above the buttonlights up. The air volume and air distribution are controlled automatically.

    or

    Buttonpress.

  • The indicator lamp above the buttongoes out. The previous settings take effect again.

    Switching off: press buttonpress.

  • The indicator lamp above the buttoncomes on.

    Switch cooling with air dehumidification on or off

    General Notes

    If you switch off the "Cooling with air dehumidification" function, the vehicle interior air is not cooled in warm weather. The interior air is also not dehumidified. The windows may fog up more quickly. Therefore, only switch off the "Cooling with air dehumidification" function briefly.

    The "Cooling with air dehumidification" function is ready for operation when the engine is running. The vehicle interior air is cooled and dehumidified according to the selected temperature.

    During cooling operation, condensation water may drip from the underside of the vehicle. This is normal and not a sign of a fault.

    Arming and disarming

    Switching on: press buttonpress.
  • The indicator lamp above the buttonlights up. Info

    When the "Cooling with air dehumidification" function is switched on, vehicles with an auxiliary heater show one of the indicator lamps on the auxiliary heater button lit.

    Switching off: press buttonpress.

  • The indicator lamp above the buttongoes out. Cooling with air dehumidification switches off with a delay.

    Problems with the "Cooling with air dehumidification" function

    Problem Possible causes/consequences and solutions
    The indicator lamp above the buttonflashes three times or stays off. Cooling with air dehumidification cannot be switched on. Cooling with air dehumidification is switched off due to a malfunction.

    Consult a qualified specialist workshop.

    Automatic climate control

    General Notes

    In automatic mode, the set temperature is held constant automatically. The temperature of the air flowing out, the air volume and the air distribution are adjusted automatically.

    Automatic mode works best when the "Cooling with air dehumidification" function is switched on. If necessary, cooling with air dehumidification can be switched off.

    If you switch off the "Cooling with air dehumidification" function, the vehicle interior air is not cooled in warm weather. The interior air is also not dehumidified. The windows may fog up more quickly. Therefore, only switch off the "Cooling with air dehumidification" function briefly.

    Switching on and switching over

    Turn the key in the ignition to position 2.Set the desired temperature.

    Switching on: press buttonpress.

  • The indicator lamp above the buttonlights up. The automatic control for air volume and air distribution is switched on. Info

    THERMOTRONIC automatic climate control: With automatic mode switched on, you can select the climate style.

    Switching over to manual operation:

    THERMATIC automatic climate control: press buttonto set the air distribution.

    THERMOTRONIC automatic climate control: press buttonto set the air distribution.

  • The indicator lamp above the buttongoes out.

    or

    THERMATIC automatic climate control: press buttonto set the air volume.

    THERMOTRONIC automatic climate control: press buttonto set the air volume.

  • The indicator lamp above the buttongoes out.

    Set climate style

    The "Set climate style" function is only available with THERMOTRONIC automatic climate control.

    In automatic mode, you can choose between the following climate styles:
    FOCUS High air volume, set slightly cooler
    MEDIUM Medium air volume, default setting
    DIFFUSE Low air volume, set slightly warmer and draft-free
    Turn the key in the ignition to position 2.Buttonpress.

    Button for setting the climate stylePress up or down and select the appropriate level.

    The climate control system of the Mercedes E-Class W212 (model years 2009–2016) offers numerous functions to optimally regulate the cabin climate. From air drying to climate style to automatic control, everything serves comfort and safety.

    The clear operating logic and high-quality materials underline the premium character of this model series.

    Question: Why should the "Cooling with air drying" function not be kept switched off permanently?

    Answer: Without air drying, the windows fog up faster and cooling performance is not guaranteed.

    Question: What airflow settings does the THERMOTRONIC climate style have?

    Answer: FOCUS (high airflow), MEDIUM (standard), DIFFUSE (low, draft-free airflow).

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