Mersedes SUV Manuals

Overview of climate control systems

Mercedes-Benz M-Class / Mercedes-Benz M-Class Owners Manual / Climate control / Overview of climate control systems

Important safety notes

Severe conditions (e.g. strong air pollution) WARNING
Severe conditions (e.g. strong air pollution) may require replacement of the filter before its scheduled replacement interval. A clogged filter will reduce the air volume to the interior and the windows could fog up, impairing visibility and endangering you and others.

Have a blocked filter replaced at a Mercedes- Benz Center as soon as possible.

Follow the recommended settings for heating WARNING
Follow the recommended settings for heating and cooling given on the following pages.

Otherwise, the windows could fog up, impairing visibility and endangering you and others.

Automatic climate control controls the temperature and the humidity of the vehicle interior and filters out undesirable substances from the air.

Automatic climate control is only operational when the engine is running. Optimum operation is only achieved if you drive with the side windows and sliding sunroof/panorama roof with power tilt/sliding panel closed.

Ventilate the vehicle for a brief period
Ventilate the vehicle for a brief period during warm weather, e.g. using the convenience opening feature.

This will speed up the cooling process and the desired vehicle interior temperature will be reached more quickly.

The integrated filter can filter out most
The integrated filter can filter out most particles of dust and completely filters out pollen. A clogged filter reduces the amount of air supplied to the vehicle interior. For this reason, you should always observe the interval for replacing the filter, which is specified in the Service Booklet. As it depends on environmental conditions, e.g. heavy air pollution, the interval may be shorter than stated in the Service Booklet.

Control panel for dual-zone climate control

Canada only
Canada only

1 Sets the temperature, left 2 Defrosts the windshield 3 Switches the ZONE function on/off 4 Activates/deactivates cooling with air dehumidification Activates/deactivates the residual heat function 5 Switches the rear window defroster on/off 6 Sets the temperature, right 7 Activates/deactivates air-recirculation mode 8 Sets the air distribution 9 Increases the airflow
10 Reduces the airflow
11 Switches climate control on/off 12 Sets climate control to automatic

USA only
USA only

1 Sets the temperature, left 2 Defrosts the windshield 3 Switches maximum cooling MAX COOL on/off 4 Activates/deactivates cooling with air dehumidification 5 Switches the rear window defroster on/off 6 Sets the temperature, right 7 Activates/deactivates air-recirculation mode 8 Sets the air distribution 9 Increases the airflow
10 Reduces the airflow
11 Switches climate control on/off 12 Sets climate control to automatic

Rear control panel only in connection with special equipment seat heating
Rear control panel only in connection with special equipment seat heating

1 Sets the rear-compartment climate control to automatic 2 Switches rear-compartment climate control on/off 3 Directs the airflow through the rear air vents 4 Directs the airflow through the footwell vents

Notes on using climate control

The following contains notes and recommendations on optimum operation of dual-zone automatic climate control.

- Activate climate control using the buttons. The indicator lamps in and
the  and buttons. The indicator lamps in
the buttons light up. and
- Set the temperature to 72 °F (22 buttons light up.


- Set the temperature to 72 °F (22 °C).

- Only use the "defrosting" function briefly until the windshield is clear again.

- Only use "air-recirculation" mode briefly, e.g. if there are unpleasant outside odors or when in a tunnel. The windows could otherwise fog up as, in air-recirculation mode, no fresh air is drawn into the vehicle.

- Use the ZONE function to adopt the temperature settings on the driver's side for the front-passenger side as well. The indicator lamp in the out. button goes
out.

Control panel for 3-zone automatic climate control

Canada only
Canada only

1 Sets the temperature, left 2 Defrosts the windshield 3 Activates/deactivates the residual heat function 4 Activates/deactivates cooling with air dehumidification 5 Switches the rear window defroster on/off 6 Sets the temperature, right 7 Switches the ZONE function on/off 8 Switches climate control on/off 9 Sets the air distribution 10 Increases the airflow 11 Reduces the airflow
12 Display
13 Adjusts the climate control settings (AIR FLOW) 14 Activates/deactivates air-recirculation mode 15 Sets climate control to automatic

Rear control panel

16 Increases the airflow 17 Sets the temperature
18 Sets the rear-compartment climate control to automatic 19 Directs the airflow through the rear air vents 20 Directs the airflow through the footwell vents 21 Switches rear-compartment climate control on/off 22 Reduces the airflow

USA only
USA only

1 Sets the temperature, left 2 Defrosts the windshield 3 Switches maximum cooling MAX COOL on/off 4 Activates/deactivates cooling with air dehumidification 5 Switches the rear window defroster on/off 6 Sets the temperature, right 7 Switches the ZONE function on/off 8 Switches climate control on/off 9 Sets the air distribution 10 Increases the airflow 11 Reduces the airflow
12 Display
13 Adjusts the climate control settings (AIR FLOW) 14 Activates/deactivates air-recirculation mode 15 Sets climate control to automatic

Rear control panel

16 Increases the airflow 17 Sets the temperature
18 Sets the rear-compartment climate control to automatic 19 Directs the airflow through the rear air vents 20 Directs the airflow through the footwell vents 21 Switches rear-compartment climate control on/off 22 Reduces the airflow

Notes on using 3-zone automatic climate control

The following contains notes and recommendations on optimum operation of automatic climate control.

- Activate climate control using the buttons. The indicator lamps in the and
and buttons. The indicator lamps in the
buttons light up. and
- In automatic mode, you can also use the buttons light up.


- In automatic mode, you can also use the (FOCUS/MEDIUM/DIFFUSE). The button to set a climate mode
(FOCUS/MEDIUM/DIFFUSE). The MEDIUM level is recommended.

- Set the temperature to 72 °F (22 °C).

- Only use the "defrosting" function briefly until the windshield is clear again.

- Only use "air-recirculation" mode briefly, e.g. if there are unpleasant outside odors or when in a tunnel. The windows could otherwise fog up as, in air-recirculation mode, no fresh air is drawn into the vehicle.

- Use the ZONE function to adopt the temperature settings on the driver's side for the front-passenger side and the rear compartment as well. The indicator lamp in the - Use the residual heat function if you want button goes out.


- Use the residual heat function if you want to heat or ventilate the vehicle interior when the ignition is switched off. The "residual heat" function can only be activated or deactivated with the ignition switched off.

    See also:

    Side windows
    Important safety notes WARNING While opening the side windows, body parts could become trapped between the side window and the door frame as the side window moves. There is a risk of injury. M ...

    Driving tips
    Kickdown Use kickdown for maximum acceleration: ■ Depress the accelerator pedal beyond the pressure point. The transmission shifts to a lower gear depending on the engine speed. ■ ...

    Tires
    ...

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