The auxiliary heating /ventilation heats or ventilates the vehicle interior accord-ing to the values you have set on the air-conditioning control panel, and the inte-rior temperature. You can set up to three switch-on times using the operat-ing system.
You can activate and deactivate the auxiliary heating/ ventilation:
the switch on the centre console
the remote control and
the preset time function
The auxiliary heating switches off auto-matically after a maximum of 50 min-utes. You can have this time changed.
Visit a qualified specialist workshop, e.g. the nearest Mercedes-Benz Service Centre.
Before activating
You should preferably set the air conditioning to U.
We recommend that you set the tem-perature to 22 °C for both the left and right-hand sides.
The auxiliary heating /ventilation regu-lates the set temperatures automatical-ly.
Risk of fire and poisoning
G
Do not switch on the auxiliary heat-ing:
at the filling station
in confined spaces without an extraction system, e.g. in the ga-rage
Otherwise you could endanger your-self and others.
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Safe operation of the auxiliary heat-ing can no longer be guaranteed if the reserve fuel level is reached and the reserve fuel warning lamp in the instrument cluster lights up (page 400).
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The auxiliary heating /ventilation ventilates the vehicle interior before heating it, depending on the temper-ature and conditions. This ensures that the required temperature is achieved more quickly.
Switch on the centre console
1 To switch the auxiliary heating/
ventilation on/off
The indicator lamps in the switch may light up in blue, red or yellow.
Press and hold switch 1 for at least two seconds.
The red or the blue indicator lamp in the switch lights up.
The auxiliary heating / ventilation is activated.
Remote control
The remote control has a maximum range of approximately 300 m.
External influences may reduce the range of the remote control. These in-clude:
sources of radio interference
solid objects between the transmit-ter and the vehicle
the remote control being in an unfa-vourable position in relation to the
transmitting from an enclosed space
1 Indicator lamp 2 OFF
3 ON
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The auxiliary heating/ventilation can also be activated manually.
Optimum comfort can only be ob-tained by using the U setting.
Activating
P 54.25-3161-31
Activated Blue Auxiliary ventilation Red Auxiliary heating Yellow Auxiliary heating /
ventilation preset time
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For each vehicle, one additional re-mote control of the same configura-tion may be used. Any Mercedes-Benz Service Centre can provide you with details.
P83.70-3902-31
Press the ON button until green in-dicator lamp 1 in the remote con-trol lights up.
The red or the blue indicator lamp in the switch on the centre console goes out.
Switch on the centre console
Press and hold the switch for more than two seconds.
The red or the blue indicator lamp in the switch goes out.
The auxiliary heating / ventilation is deactivated.
Remote control
Press the OFF button until indicator lamp 1 lights up red.
The red or the blue indicator lamp in the switch on the centre console goes out.
The auxiliary heating / ventilation is deactivated.
Activating the timer function The multi-function display can be used to set three auxiliary heating/ventila-tion switch-on times, only one of which can be activated at any one time.
Setting the switch-on time
Press the è or ÿ switch on the multi-function steering wheel repeatedly until the Settings main menu appears.
Press the j or k button on the multi-function steering wheel repeatedly until the Settings submenu appears.
Press the æ or ç button re-peatedly until Heater is highlight-ed.
Press thej or k button re-peatedly until the Auxiliary heating menu is highlighted.
Press the æ or ç button re-peatedly until a switch-on time (e.g.
Time 1) is highlighted.
Deactivating
de P54.30-5353-31 en P 54.30-5402-31 fr P 54.30-5448-31 it P 54.30-5494-31 sp P 54.30-5540-31
de P54.30-5354-31 en P 54.30-5403-31 fr P 54.30-5449-31 it P 54.30-5495-31 sp P 54.30-5541-31
de P54.30-5355-31 en P 54.30-5404-31 fr P 54.30-5450-31 it P 54.30-5496-31 sp P 54.30-5542-31
Press the j or k button re-peatedly until the Switch-on time Set hours menu appears.
Press the æ or ç button re-peatedly until the required hours have been set.
Press thej or k button re-peatedly until the Switch-on time Set minutes menu ap-pears.
Press the æ or ç button re-peatedly until the required minutes have been set.
The auxiliary heating / ventilation switch-on time has been set and se-lected.
The yellow indicator lamp in the switch on the centre console lights up. When the auxiliary heating / ventilation is activated, the yellow indicator lamp goes out and the red or the blue indicator lamp lights up.
Calling up the switch-on time
Call up the Auxiliary heating switch-on time menu.
The current setting is highlighted.
Activating the timer function
Call up the Auxiliary heating menu.
Select the time at which the auxilia-ry heating / ventilation is to switch on using the æ or ç button.
If you select:
a time – the switch-on time is selected
Timer off – the automatic switch-on time is deactivated
A solar module is also available in con-junction with the panorama sliding sun-roof*. The electrical energy collected by this module drives the air-condition-ing ventilation blowers which, providair-condition-ing a constant airflow rate, ensure a pleas-ant temperature and fresh air in the ve-hicle interior after the engine has been turned off.
The airflow rate depends on the strength of the sun's rays; ventilation usually starts approximately two min-utes after the ignition has been switched off.
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de P54.30-5357-31 en P 54.30-5406-31 fr P 54.30-5452-31 it P 54.30-5498-31 sp P 54.30-5544-31
Solar module*