Switching the auxiliary heater and auxiliary ventilation on and off
The auxiliary heater can be operated when the ignition is switched on and off.
Opening the Auxiliary heater menu
1. Touch the HOME button
.
2. Touch to open the Auxiliary heater menu.
Switching on the auxiliary heater
The auxiliary heater can be switched on as follows:
— Using the immediate heating function in the Auxiliary heater menu in the Infotainment system, or in the Exit
Vehicle menu (→ Exit menu).
—OR: Press the button on the remote control (→ Remote control for the auxiliary heater and auxiliary ventilation).
—OR: Program a departure time (→ Auxiliary heater and auxiliary ventilation).
The yellow LED for the auxiliary heater lights up in the instrument cluster when the auxiliary heater is switched on.
The auxiliary heater will not switch on if the 12-volt vehicle battery has a low charge level or the fuel tank is empty.
Switching off the auxiliary heater manually
The auxiliary heater can be switched off as follows:
— Using the immediate heating function in the Auxiliary heater menu in the Infotainment system, or in the Exit
Vehicle menu (→ Exit menu).
— Press the button on the remote control (→ Remote control for the auxiliary heater and auxiliary ventilation).
Auxiliary heater switches off automatically
—When the programmed departure time has been reached or when the set running time has expired (→ Auxiliary
heater and auxiliary ventilation).
—When the yellow indicator lamp(fuel gauge) lights up (→ Fuel gauge).
—If the charge level of the 12-volt vehicle battery is too low.
The auxiliary heater runs on for a short time after it is switched off manually or automatically so that the remaining
fuel in the system can be burnt off.
Operating the auxiliary heater as a supplementary heater
When the engine has been started, the auxiliary heater can continue operation as a supplementary heater. The
following conditions must be met for this:
—The Automatic supplementary heater function is activated in the air conditioning settings in the Infotainment
system.
—The outside temperature is lower than +5°C(+41°F).
The supplementary heating function is switched off automatically after a short time.
When the vehicle is at a standstill, the auxiliary heater can be activated up to three times in succession for the
maximum operating duration.
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