When the vehicle is in motion, use the lap timer only in driving situations which are easy to control.
Fuel gauge
Fig. 15 Fuel gauge in the analogue instrument cluster.
Fig. 16 Fuel gauge in the Active Info Display.
First read and observe the introductoryinformation and safety warnings⇒Introduction
Fuel tank almost empty.
The indicator lamp lights up yellow. The reserve volume, red marking, is being consumed ⇒ .
Fill the tank as soon as possible.
Water in the diesel fuel.
The indicator lamp lights up yellow.
Switch off the engine and seek expert assistance.
Tank cap open.
The indicator lamp lights up yellow.
Close the tank cap.
Operating noises can be heard if the auxiliary heater is switched on.
The 12-volt vehicle battery will discharge if the auxiliary heating or ventilation is run several times
over an extended period. Drive the vehicle for an appropriate distance in between in order to
recharge the 12-volt vehicle battery.
The fuel gauge indication may not be accurate (just above the reserve quantity) when the vehicle is
parked on a slope; this may restrict the function of the auxiliary heater.
The auxiliary heater may switch on automatically when the engine is started at temperatures below
+5°C (+41°F) in order to provide additional hea ng power. The supplementary heating function will
switch off again automatically after a short time.
Programming the auxiliary heater and ventilation
First read and observe the introductoryinformation and safety warnings⇒Introduction
Opening the Auxiliary heater menu
The auxiliary heater is programmed in the Infotainment system.
Manual air conditioning system
Press the button on the Infotainment system.
Touch the Vehicle and function buttons.
Climatronic
Open the air conditioning settings in the Infotainment system.
Touch the function button.
Changing operating mode
Open the Auxiliary heater menu.
Press the Heating or Ventilation function buttons to change mode.
At high outside temperatures, the auxiliary ventilation system directs fresh air into the vehicle and
prevents the accumulation of heat.
Programming the auxiliary heater
Activation is always for one heating or ventilation operation only. The departure time must be
activated again for every start.
