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To switch off: press the & button.
#
Switching on the target temperature
Switch on the ignition.
#
To switch on: press the & button.
#
To switch off: press the & button.
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Set the temperature using the w button.
#
Press the & button.
#
The red or blue indicator lamp on the &
button goes on or off.
Colors of the indicator lamp:
Blue: auxiliary ventilation has been switched
R
on.
Red: auxiliary heating has been switched on.
R
Yellow: departure time has been pre-selec‐
R
ted.
Auxiliary heating or ventilation switches off after
a maximum of 50 minutes.
Switching heater booster mode on and off
To switch on: start the engine.
#
Press the & button.
#
To switch off: press the & button.
#
Heater booster mode will be switched on at
an outside temperature of less than 32 °F
(0 °C) when necessary.
Problems with hot water auxiliary heating
Problem
FAIL¨
FAIL
FAIL¯
%
Adjusting the hot-water auxiliary heater with
the on-board computer
Requirements:
R
R
On-board computer:
,
Setting the switch-on time
#
#
Activating the programmed time
#
%
Selecting the programmed time
#
#
Possible causes/consequences and
Signal transmission between transmitter and vehicle is malfunctioning.
Change your position in relation to the vehicle, moving closer if nec‐
#
essary.
The starter battery is not sufficiently charged.
Charge the starter battery.
#
The fuel tank is not filled up to the reserve level.
Refuel at the nearest gas station.
#
Auxiliary heating is malfunctioning.
Have the auxiliary heating checked at a qualified specialist work‐
#
shop.
Climate control 101
Heater booster mode is available only for
vehicles with hot-water auxiliary heaters.
The fuel tank has been filled above the
reserve fuel level.
the ignition is switched on
Designs & Disp.
Heating
.
Select
Designs &
Disp..
Set the required departure time.
Select Vorwahlzeit.
The tick shows the function that has been
switched on.
The programmed time remains set only until
the next time the engine is started.
Select Vorwahlzeit.
Select required programmed time A, B or C.
M M
Solutions
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