A departure time has been
activated. The departure
time appears in the dis-
play.
A departure time has been
activated. The auxiliary
ventilation is switched on
and the number in the dis-
play shows the remaining
time in minutes. If the
vehicle is not started after
this remaining time, the
running time is increased
by five minutes.
A departure time has been
activated. The auxiliary
heating is switched on and
the number in the display
shows the remaining time
in minutes. If the vehicle is
not started after this
remaining time, the run-
ning time is increased by
five minutes.
Setting a departure time
The auxiliary heater timer function calculates
the switch-on time according to the outside
temperature and the activated departure time.
This means that the vehicle is preheated or pre-
cooled by the departure time. The auxiliary
heater adopts the temperature setting of the
heater, TEMPMATIC or THERMOTRONIC.
If the departure time is reached and the engine
is not started, the auxiliary heating system con-
tinues to run for approximately 5 minutes. It
then switches off automatically.
When the auxiliary heating system is operating
and the engine is started at the end of the
remaining time, the heater booster function of
the auxiliary heating system is activated. You
can switch off the auxiliary heating via the
^
button on the remote control or by using the
button on the centre console (
Y
page 145).
When the auxiliary heating system is ventilating
and the engine is started at the end of the
remaining time, the heater booster function
switches off automatically.
Make sure that the time set in the vehicle is
correct before setting the departure time
(
Y
page 240). Otherwise, the auxiliary heating
may switch on at the wrong time and at an
unsuitable location. When setting the departure
time, also observe the important safety notes
for operation of the auxiliary heating
(
Y
page 144).
X
Briefly press the
u
button.
X
Press the
,
or
.
button repeatedly
until the display shows the time to be
changed.
X
Press the
u
and
^
buttons simultane-
ously.
The
Î
symbol in the remote control display
flashes.
X
Set the desired departure time using the
,
or
.
button.
i
The longer you press the
,
or
.
but-
ton, the faster the time changes.
X
Press the
u
and
^
buttons simultane-
ously.
The new departure time is stored.
Activating the set departure time
X
Briefly press the
u
button.
X
Press the
,
or
.
button repeatedly
until the displays shows the desired departure
time.
X
Press the
u
button.
The display shows the
Í
symbol and the
departure time with its code letters
A, B or C.
Deactivating the set departure time
X
Briefly press the
u
button.
X
Press the
,
or
.
button.
The display shows the status of the auxiliary
heating.
X
Press the
.
button.
The display shows the first departure time
saved.
X
Press the
^
button.
The display shows
OFF
Switching the auxiliary heater on/off
using the on-board computer
General notes
You can specify up to three departure times, one
of which may be activated.
The auxiliary heating timer function calculates
the switch-on time according to the outside
temperature and the activated departure time.
This means that the vehicle is preheated or pre-
cooled by the departure time. The auxiliary heat-
Operating the auxiliary heating system
147
Climate control
Z
