ing 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 using the
button on the centre console (
Y
page 145) or
with the remote control (
Y
page 146).
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 in the on-board com-
puter has been set correctly before you set 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 heat-
ing (
Y
page 144).
Setting the departure time
Using the steering wheel buttons
X
Press
=
or
;
to select the
Sett.
menu.
X
Press
:
or
9
to select
Heating
.
X
Press
a
to confirm.
The display shows the current setting for the
auxiliary heating.
If no departure time has been activated, the
display shows
Timer off
.
If a departure time has been activated, the
display shows the code letter
A
,
B
or
C
and the
activated departure time.
X
To change the setting: press
a
again.
The display shows the current setting in the
DEPARTURE TIME
list.
X
To activate the departure time: press
:
or
9
to select one of the three departure
times
A
,
B
or
C
and confirm with
a
.
The display shows the code letter and the
activated departure time for the auxiliary
heating.
or
X
To deactivate the departure time: press
the
:
or
9
button to select
Timer off
and confirm with
a
.
The display shows
Timer off
as the current
setting for the auxiliary heating.
or
X
To set the departure time: press
:
or
9
to select
A
,
B
or
Change C
and confirm
with
a
.
X
Press
=
or
;
to switch between hours
and minutes of the departure time.
X
Press
:
or
9
to set the hours or
minutes.
X
Then press
a
to confirm.
The changed departure time is activated. The
display shows the corresponding code letter
together with the changed time.
Replacing the remote control battery
G
WARNING
Batteries contain toxic and corrosive substan-
ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal
injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
H
Environmental note
Batteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in an
environmentally responsible
recycling system.
Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used batter-
ies.
If the remote control display shows an empty
battery symbol, the battery needs to be
replaced.
148
Operating the auxiliary heating system
Climate control
