Mercedes-Benz G-Class 2015 - Manual (Page 129)

Problems with the rear window
defroster
If the indicator lamp in the ª rear window
defroster button flashes, the on-board volt-
age is too low. The rear window defroster has
deactivated prematurely or cannot be activa-
ted.
X Switch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window defroster is activated
again automatically.
Activating/deactivating air-recircula-
tion mode
If you switch on air-recirculation mode, the
windows can fog up more quickly, in particu-
lar at low temperatures. Only use air-recircu-
lation mode briefly to prevent the windows
from fogging up.
X
Turn the SmartKey to position 2 in the igni-
tion lock (
Y
page 133).
X To activate: press the d button.
The indicator lamp in the d button lights
up.
i Air-recirculation mode is automatically
activated at high levels of pollution or at
high outside temperatures. When air-recir-
culation mode is activated automatically,
the indicator lamp in the d button is not
lit.
Outside air is added after approximately
30 minutes.
X To deactivate: press the d button.
The indicator lamp in the d button goes
out.
i Air-recirculation mode switches off auto-
matically:
R after approximately five minutes at out-
side temperatures below approximately
41 ‡
R after approximately five minutes if cool-
ing with air dehumidification is deactiva-
ted
R after approximately 30 minutes at out-
side temperatures above approximately
41 ‡ (5 †)
Activating/deactivating the residual
heat function
The "residual heat" function is only available
in Canada.
It is possible to make use of the residual heat
of the engine to continue heating the station-
ary vehicle for up to 30 minutes after the
engine has been switched off. The heating
time depends on the coolant temperature and
on the interior temperature that has been set.
i The blower will run at a low speed regard-
less of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated.
X
Turn the SmartKey to position
0(
Y
page 133) in the ignition lock or
remove it.
X To activate: press the Á button.
The indicator lamp in the Á button lights
up.
Operating the climate control systems
127
Climate
control
Z