Mercedes-Benz GLB Owner's Manual page 182

The air inside the vehicle cannot be cooled
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down to temperatures below the outside
temperature.
If the outside temperature changes, ventila‐
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tion mode automatically switches to heating
mode or heating mode automatically
switches to ventilation mode.
The stationary heater and the exhaust gas outlet
are situated in front of the right-hand front
wheel.
Switching the stationary heater/stationary
ventilation on/off via the control panel
& DANGER Risk of fatal injury due to poi‐
sonous exhaust gases
If the tailpipe is blocked or sufficient ventila‐
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter the vehi‐
cle. This is the case in enclosed spaces or if
the vehicle gets stuck in snow, for example.
Always switch the stationary heater off
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in enclosed spaces without an air
extraction systems, e.g. in garages.
Keep the tailpipe and the area around
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the vehicle free from snow when the
engine or the stationary heater are run‐
ning.
Open a window on the windward side of
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the vehicle to ensure an adequate sup‐
ply of fresh air.
& WARNING Risk of fire due to hot station‐
ary heater components
When the stationary heater is switched on,
parts of the vehicle can become very hot,
e.g. the stationary heater exhaust system.
Flammable materials such as leaves, grass or
twigs may ignite if they come into contact
with:
hot parts of the stationary heater exhaust
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system
the exhaust gas itself
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There is a risk of fire.
When the stationary heater is switched
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on, make sure that:
Climate control 179
hot vehicle parts do not come into
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contact with flammable materials.
the exhaust gas can flow out of the
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stationary heater exhaust pipe
unhindered.
the exhaust gas does not come into
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contact with flammable materials.
* NOTE Battery discharge caused by sta‐
tionary heater or stationary ventilation
operation
Operating the stationary heater or stationary
ventilation drains the battery.
After heating or ventilating the vehicle
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twice, drive for a longer period of time.
Requirements:
The fuel tank has been filled to at least Õ.
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