130
Instruments and controls
Using the auxiliary heater
Whilst driving
To speed up heating and/or maintain the set cabin temperature the auxiliary heater can
be switched on during driving.
This would be desirable during cold-weather condition or while driving slowly in heavy
traffic.
In this situation the auxiliary heater can only be switched on using the auxiliary heater
key (11) on the Climate Control Panel.
At standstill while staying in the cabin
NOTE: If the vehicle is equipped with the so called 'REST' heat usage
function, the text 'REST' (C) lights up in the display.
In this case the remaining engine temperature is used to heat the cabin,
before actually switching on the auxiliary heater.
Up to a maximum of one hour or until the engine temperature becomes too
low to heat up the cabin.
During 'REST' heat usage the auxiliary heater icon remains off and the text
'REST' is visible in the display (1) of the Climate Control Panel.
The auxiliary heater can be switched on
both with key (11) on the Climate
Control Panel or with switch (2) on the
bunk console.
The cabin temperature is (or already
was) set using the rotary switch (2) on
the Climate Control Panel or using
switch (3) on the bunk console.
Depending on the type of auxiliary
heater fitted, only the cabin temperature
is controlled or in addition also the
engine coolant system is heated.
NOTE: The auxiliary heater
prioritises the set cabin
temperature and controls the
engine coolant depending
on the outside weather
conditions. At very severe
conditions (low temperature,
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DW63246305.book Page 130 Friday, March 22, 2019 4:54 PM
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