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138 Driving and parking
System limits
If overheating protection has been activated due to
several level changes in a short period of time,
AIRMATIC will not function or its availability will be
limited. The
Compressor is cooling
shown in the multifunction display.
After the cooling phase, AIRMATIC is again availa-
ble without restrictions.
Charging the high-voltage battery
Notes on charging the high-voltage battery
Information on the nominal voltage range and
charging times can be found in the technical data
(
page 251).
/
* NOTE High-voltage battery damage due to
leaving the vehicle idle for lengthy periods
of time
Lithium-ion batteries experience a natural self-
discharge.
Exhaustive discharging can therefore occur if
the vehicle is idle for several months. This can
damage the high-voltage battery.
To avoid damage, please observe the fol-
#
lowing recommendations when handling
the high-voltage battery.
* NOTE Accelerated ageing of the high-volt-
age battery due to not observing the fol-
lowing recommendations
As a result of its basic characteristics, the stor-
age capacity of, and the amount of energy
available from, the high-voltage battery decrea-
ses over the course of its life. As a result, the
maximum electrical range that can be achieved
by the vehicle is reduced and its maximum
electrical output can be impaired.
The following factors could accelerate the age-
ing of the high-voltage battery:
frequently fully charging (charge level
R
100%) the high-voltage battery, especially
when this process is not directly followed
by a journey
frequent rapid charging with direct current
R
(mode 4)
leaving the vehicle idle for lengthy periods
R
at high ambient temperatures
#
message is
Recommendations when handling the high-voltage
battery:
R
R
R
R
R
R
R
You can contribute to reducing the vehicle's
energy consumption in the following ways:
R
R
R
The charging time of the high-voltage battery may
change over the course of its life.
%
You can charge the high-voltage battery with both
alternating current (mode 2 or 3) and direct cur-
rent (mode 4).
T447 0414 02
To avoid accelerated ageing, please
observe the following recommendations
when handling the high-voltage battery.
Only rapid-charge the high-voltage battery with
direct current (mode 4) if necessary.
Charge the high-voltage battery to a charge
level of 85% on average. Beyond a charge level
of 85%, the charging time is significantly
increased.
When leaving the vehicle idle for long periods,
park up the vehicle with the high-voltage bat-
tery at a charge level between 30% and 50%.
Do not keep the high-voltage battery continu-
ously connected to power supply equipment.
If leaving the vehicle idle for lengthy periods of
time avoid, if possible, high and low outside
temperatures.
Check the high-voltage battery's level of
charge every six weeks (
If the charge level is below 30%, recharge the
high-voltage battery.
Do not disconnect the 12 V on-board electrical
system battery even if the vehicle is left idle for
long periods. The vehicle cannot otherwise
monitor the charge level of the high-voltage
battery.
an anticipatory driving style (
reduced use of electrical consumers
having the vehicle regularly maintained
The on-board computer displays the charge
level of the high-voltage battery in the display
of the instrument cluster (
page 174).
/
page 134)
/
page 173).
/
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