Mercedes-Benz S-Class 2020 Owner's Manual page 192

The health of persons with limited tempera‐
ture sensitivity or a limited ability to react to
high temperatures may be affected or they
may even suffer burn-like injuries.
Do not touch the windscreen while the
#
windscreen heater is switched on.
Allow the windscreen to cool down
#
before touching it.
The windscreen heater will be enabled automati‐
cally if ¬ is activated on the climate bar on
the central display.
After the vehicle is started, the windscreen
heater is switched on automatically as required.
Pre-entry climate control for departure time
Pre-entry climate control for departure time
function
& WARNING Danger to life due to expo‐
sure to extreme heat or cold in the vehi‐
cle
If people, particularly children, are exposed
to extreme temperatures over an extended
period of time, there is a risk of serious
injury or danger to life.
Never leave persons, children in partic‐
#
ular, unattended in the vehicle.
& WARNING Risk of burns due to repeat‐
edly switching on the seat heating
Repeatedly switching on the seat heating can
cause the seat cushion and seat backrest
padding to become very hot.
In particular, the health of persons with limi‐
ted temperature sensitivity or a limited ability
to react to high temperatures may be affec‐
ted or they may even suffer burn-like injuries.
Climate control 189
Do not repeatedly switch on the seat
#
heating.
To protect against overheating, the seat heating
may be temporarily deactivated after it is
switched on repeatedly.
% This function is available only in vehicles
with a 48 V on-board electrical system (EQ
Boost technology).
The air inside the vehicle can be heated, ventila‐
ted or cooled to the set temperature when the
vehicle is parked.
When the vehicle is connected to power supply
equipment, priority is given to charging the 48 V
battery to a specified minimum charge.
The running time of pre-entry climate control
may be reduced under the following conditions:
The vehicle is not connected to power supply
R
equipment.
The 48 V battery is not fully charged.
R
With active pre-entry climate control, the charge
level of the 48 V battery may be reduced, even if
the charging cable connector is connected.