All of the vehicle's high-voltage electrical
system components are marked with yellow
warning stickers which warn you of the dan-
gers of high voltages. The cables of the vehi-
cle's high-voltage electrical system are
orange in colour.
Observe the following before carrying out
general work such as changing a bulb or
checking the coolant level:
R
the ignition is switched off
R
the charging cable for charging the high-
voltage battery is disconnected
Automatically switching off the vehicle's
high-voltage electrical system
In order to prevent anyone coming into con-
tact with high voltage, the high-voltage
electrical system is generally switched off
automatically in the following cases:
R
the restraint systems are activated in the
event of an accident
R
an electrical short circuit is detected in the
vehicle's high-voltage electrical system
R
an electrical connection in the vehicle's
high-voltage electrical system is discon-
nected
High-voltage battery
G
WARNING
In the event of a vehicle fire, the internal
pressure of the high-voltage battery could
exceed a critical value. In this case, flam-
mable gas escapes through a vent valve in
the vehicle's underbody. The gas can
ignite. There is a risk of injury.
Leave the danger area immediately. Secure
the danger area at a suitable distance,
whilst observing legal requirements.
G
WARNING
If the housing of the high-voltage battery
has been damaged, electrolyte and gases
may leak out. These are poisonous and
caustic. There is a risk of injury.
Avoid contact with the skin, eyes or cloth-
ing. Immediately rinse electrolyte
splashes off with water and seek medical
attention straight away.
Correct use
If warning stickers are removed, you may fail
to recognise certain dangers. Leave warning
stickers in place.
The following are important sources of infor-
mation in regard to vehicle use:
R
safety notes in this Owner's Manual
R
technical data in this Owner's Manual
R
traffic rules and regulations
R
laws and safety standards pertaining to
motor vehicles
Implied warranty
!
Follow the instructions in this manual
about the proper operation of your vehicle
as well as about possible vehicle damage.
Damage to your vehicle that arises from
culpable contraventions against these
instructions is not covered either by the
smart implied warranty or by the New or
Used-Vehicle Warranty.
QR codes for rescue card
The QR code is affixed on the charge socket
flap and on the door pillar (B-pillar), on the
opposite side. In the event of an accident,
rescue services can use the QR code to
quickly determine the corresponding rescue
card for a vehicle. The current rescue card
contains the most important information
about the vehicle in compact form, such as
the routing of the electric cables. Further
information: www.mercedes-benz.de/qr-
code
Data stored in the vehicle
Information from electronic control
units
Your vehicle is equipped with electronic
control units. Some of them are necessary for
your vehicle to function safely, some provide
>> Introduction.
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