SMART EQ forfour Owner's Manual page 27

Frequency Technology
range
2.4 GHz ISM
Bluetooth
waveband
(2400 MHz -
2483.5 MHz)
76 GHz - 76 GHzRadar ≤ 55 dBm
77 GHz
Diagnostics connection
The diagnostics connection is only intended
for the connection of diagnostic equipment
at a qualified specialist workshop.
G
WARNING
If you connect equipment to a diagnostics
connection in the vehicle, it may affect the
operation of vehicle systems. As a result,
the operating safety of the vehicle could be
affected. There is a risk of an accident.
Only connect equipment to a diagnostics
connection in the vehicle, which is
approved for your vehicle by Mercedes-
Benz.
G
WARNING
Objects in the driver's footwell may
restrict the clearance around the pedals or
block a depressed pedal. This jeopardises
the operating and road safety of the vehi-
cle. There is a risk of an accident.
Stow all objects securely in the vehicle so
that they do not get into the driver's foot-
well. Always fit the floormats securely and
as prescribed in order to ensure that there
is always sufficient room for the pedals. Do
not use loose floormats and do not place
several floormats on top of one another.
! If the engine is switched off and a device
is connected to a diagnostic connection,
the battery may become discharged.
Transmis-
sion output/
magnetic
field
strength
≤ 100 mW
®
e.i.r.p.
peak e.i.r.p.
Qualified specialist workshop
A qualified specialist workshop has the nec-
essary special skills, tools and qualifications
to correctly carry out any necessary work on
your vehicle. This particularly applies to
work relevant to safety.
Observe the information contained in the
Service Booklet.
Always have the following work carried out
on your vehicle at a smart centre:
work relevant to safety
R
service and maintenance work
R
repair work
R
modifications, installations and conver-
R
sions
work on electronic components
R
replacing the 12 V battery within the pre-
R
scribed interval, at the latest every three
years
You can obtain current information concern-
ing the servicing of your vehicle at any time
from a qualified specialist workshop, e.g. a
smart centre.
Replacing the 12 V battery
Observe the notes on the 12 V battery.
smart recommends that you have the 12 V
battery replaced at a qualified specialist
workshop, e.g. at a smart centre.
If you intend to replace the battery yourself,
please observe the following points:
always replace a defective battery with a
R
battery which fulfils the specific vehicle
requirements
The vehicle is equipped with either an AGM
(Absorbent Glass Mat) technology battery
or a lithium-ion battery. Full vehicle func-
tionality is only guaranteed with a battery
of the same technology. smart recommends
that you only use batteries of the same
technology which have been tested and
approved for your vehicle.
carry over detachable parts, e.g. the
R
breather hose, angled connecting piece or
terminal cover from the battery which is
being replaced
make sure that the breather hose is always
R
connected to the original opening on the
battery side
>> Introduction.
Z
25