2019-2024 Mercedes CLA 4 Door Technical data -> Vehicle electronics User Manual
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Technical data -> Vehicle electronics for Your Mercedes CLA 4 Door Second Generation (2019-2024)

NNoottes on tes on tecechnical datahnical data
*
NO
NOTETE Mercedes-AMG vehicles
#
Observe the notes in the Supplement.
You could otherwise fail to recognize
dangers.
The data stated only applies to vehicles with
standard equipment. You can obtain further infor-
mation from an authorized Mercedes-Benz Cen-
ter.
VVehicle electrehicle electronicsonics
TTwwo-wao-way ry radiosadios
NNoottes on instes on installing twalling two-wao-way ry radiosadios
&
W
WARNINGARNING Risk of accident due to
improper work on two-way radios
If two-way radios are manipulated or retrot-
ted incorrectly, the electromagnetic radiation
from the two-way radios can interfere with the
vehicle electronics and jeopardize the operat-
ing safety of the vehicle.
#
You should have all work on electrical
and electronic components carried out
at a qualied specialist workshop.
&
W
WARNINGARNING Risk of accident due to
improper operation of two-way radios
If you use two-way radios in the vehicle
improperly, their electromagnetic radiation
can disrupt the vehicle's electronics. This is
the case in the following situations, in particu-
lar:
R
The two-way radio is not connected to an
exterior antenna.
R
The exterior antenna is installed incor-
rectly or is not a low-reection antenna.
This could jeopardize the operating safety of
the vehicle.
#
Have the low-reection exterior antenna
installed at a qualied specialist work-
shop.
#
When operating two-way radios in the
vehicle, always connect them to the low-
reection exterior antenna.
*
N
NOOTETE Invalidation of the operating permit
due to failure to comply with the instruc-
tions for installation and use
The operating permit may be invalidated if the
instructions for installation and use of two-way
radios are not observed.
#
Only use approved frequency bands.
#
Observe the maximum permissible out-
put power in these frequency bands.
#
Only use approved antenna positions.
326326
Technical data
1
Front roof area
2
Rear roof area
3
Rear fenders
4
Trunk lid
On vehicles with a panoramic sliding sunroof,
installing an antenna to the front or rear roof area
is not permitted.
On the rear fenders, it is recommended that you
install the antenna on the side of the vehicle clos-
est to the center of the road.
Use Technical Specication ISO/TS 21609 (Road
Vehicles – "EMCs for installation of aermarket
radio frequency transmitting equipment") when
retrotting two-way radios. Comply with the legal
requirements for detachable parts.
If your vehicle has installing for two-way radio
equipment, use the power supply and antenna
connectors provided in the pre-installation.
Observe the manufacturer's supplements when
installing.
T
Twwo-wao-way ry radio tradio transmission outputansmission output
The maximum transmission output (PEAK) at the
base of the antenna must not exceed the values in
the following table.
F
Frreqequency band and maximum truency band and maximum transmission out-ansmission out-
putput
FFrreqequency banduency band Maximum trMaximum transmis-ansmis-
sion outputsion output
Short wave
3 - 54 MHz
100 W
4 m frequency band
74 - 88 MHz
30 W
2 m frequency band
144 - 174 MHz
50 W
Terrestrial Trunked
Radio (TETRA)
380 - 460 MHz
10 W
70 cm frequency band
400 - 460 MHz
35 W
Two-way radio
(2G/3G/4G)
10 W
Technical data
327
327
The following can be used in the vehicle without
restrictions:
R
Two-way radios with a maximum transmission
output of up to 100 mW
R
RF transmitters with transmitter frequencies in
the 380 - 410 MHz frequency band and a
maximum transmission output of up to 2 W
(TETRA)
R
Mobile phones (2G/3G/4G)
There are no restrictions when positioning the
antenna on the outside of the vehicle for the fol-
lowing frequency bands:
R
Terrestrial Trunked Radio (TETRA)
R
70 cm frequency band
R
2G/3G/4G
RRegulategulatorory ry radioadio identicationidentication and notand noteses
RRegulategulatorory ry radioadio identicationidentication of small comof small compo-po-
nentsnents
Manufacturer information about radio-based vehi-
cle components can be found using the key
phrase "Regulatory radio identication" in the Dig-
ital Operator's Manual in the vehicle, on the Inter-
net and in the app.
RRegulategulatorory ry radioadio identicationidentication – Indonesia– Indonesia
Manufacturer information about radio-based vehi-
cle components can be found using the key
phrase "Regulatory radio identication – Indone-
sia" in the Digital Operator's Manual in the vehi-
cle, on the Internet and in the app.
%
These are not small components. Information
about small components can be found using
the key phrase "Regulatory radio identication
of small components".
InfInforormation on instmation on installation clearallation clearancesances
Information on installation clearances of wireless
vehicle components can be found using the key
phrase "Installation clearances" in the Digital
Operator's Manual in the vehicle, on the Internet,
and in the app.
FFurturtherher comcomponent-specicponent-specic infinforormationmation
Further component-specic information can be
found using the key phrase "further component-
specic information" in the Digital Operator's
Manual in the vehicle, on the Internet and in the
app.
328328
Technical data

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