2019 MERCEDES-BENZ CLA COUPE battery location

driving (driver assis
tance sy stems). In addition,
yo ur vehicle pr ovides com fort and enter tainment
functions, which are also made possible byelec‐
tronic control units.
Elect ronic control units contain da tamemories
which can temp orarily or permanently store
te ch nical information about theve hicle's operat‐
ing state, component loads, main tenance
re qu irements and tech nical events or faults.
In general, this information documents thest ate
of a component part, a module, a sy stem or the
sur roundings such as:
R operating status of sy stem components (e.g.
fi ll le vels, battery status, tyre pressure)
R status messages concerning theve hicle or
its individual components (e.g. number of
wheel revo lutions/speed, longitudinal accel‐
eration, lateral acceleration, display of fas‐
te ned seat belts)
R malfunctions or faults in impor tant sy stem
components (e.g. lights, brakes)
R information on events leading tovehicle
damage R
system reactions in special driving situations
(e.g. airbag deployment, inter vention of sta‐
bility control sy stems)
R ambient conditions (e.g. temp erature, rain
sensor)
In addition toprov iding the actual control unit
function, this data assists the manufacturer in
de tecting and rectifying faults and optimising
ve hicle functions. The majority of this data is
te mp orary and is only processed in theve hicle
itself. Only a small portion of the data is stored
in theeve nt or fault memor y.
When your vehicle is serviced, tech nical da ta
from theve hicle can be read out byservice net‐
wo rkemplo yees (e.g. workshops, manufactur‐
ers) or third parties (e.g. breakdown services).
Services include repair services, maintenance
processes, warranty claims and quality assur‐
ance measures, forex ample. The read out is per‐
fo rm ed via the legally prescribed port forthe
diagnostics connection in theve hicle. The
re spective service network locations or third
parties collect, process and use the data. They
document tech nical statuses of theve hicle, assist in
finding faults and impr oving quality and
are transmitted tothe manufacturer, if neces‐
sar y.Fu rthermore, the manufacturer is subject
to product liability. Forth is, the manufacturer
requ irestech nical da tafrom vehicles.
Fa ult memories in theve hicle can be reset by a
service outlet as part of repair or maintenance
wo rk.
Depending on the selected equipment, you can
import data into theve hicle's comfort and info‐
ta inment functions yourself.
This includes, forex ample:
R multimedia data such as music, films or pho‐
to sfo r playback in an integrated multimedia
sy stem
R address book data for use in connection with
an integrated hands-free sy stem or an inte‐
grated navigation sy stem
R entered navigation destinations
R data about the use of Internet services
This data can be sa ved locally in theve hicle or it
is located on a device which you ha veconnected
to theve hicle (e.g. smartphone, USB flash drive Gene
ral no tes 31

Display messages
Possible causes/consequences and M
MSolutions
Ve hicles with a digital vehicle keyst icke r:on lyafe w or no authorisations remain forst arting the engine. #
Order a new digital vehicle keyst icke r from a Mercedes-Benz Service Centre or at http://www.mercedes-
benz.com/connect.
Á
Replace key *T
hekey needs tobe replaced. #
Consult a qualified specialist workshop.
Á Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (/ page78).
Á
Key not detected (white
display message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot forst arting with theke y (/ page159). 57 0
Displaymessa ges and warning/indicator lamps

Communication module function ........
.421
Connection status .............................. .424
Displ aying the connection status ........ .424
Es tablishing .........................................4 23
Es tablishing automatically ...................4 23
Information .......................................... 421
Mobile phone de tails .......................... .423
Re strictions ......................................... 421
Setting access da ta(Blue tooth ®
) ........ 422
Setting automatic disconnection .........4 24
Setting up (Blue tooth®
) .......................4 22
Setting up (Wi-Fi) ................................. 422
Internet radio
Calling up ............................................ 428
Calling up thest ation list (category
last selec ted) .......................................4 30
Deleting stations ................................ .430
Logging out ......................................... 430
Overview ............................................. 429
Re gis tering .......................................... 430
Saving stations .................................... 430
Selecting and connecting toast ation
............................................................ .430
Selecting stre am ................................ .430
Setting options ................................... .430 Te
rm s of use ........................................4 30
iPhone ®
see Apple CarPlay™
see Mercedes-Benz Link
ISOFIX child seat securing sy stem
Fitting .................................................... 63
Seats suitable for attaching ................... 59 J
Jack Declaration of conformity ...................... 27
St orage location ..................................4 99
Jump-start connection ............................474
Gene ral no tes ...................................... 472 K
Ke y.............................................................. 76
Ac oustic locking verification signal ........ 77
Battery ................................................... 78
Emergency key ...................................... 78
Energy consumption .............................. 77
Fe atures ................................................ 76
Ke yring attachment .............................. 78
Overview ................................................ 76Problem .................................................79
Un locking setting .................................. 77
Ke y functions
Deactivating .......................................... 77
KEYLESS-GO Locking theve hicle ................................ 82
Problem .................................................83
Un locking setting .................................. 77
Un locking theve hicle ............................82
Kickd own.................................................. 173
Using ................................................... 173
Knee airbag ................................................ 41 L
Lamp see In terior lighting
Lamps (instrument display) see Warning/indicator lamps
Lane de tection (au tomatic)
see Active Lane Keeping Assist
Lane Keeping Assist
see Active Lane Keeping Assist 61 6
Index