service reset MERCEDES-BENZ CLA COUPE 2021 Owners Manual

#
Stow all objects in theve hicle securely
so that they cannot getinto the driver's
fo ot we ll. #
Always /t the 0oor mats securely and as
prescribed in order toensure that there
is alw ays su1cient room forth e pedals. #
Do not use loose 0oor mats and do not
place 0oor mats on top of one ano ther. *
N
NO OTE
TE Battery discharging from using devi-
ces connected tothe diagnostics connec-
tion Using devices at
the diagnostics connection
drains the batter y. #
Check thech arge leve l of the batter y. #
Ifth ech arge leve l is lo w,charge the bat-
te ry, e.g. bydriving a considerable dis-
ta nce. Please also no
tethe information about the 12 V
battery and short-dis tance trips in the "Driving
and Parking" chap ter (/ page 163). Connecting and using ano
ther device with the
diagnostics connection can ha vethefo llowing
e.ects:
R Malfunctions in theve hicle system
R Perm anent damage tovehicle components
Please referto thewa rranty term s and conditions
fo rth is matter. Moreo
ver,connecting equipment tothe diagnos-
tics connection can lead toemissions monitoring
information being reset, forex ample. This may
lead totheve hicle failing tomeet there qu ire-
ments of the next emissions inspection during the
main inspection. Quali/ed
Quali/ed
specialis
specialist w
t work
ork shop
shop
A qu ali/ed specialist workshop has the necessary
special skills, tools and quali/cations tocor rectly
car ryout any necessary workon your vehicle.
This particular lyapplies tosaf ety-re leva nt wo rks.
Alw ays ha vethefo llowing workcar ried out on
yo ur vehicle at a quali/ed specialist workshop:
R Safety-re leva nt wo rks
R Service and maintenance work
R Repair work
R Modi/cations as well as installations and con-
ve rsions
R Workon electronic components
R Plug-in h
Plug-in h ybr
ybrid:
id:workon thehy brid system General no
tes
39
39

ing state, component loads, maintenance
requ ire-
ments and tech nical events or faults.
Depending on theve hicle equipment, thefo llo w-
ing data are stored:
R operating status of system components, such
as /ll le vels, tyre pressure or battery status
R malfunctions or faults in impor tant system
components, such as lights or brakes
R system reactions in special driving situations,
such as airbag depl oyment or the inter vention
of stability cont rol systems
R information on events leading tovehicle dam-
age
In cer tain cases, it may be requ ired tostore da ta
th at wo uld ha veotherwise been used only temp o-
rari ly. This may be the case if theve hicle has
de tected a malfunction, forex ample.
If yo u use services, such as repair services and
maintenance work, stored operational data as
we ll as theve hicle identi/cation number can be
re ad out and used. They can be read out by
service network emplo yees, such as workshops
and manu facturers or third parties, such as break- down services. The same is true in
the case of
wa rranty claims and quality assurance measures.
In general, there adout is per form ed via the legally
prescribed port forth e diagnostics connection in
th eve hicle. The operational data that are read out
document tech nical states of theve hicle or of
individual components and assist in the diagnosis
of malfunctions, compliance with warranty obli ga-
tions and quality impr ovement. Tothat end, these
data, in particular information about component
loads, tech nical events, malfunctions and other
fa ults may be transmitted along with theve hicle
identi/cation number tothe manufacturer. Fur-
th ermore, the manufacturer is subject toproduct
liability. Forth is reason the manufacturer also
uses operational data from theve hicle, forex am-
ple, forre calls. These data can also be used to
ex amine the customer's warranty and guarantee
claims.
Fa ult memories in theve hicle can be reset by a
service outl etor at your requ est as part of repair
or maintenance work. Conv
Conv enience and inf ot
enience and inf otainment functions ainment functions
Yo u can store con venience settings and individual
settings in theve hicle and change or reset them
at any time.
Depending on theve hicle equipment, this
includes thefo llowing settings, forex ample:
R seat and steering wheel positions
R suspension and climate cont rolsettings
R individual settings, such as interior lighting
Depending on the selected equipment, you can
import data into vehicle inf otainment functions
yo urself.
Depending on theve hicle equipment, this
includes thefo llowing data, forex ample:
R multimedia data, such as music, /lms or pho-
tosfo r playback in an integ rated multimedia
system
R address book data for use in connection with
an integ rated hands-free system or an integ ra-
te d navigation system
R entered navigation destinations
R data about the use of Internet services General no
tes
43 43

%
Websites cannot be shown while theve hicle is
in motion. Ov
Ov
er
ervie
vie w of smar
w of smar tphone int
tphone int egr
egration
ation Wi
th Sma rtphone Integ ration, you can use cer tain
functions on your mobile phone via the multime-
dia system displa y.
Only one mobile phone at a time can be connec-
te d via Smartphone Integ ration tothe multimedia
system. Also for use with two phone mode with
smartphone integ ration, only one additional
mobile phone can be connec ted using Blue tooth ®
with the multimedia system.
The full range of functions for Smartphone Inte-
gr ation is only possible with an Internet connec-
tion. The appropriate application must be down-
loaded on the mobile phone touse Smartphone
Integ ration. The mobile phone must be switched
on and connec tedto a USB port with theç
symbol on the multimedia system using a suitable
cable.
Apps for Smartphone Integ ration
R Apple CarPlay ® R
Android Auto
% For saf etyre asons, the /rst activation of
Smartphone Integ ration on the multimedia
system must be car ried out when theve hicle
is stationary and the parking brake is applied.
Yo u can start Apple CarPlay ®
or Android Auto
from the device manager.
% Mercedes-Benz recommends disconnecting
th e connecting cable only when theve hicle is
stationar y.
Ov
Ov er ervie
vie w of tr
w of tr ansf
ansferr
erred v
ed v ehicle data
ehicle data
When using Smartphone Integ ration, cer tain vehi-
cle data is transfer redto the mobile phone. This
enables youto get the best out of selected mobile
phone services. Vehicle data is not directly acces-
sible.
The following system information is transmitted:
R SoTware release of the multimedia system
R System ID (anonymised)
The transfer of this data is used tooptimise com-
munication between theve hicle and the mobile
phone. To
do this, and toassign se veralve hicles tothe
mobile phone, a vehicle identi/er is random lyge n-
erated.
This has no connection totheve hicle identi/ca-
tion number (VIN) and is dele ted when the multi-
media system is reset (/ page 292).
The following driving status data is transmitted:
R Transmission position engaged
R Distinction between par ked, standstill, rolling
and driving
R Day/night mode of the inst rument clus ter
R Drive type
The transfer of this data is used toalter how con-
te nt is displa yedto cor respond tothe driving sit-
uation.
The following position data is transmitted:
R Coordinates
R Speed
R Compass direction
R Acceleration direction MBUX multimedia system
313 313

R
Frequent operation in mountainous terrain or
on poor road sur faces
R When the engine is oTen leT idling for long
periods
R Operation in particular lydusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, ha vethe
interior air /lter, air /lter, engine oil and oil /lter,
fo rex ample, changed more frequentl y.The tyres
must be checked more frequently if theve hicle is
operated under increased loads. Further informa-
tion can be obtained at a quali/ed specialist work-
shop. Batt Batt
er
ery disconnection per
y disconnection per iods
iodsThe AS
SYST PLUS service inter val display can cal-
culate the service due date only when the battery
is connected. #
Display and no tedown the service due date
on the inst rument display before disconnect-
ing the battery (/ page 327). Engine com
Engine com
par
partment
tment A
A
ctiv
ctiv e bonne
e bonne t (pedes
t (pedestr trian pr ot
ian pr otection)
ection) Oper
Oper
ation of t
ation of t he activ
he active bonne
e bonne t (pedes
t (pedestr trian pr ot
ian pr otec-
ec-
tion)
tion)
In cer tain accident situations, the actuation of the
active bonnet reduces therisk of injury topedes-
trians. The rear area of the bonnet is raised by
appr oximately 70 mm.
Fo rth e drive tothewo rkshop, reset the actuated
active bonnet yourself (/ page 328).
ATer the active bonnet has been actuated, pedes-
trian pr otection may be limited.
Ha ve the full functionality of the active bonnet
re stored in a quali/ed specialist workshop.
R
R ese ese tting t
tting t he activ
he activ e bonnet
e bonnet &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. #
With your hand 0at, push down active bonnet
1 inthe area around the hinges on bo th
sides (ar rows ).
In doing so, the actuator is depressurised and
yo u may hear a hissing sound.
The engine bonnet must engage in position. #
Ifth e active bonnet can be raised slightly at
th ere ar in the area of the hinges, repeat the
step until it engages co rrectl y. 328
328
Maintenance and care