wiring MERCEDES-BENZ C-CLASS COUPE 2021 Owners Manual

Alw
ays specify theve hicle identification number
(VIN) (/ page418) when ordering Mercedes-
Benz GenuineParts. Owner's Manual
This Owner's Manual describes all models and
all standard and optional equipment available for
yo ur vehicle at the time of this Owner's Manual
going topress. Countr y-specific dif fere nces are
possible. No tethat your vehicle may not be fit‐
te d with all features desc ribed. This is also the
case for sy stems and functions releva nt to
saf ety. Therefore, the equipment on your vehicle
may dif fer from that in the descriptions and illus‐
trations.
The original pur chase ag reement foryo ur vehicle
contains a list of all of the sy stems in your vehi‐
cle.
Should you ha veany questions concerning
equipment and operation, please consult a
Mercedes-Benz Service Centre.
The Owner's Manual and Service Booklet are
impor tant documents and should be kept inthe
ve hicle. Operating saf
ety &
WARNING Risk of inju rydue tomalfunc‐
tions or sy stem failure
In order toavo id malfunctions or sy stem fail‐
ures: #
Alw ays ha vethe specified service/
maintenance workas well as any nec‐
essary repairs car ried out at a qualified
specialist workshop. &
WARNING Risk of accident or inju rydue
to improper modifications toelectronic
components
Modifications toelectronic components,
th eir software or wiring can impair their func‐
tionality and/or the functionality of other
networ ked components or saf ety-re leva nt
sy stems.
This can endanger theve hicle's operating
saf ety. #
You must not tamp er with wiring, elec‐
tronic components, or their software. #
Alw ays ha vewo rkon electrical and
electronic devices car ried out at a quali‐
fi ed specialist workshop. If
yo u modify the on-board electronics, thege n‐
eral operating pe rmit is rende red in valid.
Obser vethe "On-board electronics" section in
"Technical data". &
WARNING Risk offire due toflammable
materials on hot parts of theex haust
sy stem
Flammable material such as lea ves, grass or
twigs may ignite if they come into contact
wi th hot parts of theex haust sy stem. #
When driving on unpa vedro ads or off-
ro ad, regular lych eck theve hicle under‐
side. #
Remo vetrapped plants or other flam‐
mable material, in particular. Gene
ral no tes 23

Re
stra int sy stem Pr
otection pr ovided bythere stra int sy stem The
restra int sy stem includes thefo llowing com‐
ponents:
R Seat belt sy stem
R Airbags
R Child restra int sy stem
R Child seat securing sy stems
The restra int sy stem can help pr eventtheve hi‐
cle occupants from coming into contact with
parts of theve hicle interior in theev ent of an
accident. In theev ent of an accident, the
re stra int sy stem can also reduce thefo rc es to
which theve hicle occupants are subjected.
A seat belt can only pr ovide the best le vel of pro‐
te ction if it is worncor rectl y.Depending on the
de tected accident situation, seat belt tensioners
and/or airbags supplement the pr otection
of fere dby a cor rectly wornseat belt. Seat belt
te nsioners and/or airbags are not depl oyed in
eve ryaccident. In order
forth ere stra int sy stem toprov ide the
intended le vel of pr otection, each vehicle occu‐
pant must obser vethefo llowing information:
R Fasten seat belts cor rectl y.
R Sit in an almost up right seat position with
th eir back against the seat backrest.
R Sit with their feet resting on thefloor, if pos‐
sible.
R Alw ays secure persons under 1.50 m tall in
an additional restra int sy stem suitable for
Mercedes-Benz vehicles.
Ho wever,no sy stem available today can com‐
ple tely elimin ate injuries and fata lities in every
accident situation. In particular, the seat belt
and airbag generally do not pr otect against
objects penetrating theve hicle from the outside.
It is also not possible tocompl etely rule out the
ri sk of injury caused bythe airbag deploying. Re
duced restra int sy stem pr otection &
WARNING Risk of inju ryor death due to
modifications tothere stra int sy stem
Ve hicle occupants may no longer be pr otec‐
te d as intended if alterations are made tothe
re stra int sy stem. #
Never alter the parts of there stra int
sy stem. #
Neverta mp er with the wiring or any
electronic component parts or their
software. If it is necessary
tomodify theve hicle toaccom‐
modate a person with disabilities, con tact a
qu alified specialist workshop.
Mercedes-Benz recommends that you use driv‐
ing aids which ha vebeen appr ovedfo ryo ur vehi‐
cle byMercedes-Benz. Re
stra int sy stem functionality When
the ignition is switched on, a self-test is
per form ed, during which the6 restra int sys‐ Occupant saf
ety37