2017 MERCEDES-BENZ C-Class COUPE warning light

ABS (Anti-lock Braking System)
Gene ralinform ation
ABSregulates brak epressur einsuchaw ay that
th ew heels do no tloc kw hen you brake. This
allows you to continu esteering th evehicl ewhen
braking .
The ! ABSw arning lamp in th einstrumen t
cluste rlights up when th eignition is switched
on .Itg oeso ut when th eengineisr unning.
AB Sw orks from aspee dofa bout5mph
(8 km/h), regardless of road-surface conditions.
AB Sw orks on slipper ysurfaces, eve nwhen you
only brak egently.
Import ant safety notes
iObservethe "Importan tsafet ynotes "sec-
tion (Ypage 61).
GWARNIN G
If AB Sisf aulty, th ewheels could loc kwhen
braking .The steerabilit yand braking charac -
teristics may be severely impaired. Addition -
ally, further drivin gsafet ysystems are deac -
tivated. There is an increased danger of skid-
din gand accidents .
Drive on carefully. Hav eABS checke dimme-
diately at aqualified specialis tworkshop .
When AB Sismalfunctioning ,other systems ,
includin gdrivin gsafet ysystems ,will also
become inoperative. Observ ethe information
on th eABS warning lamp (
Ypage 249) and dis-
play message swhichm ay be shown in th e
instrumen tcluste r(
Ypage 220).
Braking
XIf ABS intervenes: continuetodepress th e
brak epedal vigorously until th ebraking sit -
uation is over.
XTo make afullb rake application: depress
th eb rak epedal wit hfull force .
If AB Sintervenes when braking ,you will fee la
pulsing in th ebrak epedal .
The pulsating brak epedal can be an indication
of hazardous road conditions, and function sasa
reminder to tak eextra carew hile driving.
BAS (Brak eAssistS ystem)
Gene ralinform ation
BASo perate sinemergenc ybraking situations.
If you depress th ebrak epedal quickly, BA S
automatically boosts th ebraking force ,thu s
shortening th estopping distance.
Imp ortant safety notes
iObserv ethe "Importan tsafet ynotes "sec-
tion (Ypage 61) .
GWARNIN G
If BA Sism alfunctioning ,the braking distanc e
in an emergenc ybraking situation is
increased. There is ariskofana ccident.
In an emergenc ybraking situation ,depress
th eb rak epedal wit hfull force .ABS prevents
th ew heels from locking .
Braking
XKeepthe brak epedal firmly depressed until
th ee mergenc ybraking situation is over.
AB Sp revents th ewheels from locking .
The brakes will function as usual once you
release th ebrak epedal .BAS is deactivated.
BAS PLUS (Brak eAssistS ystem
PLUS)w ith Cross-Traffic Assist
Gene ralinform ation
BASP LUSc an help you to minimiz ethe riskofa
collision wit havehicleorap edestrian and
reduce th eeffects of suc hacollision .IfBAS
PLU Sdetects adanger of collision ,you are
assisted when braking .
iPay attention to theimportant safet ynotes
in th e"Drivin gsafet ysystems "section
(
Ypage 61) .
BA SP LUSiso nlya vailable on vehicles wit hthe
Drivin gAssistance package.
Fo rB AS PLU Stoa ssist you when driving, th e
radar sensor system and th ecamera system
mus tbeo perational.
62Driving safety systems
Safety

ESP®(Electronic Stability Program)
General notes
iObserv ethe "Important safety notes" sec-
tio n(Ypage 61).
ESP
®monitors driving stabilitya nd traction,i.e.
power transmission between th etires and the
road surface.
If ESP
®detect stha tthe vehicle is deviatin gfrom
th ed irection desired by th edriver, oneorm ore
wheels are braked to stabilizet hevehicle .The
engine output is also modified to keep th evehi-
cle on th edesired course within physical limits.
ESP
®assists th edriver when pullinga way on
wet or slippery roads. ESP®can also stabilize
th ev ehicle durin gbraking.
Important safety notes
iObserv ethe "Important safety notes" sec-
tio n(Ypage 61).
GWARNING
If ESP
®is malfunctioning, ESP®is unabl eto
stabilizet hevehicle .Additionally, further driv-
ing safety systems are deactivated. This
increases th erisk of skiddinga nd an accident.
Drive on carefully. Hav eESP
®checked at a
qualified specialist workshop.
When towing th evehicle with th erear axle
raised, observ ethe note sonE SP
®
(Ypage 311).
If the å ESP®OFFw arning lamp lightsu p
continuously, ESP®is deactivated.
If the ÷ ESP®warning lamp lightsupc ontin-
uously, ESP®is no tavailabl edue to amalfunc-
tion.
Observ ethe informatio nonwarning lamps
(
Ypage 249) and display messages whichm ay
be shown in th einstrumen tcluster
(
Ypage 220).
Only use wheels with th erecommended tire
sizes. Only then will ESP
®function properly.
Characteristics of ESP®
General information
If the ÷ ESP®warning lamp goes out before
beginnin gthe journey, ESP®is automatically
active.
If ESP
®intervenes, the ÷ESP®warning lamp
flashes in th einstrumen tcluster.
If ESP
®intervenes:
XDo no tdeactivate ESP®unde rany circum-
stances.
XOnly depress th eaccelerato rpedal as far as
necessaryw hen pullinga way.
XAdaptyour driving style to suit th eprevailing
road and weather conditions.
ECO start/stop function
The ECO start/sto pfunction switches the
engine off automaticall ywhen th evehicle stops
moving .The engine start sautomaticall ywhen
th ed river want stopull away again.E SP
®
remains in its previously selecte dstatus. Exam-
ple: if ESP®was deactivate dbefore th eengine
was switched off ,ESP®remains deactivated
when th eengine is switched on again.
Deactivating/activatin gESP®(except
Mercedes ‑AM Gvehicles)
Important safety notes
iObserv ethe "Important safety notes" sec-
tio n(Ypage 61).
You can selectb etween thefollowings tate so f
ESP
®:
RESP®is activated.
RESP®is deactivated.
GWARNING
If you deactivate ESP
®,E SP®no longer sta-
bilizes th evehicle .Thereisani ncreased risk
of skiddinga nd an accident.
Only deactivate ESP
®in th esituations descri-
bed in th efollowing.
Driving safety systems67
Safety
Z

It may be best to deactivate ESP®in the follow-
ing situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
iActivate ESP®as soon as the situations
describeda bove no longer apply. ESP®will
otherwise not be abl etostabilize the vehicle if
the vehicle starts to skid or awheel starts to
spin.
!Avoid spinning the driven wheel sfor an
extended period with ESP®deactivated. You
could otherwise damage the drivetrain.
Deactivating/activating ESP®
You can deactivate or activate ESP®via the on-
board computer (Ypage 212)
ESP®deactivated:
The å ESP®OFF warning lamp in the instru-
ment cluster lights up.
ESP
®activated:
The å ESP®OFF warning lamp in the instru-
ment cluster goes out.
Characteristic swhen ESP®is deactivated
If ESP®is deactivated and one or more wheels
start to spin, the ÷ESP®warning lamp in the
instrument cluster flashes. In such situations,
ESP
®wil lnot stabilize the vehicle.
If you deactivate ESP®:
RESP®no longer improves driving stability.
REngine torque is no longer limited and the
drive wheel sare abl etospin.
The spinning of the wheel sresults in acutting
action for better traction on loose surfaces.
RTraction control is still activated.
RCOLLISION PREVENTION ASSISTisnol onger
available; nor is it activated if you brake firmly
with assistance from ESP
®.
RPRE-SAFE®is no longer available, nor is it
activated if you brake firmly and ESP®inter-
venes.
RPRE-SAFE®Brake is no longer available, it is
also not activated if you brake firmly and ESP®
intervenes.
RESP®still providess upport when you brake
firmly.
Deactivating/activating ESP®
(Mercedes‑AMG vehicles)
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 61).
You can select betwee nthe following states of
ESP
®:
RESP®is activated.
RSPORT handling mode is activated.
RESP®is deactivated.
GWARNING
When SPORT handling mode is activated,
there is agreater risk of skidding and acci-
dents.
Only activate SPORT handling mode in the sit-
uations describedint he following.
GWARNING
If you deactivate ESP
®,E SP®no longer sta-
bilizes the vehicle.T here is an increased risk
of skidding and an accident.
Only deactivate ESP
®in the situations descri-
bed in the following.
!Avoid spinning the driven wheelsf or an
extended period with ESP®deactivated. You
could otherwise damage the drivetrain.
In the following situations, it may be better to
activate SPORT handling mode or deactivate
ESP
®:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
Ron specially designated roads when the vehi-
cle's own oversteering and understeering
characteristics are desired
Driving in SPORT handling mode or without
ESP
®requires an extremely qualifieda nd expe-
rienced driver.
iActivate ESP®as soon as the situations
describeda bove no longer apply. ESP®will
otherwise not be abl etostabilize the vehicle if
the vehicle starts to skid or awheel starts to
spin.
68Driving safety systems
Safety

SmartKey battery
Important safety notes
GWARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is arisk of fatal
injury.
Keep batteries out of the reach of children. If
ab attery is swallowed, seek medical attention
immediately.
HEnvironmental note
Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately and recycled to protect the
environment.
Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to aqualified spe-
cialist workshop or aspecial
collection point for used bat-
teries.
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. National guide-
lines must be observed during disposal. In Cal-
ifornia, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/index.cfm .
Mercedes-Benz recommends that you have the
batteries replaced at aqualified specialist work-
shop.
Checking the battery
XPress the &or% button.
The battery is working properly if battery
check lamp :lights up briefly.
The battery is discharged if battery check
lamp :does not light up briefly.
XChange the battery (Ypage 77).
If the SmartKey battery is checked within the
signal reception range of the vehicle, pressing
the & or% button:
Rlocks or
Runlocks the vehicle
iYou can get abattery at any qualified spe-
cialist workshop.
Replacing the battery
You require aCR20253Vc ell battery.
XTake the mechanical key out of the SmartKey
(Ypage 76).
XPress mechanical key ;into the SmartKey
opening in the direction of the arrow until bat-
tery compartmentc over:opens. Do not
hold battery compartmentc over:closed
while doing so.
XRemove battery compartmentc over:.
SmartKey77
Opening and closing
Z

ProblemPossible causes/consequences andMSolutions
The engine cannot be
started using the Smart-
Key.The on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary (Ypage 307).
or
XJump-start the vehicle (Ypage 308).
or
XConsult aqualified specialist workshop.
The engine cannot be
started using the Start/
Stop button. The Smart-
Key is in the vehicle.The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 77) and replace it if necessary
(Ypage 77).
If this does not work:
XStart your vehicle with the SmartKey in the ignition lock.
There is interference from apowerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
You have lost aSmart-
Key.XHave the SmartKey deactivated at aqualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
Doors
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is arisk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
80Doors
Opening and closing

Obstacle detection with reversing
feature for the trunk lid
Vehicles with trunk lid remoteclosing fea-
ture:
The trun klid is equipped with automatic obsta-
cle detection with areversingf eature. Ifasolid
objec tblocks or restrictst he trunklid when
automatically opening ,this procedure is stop-
ped. If asolid objec tblocks or restrictst he trunk
lid when automatically closing, the trun klid
opens again automatically. The automatic
obstacle detection with reversingf eature is only
an aid. It is not asubstitute for your attentive-
ness when opening and closing the trun klid.
GWARNING
The reversingf eature does not respond:
Rto soft,light and thin objects, e.g. fingers
Rover the last 1/3 in (8 mm) of the closing
movement
The reversingf eature cannot prevents ome-
one being trapped in these situation sinpar-
ticular. There is arisk of injury.
Make sure that no body parts are in close
proximit yduring the closing procedure.
If somebody becomes trapped:
Rpress the Fbutton on the SmartKey, or
Rpull or press the remoteo peratingswitch
on the driver's door or
Rpress the closing or lockin gbutton on the
trun klid
Vehicles with HANDS-FREE ACCESS:
It is also possible to stop the closing process by
performing akicking movementu nder the rear
bumper.
Opening and closing manually
Opening
XPress the Fbutton on the SmartKey.
The trun klid opens.
Closing
XPull the trun klid down using recess :and
push it closed.
XLock the vehicle if necessary with the &
button on the SmartKey or with KEYLESS-GO
(
Ypage 75).
Opening/closing automatically from
outside
Important safetyn otes
GWARNING
Parts of the body could become trapped dur-
ing automatic closing of the trun klid. More-
over, people, e.g. children,m ay be standing in
the closing area or may enter the closing area
during the closing process.T here isarisk of
injury.
Make sure that nobody is in the vicinity of the
closing area during the closing process.
Use one of the following option stostop the
closing process:
Rpress the Fbutton on the SmartKey.
Rpull or press the remoteo peratingswitch
on the driver's door.
Rpress the closing or lockin gbutton on the
trun klid.
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trun klid is open when the engin eisrunning,
Trunk83
Opening and closing
Z

trunk lidisopenw hent he engine is running,
especiall yifthe vehicl eisinmotion. There is a
ris kofp oisoning.
Alway sswitch off the engine befor eopening
the trunk lid. Never drive with the trunk lid
open.
GWARNING
The reversing featur edoesn ot respond:
Rto soft, light and thino bjects ,e.g.f ingers
Rove rthe last 1/3 in (8 mm) of the closing
movement
The reversing featur ecannot prevent some-
one being trapped in these situations in par-
ticular. There is ariskofi njury.
Make sure thatnob odyp arts ar einc lose
proximity durin gthe closing procedure.
If somebod ybecome strapped:
Rpress the Fbutton on the SmartKey, or
Rpull or press the remote operating switch
on the driver's door or
Rpress the closing or locking button on the
trunk lid
Vehicle swithH ANDS-FREE ACCESS:
It is also possibl etostop the closing proces sby
performing akicking movement under the rear
bumper.
!The trunk li dswing su pwar ds when opened.
Therefore ,makes uret hatt here is sufficient
clearance above the trunk lid.
The opening dimensions of the trunk li dcan be
found in the "Vehicl edata" section
(
Ypage 349).
Opening and closing
XTo open: pull remote operating switch :for
the trunk li duntilthe trunk li dopens.
XTo close: press and hol dremote operating
switch :for the trunk li duntilthe trunk li dis
completel yclosed.
When the vehicl eisstationary, yo ucan close the
trunk li dfromt he driver's seat. When the vehicle
is also unlocked, yo ucan also open the trunk lid
fromi nside.
Lockin gthe trunk separately
Youc an lock the trunk separately. If yo uthen
unlock the vehicl ecentrally ,the trunk remains
locked and cannot be opened.
Activating the functio ntolockt he trunk sepa-
rately:
XClose the trunk lid.
XOpen the glove box.
XPush the switch to position :.
If the vehicl eisunlocke dcentrally ,the trunk
remains locked.
iYo uc an also lock the glove box
(Ypage 269).
86Trunk
Opening and closing

Deactivating the functiontolockt he trunk sep-
arately:
XOpen the glove box.
XPush the switch to position ;.
If the vehicl eisunlocke dcentrally, the trunk
will also be unlocked.
Trunk emergenc yrelease
Youc an unlock the trunk li dfromt he insid ewith
the emergency release button.
XPress emergency release button :briefly.
The trunk li dunlocks and opens.
The trunk li dcan be unlocke dwitht he trunk lid
emergency release when the vehicl eisstation-
ar yorw hiledriving.
The trunk li demergency release does not unlock
the trunk li difthe battery is disconnecte dor
discharged.
Trunk li demergency release light:
Remergency release button :flashe sfor
30 minute safter the trunk li disopened
Remergency release button :flashe sfor
60 minute safter the trunk li disclosed
Side windows
Important safety notes
GWARNING
Whil eopening the side windows ,bod yp arts
could become trapped between the side win-
do wa nd the door frame as the side window
moves .There is ariskofi njury.
Make sure thatn obodytouche sthe side win-
do wd uringt he opening procedure. If some-
body become strapped ,release the switch or
pull the switch to close the side windo wagain .
GWARNING
Whil eclosing the side windows ,bod yp arts in
the closing area could become trapped .There
is ar iskofi njury.
When closing make sure thatnop arts of the
body ar einthe closing area .Ifsomebody
become strapped ,release the switch or press
the switch to open the side windo wagain .
Side windo wreversin gfeature
The side windows ar eequippe dwithana uto-
matic reversing feature. If asolid object blocks
or restricts asidew indo wf romt raveling
upwards durin gthe automatic closing process,
the side windo wopens agai nautomatically. Dur-
ing the manua lclosing process, the side window
onl yopens agai nautomaticall yafter the corre-
sponding switch is released. The automatic
reversing featur eisonlyana idand is no substi-
tute for your attentio nwhenc losing asidew in-
dow.
GWARNING
The reversing featur edoesn ot react:
Rto soft, light and thino bjects ,e.g.s mall fin-
gers
Rwhil eresetting
Thi sm eans thatt he reversing featur ecannot
prevent someone being trapped in these sit-
uations. There is ariskofi njury.
Make sure thatnob odyp arts ar einc lose
proximity durin gthe closing procedure. If
someone become strapped ,press the switch
to open the side windo wagain .
Opening and closin gthe side win-
dows
The switches for the side windows ar eloc ated
on the driver's door. There is also aswitch for
the front-passenge rsidew indo wont he front-
passenge rdoor.
Side windows87
Openin gand closing
Z