2017 MERCEDES-BENZ C-Class COUPE engine

Deactivating/activating ESP®
XTo activate SPORT handling mode:briefly
press butto n:.
The M SPORT handlin gmodew arnin g
lamp in th einstrument cluster lights up. The
SPORT handling mod e
message appears in
th em ultifunction display.
XTo deactivate SPORT handling mode:
briefl ypress butto n:.
The M SPORT handlin gmodew arnin g
lamp in th einstrument cluster goe sout.
XTo deactivate ESP®:press butto n: until
th eå ESP®OF Fw arnin glamp lights up in
th ei nstrument cluster.
The ÷ OFF
message appears in th emulti-
function display.
XTo activate ESP®: briefl ypress butto n:.
The å ESP®OF Fw arnin glamp in th e
instrumen tcluster goe sout.T he ÷ ON
message appears in th emultifunction display.
Characteristics of activate dSPORT han-
dling mode
If SPORT handlin gmodeisa ctivated and on eor
mor ewheels start to spin ,the ÷ ESP®warn -
in gl amp in th einstrument cluster flashes .ESP®
only stabilizes th evehicl etoal imiteddegree .
Whe nSPORT handlin gmodeisa ctivated:
RESP®only improves drivin gstabilit ytoa limi-
te dd egree .
RTraction control is still activated.
REnginetorque is no longer limite dand th e
drive wheels are able to spin .
The spinning of th ewheels result sinacutting
action fo rbette rtraction on loos esurfaces.
RESP®still provides support when you brak e
firmly.
Characteristics when ESP®is deactivate d
If ESP®is deactivated and on eormorew heels
start to spin ,the ÷ ESP®warnin glamp in th e
instrumen tcluster doe snotflash. In suc hsitua-
tions, ES P
®will notstabiliz ethe vehicle.
If you deactivat eESP®:
RESP®no longer improves drivin gstability.
REngin etorque is no longer limite dand th e
drive wheels are able to spin .
The spinning of th ewheels result sinacutting
action fo rbette rtraction on loos esurfaces.
RTraction control is still activated.
RCOLLISION PREVENTION ASSIST is no longer
available; no risitactivated if you brak efirmly
wit ha ssistanc efromE SP
®.
RPRE-SAF E®is no longer available, no risit
activated if you brak efirmly and ES P®inter-
venes.
RPRE-SAF E®Brake is no longer available, it is
also no tactivated if you brak efirmly and ES P®
intervenes.
RESP®still provides support when you brak e
firmly.
ESP®trailer stabilization
General information
ES P®trailer stabilization is no tavailable in
Mercedes-AMG vehicles.
If your vehicle/trailer combination begin sto
swerve, ES P
®assistsyou in this situation .ESP®
slows th evehicl edown by brakin gand limiting
th ee ngineo utput until th evehicle/trailer com-
bination has stabilized.
Important safet ynotes
GWARNIN G
If roa dand weather condition sare poor,
trailer stabilization will no tbeable to preven t
th ev ehicle/trailer combination from swerv-
ing. Trailer swithah ighc enter of gravit ycan
ti po verb efore ES P
®can detec tthis. There is
ar iskofana ccident.
Always adapt your drivin gstyle to th eprevail -
in gr oada nd weather conditions.
If your vehicl ewitht railer (vehicle/trailer com-
bination )begin stol urch, you can only stabiliz e
Driving safetysystems69
Safety
Z

Function
XTo activate/deactivate:activateordeacti-
vat eP RE-SAF E®Brake in th eon-bo ard com-
puter (Ypage 212).
If th ePRE-SAF E®Brake is no tactivated, th e
æ symbol appear sinthemultifunction dis-
play.
Starting at aspee dofa round4m ph (7 km/h),
this function warn syou if you rapidly approac ha
vehicl einfront.Ani ntermittent warning tone
will then soun dand th e· distanc ewarning
lamp will ligh tupintheinstrumen tcluster.
XBrake immediately to defuse th esituation .
or
XTak eevasive action provide ditissafetod o
so.
PRE-SAF E
®Brake can also brak ethe vehicl e
automatically under th efollowin gconditi ons:
Rthed river and front-passenger have their seat
belt sfastene d
and
Rth ev ehicl espee disb etween approximately
4m ph (7 km/h) and 12 4mph (20 0km/ h)
At speeds of up to approximately 44 mph
(70 km/h) PRE-SAF E
®Brake can also detect :
Rstationary objectsinthepat hofy our vehicle,
e.g. stoppe dorparked vehicles
Rpedestrian sinthepat hofy our vehicl e
iIf there is an increased ris kofacollision ,
preventive passenger protection measures
(PRE-SAF E
®)are triggered (Ypage 55).
If th eriskofc ollision wit hthe vehicl einfront
remain sand you do no tbrak e, ta
k eevasive
action or accelerate significantly, th evehicl e
may perfor mautomatic emergenc ybraking ,up
to th epointoff ull brak eapplication .Automatic
emergenc ybraking is no tperformed until imme-
diately prio rtoanimminent accident.
You can preven tthe intervention of th ePRE-
SAFE
®Brake at any time by:
Rdepressing th eaccelerato rpedal further.
Ractivating kickdown .
Rreleasingthe brak epedal. The braking action of PRE-SAF
E
®Brake is ended
automatically if:
Ryou maneuve rtoavoidthe obstacle .
Rthere is no longer ariskofc ollision .
Rthere is no longer an obstacle detected in
frontofy our vehicle.
STEER CONTROL
General information
STEE RCONTROL help syou by transmitting a
noticeable steering force to th esteering whee l
in th edirection require dfor vehicl estabilization .
This steering assistanc eisprovide dinparticular
if:
Rbot hright wheels or bot hleftw heels are on a
wet or slippery road surface when you brake.
Rth ev ehicl estartstos kid.
Important safety notes
iObserv ethe "Importan tsafet ynotes "sec-
tion (Ypage 61).
No steering support is provide dfromS TEER
CONTROL, if:
RES P®is deactivated
RESP®is malfunctioning .
Rthel ighting is faulty.
If ES P®is malfunctioning ,you will be assisted
further by th eelectrical power steering .
Protection against theft
Immobilizer
The immobilizerprevents your vehicl efrom
bein gstarted without th ecorre ct SmartKey.
XTo activate with th eSmartK ey:remove th e
SmartKey from th eignition lock.
XTo activate with KEYLESS-GO start-func-
tio norK EYLESS-GO: switch theignition off
and open th edriver' sdoor .
XTo deactivate: switch on theignition .
When leaving th evehicle, always tak ethe
SmartKey wit hyou and loc kthe vehicle. Anyon e
can start th eengineifav alid SmartKey has been
lef tinside th evehicle.
72Protection against theft
Safety

iThe immobilizer is alwaysdeactivated when
you start the engine.
In the event that the engine cannot be started
(yet the vehicle's battery is charged), the sys-
tem is not operational. Contact an authorized
Mercedes-Benz Center or call
1-800-FOR-MERCedes (in the USA)o r
1-800-387-0100 (in Canada).
ATA (anti-theft alarms ystem)
XTo arm:lock the vehicle with the SmartKey or
KEYLESS-GO.
Indicator lamp :flashes. The alarm system
is armed after approximately ten seconds.
XTo deactivate: unlock the vehicle with the
SmartKey or KEYLESS-GO.
or
XInsert the SmartKey into the ignition lock.
Av isual and audiblea larm is triggered if the
alarm system is armed and you open:
Rad oor
Rthe vehicle with the mechanical key
Rthe trunk lid
Rthe hood
XTo deactivatet he alarm with the Smart-
Key: press the %or& button on the
SmartKey.
The alarm is switched off.
or
XVehicles with KEYLESS-GO start-function
or KEYLESS-GO: remove the Start/Stop but-
ton from the ignition lock (
Ypage 131).
XInsert the SmartKey into the ignition lock.
The alarm is switched off.
XTo stop the alarm using KEYLESS-GO:
grasp the outside door handle. The SmartKey
must be outside the vehicle.
The alarm is switched off.
or
XPress the Start/Stop button on the dash-
board. The SmartKey must be inside the vehi- cle.
The alarm is switched off.
The alarm is not switched off, even if you close
the open door that triggered it, for example.
iIf the alarm continues for more than
30 seconds, the mbrace emergencyc all sys-
tem automatically notifies the Customer
Assistance Center. This is done either by text message or data connection.
The emergencyc all system sends amessage
or establishes adata connection provided
that:
Ryou have subscribed to the mbrace service.
Rthe mbrace service has been activated
properly.
Rthe necessary mobile phone network is
available.
Protection against theft73
Safety
Z

SmartKey
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.
GWARNING
If you attach heavy or large object stothe
SmartKey, the SmartKey could be uninten-
tionally turned in the ignition lock. This could
cause the engine to be switched off. There is a risk of an accident.
Do not attach any heavy or large object stothe
SmartKey. Remove any bulky key rings before
insertingt he SmartKey into the ignition lock.
!Keep the SmartKey away from stron gmag-
netic fields. Otherwise, the remote control
function could be affected.
Strong magnetic fields can occur in the vicin-
ity of powerful electrical installations.
Do not keep the SmartKey:
Rwith electronic devices, e.g. amobile phone
or another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. ametal case.
This can affect the functionality of the Smart- Key. Vehicles with KEYLESS-GO startf
unction:do
not keep the SmartKey on the parcel shelf or in
the trunk.O therwise, the SmartKey may not be
detected, e.g. when startin gthe engine using
the Start/Stop button.
Ac heck which periodically establishes aradio
connection between the vehicle and the Smart-
Key determines whether avalid SmartKey is in
the vehicle. This occurs, for example:
Rwhen startin gthe engine
Rwhile driving
Rwhen the external door handles are touched
Rduring convenience closing
SmartKey functions
:& To lock the vehicle
;FTo open/close the trunk lid
=%To unlock the vehicle
XTo unlock centrally: press the%button.
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
Rthe vehicle is locked again.
Ranti-theft protection is reactivated.
XTo lock centrally: press the&button.
The SmartKey centrally locks and unlocks the
following components:
Rthe doors
Rthe trunk lid
Rthe fuel filler flap
The turn signals flash once when unlocking and
three times when locking.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated via the
multimedia system (see the Digital Operator's
Manual).
74SmartKey
Opening and closing

You will receive visual and acoustic locking con-
firmation if all components were able to be
locked.
When the locator lighting is activatedvia the
multimedia system, it lightsupw hen it is dark
afte rthe vehicle is unlocked with the SmartKey
(see the Digital Operator's Manual).
XTo open th etrunk lid automaticall yfrom
outside th evehicle: press and hold the F
button until the trunk lid opens.
XTo open th etrunk lid automaticall yfrom
outside th evehicle: if the SmartKey is loca-
ted in the immediatev icinity of the vehicle,
press the Fbutton on the SmartKey.
When the trunk lid close syou can then
release the button.
KEYLESS-GO
Genera lnotes
Bear in mind that the engin ecan be started by
any of the vehicle occupant sifthere is aSmart-
Key in the vehicle (
Ypage 133).
Locking/unlocking centrally
You can start, lock or unloc kthe vehicle using
KEYLESS-GO. To do this ,you only need carr ythe
SmartKey with you. You can combine the func-
tion sofK EYLESS-GO with those of aconven-
tional SmartKey. Unlock the vehicle by using
KEYLESS-GO, for instance, and lock it using the
& button on the SmartKey.
The driver's door and the door at which the han-
dle is used, must both be closed. The SmartKey
must be outsid ethe vehicle. When locking or
unlockin gwith KEYLESS-GO, the distance
betwee nthe SmartKey and the corresponding
door handle must not be greater than 3ft(1m ).
Ab rief radio connection betwee nthe vehicle
and the SmartKey determine swhether avalid
SmartKey is in, or in the directv icinity of, the
vehicle. This occurs, for example:
Rwhen startin gthe engine
Rwhile driving
Rwhen using HANDS-FREE ACCESS
Rwhen the external door handles are touched
Rduring convenienc eclosing
XTo unlock th evehicle: touchthe inner sur-
face of the door handle.
XTo lock th evehicle: touchsensor surface :
or ;.
Make sure that you do not touc hthe inner
surfaceoft he door handle.
XConvenience closing feature: touch
recessed sensor surface ;for an extended
period.
Further information on the convenienc eclos-
ing feature (
Ypage 88).
Deactivating and activating
If you do not intend to use aSmartKey for an
extended period of time, you can deactivate the
KEYLESS-GO function of the SmartKey. The
SmartKey will the nuse very little power, thereby
conserving battery power. For the purposes of
activation/deactivation, the vehicle must not be
nearby.
XTo deactivate: press the&button on the
SmartKey twic einrapid succession.
The battery chec klamp (
Ypage 77) of the
SmartKey flashes twic ebriefly and lightsu p
once, the nKEYLESS-GO is deactivated.
XTo activate: press any button on the Smart-
Key.
or
XInsert the SmartKey int othe ignition lock.
KEYLESS-GO and all of its associated features
are available again.
SmartKey75
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

iYou can activate and deactivate the auto-
matic locking mechanism via the multimedia
syste m(see the Digital Operator's Manual).
Unlocking/locking th edriver' sdoor
using th emechanical key
i
If you want to centrally lock the vehicle using
the mechanical key, begin by pressing the
locking button for the interior locking mech-
anism while the driver's door is open. Then
lock the driver's door using the mechanical
key.
XInsert the mechanical key int oopening :in
the protective cap.
XPull and hold the door handle.
XPull the protective cap on the mechanical key
as straight as possible away from the vehicle
until it releases.
XRelease the door handle.
XTo unlock: turn the mechanical key counter-
clockwise as far as it will go to position 1.
XTo lock:turn the mechanical key clockwise as
far as it will go to position 1.
If you use the mechanical key to unloc kand
open the driver's door, the anti-theft alarm sys- tem will be triggered.S
witch off the alarm
(
Ypage 73).
Trunk
Important safetyn otes
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbo nmonoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open when the engin eisrunning,
especially if the vehicle is in motion. There is a
risk of poisoning.
Always switc hoff the engin ebeforeo pening
the trunk lid. Never drive with the trunk lid
open.
GWARNING
If objects, luggage or loads are not secured or
not secured sufficiently, the ycould slip, tip
over or be flung around and thereby hit vehicle
occupants. There is arisk of injury, particu-
larly in the eventofs udden braking orasud-
den change in direction.
Always store object ssothat the ycannot be
flung around .Secure objects, luggage or
loads against slipping or tippin gbeforet he
journey.
!The trunk lid swings upwards when opened.
Therefore, make sure that there is sufficient
clearance above the trunk lid.
The openin gdimensionsoft he trunk lid can be
foundint he "Vehicle data" section
(
Ypage 349).
You can limit the openin gangle of the trunk lid in
the multimedia syste m(see the Digital Opera-
tor's Manual).
Do not leave the SmartKey in the trunk .You
could otherwise lock yourself out.
You should preferably place luggage or loads in
the trunk .Observe the loading guidelines
(
Ypage 268).
82Trunk
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