2015 MERCEDES-BENZ C-CLASS COUPE stop start

Starting procedureu
sing the Start/
Stop button The Start/Stop button is only available on vehi-
cles with KEYLESS-GO or the KEYLESS-GO start
function.
The Start/Stop button can be used to start the
vehicle manually without insertin gthe key into
the ignition lock. The key must be in the vehicle and the Start/Stop button must be inserted in
the ignition lock. This mode for startingt he
engine operates independently of the ECO
start/stop automatic engine start function.
You can start the engine if avalid key is in the
vehicle. Switch off the engine and always take
the key with you when leaving the vehicle, even
if you only leave it for ashort time. Pay attention
to the important safety notes.
X Depress the brake pedal and keep it
depressed.
X Press the Start/Stop button once
(Y page 145).
Vehicles with apetrol engine: the engine
starts.
Vehicles with adiesel engine: preglow is
activated and the engine starts. Pulling away
General notes G
WARNING
Vehicles with automatic transmission:
If the engine speed is above the engine idling speed and you then engage transmission
position Dor R,t he vehicle may accelerate
suddenly. There is arisk of an accident.
When engaging transmission position Dor R,
always keep the brake pedal firmly depressed
and do not depress the accelerator pedal at
the same time.
! Vehicles with manualt
ransmission:
change gear in good time and avoid spinning
the wheels. You could otherwise damage the
vehicle.
Depress the accelerator carefully when pulling
away.
The vehicle locks centrally once you have pulled
away.T he locking knobs in the doors drop down. You can open the doors from the inside at any
time.
You can also deactivate the automatic locking
feature; see the Digital Owner's Manual.
Vehicles with automatic transmission: it is
only possible to shift the transmission from posi- tion Pto the desired position if you depress the
brake pedal. If you do not depress the brake
pedal, the DIRECT SELECT lever can still be
moved but the parking lock remains engaged.
i Vehicles with automatic transmission:
upshifts take place at higher engine speeds
after acold start. This helps the catalytic con-
verter to reach its operating temperature
more quickly.
Information on automatically releasing the elec- trical parking brake (Y page 175).
Pulling away with atrailer To ensure that you do not roll backwards when
pulling away on an uphill slope, apply the electric
parking brake.
X Press and hold handle :.
The electric parking brake continues to brake
and prevent the vehicle from rolling back-
wards.
The red !indicator lamp in the instrument
cluster remains lit.
X Depress the accelerator pedal.
X As soon as the vehicle/trailer combination is
held by the driving force of the engine, release lever :.
The electric parking brake is released.
The red !indicator lamp in the instrument
cluster goes out.
For further information on the electric parking
brake, see (Y page 174).148
DrivingDriving and parking

Hill start assist
Hill start assist help
syou when pulling awa yfor-
wards or in reverse on an uphill gradient. It holds
the vehicl efor as hort time after you have
removed you rfoot from the brake pedal. This
gives you enoug htime to move yourf oot from
the brake peda ltothe accelerator peda land
depress it before the vehicl ebegins to roll. G
WARNING
After awhile, hills tart assist no longer holds
the vehicl eand it may roll away. There is arisk
of an accident and injury.
Therefore, quickly move yourf oot from the
brake peda ltothe accelerator pedal. Never
leave the vehicl ewhen it is held by hills tart
assist.
Hill start assist is not active if:
R you are pulling awayonal evelroad or a
downhill gradient
R on vehicles with automatic transmission, the
transmission is in position N
R the electric parking brake is applied
R ESP ®
is malfunctioning ECOs
tart/stop function
Introduction The ECO start/stop function switches the
engine off automatically if the vehicl eisstopped
under certain conditions.
When pulling awa yagain, the engine starts auto-
matically .The ECO start/stop function thereby
help syou to reduce the fuel consumption and
emissions of you rvehicle.
Important safety notes G
WARNING
If the engine is switched off automatically and you exit the vehicle, the engine is restarted
automatically.T he vehiclemay begi nmoving.
There is arisk of accident and injury.
If you wis htoexit the vehicle, alwayst urn off
the ignitio nand secure the vehicl eagainst
rolling away. General notes
:
ECO start/stop display
All vehicle s(except Mercedes-AMG vehi-
cles): the ECO start/stop function is activated
whenever you switch on the engine using the
key or the Start/Stop button.
If the è ECO symbol is show ningreen in the
multifunction display ,the ECO start/stop func-
tion switches the engine off automatically once the vehicl estops moving.
If the ECO start/stop function has been man-
ually deactivated (Y page151) or amalfunction
has caused the system to be deactivated, the
è ECO symbol is not displayed.
Mercedes-AMG vehicles: the ECO start/stop
function is only available in drive program C.
Mercedes-AMG vehicles: the ECO start/stop
function is activated whenever you switch on
the engine using the key or the Start/Stop but- ton. This is the case if:
R the ignitio nwas switched off for more than
four hour sor
R the ECO start/stop function had been activa-
ted before the engine was switched off
Automatic engine switch-off General notes
The ECO start/stop function is operational and
the è ECO symbol is displayed in green in the
multifunction display ,if:
R the indicator lamp in the ECO button is lit
green
R the outside temperature is withi nthe range
that is suitable for the system
R the engine is at normal operating temperature
R the set temperature for the vehicl einterior
has been reached
R the battery is sufficiently charged
R the system detects that the windscreen is not
misted up when the air-conditioning system isswitched on Driving
149Driving and parking Z

R
the bonnet is closed
R the driver's door is close dand the driver's
seat belt is fastened
If the conditions for automatic engine switch-off
ar en ot al lfulfilled ,the è ECO symbo lis
shown in yellow.
All of the vehicle' ssystems remai nactive when
the engine is switched off automatically.
Al lv eh icle s(exce pt Mercedes-AMG vehi-
cles): automatic engine switch-off can take
place amaximum of fou rtimes in arow (initial
switch-off ,the nt hre esubsequen tswitch-offs).
The è ECO symbo lisshown in yellow in the
multifunctio ndisplay after the engine ha sbeen
started automaticall yfor the fourth time. When
the è ECO symbo lisshown in green in the
multifunctio ndisplay ,automatic engine switch-
off is agai npossible.
Mercedes-AMG vehicles: the numberofcon-
secutive automatic engine stop sisunlimited.
Vehicle swithm anual transmission The ECO start/sto
pfunctio nswitches off the
engine automaticall yatlowspeeds.
X Brake the vehicle.
X Shift to neutral N(follow gearshift instruc-
tion :to shift to neutral N,ifnecessary).
X Releas ethe clutch pedal.
The engine is switched off automatically.
Vehicle switha utomatic transmission
If the vehicl eisbraked to astandstil lwitht he
transmission in Dor N,t he ECO start/sto pfun c-
tio ns witches off the engine automatically.
The HOLD functio ncan be activated if the
engine ha sbeens witched off automatically. It is
the nnot necessary to continue applying the
brakes durin gthe automatic stop phase. When
yo ud epress the accelerator pedal, the engine
starts automaticall yand the braking effect of
the HOLD functio nisd eactivated. Automati
cengin estart General notes
The engine is started automaticall yif:
R yous witch off the ECO start/sto pfun ctio nby
pressing the ECO button
R youd epress the accelerator pedal
R youe ngag erevers egear R
R youu nfasten your seat belt or open the driv-
er' sd oor
R the vehicl estarts to roll
R the brake syste mrequires this
R the temperatur einthe vehicl einterio rdevi-
ate sfromt he se tran ge
R the syste mdetects moisture on the wind-
screen when the air-conditioning syste mis
switched on
R the battery's charge status is too low
Vehicle swithm anual transmission
! Onl
yengag egearw hent he clutch peda lis
depressed.
The engine is started automaticall ywheny ou
depress the clutch pedal.
Vehicle switha utomatic transmission
The engine is started automaticall yif:
R yous witch to drive program S+(all vehicles
except Mercedes-AM Gvehicles)
R yous witch to drive program RACE
(S‑MO DEL),S+orS(Mercedes-AMG vehicles)
R youp ermanentl yactivate manua lgears hifting
(Y page 163 )(Me rcedes-AMG vehicles)
R in transmission position Dor N,t he brake
peda lisrelease dand the HOLD functio nisn ot
active
R yous hift fro mtransmission position P
Shiftin gthe transmission to position Pdoes not
start the engine.
If yo ushift the transmission from Rto D,t he
ECO start/sto pfunctio nisa vailable againonce
the è ECO symbo lreappears in green in the
multifunctio ndisplay. 150
DrivingDriving an
dparking

Switching the ECO start/stop function
off/on All vehicles (except Mercedes-AMG vehi-
cles) X
To switch off: press ECO button :.
Indicator lamp ;and the èECO symbol
in the multifunction display go out.
X To switch on: press ECO button :.
Indicator lamp ;lights up. If all conditions
for automatic engine switch-of f(Y page 149)
are fulfilled, the èECO symbol is shown in
green in the multifunction display.
If not all condition sfor automatic engine
switch-of f(Y page 149) are met, the è
ECO symbol is shown in yellow in the multi-
function display.Ift his is the case, the ECO
start/stop function is not available.
If indicator lamp ;is off, the ECO start/stop
function has been deactivated manually or as
the result of amalfunction .The engine will then
not be switched off automatically when the vehi-
cle stops.
Selectin gdrive program S+deactivates the ECO
start/stop function. If you press ECO button :,
the ECO start/stop function is activated.
Mercedes-AMG vehicles X
To switch off: press ECO button :.
Indicator lamp ;and the èECO symbol
in the multifunction display go out.
X To switch on: press ECO button :.
Indicator lamp ;lights up.
If all condition sfor automatic engine switch-
off (Y page 149) are fulfilled, the èECO
symbol is shown in green in the multifunction
display.
If not all condition sfor automatic engine
switch-of f(Ypage 149) are fulfilled, the è
ECO symbol is shown in yellow.Ift his is the
case, the ECO start/stop function is not avail- able.
If indicator lamp ;is off, the ECO start/stop
function has been deactivated manually or as
the result of amalfunction .The engine will then
not be switched off automatically when the vehi- cle stops.
The ECO start/stop function is deactivated if:
R you switch to drive program RACE
(S‑MODEL), S+orS(Y page 154)
R you permanently activate manual gearshifting
(Y page 163)
If you have permanently activated manual gear- shifting and then press ECO button :,the ECO
start/stop function is activated. AMG sportse
xhaust system
(Mercedes-AMG vehicles)
You can choose between different AMG sports
exhaust system volumes using the position of
the exhaust flap.
If the ignition is switched off for less than four
hours, the previously selected settingisa ctiva-
ted when the engine is next started. If the igni-
tion is switched off for more than four hours, the
quietest settingisa ctivated when the engine is
next started. Driving
151Driving and parking Z

Problems with the engine
Problem
Possible causes/consequences and
M
MSolutions The engine does not
start. The HOLD function or DISTRONIC PLUS is activated.
X Deactivat ethe HOLD function (Y page 192) or DISTRONIC PLUS
(Y page 184).
X Try to start the engine again (Y page 147).The engine does not
start. The starter motor
can be heard. R
There is amalfunction in the engine electronics.
R There is amalfunction in the fuel supply.
Before attempting to start the engine again:
X Turn the key back to position 0in the ignition lock.
or X Press the Start/Stop button repeatedly until all indicator lamps in
the instrumen tcluster go out.
X Try to start the engine again (Y page 147). Avoid excessively long
and frequent attemptstos tart the engine, as this will drain the
battery.
If the engine does not start after several attempts:
X Consult aqualified specialist workshop. The engine does not
start. The starter motor
can be heard. The
reserve fuel warning
lamp is lit and the fuel
gauge display is at the
reserve level. The fuel tank is empty.
X Refuel the vehicle. The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak or
discharged.
X Jump-start the vehicle (Y page 345).
If the engine does not start despite attemptstoj ump-start it:
X Consult aqualified specialist workshop. The starter motor was exposed to
athermal load that was too high.
X Try to start the engine again (Y page 147).
If the engine still does not start:
X Consult aqualified specialist workshop. Vehicles with
apetrol
engine:
The engine is not running
smoothly and is misfir-
ing. There is
amalfunction in the engine electronics or in amechanical
componen tofthe engine management system.
X Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it.
X Have the cause rectified immediately at aqualified specialist work-
shop. Driving
153Driving and parking Z

Problem
Possible causes/consequences and
M
MSolutions The coolant temperature
display is showing more
than 120 †. Adisplay
message may also
appear in the multifunc-
tion display and awarn-
ing tone may sound. The coolant level is too low. The coolant is too hot and the engine is no
longer being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 324). Observe the warning notes
as you do so and top up the coolant if necessary. If the coolant level is correct,t
he engine radiator fan may be faulty. The
coolant is too hot and the engine is no longer being cooled sufficiently.
X If the coolant temperature is below 120 †, you can continue driving
to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in moun-
tainous terrain and stop-start traffic. DYNAMIC SELECTs
witchAll vehicles(
except Mercedes-AMG
vehicles)
Use the DYNAMIC SELECT switch to change the
drive program. Depending on the drive program
selected, the following vehicle characteristics
will change:
R the drive (engine and transmission manage-
ment)
R the suspension
R the steering
R the availability of the ECO start/stop function
R the climate control
- the climate control settings
- the rear window heating operation period
- the performance of the seat heating
If the ignition is switched off for less than four
hours, the previously selected drive program is
activated when the engine is next started. If the ignition is switched off for more than four hours,
drive program Cis activated when the engine is
next started. :
DYNAMIC SELECT switch (example)
X Push DYNAMIC SELECT switch :forward or
back until the desired drive program is selec- ted.
The status icon of the selected drive program
is shown in the multifunction display.
In addition, the current drive program settings are displayed briefly in the display of the mul-
timedia system.
i In
af ew countries, the ECO start/stop func-
tion is deactivated at the factory due to the
quality of the available fuel. In this case, the
ECO start/stop function is not available in any
drive program, regardless of the display in the
multimedia system display.
Available drive programs: I
Individual Individual settings
S+
Sport Plus Particularly sporty driving
characteristics S
Sport Sporty driving characteris-
tics154
DYNAMIC SELECT switchDriving and parking

Gearshift recommendation
The gearshift recommendations assist you in
adopting an economical driving style .The rec-
ommended gear is shown in the multifunction
display.
X Shift gear according to gearshift recommen-
dation :when shown in the multifunction
display of the instrument cluster. Drive programs
Drive program I(Individual) In drive program
Ithe following properties of the
drive progra mcan be selected:
R the drive (engine and transmission manage-
ment)
R the suspension
R the steering
R the availability of the ECO start/stop function
R the climate control
Information abou tconfiguring drive program I
with the multimedia system can be found in the
Digital Owner's Manual.
Drive program S+ (Sport Plus) Drive program
S+is characterised by the fol-
lowing:
R the vehicle exhibits particularlys porty driving
characteristics.
R the suspension exhibits particularlyf irm
springing and damping settings (vehicles with
AIRMATIC).
R the ECO start/stop function is not available. Drive program
S(Sport) Drive program
Sis characterised by the follow-
ing:
R the vehicle exhibits sporty driving character-
istics.
R the suspension exhibits firm springing and
damping settings (vehicles with AIRMATIC).
Drive program C(Comfort) Drive program
Cis characterised by the follow-
ing:
R the vehicle delivers comfortable ,economical
driving characteristics.
R the vehicle having improve ddriving stability,
for exampl eonslippery road surfaces.
Drive program E(Economy) Drive program
Eis characterised by the follow-
ing:
R the vehicle exhibits comfortable ,economical
driving characteristics.
R the vehicle having improve ddriving stability,
for exampl eonslippery road surfaces.
R the performance of the air-conditioning and
heating systems is reduced. Automatic transmission
Important safety notes
G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pulla waysuddenly. There is
ar isk of an accident.
When engaging transmission position Dor R,
alwaysf irmly depress the brake pedala nd do
not simultaneously accelerate. G
WARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is arisk of an
accident. Automatic transmission
157Driving and parking
Z

After switching off the engine
,alway sswitch
to parking position P.Prevent the parked vehi-
cle from rolling away by applying the parking
brake. DIREC
TSELECT lever
Overvie woftransmission positions j
Park positio nwithp arking lock
k Reverse gear
i Neutral
h Drive
The DIRECT SELEC Tlever is on the right of the
steering column.
The DIRECT SELEC Tlever always returns to its
original position. The current transmission posi- tion P,R, Nor Dappear sinthe transmission
positio ndisplay in the multifunctio ndisplay
(Y page 159).
Engagin gpark position P !
If the engine speed is too high, do not shift
the automatic transmission directl yfrom Dto
R,f rom Rto Dor directl ytoP.Otherwise, the
automatic transmission could be damaged.
X Push the DIRECT SELEC Tlev er in the direction
of arrow P. Engagin
gpark position Pautomatically Park position
Pis automaticall yengaged if:
R yous witch off the engine using the key and
remove the key
R yous witch off the engine using the key or
using the Start/Stop button and open the
driver's door or front-passenger door
R youo pent he driver's door when the vehicl eis
stationar yorwhend riving at averyl ow speed
and the transmission is in position Dor R
Unde rcertain conditions, the automatic trans-
mission shifts automaticall ytotransmission
position Pif the HOLD functio norDISTRONIC
PLU Sisa ctivated .Observ ethe informatio non
the HOLD functio n(Ypage 193 )and on
DISTRONI CPLUS(Ypage 188).
Engagin grevers egearR !
Onl
yshift the automatic transmission to R
when the vehicl eisstationary.
X If the transmission is in position Dor N:p ush
the DIRECT SELEC Tlever up past the first
point of resistance.
X If the transmission is in position P:depress
the brake peda land push the DIRECT SELECT
lever up past the first point of resistance.
The ECO start/sto pfunctio nisn ot available
when revers egearise ngaged .Further informa-
tio nont he ECO start/sto pfunction
(Y page 149).
Shiftin gtoneutral N G
WARNING
If children ar eleftu nsupervised in the vehicle,
they can:
R open doors and endanger othe rpersons or
roa dusers
R climb ou tand be injured by the traffic
R operate vehicl eequipment and,for exam-
ple, trap themselves. 158
Automati
ctransmissionDriving an dparking