2014 MERCEDES-BENZ C-Class COUPE Owner's Manual

The engine starts automatically when the
driver wants to pull away again. The ECO
start/stop function thereby helps you to
reduce the fuel consumption and emissions
of your vehicle.
Important safety notes G
WARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes If the
000C symbol is shown in green in the
multifunction display, the ECO start/stop
function switches the engine off
automatically if the vehicle stops moving.
Every time you switch on the engine using the
SmartKey or the Start/Stop button, the ECO
start/stop function is activated.
If the ECO start/stop function has been
manually deactivated (Y page 136) or a
malfunction has caused the system to be
deactivated, the 000Csymbol is not
displayed.
Automatic engine switch-off General notes
The ECO start/stop function is operational
and the
000Csymbol 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 within the range
that is suitable for the system.
R the engine is at normal operating
temperature.
R the set temperature for the vehicle interior
has been reached. R
the battery is sufficiently charged.
R the system detects that the windshield is
not fogged up when the air-conditioning
system is switched on.
R the hood is closed.
R the driver's door is closed and the driver's
seat belt is fastened.
If not all conditions for automatic engine
switch-off are fulfilled, the 000Csymbol is
shown in yellow.
i All of the vehicle's systems remain active
when the engine has been stopped
automatically.
i The engine can be switched off
automatically a maximum of four times
(first stop and three subsequent stops) in
succession .The 000C symbol is shown in
yellow in the multifunction display after the
engine has been started automatically for
the fourth time. When the 000Csymbol is
shown in green in the multifunction display,
automatic engine switch-off is again
possible.
Vehicles with automatic transmission
If the vehicle is braked to a standstill in Dor
N, the ECO start/stop function switches off
the engine automatically.
i The HOLD function can be activated if the
engine has been switched off
automatically. It is then not necessary to
continue applying the brakes during the
automatic stop phase. When you depress
the accelerator pedal, the engine starts
automatically and the braking effect of the
HOLD function is deactivated.
Automatic engine start General notes
The engine starts automatically if:
R
you switch off the ECO start/stop function
by pressing the ECO button.
R you engage reverse gear R.
R the vehicle starts to roll. Driving
135Driving and parking Z

R
the brake syste mrequires this.
R the temperature in the vehicle interior
deviates from the set range.
R the system detects moisture on the
windshield when the air-conditioning
system is switched on.
R the condition of charge of the battery is too
low.
R the driver's seat belt is removed or the
driver's door is opened.
Vehicles with automatic transmission
The engine is started automatically if you:
R release the brake pedal when HOLD is not
activated and the transmission is in
position Dor N.
R depress the accelerator pedal.
R move the transmission out of position P.
i Shifting the transmission to position P
does not start the engine.
i If you shift the transmission from Rto D,
the ECO start/stop function is available
again once the 000Csymbol reappears in
green in the multifunction display.
Deactivating/activating the ECO start/
stop function ECO button
X
To switch off: press button0002.
Indicator lamp 0003on button 0002and the
000C symbol in the multifunction display go
out. X
To switch on: press button0002.
Indicator lamp 0003lights up.
If all conditions for automatic engine
switch-off (Y page 135) are fulfilled, the
000C symbol is shown in green in the
multifunction display.
If not all conditions for automatic engine
switch-off (Y page 135) are fulfilled, the
000C symbol is shown in yellow in the
multifunction display. If this is the case, the
ECO start/stop function is not available.
i If indicator lamp 0003is off, the ECO start/
stop function has been deactivated
manually or as the result of a malfunction.
The engine will then not be switched off
automatically when the vehicle stops. 136
DrivingDriving and parking

Problems with the engine
Problem Possible causes/consequences and
0001 Solutions
The engine does not
start. The starter motor
can be heard. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
X Turn the SmartKey back to position 0in the ignition lock before
attempting to start the engine again.
or
X Press the Start/Stop button repeatedly until all indicator lamps
in the instrument cluster go out.
X Try to start the engine again (Y page 133). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. 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 288).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X
Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. Driving
137Driving and parking Z

Problem Possible causes/consequences and
0001 Solutions
The engine is not
running smoothly and
is misfiring. There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it. The coolant
temperature gauge
shows a value above
248 ‡ (120 †). 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 272). Observe the warning
notes as you do so and add coolant if necessary. 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 pull away suddenly. There
is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do
not simultaneously accelerate. G
WARNING
The automatic transmission switches to
neutral position Nwhen you switch off the
engine. The vehicle may roll away.T here is a
risk of an accident.
After switching off the engine, always switch
to parking position P. Prevent the parked
vehicle from rolling away by applying the
parking brake. Selector lever
Overview of transmission positions Example: selector lever
0011
Park position with selector lever lock
000E Reverse gear
000F Neutral
0010 Drive 138
Automatic transmissionDriving and parking

Transmission position and drive
program display 0002
Transmission positio ndisplay
0003 Drive program display
The current position of the selector lever is
shown by the indicators nex tto the selector
lever.
The indicators light up when the SmartKey is
inserted into the ignition lock. The indicators
go out when the SmartKey is removed from
the ignition lock. Transmission positions
0002
Park position
Do not shift the transmission into
position P(Ypage 148) unless the
vehicle is stationary. The parking
lock should not be used as a brake
when parking. Always apply the
parking brake in addition to the
parking lock in order to secure the
vehicle.
The SmartKey can only be removed
if the transmission is in position P.
If the SmartKey is removed from
the ignition lock, the selector lever
is locked.
If the vehicle electronics are
malfunctioning, the selector lever
may be locked in position P. To
release a locked selector lever, see
"Manual override of parking lock"
(Y page 145). 0003
Reverse gear
Only shift the transmission to
R
when the vehicle is stationary. Automatic transmission
139Driving and parking Z

0001
Neutral
Do not shift the transmission to
N
while driving. The transmission
could otherwise be damaged.
No power is transmitted from the
engine to the drive wheels.
Releasing the brakes will allow you
to move the vehicle freely, e.g .to
push it or tow it.
If ESP ®
is deactivated or faulty:
only shift the transmission to
position Nif the vehicle is in danger
of skidding, e.g. on icy roads.
! Rolling in neutral Ncan damage
the drive train. 0008
Drive
The automatic transmission
changes gear automatically. All
forward gears are available.
Changing gear
The automatic transmission shifts to the
individual gears automatically when it is in
transmission position D.This automatic
gearshifting behavior is determined by:
R a shift range restriction, if selected
R the selected drive program (Y page 140)
R the position of the accelerator pedal
R the road speed Driving tips
AMG vehicles When shifting down, the double-clutch
function is active regardless of the currently
selected drive program. The double-clutch
function reduces load change reactions and
is conducive to a sporty driving style. The
sound generated by the double-clutch
function depends on the drive program
selected. Kickdown Use kickdown for maximum acceleration.
X
Depress the accelerator pedal beyond the
pressure point.
The automatic transmission shifts to a
lower gear depending on the engine speed.
X Ease off the accelerator pedal once the
desired speed is reached.
The automatic transmission shifts back up. Program selector button
General notes The program selector button allows you to
choose between different driving
characteristics.
Example: program selector button
E
Economy Comfortable, economical
driving
S
Sport Sporty driving style
M
Manual Manual gear shifting
i
For further information on the automatic
drive program, see (Y page 141).
Only change from automatic drive program
E or Sto manual drive program Mwhen the
vehicle is stationary.
X Press program selector button 0002
repeatedly until the letter for the desired
drive program appears in the multifunction
display. 140
Automatic transmissionDriving and parking

AMG vehicles
Drive progra
mselector with manual drive program C
Controlled
Efficiency Comfortable, economical
driving
S
Sport Sporty driving style
S+
SportPlus Extremely sporty driving
style
M
Manual Manual gear shifting
RS
RACE
START Optimal vehicle
acceleration from a
standstill
i
For further information on the automatic
drive program, see (Y page 141).
Only change from automatic drive program C,
S or S+ to manual drive program Mwhen the
vehicle is stationary.
X Turn drive program selector 0002until the
desired drive program appears in the
multifunction display in the speedometer.
The drive program indicato rondrive
progra mselector 0002lights up in red.
i The automatic transmission shifts to
automatic drive program Ceach time the
engine is started.
i RScannot be selected during normal
driving. For further information on RACE
START, see (Y page 167). Steering wheel paddle shifters
0002
Left-hand steering wheel paddle shifter
0003 Right-hand steering wheel paddle shifter
In the automatic drive program, you can
restrict or derestrict the shift range by using
the steering wheel paddle shifters
(Y page 142).
In the manual drive program, you can change
gear using the steering wheel paddle shifters
or the selector lever (Y page 143).
i You can only change gear with the
steering wheel paddle shifters when the
transmission is in position D. Automatic drive program
Drive program E(drive program Con MAG
vehicles) is characterized by the following:
R comfort-oriented engine and automatic
transmission settings
R optimal fuel consumption resulting from
the automatic transmission shifting up
sooner
R the vehicle pulling away more gently in
forward and reverse gears, unless the
accelerator pedal is depressed fully
R increased sensitivity. This improves driving
stability on slippery road surfaces, for
example
R the automatic transmission shifting up
sooner .This results in the vehicle being
driven at lower engine speeds and the
wheels being less likely to spin Automatic transmission
141Driving and parking Z

Drive program
S(drive programs Sand S+on
MAG vehicles) is characterized by the
following:
R sporty engine and automatic transmission
settings
R the vehicle pulling away in first gear
R the automatic transmission shifting up
later
R the fuel consumption possibl ybeing higher
as a result of the later automatic
transmission shift points Shift ranges
Introduction When the automatic transmission is in
position
D, it is possible to restrict or
derestrict the shift range (Y page 142).
The shift range selected is shown in the
multifunction display. The automatic
transmission shifts only as far as the selected
gear.
Shift range: 0007
You can use the engine's braking
effect
0009
You can use the braking effec
tof
the engine on downhill gradients
and for driving:
R on steep mountai nroads
R in mountainous terrain
R in arduous conditions 000D
To use the braking effect of the
engine on extremely steep downhill
gradients and on long downhill
stretches
Restricting the shift range
X
Press the selector lever to the left towards
D–.
or X
Pull the left-hand steerin gwheel paddle
shifter.
The automatic transmission shifts down
one gear and restricts the shift range to the
relevant gear.
i If the engine exceeds the maximum
engine speed when shifting down, the
automatic transmission protects against
engine damage by not shifting down.
i If the maximum engine speed for the shift
range is reached and you continue to
accelerate, the automatic transmission
shifts up, even if the shift range is
restricted. This prevents the engine from
overrevving.
Extending the shift range X
Briefly press the selector lever to the right
towards D+.
or
X Pull the right-hand steering wheel paddle
shifter.
The shift range is derestricted.
Clearing the shift range restriction X
Press and hold the selector lever towards
D+ until Dis shown once more in the
multifunction display.
or
X Pull and hold the right-hand steering wheel
paddle shifter until Dis shown again in the
multifunction display.
The automatic transmission shifts from the
current shift range directly to D.
Selecting the ideal shift range X
Press the selector lever to the left towards
D– and hold it in position.
or 142
Automatic transmissionDriving and parking