2014 MERCEDES-BENZ CLS-Class engine

Starting the engine
Important safety notes G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shift the automatic transmission out of
parking position P.
R startingt he 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. G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is ar isk of fatal injury. Therefore never leave
the engine running in enclosed spaces
without sufficient ventilation. G
WARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or
parts of the engine that heat up. There is arisk
of fire.
Carry out regular checkstom ake sure that
there are no flammable foreign materials in
the engine compartmen torinthe exhaust
system.
! Do not depress the accelerator pedal
when startingt he engine. General notes i
The catalytic converter is preheated for
up to 30 seconds after acold start. The
sound of the engine may change during this
time.
Automatic transmission X
Shift the transmission to position P.
The transmission position display in the
multifunction display shows P.
i You can also start the engine when the
transmission is in position N.
Starting procedurew ith the SmartKey i
To start the engine using the SmartKey
instead of KEYLESS-GO, pull the Start/
Stop button out of the ignition lock.
X Turn the SmartKey to position 3in the
ignition lock (Y page 147) and release it as
soon as the engine is running.
Using KEYLESS-GO to startt he engine i
The Start/Stop button can be use dto
start the vehicle manually without inserting
the SmartKey into the ignition lock. The
Start/Stop button must be inserted in the
ignition lock and the SmartKey must be in
the vehicle. This mode for starting the
engine operates independently of the ECO
start/stop automatic engine start function.
X Depress the brake pedal and keep it
depressed.
X Press the Start/Stop button once
(Y pag e147).
The engine starts. Driving
149Driving and parking Z

Pulling away
Automatic transmission G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor
R,t he vehicle could pull away suddenly. There
is ar isk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do
not simultaneously accelerate.
! Ifaw arning tone sounds and the
Release Park. Brake message appears
in the multifunction display,t he parking
brake is still applied. Release the parking
brake.
X Depress the brake pedal and keep it
depressed.
X Shift the transmission to position Dor R.
X Release the parking brake (Y page 169).
X Release the brake pedal.
X Carefullyd epress the accelerator pedal.
i It is only possible to shift the transmission
from position Pto the desired position if
you depress the brake pedal. Only then is
the parking lock released. If you do not
depress the brake pedal, you can move the
DIRECT SELECT lever but the parking lock
remains engaged.
i The vehicle locks centrally once you have
pulleda way.The 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 (Y page 232).
i Upshifts take place at higher engine
speeds after acold start. This helps the
catalytic converter to reach its operating
temperature more quickly. Hill starta
ssist G
WARNING
After ashort time, hill start assist will no
longer brake your vehicle and it could roll
away. There is arisk of an accident and injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill start assist helps you when pulling away
forwards or in reverse on an uphill gradient.
It holds the vehicle for ashort time after you
have removed your foot from the brake pedal.
This gives you enough time to move your foot
from the brake pedal to the accelerator pedal
and to depress it before the vehicle begins to
roll.
X Take your foot off the brake pedal.
The vehicle is then held for about asecond.
X Pull away.
Hill start assist will not function if:
R you are pulling away on alevel road or on
ad ownhill gradient.
R the transmission is in position N.
R the parking brake is applied.
R ESP ®
is malfunctioning. ECO start/stop function
Introduction The ECO start/stop function switches the
engine off automatically if the vehicle is
stopped under certain conditions.
The engine start
sautomatically 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. 150
DrivingDriving and parking

Important safety notes
G
WARNING
If th eengineiss witched off automatically and
you exit th evehicle, th eengine is restarted
automatically. The vehicl emay begi nmoving.
There is arisk of accident and injury.
If you wish to exit the vehicle, alwayst urn off
the ignition and secure the vehicle against
rolling away.
General notes 001A
ECO start/stop display
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 152) or a
malfunction has caused the system to be
deactivated, the 000Csymbol is not
displayed.
AMG vehicles: theStop/Start active or
Stop/Start inactive message in the AMG
menu in the multifunction display goes out.
AMG vehicles: the ECO start/stop function
is only available in drive program C.
For further information on automatic engine
switch-off (Y page 151) and automatic
engine start (Y page 152). Automatic engine switch-off General notes
If the vehicle is braked to
astandstill in Dor
N,t he ECO start/stop function switches off
the engine automatically.
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
comfor trange.
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 detect sthat 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 conditions for automatic engine switch-off
have not been fulfilled, the 000Csymbol will
be shown in yellow.
AMG vehicles: the AMG menu in the
multifunction display also shows the Stop/ Start inactive message.
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.
i All of the vehicle's systems remain active
when the engine has been stopped
automatically.
i All vehicles (apartf rom AMG
vehicles): automatic engine switch-off can
take place amaximum of four times
consecutively (initial stop then repeated
three times). The 000Csymbol is shown in
yellow in the multifunction display after the
engine has been started automatically for Driving
151Driving and parking Z

the fourth time. When the
000Csymbo lis
shown in green in the multifunctio ndisplay,
automatic engine switch-off is again
possible.
i AMG vehicles: times which the engine
can be automatically switched off.
i The HOL Dfunction can also be activated
if the engine has been switched off
automatically. It is the nnot necessary to
continue applying the brakes durin gthe
automatic stop phase. When you depress
the accelerator pedal, the engine starts
automatically and the braking effect of the
HOL Dfunction is deactivated.
Automatic engine start The engine start
sautomatically if:
R you switc hoff the ECO start/stop function
by pressing the ECO button.
R you release the brakes when in
transmission position Dor Nand when the
HOL Dfunction is not active.
R you depres sthe accelerator pedal.
R you engage reverse gear R.
R you mov ethe transmission out of position
P.
R you switc htodrive program S,S+ orM
(AMG vehicles).
R you unfasten your seat belt or open the
driver's door.
R the vehicle start storoll.
R the brak esystem require sthis.
R the temperature in the vehicle interior
deviates fro mthe set range.
R the system detectsm oisture on the
windshield when the air-conditioning
system is switched on.
R the charge level of the battery is too low.
i Shiftingt he 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 (except AMG vehicles):
press button 001A.
Indicator lamp 0010and the 000Csymbol in
the multifunction displaygoo ut.
X To switch on (except AMG vehicles):
press button 001A.
Indicator lamp 0010lights up. If all conditions
for automatic engine switch-off
(Y page 151) are fulfilled,t he000C symbol
is shown in green in the multifunction
display.
If not all conditionsf or automatic engine
switch-off (Y page 151) are fulfilled,t he
000C symbol is shown in yellow in the
multifunction display. If this is the case, the
ECO start/stop function is not available.
X To switch off (AMG vehicles): press
button 001Ain drive program C.
or
X Switch to drive program S,S+ orM
(Y page 159).
Indicator lamp 0010and the 000Csymbol in
the multifunction displaygoo ut.
The Stop/Start active or
Stop/Start inactive message in the AMG menu in the
multifunction displayg oes out.152
DrivingDriving and parking

X
To switc hon(AMG vehicles): press
button 001A.
Indicator lamp 0010lights up. If drive
program S,S+ orMis active, the automatic
transmission switches to drive program C.
If all conditions for automatic engine
switch-off (Y page 151) are fulfilled, the
000C symbol is shown in green in the
multifunction display. In addition, the
Stop/Start active message is shown in
the AMG menu in the multifunction display.
If conditions for automatic engine switch-
off (Y page 151) have not been fulfilled, the
000C symbol will be shown in yellow. If this
is the case, the ECO start/stop function is
not available. In addition, the Stop/Startinactive message is shown in the AMG
menu in the multifunction display.
i If indicator lamp 0010is off, the ECO start/
stop function has been deactivated
manually or as the result of amalfunction.
The engin ewill then not be switched off
automatically when the vehicle stops. Driving
153Driving and parking Z

Problems with the engine
Problem Possible causes/consequences and
000B Solutions
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.
X Before attempting to start the engine again, turn the SmartKey
in the ignition back to position 0or 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 149). Avoid excessively
long and frequent attempt stostart the engine as these will drain
the battery.
If the engine does not start after several attempts:
X Consult aqualified 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-star tthe vehicle (Y page 326).
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 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 aqualified specialist workshop. The engine is not
running smoothly and
is misfiring. There is
amalfunction in the engine electronics or in amechanical
componentoft he engine management system.
X Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at aqualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it. The coolant
temperature gauge
shows
avalue 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 308). Observe the warning
notes as you do so and add coolant if necessary. 154
DrivingDriving and parking

Automati
ctransmission Important safety notes
G
WARNING
If th eengines pee disa bovethe idlin gspeed
and you engage transmission position Dor
R,t hevehicl ecould pull away suddenly. There
is ar iskofana ccident.
When engagin gtransmission position Dor R,
always firmly depress th ebrak epedal and do
no tsimultaneously accelerate. G
WARNING
The automatic transmission switches to
neutral position Nwhen you switc hoff the
engine. The vehicle may roll away. There is a
risk of an accident.
After switching off the engine, always switch
to parking position P.Prevent the parked
vehicle fro mrolling away by applying the
parking brake. Selector lever
Overview of transmission positions Selector lever in AMG vehicles with
Pbutton
0008 Park position with parking lock
000A Reverse gear
0006 Neutral
0007 Drive Transmission position and drive
program display !
If the transmission position display in the
multifunction display is not working, you
should pull away carefully to check whether
the desired transmission position is
engaged. Ideally ,you should select
transmission position Dand drive program
C.Don ot restric tthe shift range. 001A
Transmission position display
0010 Drive program display
The current position of the selector lever is
shown by the indicators next to 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. DIRECT SELECTl
ever
Overview of transmission positions 0008
Park position with parking lock
000A Reverse gear
0006 Neutral
0007 Drive Automatic transmission
155Driving and parking Z

The DIRECT SELECT lever is on the right of the
steerin gcolumn.
i The DIRECT SELECT lever alway sreturns
to its original position. The current
transmission position P,R, Nor Dappears
in the transmission position display
(Y page 155) in the multifunction display.
Transmission position and drive
program display !
If the transmission position display in the
multifunction display is not working, you
should pull away carefully to check whether
the desired transmission position is
engaged. Ideally, you should select
transmission position Dand drive program
E or S.Don ot restrict the shift range. 001A
Transmission position display
0010 Drive program display
The curren ttransmission position and drive
progra mappear in the multifunction display.
i The arrows in the transmission position
display show how and int owhich
transmission position syou can change
using the DIRECT SELECT lever.
Engaging par kposition P !
If th eengine speed is to ohigh or the
vehicle is moving, do not shift the
automatic transmission directly from Dto
R,f rom Rto Dor directly to P.The
automatic transmission could otherwise be
damaged. 0008
Park position with parking lock
000A Reverse gear
0006 Neutral
0007 Drive
X Push the DIRECT SELECT lever in the
direction of arrow P.
i The automatic transmission shifts into
park position Pautomatically:
R if you open the driver's door while the
vehicle is stationary in transmission
position Dor R
R if you open the door while traveling at
very low speeds in transmission position
D or R
HOLD function or DISTRONIC PLUS: if the
vehicle is braked using the HOLD function or
DISTRONIC PLUS, the automatic
transmission shifts automatically to
transmission position P.Inaddition ,atleast
one of the following condition smust be
fulfilled:
R the engin eisswitched off.
R the driver' sdoor is open and the seat belt
is not in the buckle. 156
Automatic transmissionDriving and parking