When leaving the vehicle, alwaystake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
!Always secure the vehicle correctly
against rolling away.Otherwise, the vehicle
or its drivetraincould be damaged.
To ensure that the vehicle is secured against
rolling away unintentionally:
Rthe parking brake must be applied.
Rthe transmission must be in positionPand
the SmartKey must be removed from the
ignition lock.
Ron uphill or downhill gradients, the front
wheels must be turned towards the curb.
Switching off the engine
Important safety notes
GWARNING
The automatic transmission switches to
neutral positionNwhen you switch off the
engine. The vehicle may roll away.There is a
risk of an accident.
After switching off the engine, always switch
to parking positionP.Prevent the parked
vehicle from rolling away by applying the
parking brake.
Vehicles with automatic transmission
XApply the parking brake firmly.
XAll vehicles(except AMG vehicles):shift
the transmission to positionP.
Selector lever in AMG vehicles withPbutton
XAMG vehicles:pressPbutton .
Using the SmartKey
XTurn the SmartKey to position0in the
ignition lock and remove it.
The immobilizer is activated.
iIf you turn off the engine with the
SmartKey and then remove it from the
ignition lock or openafront door, the
automatic transmission shifts toP
automatically.
Using KEYLESS-GO
XPress the Start/Stop button (Ypage 147).
The engine stops and all the indicator
lamps in the instrumentcluster go out.
iWhen the driver's door is closed, this
corresponds to key position1.When the
driver's door is open,this corresponds to
key position0:"key removed".
iIf youturnoff the engine with the Start/
Stop button, the automatic transmission
shifts toN.Ifyou then open one of the front
doors, the automatic transmission shifts to
P.
iThe engine can be turned off while the
vehicle is in motion by pressing and holding
the Start/Stop button for about three
seconds. This function operates
independently of the ECO start/stop
automatic engine switch-off function.
168Parking
Driving and parking
distracted from traffic conditions. You could
also lose control of the vehicle. There isarisk
of an accident.
Only operate this equipment when the vehicle
is stationary.
Observe the legal requirements for the
country in which you are driving.Some
jurisdictionsprohibit the driver from using a
mobile phone while drivingavehicle.
If you makeacall while driving,alwaysuse
hands-free mode. Only operate the telephone
when the traffic situation permits. If you are
unsure, pull over toasafe location and stop
before operatingthe telephone.
Bear in mind that ataspeed of only 30 mph
(approximately 50 km/h) the vehicle covers
adistanceof44ft(approximately 14 m) per
second.
Drive sensibly–save fuel
Observe the following tips to save fuel:
XThe tires should always be inflated to the
recommended tire pressure.
XRemove unnecessary loads.
XRemove roof racks whenthey are not
needed.
XWarm up the engine at low engine speeds.
XAvoid frequent acceleration or braking.
XHave all maintenancework carried out as
indicated by the service intervals in the
MaintenanceBooklet or by the service
interval display.
Fuel consumption also increases when
driving in cold weather, in stop-start traffic
and in hilly terrain.
Drinking and driving
GWARNING
Drinking and driving and/or taking drugs and
driving are very dangerous combinations.
Evenasmall amount of alcohol or drugs can
affect your reflexes, perceptions and
judgment.
The possibility ofaserious or even fatal
accident are greatly increased when you drink
or take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or
taking drugs.
Emission control
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
isarisk of fatal injury. Therefore never leave
the engine running in enclosed spaces
without sufficient ventilation.
Certain engine systems are designed to keep
the level of poisonous components in exhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with
the manufacturer's specifications. For this
reason, only have work on the engine carried
out by qualified and authorized Mercedes-
Benz technicians.
The engine settings must not be changed
under any circumstances. Furthermore, all
specific service work must be carried out at
regular intervals and in accordance with the
Mercedes-Benzservice requirements. Details
can be found in the Maintenance Booklet.
ECO display
Example: ECO display
The ECO display gives you information on how
economical your driving style is. The ECO
display assists you in achieving the optimum
170Driving tips
Driving and parking
Servicing the brakes
!If the red brake warning lamp lights up in
the instrumentcluster and you hear a
warningtonewhile the engine is running,
the brakefluid level may be too low.
Observe additional warningmessages in
the multifunction display.
The brakefluid level may be too low due to
brakepad wear or leakingbrakelines.
Have the brakesystem checked
immediately. This work should be carried
out ataqualified specialist workshop.
!Vehicles with 4MATIC:function or
performancetests may only be carried out
ona2-axle dynamometer. If you are
planning to have the vehicle tested on such
adynamometer, contactanauthorized
Mercedes-BenzCenter to obtain further
information first. Otherwise, you could
damage the drive train or the brakesystem.
!Vehicles with 4MATIC:as the ESP®
system operates automatically, the engine
and the ignition must be switched off
(SmartKey in position0or1in the ignition
lock or Start/Stop button in position0or
1)while the parking brakeisbeing tested
onabrakedynamometer.
Brakingmaneuvers triggeredautomatically
by ESP®may seriouslydamagethebrake
system.
!Vehicles with 4MATIC:as theESP®
system operatesautomatically, theengine
and theignition system must be switched
off (SmartKey in position0or1in the
ignition lockorStart/Stopbuttonin
position0or1)when:
Rtesting theparking brakeonabrake
dynamometer.
Ryou intendtohave thevehicletowed with
oneoftheaxlesraised.
Braking maneuvers triggered automatically
by ESP®may seriouslydamagethebrake
system.
All checksand maintenance work on the
brakesystem must be carried out at a
qualified specialist workshop. Consult a
qualified specialist workshoptoarrangethis.
Havebrakepads installed and brakefluid
replacedataqualified specialist workshop.
If thebrakesystem has only been subject to
moderateloads,you should test the
functionalityofyour brakes at regular
intervals. To do so, press firmly on thebrake
pedal when driving atahigh speed. This
improvesthegripofthebrakepads.
You can findadescription of Brake Assist
(BAS) on (Ypage 67)orofBASPLUSon
(Ypage 67).
The braking characteristics of thevehiclecan
be seriouslyimpaired if:
Rbrakepads other than those recommended
are installed
Rtherecommended brakefluid is notused
Safe braking can no longer be guaranteed.
AMG high-performance and ceramic
brakes
The high-performance brake system is
installed only on the CLS 63 AMG.
The AMG brake systems are designed for
heavy loads. This may lead to noise when
braking. This will depend on:
RSpeed
RBraking force
REnvironmental conditions, such as
temperature and humidity
The wear of individualcomponentsofthe
brake system, such as the brake pads/linings
or brake discs, depends on the individual
driving style and operating conditions.
For this reason, it is impossibletostate a
mileage that will be valid under all
circumstances. An aggressive driving style
will lead to high wear. You can obtain further
information aboutthis from your authorized
Mercedes-BenzCenter.
Driving tips173
Driving and parking
Z
vehicles and the right lane on right-hand
drive vehicles.
Vehicles with COMAND
Example:traffic circle
iThe following function is not operational
in all countries.
DISTRONIC PLUS usesadditionalinformation
from yournavigation system so that it can
react appropriately to certain traffic
situations. This is the case if, while following
avehicle, DISTRONIC PLUS is active and you:
Rapproach or drive throughatraffic circle
RapproachaT-intersection
Rturn off atahighwayexit
Even if the vehicleinfront leaves the
detection range, DISTRONIC PLUS
temporarily maintains the current driving
speedand does not accelerate. This is based
on the current map data in the navigation
system.
Afterwards, the vehicleaccelerates back to
the speedyou set.
Stopping
GWARNING
Never get out of the vehiclewhen DISTRONIC
PLUS is activated.
DISTRONIC PLUS must alsonever be
operated, activated or deactivated by a
passenger or from outside the vehicle.
DISTRONIC PLUS does not replace the
parking brake and must not be used for
parking.
The DISTRONIC PLUS braking effect is
canceled and the vehiclecan start moving if:
RDISTRONIC PLUS is deactivated using the
cruise control lever.
Ryou accelerate.
Rthere isamalfunction in the system or an
interruption in the power supply,e.g.
battery failure.
Rthe electricalsystem in the engine
compartment, the battery or the fuses are
tamperedwith.
Rthe battery is disconnected.
If you wishtoleave the vehicleorpark it,
deactivate DISTRONIC PLUS and secure the
vehicleagainst rolling away.
If DISTRONIC PLUS detects that the vehicle
in front is stopping, it brakes yourvehicle until
it is stationary.
Onceyour vehicle is stationary, it remains
stationary and you do not need to depress the
brake.
iDepending on the specified minimum
distance, your vehicle will come to a
standstill atasufficientdistancebehindthe
vehicle in front.The specified minimum
distance is set using the control on the
cruise control lever.
When DISTRONIC PLUS is activated, the
transmission is shifted automatically to
positionPif:
Rthe driver's door is open and the driver's
seat belt is unfastened.
Rthe engine is switched off, unless it is
automatically switched off by the ECO
start/stop function.
Rthe hood is opened.
Rasystem malfunction occurs.
Rthe power supply is not sufficient.
182Driving systems
Driving and parking
Important safety notes
GWARNING
When leaving thevehicle, it can still rollaway
despitebeingbraked by theHOLD function if:
Rthere isamalfunction in the system or in
the voltage supply.
Rthe HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal,e.g. byavehicle occupant.
Rthe electrical system in the engine
compartment,the battery or the fuses have
been tampered with.
Rthe battery is disconnected
There isarisk of an accident.
If you wish to exit the vehicle, always turn off
the HOLD function and secure the vehicle
against rolling away.
!If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes
automaticallyincertain situations. To
prevent damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or other similarsituations:
Rwhen towingthe vehicle
Rin the car wash
Activation conditions
You can activatethe HOLDfunction if:
Rthe vehicle is stationary
Rthe engine is running or if it has been
automatically switched off by the ECO
start/stop function
Rthe driver's door is closed or your seat belt
is fastened
Rthe parking brakeisreleased
Rthe hood is closed
Rthe transmission is in positionD,RorN
RDISTRONIC PLUS is deactivated
Activating theHOLD function
XMake sure that the activation conditions
are met.
XDepress the brakepedal.
XQuickly depressthe brakepedal further
until appears in the multifunction
display.
The HOLDfunction is activated. You can
release the brakepedal.
iIf depressing the brakepedal the first
timedoes not activatethe HOLDfunction,
wait briefly and thentry again.
Deactivatingthe HOLD function
The HOLD function is deactivated
automatically if:
Ryou accelerate and the transmission is in
positionDorR.
Ryou shift the transmission to positionP.
Ryou depress the brake pedalagain with a
certain amount of pressure until
disappears from the multifunction display.
Ryou activate DISTRONIC PLUS.
When the HOLD function is activated,the
transmission is shifted automatically to
positionPif:
Rthe driver's door is open and the driver's
seat beltisunfastened.
Rthe engine is switched off, unless it is
automaticallyswitched off by the ECO
start/stop function.
Rthe hood is opened.
Rasystem malfunction occurs.
Rthe power supplyisnot sufficient.
Driving systems187
Driving and parking
Z
RACESTART
Important safety notes
iObserve the safety notes for the SPORT
handling mode(Ypage 70).
RACESTART is intended solely for activation
on dedicated race circuits.
RACE START enables optimal acceleration
fromastandingstart.The precondition for
this isasuitable high-grip road surface.
iRACE START is only available in AMG
vehicles.
Conditions for activation
You can activateRACE START if:
Rthe doors are closed.
Rthe engine is runningand it has reached an
operating temperature of approximately
176‡(80 †). This is the case when the
engine oil temperature in the multifunction
display stops flashing.
RSPORT handling mode is activated.
(Ypage 70)
Rthe steeringwheel is in the straight-ahead
position
Rthe vehicle is stationary and the brake
pedal is depressed (left foot).
Rthe transmission is in positionD.
Activating RACE START
XDepress the brake pedal with your left foot
and keep it depressed.
XTurn the drive program selector clockwise
(Ypage 159) until theRSlamp lights up.
TheRACE START Confirm: Paddle UP
Cancel: Paddle DOWNmessage appears
in the multifunction display.
iIf the activation conditions are no longer
fulfilled, RACE START is canceled. The
START Canceledmessage appears in the
multifunction display.
XTo cancel: pull the left steeringwheel
paddle shifter (Ypage 160).
or
XTo confirm: pull the right steeringwheel
paddle shifter (Ypage 160).
TheRACE START Available Depress
gas pedalmessage appears in the
multifunction display.
iIf you do not depress the accelerator
pedal fully within two seconds, RACE
START is canceled. TheRACE START Not
Possible See Operator's Manual
message appears in the multifunction
display.
XFully depress the accelerator pedal.
The engine speed rises to approximately
3,500 rpm.
TheRACE START Release brake to
startmessage appears in the
multifunction display.
iIf you do not release the brake pedal
within five seconds, RACE START is
canceled. TheRACE START Canceled
message appears in the multifunction
display.
XTake your foot off the brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum
acceleration.
TheRACESTARTActivemessage appears
in the multifunction display.
RACE START is deactivated when the vehicle
reachesaspeed of approximately 30 mph
(Canada: 50 km/h).Drive programS+is
activated. SPORT handling mode remains
activated.
RACE START is deactivated immediately if
you release the accelerator pedal during
RACE START or if any of the activation
conditions are no longer fulfilled. TheRACE
START Not Possible See Operator's
Manualmessage appears in the multifunction
display.
iIf RACE START is used repeatedly within
ashort period of time, it is only available
188Driving systems
Driving and parking
status indicator in the instrument cluster.
Whenaparking space has been detected, an
arrow towards the right or the left also
appears. By default, Active Parking Assist
only displays parking spaces on the front-
passenger side. Parking spaces on the
driver's side are displayed as soon as the turn
signal on the driver's side is activated. When
parking on the driver's side, this must remain
switched on until you acknowledge the use of
Active Parking Assist by pressing the
button on the multifunction steering wheel.
iTake note that Active Parking Assist
cannot measure the size of parking spaces
that are at right angles to the direction of
travel. You must decide for yourself
whether the vehicle will fit in the parking
space.
Aparking spaceisdisplayed while you are
driving past it, and until you are
approximately 50 ft (15 m) away from it.
Parking
GWARNING
ActiveParking Assist merely aids you by
intervening activelyinthesteering.Ifyou do
notbrakethere isariskofanaccident.
Always apply thebrakes yourself when
maneuveringand parking.
XStop thevehicle when theparking space
symbol shows thedesired parking spacein
theinstrumentcluster.
XShift thetransmission to positionR.
TheStart ParkAssist?Yes:OKNo:
message appearsinthemultifunction
display.
XTo cancel theprocedure:pressthe
buttononthemultifunction steering
wheel or pull away.
or
XTo park usingActiveParking Assist:
pressthe buttononthe multifunction
steering wheel.
ThePark Assist Active Accelerate
and Brake Observe Surroundings
message appears in the multifunction
display.
XLet go of the multifunction steering wheel.
XBack up the vehicle, being ready to brake
at all times. When backing up, drive at a
speed below approximately6mph
(10 km/h). Otherwise Active ParkingAssist
will be canceled.
iIn tight parkingspaces, you will achieve
the best parkingresults by backingupas
far as possible. When doing so, also
observe the PARKTRONICmessages.
XStop as soon as PARKTRONICsounds the
continuous warning tone, if not before.
Maneuveringmay be required in tight
parkingspaces.
ThePark Assist Active Select D
ObserveSurroundingsmessage appears in
the multifunction display.
XShift the transmission to positionDwhile
the vehicle is stationary.
Active ParkingAssist immediately steersin
the other direction.
ThePark Assist Active Accelerate
and Brake ObserveSurroundings
message appears in the multifunction
display.
iYou will achieve the best results by
waiting for the steering procedure to
completebefore pulling away.
XDriveforwards and be ready to brake at all
times.
XStop as soon as PARKTRONICsounds the
continuous warning tone, if not before.
198Driving systems
Driving and parking