2014 MERCEDES-BENZ CLS ignition

Problems with fuel and the fuel tank
ProblemPossible causes/consequences andSolutions
Fuel is leaking from the
vehicle.
The fuel line or the fuel tank is faulty.
GWARNING
Risk of explosion or fire.
XTurn the SmartKey to position0in the ignition lock and remove
it immediately (Ypage 147).
XDo not restart the engine under any circumstances.
XConsultaqualified specialist workshop.
The fuel filler flap
cannot be opened.
The fuel filler flap is not unlocked.
or
The SmartKey battery is discharged.
XUnlock the vehicle using the mechanical key (Ypage 78).
XOpen the trunk lid or the tailgate.
Xopen the trunk lid.
XManuallyunlock the fuel filler flap using the emergency release
(Ypage 166).
The fuel filler flap is unlocked, but the opening mechanism is
jammed.
XConsultaqualified specialist workshop.
Parking
Important safety notes
GWARNING
If flammable materials such as leaves, grass
or twigs are exposed to prolonged contact to
parts of the exhaust system that heat up, they
could ignite. There isarisk of fire.
Park the vehicle so that no flammable
materials come into contact with parts of the
vehicle which are hot. Take particular care not
to park on dry grassland or harvested grain
fields.
GWARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect.You will require considerably
more effort to steer and brake. There isarisk
of an accident.
Do not switch off the ignition while driving.
GWARNING
If you leave children unsupervised in the
vehicle, they could set it in motion by, for
example:
Rreleasing the parking brake
Rshifting the automatic transmission out of
the parking positionP
Rstarting the engine.
They could also operate the vehicle's
equipment. There isarisk of an accident and
injury.
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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.
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Driving and parking

Parking brake
GWARNING
If you must brake the vehicle with the parking
brake, the braking distance is considerably
longer and the wheels could lock. There is an
increased danger of skidding and accidents.
Only use the parking brake to brake the
vehicle when the service brake is faulty. Do
not apply the parking brake too firmly. If the
wheels lock, release the parking brake until
the wheels begin turningagain.
GWARNING
If you leave children unsupervised in the
vehicle, they could set it in motion by, for
example:
Rreleasing the parking brake
Rshifting the automatic transmission out of
the parking positionP
Rstartingthe engine.
They could also operate the vehicle's
equipment. There isarisk of an accident and
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
If you brake the vehicle with the parking
brake, the brake lamps will not light up.
XTo apply:depress parking brakefirmly.
When the engine is running, the(USA
only) or
(Canada only) indicator lamp
lights up in the instrumentcluster.
XTo release:depressthe brakepedal and
keep it depressed.
XPull release handle.
When the ignition is switched on or the
engine is running, the(USA only) or

(Canada only) indicator lamp goes out
in the instrumentcluster.
Parking thevehicle foralong period
If you leave thevehicle parked for longer than
four weeks, thebattery may be damagedby
exhaustive discharging.
If you leave thevehicle parked for longer than
six weeks, thevehicle may suffer damage as
aresult of lack of use.
XVisitaqualifiedspecialist workshop and
seek advice.
iYou can obtain informationabout trickle
chargers fromaqualifiedspecialist
workshop.
Driving tips
General notes
Important safety notes
GWARNING
If you switch off theignitionwhile driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect.You will require considerably
more effort to steer and brake. There isarisk
of an accident.
Do not switch off the ignition while driving.
GWARNING
If you operate mobile communication
equipment while driving, you will be
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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.
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again after thevehicle has been driven a
certain distance.
AIRMATIC
Vehicle level
Important safety notes
GWARNING
When thevehicle is beinglowered, people
could become trapped if their limbs are
between thevehicle body and thewheelsor
underneaththevehicle.There isarisk of
injury.
Make sure no one is underneath the vehicle
or in the immediate vicinity of the wheel
arches when the vehicle is being lowered.
GWARNING
Vehicles with level control:
The vehicle is slightly lowered if:
Ryou have selected comfort suspension
tuning and
Ryou lock the vehicle within approximately
60 seconds of switching off the engine
You and people in the vicinity of the wheel
arch or the underbody may thus become
trapped. There isarisk of injury.
Make sure that nobody is in the vicinity of the
wheel arch or the underbody when you lock
the vehicle.
!The vehicle is lowered by about 15 mm if:
Ryou have selected "Comfort tuning"
Ryou switch off the engine and then
Ryou lock the vehicle within approximately
60 seconds
When parking, position your vehicle so that
it does not make contact with the curb as
the vehicle is lowered. Your vehicle could
otherwise be damaged.
If you lock the vehicle within 60 seconds of
switching the engine off, it lowers slightly to
the selected Comfort suspension mode.
Your vehicle regulates its height
automatically.All-round level control ensures
the best possible suspension and constant
groundclearance, even withaladen vehicle.
When you drive fast,the vehicle is lowered
automatically to improve drivingsafetyand to
reducefuel consumption.
The followingvehicle levels are possible:
Rnormal
Rraised: the vehicle is raised by about
0.80 in (20 mm) when compared with the
normal level
Rlowered: the vehicle is raised by about
0.40 in (10 mm) when compared with the
normal level
iThese changes in level are so slight that
you are hardly aware of them.
The "Normal" and "Raised" vehicle levels can
be set manually.
The "Lowered” vehicle level is set
automatically:
Rat speeds above 70 mph (113km/h)
Rif you have selected "Sports tuning"
(Ypage 190)
Setting thevehicle level
Selectthe "Normal" settingfor normal road
surfaces and "Raised" for drivingwith snow
chainsoronparticularly poor road surfaces.
Your selection remainsstored even if you
remove the SmartKey fromthe ignition lock.
Setting raised level
XStart the engine.
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If indicator lampis not lit:
XPress thebutton.
Indicator lamplights up. The vehicle
heightisadjusted to raised level.
TheVehicle Risingmessage appears in
the display.
The "Raised level" setting is canceled if you:
Rdrive ataspeed over approximately
75 mph (120 km/h)
Rdrive for approximately three minutes at a
speed over 50 mph (80 km/h)
The "Raised level" remains active when you
are not driving within these speed ranges.
Setting the normal level
XStart the engine.
If indicator lampis lit:
XPress thebutton.
Indicator lampgoes out. The vehicle is
adjusted to normal level.
Suspension tuning
General notes
The electronically controlled damping system
works continuously. This improves driving
safety and ride comfort.
The damping is tuned individually to each
wheel and depends on:
Ryour driving style, e.g. sporty
Rthe road surface condition, e.g. bumps
Ryour individualselection, i.e. sports or
comfort
Your selection remains stored even if you
remove the SmartKey from the ignition lock.
Sports tuning
The firmer suspension tuning in Sport mode
ensures even better contact with the road.
Select this mode when employingasporty
driving style, e.g. on winding country roads.
XPress button.
Indicator lamplights up. Sports
suspension tuning is selected.
TheAIRMATIC SPORTmessage appears in
the multifunction display.
Comfort tuning
In comfort mode, the driving characteristics
of your vehicle are more comfortable.
Therefore, select this mode if you favor a
more comfortable driving style. Select
comfort mode also when driving fast on
straight roads, e.g. on straight stretches of
freeway.
XPress button.
Indicator lamp$lights up. Comfort tuning
is selected.
TheAIRMATIC COMFORTmessage appears
in the multifunction display.
AMG adaptive sport suspension
system
Important safety notes
GWARNING
When the vehicle is being lowered, people
could become trapped if their limbs are
between the vehicle body and the wheels or
190Driving systems
Driving and parking

Load compensation
The vehicle can compensatedifferences in
thevehicle level by raisingorlowering the
rear axle. This is the case, for example, if
people get out or if luggage is being loaded.
Load compensation takes place if:
Radoor or the trunk lid/tailgate is opened
Rthe parked vehicle is unlocked
For larger level changes, the engine must be
running.
4MATIC (permanent four-wheel drive)
If you fail to adapt your driving style, 4MATIC
can neither reduce the risk of accident nor
override the laws of physics. 4MATIC cannot
take account of road, weather and traffic
conditions. 4MATIC is only an aid. You are
responsible for the distance to the vehicle in
front,for vehicle speed, for braking in good
time and for staying in your lane.
Ifadrive wheel spins due to insufficientgrip:
ROnly depress the accelerator pedalasfar
as necessary when pulling away.
RAccelerate less when driving.
!Never tow the vehiclewith one axle
raised. This may damage the transfer case.
Damageofthis sort is not covered by the
Mercedes-Benz Limited Warranty. All
wheels must remaineitheronthe ground
or be fully raised. Observe the instructions
for towing the vehicle with all wheels in full
contact with the ground.
iIn wintry driving conditions, the maximum
effect of 4MATIC can only be achieved if
you use winter tires(M+S tires), with snow
chains if necessary.
4MATIC ensures that allfour wheels are
permanently driven. Together with ESP®,it
improves the traction of yourvehicle
wheneveradrive wheel spins due to
insufficient grip.
PARKTRONIC
Important safetynotes
PARKTRONIC is an electronic parkingaid with
ultrasonic sensors. It indicates visually and
audibly the distancebetween your vehicle
and an object.
PARKTRONIC is only an aid. It is not a
replacementfor your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking
and exitingaparkingspace. When
maneuvering, parkingorpulling out of a
parkingspace, make sure that thereare no
persons, animals or objects in the area in
which you are maneuvering.
!When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars.
PARKTRONIC does not detectsuch objects
when they are in theimmediatevicinity of
thevehicle. You could damagethe vehicle
or the objects.
The sensors may not detect snow and other
objectsthat absorb ultrasonic waves.
Ultrasonic sources such as an automatic
car wash, the compressed-air brakes on a
truck orapneumatic drill could cause
PARKTRONIC to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
PARKTRONIC is activated automatically when
you:
Rswitch on the ignition
Rshift the transmission to positionD,RorN
Rrelease the parking brake
PARKTRONIC is deactivated at speeds above
11 mph (18 km/h). It is reactivated at lower
speeds.
PARKTRONIC monitors the area around your
vehicle using six sensors in the front bumper
and four sensors in the rear bumper.
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Warning displays
Warning display for the front area
Segments on the left-hand side of the
vehicle
Segments on the right-hand side of the
vehicle
$Segments showing operational readiness
The warning displays show the distance
between the sensors and the obstacle. The
warning displayfor the front area is located
on the dashboard above the center airvents.
The warning display for the rear area is
located on the headliner in the rear
compartment.
The warning display for each side of the
vehicle is divided intofive yellow and two red
segments. PARKTRONIC is operational if
yellow segments showing operational
readiness$light up.
The selected transmission position and the
direction in which the vehicle is rolling
determine which warning display is active
when the engineisrunning.
Transmission
position
Warning display
DFrontarea activated
R,Nor the vehicle
is rolling
backwards
Rear and frontareas
activated
PNo areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distancefrom the obstacle.
From the:
Rsixthsegmentonwards,youwill hearan
intermittentwarningtonefor
approximately two seconds.
Rseventhsegment onwards, you will hear a
warning tonefor approximately two
seconds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC
Indicator lamp
To deactivate/activate PARKTRONIC
If indicator lamplights up, PARKTRONIC is
deactivated. Active Parking Assist is then also
deactivated.
iPARKTRONIC is automatically activated
when you turn the SmartKey to position2
in the ignition lock.
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