2014 MERCEDES-BENZ CLS warning lights

XTo deactivate:press buttonuntilthe
ESP®OFF warning lamp lights up in
the instrument cluster.
TheOFFmessage appearsinthe
multifunctiondisplay.
Deactivate ESP®when drivingon
designated roads when the vehicle's own
oversteeringand understeering
characteristics are desired. Drivingwithout
ESP®requiresanextremely qualified and
experienced driverwho is able to cope with
these critical driving conditions.
XTo activate:briefly press button.
The ESP®OFF warning lamp in the
instrumentcluster goes out. TheON
message appears in the multifunction
display.
ESP®is activated automatically when the
engine is started.
If ESP®is deactivated and one or morewheels
start to spin,theESP®warninglamp in
the instrumentcluster does not flash. In such
situations, ESP®will not stabilize the vehicle.
It may be best to deactivateESP®in the
followingsituations:
Rwhen using snowchains
Rin deep snow
Ron sand or gravel
If you deactivateESP®:
RESP®no longer improves drivingstability.
Rtraction control is still activated.
RPRE-SAFE®is no longer available, nor is it
activated if you brakefirmly and ESP®
intervenes.
RPRE-SAFE®Brake is no longer available, it
is also not activated if you brakefirmly and
ESP®intervenes.
RESP®still provides support when you
brake.
Rengine torque is no longer limited and the
drive wheels are able to spin.The spinning
wheels produceacuttingeffect for better
traction.
Vehicles with ECO start/stop function: the
ECO start/stop function switches the engine
off automatically when the vehicle comes to
astop. The engine starts automatically when
the driver wants to pull away again. ESP®
remains in its previously selected status. For
example, if ESP®was deactivated before the
engine was switched off, ESP®remains
deactivated when the engine is switched on
again.
EBD (electronic brake force
distribution)
iObserve the "Important safety notes"
section (Ypage 66).
GWARNING
If EBD has malfunctioned, the rear wheels can
still lock, e.g. under full braking. This
increases the risk of skidding and an accident.
You should therefore adapt your driving style
to the different handling characteristics. Have
the brake system checked ataqualified
specialist workshop.
Observe information regarding indicator and
warning lamps (Ypage 267) as well as
displaymessages (Ypage 240).
EBD monitors and controls the brake
pressure on the rear wheels to improve
driving stability while braking.
Driving safety systems71
Safety
Z

In order to maintain the appropriatedistance
to the vehicle in front and thus prevent a
collision, you must apply the brakes yourself.
Due to the nature of the system, particularly
complicated driving conditionsmay cause
unnecessarywarningsortheunnecessary
intervention of PRE-SAFE®Brake.
Followingdamagetothe front end of the
vehicle, have the configurationand operation
of the radarsensorschecked ataqualified
specialist workshop. This also applies to
collisions at low speeds where thereisno
visible damage to the frontofthe vehicle.
Function
XTo activate/deactivate:activate or
deactivate PRE-SAFE®Brake in the on-
board computer (Ypage 228).
If the PRE-SAFE®Brake is not activated, the

symbol appears in the multifunction
display.
If you approachavehicle in front very quickly,
this function warns you fromaspeed of
approximately4mph (7 km/h). An
intermittent warning tone sounds and the
distance warning signal lamp in the
instrumentcluster lightsup.
XBrake immediately to defuse the situation.
or
XTake evasiveaction provided it is safe to do
so.
Fromaspeed of approximately4mph
(7 km/h), if the driver and frontpassenger
have fastened their seat belts, PRE-SAFE®
Brakecan brake the vehicle automatically at
speeds up to approximately 124 mph
(200 km/h).
You can preventthe intervention of the PRE-
SAFE®Brakeatany time by:
Rdepressingthe accelerator pedal further.
Ractivating kickdown.
Rreleasing the brake pedal.
The brakingaction of PRE-SAFE®Brakeis
ended automatically if:
Ryou maneuver to avoid the obstacle.
Rthereisnolonger any danger ofarear-end
collision.
Rthereisnolonger an obstacle detected in
frontofyour vehicle.
If you approach an obstacle and PRE-SAFE®
Brakedetectsarisk ofacollision, the system
will alert you both visually and acoustically. If
you do not brake or takeevasive action,the
system will warn you by automatically braking
the vehicle gently. If thereisanincreased risk
of collision, preventative passenger
protection measures (PRE-SAFE®)are
activated (Ypage 54). Ifarisk of collision
remains at speeds of over 20 mph
(30 km/h) and you do not brake, takeevasive
action or significantly accelerate, automatic
brakingmay be performed up to and including
emergency braking. Automatic emergency
brakingisnot performed until immediately
prior to an accidentthat can no longer be
avoided.
Theftdeterrent locking system
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
XTo activate with the SmartKey:remove
the SmartKey from the ignition lock.
XTo activate with KEYLESS-GO:switchthe
ignition off and open the driver'sdoor.
XTo deactivate:switchonthe ignition.
When leaving the vehicle, always takethe
SmartKey with you and lock the vehicle.
Anyone can start the engineifavalid
SmartKey has been left inside the vehicle.
iThe immobilizer is always deactivated
when you start the engine.
In the event that the enginecannot be
started when the starter battery is fully
charged, the immobilizer may be faulty.
Theft deterrent locking system73
Safety
Z

SmartKey battery
Important safety notes
GWARNING
Batteries contain toxic and corrosive
substances. If batteries are swallowed, it can
result in severe health problems. There is a
risk of fatal injury.
Keep batteries out of the reach of children. If
abattery is swallowed, seek medical attention
immediately.
Mercedes-Benz recommends that you have
the batteries replaced ataqualified specialist
workshop.
Checking the battery
XPress theorbutton.
The battery is working properly if battery
check lamplights up briefly.
The battery is discharged if battery check
lampdoes not light up briefly.
XChange the battery (Ypage 79).
iIf the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing theorbutton:
Rlocks or
Runlocks the vehicle
iYou can getabattery at any qualified
specialist workshop.
Replacing the battery
You requireaCR20253Vcell battery.
XTake the mechanical key out of the
SmartKey (Ypage 78).
Battery compartmentcover
Mechanical key
XPress mechanical keyinto the opening
in the SmartKey in the direction of the
arrow until battery compartmentcover
opens. Do not hold battery compartment
coverclosed while doing so.
XRemove battery compartmentcover.
$Battery
XRepeatedly tap the SmartKey against your
palm until battery$falls out.
XInsert the new battery with the positive
terminal facing upwards. Usealint-free
cloth to do so.
XMake sure that the surface of the battery is
free of lint, grease and other contaminants.
SmartKey79
Opening and closing
Z

Position of the steering wheel for
driving
The steering wheel is moved to the last
selected position when:
Rthe driver's door is closed
Rwith KEYLESS-GO:you press the Start/
Stop button once on vehicles with
KEYLESS-GO
or
Rwith the SmartKey:you insert the
SmartKey into the ignition lock.
When you close the driver's door with the
ignition switched on, the steering wheel is
also automatically moved to the previously
set position.
The last position of the steering wheel is
stored when you switch off the ignition or
when you store the settingwith the memory
function (Ypage 112).
Crash-responsive EASY-EXIT feature
If the crash-responsiveEASY-EXITfeature is
triggeredinanaccident,the steeringcolumn
will moveupwards when the driver's door is
opened. This occurs irrespective of the
position of the SmartKey in the ignition lock.
This makes it easier to exit the vehicle and
rescue the occupants.
The crash-responsiveEASY-EXITfeature is
only operational if the EASY-EXIT/ENTRY
feature is activated in the on-board computer.
(Ypage 233)
Mirrors
Exterior mirrors
Adjusting theexterior mirrors
GWARNING
You could lose control of your vehicle if you
do the followingwhile driving:
Radjust the driver's seat,head restraint,
steeringwheel or mirrors
Rfasten the seat belt
There isarisk of an accident.
Adjust the driver's seat, head restraint,
steeringwheel and mirror and fasten your
seat belt before starting the engine.
GWARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the
distancefrom road users travelingbehind,
e.g. when changinglane. There isarisk of an
accident.
For this reason, alwaysmake sure of the
actual distancefrom the road users traveling
behind by glancingover your shoulder.
XTurn the SmartKey to position1or2in the
ignition (Ypage 147).
XPress buttonfor the left-hand exterior
mirror or buttonfor the right-hand
exterior mirror.
The indicator lamp in the corresponding
button lights up in red.
Mirrors109
Seats, steering wheel and mirrors
Z

Useful information
iThis Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please notethat your vehicle may
not be equipped with all features
described. This also applies to safety-
related systemsand functions.
iRead the information on qualified
specialist workshops: (Ypage 26).
Exterior lighting
Generalnotes
For reasonsofsafety, Mercedes-Benz
recommends that you drive with the lights
switched on even during the daytime.
Therefore, your vehicle is equipped with
special daytime running lamps. In some
countries, operation of the headlamps varies
due to legal requirements and self-imposed
obligations.
If you wish to drive during the daytime without
lights, switchoff the daytime running lamps
function in the on-board computer
(Ypage 230).
Driving abroad
Symmetrical low-beam headlamps
Switchthe headlamps to symmetrical low
beam in countries in which traffic drives on
the opposite side of the road from the country
where the vehicle is registered. This prevents
glare to oncoming traffic. When using
symmetrical lights, the edge of the road is not
lit as widely and as far ahead as normal.
Have the headlamps converted ataqualified
specialist workshop as close to the border as
possible before drivinginthesecountries.
Asymmetrical low beam
Have the headlamps converted back to
asymmetrical low-beam headlamps at a
qualified specialist workshop as soon as
possible after crossing the border again.
Setting the exterior lighting
Setting options
Exterior lightingcan be set using:
Rthe light switch
Rthe combination switch(Ypage 119)
Rthe on-board computer (Ypage 230)
Light switch
Operation

Left-handstanding lamps
\nRight-hand standing lamps
Parkinglamps, licenseplate and
instrumentclusterlighting
\rAutomatic headlamp mode,
controlled by the light sensor
Low-beam/high-beam headlamps
If you hearawarningtonewhen you leave the
vehicle, the lightsmay still be switched on.
XTurn the light switchto\r.
116Exterior lighting
Light sa nd windshield wipers

The exterior lighting (except the parking/
standinglamps) switches off automatically if
you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with the SmartKey
in position0.
Automatic headlampmode
GWARNING
When the light switch is set to\r,the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There isarisk of an
accident.
In such situations, turn the light switch to
.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times.

Left-hand standinglamps
\nRight-hand standinglamps
Parking lamps, license plate and
instrument cluster lighting
\rAutomatic headlamp mode,
controlled by the light sensor
Low-beam/high-beam headlamps
\ris the favored light switch setting. The
light setting is automatically selected
accordingtothe brightness of the ambient
light (exception: poor visibility due to weather
conditions such as fog, snow or spray):
RSmartKey in position1in the ignition lock:
the parking lamps are switched on or off
automatically depending on the brightness
of the ambient light.
RWith the engine running: if you have
activated the daytime runninglamps
function via the on-board computer,the
daytime runninglamps or the low-beam
headlamps and parking lamps are switched
on or off automatically depending on the
brightness of the ambient light.
XTo switch on automatic headlamp
mode:turn the light switch to\r.
Only for Canada:
The daytime runninglamps improve the
visibility of your vehicle during the day. The
daytime runninglamps function is required by
law in Canada. It cannot therefore be
deactivated.
When the engine is runningand the vehicle is
stationary: if you move the selector lever from
adrive position toP,the daytime running
lamps/low-beam headlamps go out after
three minutes.
When the engine is running, the vehicle is
stationary and in high ambient light: if you
turn the light switch to,the daytime
runninglamps and parking lamps switch on.
If the engine is runningand you turn the light
switch to,the manual settings take
precedenceover the daytime runninglamps.
USA only:
The daytime runninglamps improve the
visibility of your vehicle during the day. To do
this, the daytime runninglamps function must
be switched on using the on-board computer
(Ypage 230).
If the engine is runningand you turn the light
switch toor,the manual settings
Exterior lighting117
Lights and windshield wipers
Z

take precedence overthe daytime running
lamps.
Low-beam headlamps
GWARNING
When the lightswitchisset to\r,thelow-
beam headlampsmay not be switchedon
automatically if there is fog, snow or other
causes of poor visibility due to theweather
conditions such as spray. Thereisarisk of an
accident.
In such situations, turnthe light switch to
.

Left-hand standing lamps
\nRight-hand standing lamps
Parking lamps, license plate and
instrumentcluster lighting
\rAutomatic headlamp mode,
controlled by the light sensor
Low-beam/high-beam headlamps
Even if the light sensor does not detect that
it is dark,the parking lamps and low-beam
headlamps switchonwhen the ignition is
switched on and the light switchisset to the
position. This isaparticularly useful
function in the eventofrain and fog.
XTo switch on thelow-beam headlamps:
turnthe SmartKey in the ignition lock to
position2or start the engine.
XTurn the light switchto.
The greenindicator lamp in the
instrumentcluster lightsup.
Parking lamps
!If the battery has been excessively
discharged, the parking lamps or standing
lamps are automatically switched off to
enable the nextengine start. Alwayspark
your vehiclesafelyand sufficiently lit
according to legalstandards.Avoid the
continuoususe of theparking lamps
for severalhours.Ifpossible, switch on the
\nright or theleft standinglamp.

Left-hand standinglamps
\nRight-hand standinglamps
Parking lamps, license plate and
instrument cluster lighting
\rAutomatic headlamp mode,
controlled by the light sensor
Low-beam/high-beam headlamps
XTo switch on:turn the light switch to
.
The greenindicator lamp in the
instrument cluster lights up.
118Exterior lighting
Lights and windshiel dw ipers

The blueindicator lamp in the
instrument cluster lights up when the high-
beam headlamps are switched on.
XTo switch off the high-beam
headlamps:move the combination switch
back to its normal position.
The blueindicator lamp in the
instrument cluster goes out.
iVehicles with Adaptive Highbeam Assist:
when Adaptive Highbeam Assist is active,
it controls activation of the high-beam
headlamps (Ypage 121).
High-beam flasher
High-beam headlamps
Turn signal, right
$High-beam flasher
!Turn signal, left
XTo switch on:turn the SmartKey in the
ignition lock to position1or2,orstart the
engine.
XPull the combination switch in the direction
of arrow$.
Hazard warning lamps
XTo switch on the hazard warning lamps:
press button.
All turn signals flash. If you now switch on
aturn signal using the combination switch,
only the turn signal lamp on the
corresponding side of the vehicle will flash.
XTo switch off the hazard warning
lamps:press button.
The hazard warning lamps automatically
switch on if:
Ran air bag is deployed
Rthe vehicle decelerates rapidly from a
speed of more than 45 mph (70 km/h) and
comes toastandstill
The hazard warning lamps switch off
automatically if the vehicle reachesaspeed
of over6mph (10 km/h) again afterafull
brake application.
iThe hazard warning lamps still operate if
the ignition is switched off.
Headlampcleaning system
The headlamps are cleaned automatically if
the "Wipe with washer fluid" function is
operated five times (Ypage 125)while the
lightsare on and the engineisrunning. When
you switchoff the ignition, the automatic
headlamp cleaning systemisreset and
counting is resumed from 0.
120Exterior lighting
Lights and windshield wipers