2014 MERCEDES-BENZ CLS warning

GWARNING
If you deactivate ESP®,ESP®no longer
stabilizes the vehicle. There is an increased
risk of skidding and an accident.
Only deactivate ESP®in the situations
described in the following.
It may be best to deactivate ESP®in the
following situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
Activating/deactivating ESP®on AMG
vehicles (Ypage70).
For further information about ESP®,see
(Ypage68).
XStart the engine.
XPress the\norbutton on the
steering wheeltoselect theDriveAssist
menu.
XPress theorbutton to select
ESP.
XPress thebutton.
The current selection is displayed.
XTo activate/deactivate:press the
button again.
ESP®is deactivated if the warning lamp
in the instrument cluster lights up
continuously when the engine is running.
If thewarning lamp and the
warning lamp are lit continuously,ESP®is not
available due toamalfunction.
Observe the information on warning lamps
(Ypage269).
Observe the information on display messages
(Ypage238).
Activating/deactivating PRE-SAFE®
Brake
PRE-SAFE®Brake is only available in vehicles
with DISTRONIC PLUS.
XPress\noron the steering wheel
to select theDriveAssistmenu.
XPress theorbutton to select
PRE-SAFEBrake.
XPress thebutton.
The current selection is displayed.
XTo activate/deactivate:press the
button again.
When PRE-SAFE®Brake is deactivated, the
assistance graphic showsthe
symbol in
the multifunction display.
For more information on PRE-SAFE®Brake,
see (Ypage72).
Activating/deactivating ATTENTION
ASSIST
XPress\noron the steering wheel
to select theDriveAssistmenu.
XPressorto selectAttention
Assist.
XPress thebutton.
The current selection is displayed.
XTo activate/deactivate:press the
button again.
When ATTENTION ASSIST is deactivated, the

symbol and OFF appear in the
multifunction display in the assistance
display when the engine is running.
For further information about ATTENTION
ASSIST, see (Ypage203).
Activating/deactivating Blind Spot
Assist
XPress\noron the steering wheel
to select theDriveAssistmenu.
XPress theorbutton to select
Blind Spot Asst.
228Menus and submenus
On-board computer and displays

XPress thebutton.
The currentselection is displayed.
XTo activate/deactivate:press the
button again.
If theBlind Spot Assist Sensors
DeactivatedorAct. Blind Spot Asst.
Sensors Deactivatedmessage appears,
the radar sensor system is deactivated.
XSwitchonthe radar sensor system
(Ypage 232).
For further information about Blind Spot
Assist,see (Ypage 207).
For further information about Active Blind
Spot Assist,see (Ypage 211).
Activating/deactivating Lane Keeping
Assist
XPress\noron the steering wheel
to select theDriveAssistmenu.
XPress theorbutton to select
Lane Keep. Asst.
XPress thebutton.
The currentselection is displayed.
XPressto confirm.
XPress theorbutton to setOff,
StandardorAdaptive.
XPress thebutton to save the setting.
For further information about Lane Keeping
Assist,see (Ypage 209).
For further information about Active Lane
Keeping Assist,see (Ypage 214).
Maintenance menu
In theServ.menu, you have the following
options:
RCalling up display messages in message
memory (Ypage 237)
RRestarting the tire pressure loss warning
system (Ypage 342)
RCheckingthe tire pressure electronically
(Ypage 342)
RCalling up the servicedue date
(Ypage 310)
Settings menu
Introduction
In theSett.menu, you have the following
options:
RChanging the instrument cluster settings
(Ypage 229)
RChanging the light settings (Ypage 230)
RChanging the vehicle settings
(Ypage 232)
RChanging the convenience settings
(Ypage 233)
RRestoringthe factory settings
(Ypage 234)
Instrument cluster
Selecting the unit of measurement for
distance
TheDisplay Unit Speed-/Odometer:
function allows you to choose whether
certain displays appear in kilometers or miles
in the multifunction display.
Menus and submenus229
On-boar dc omputer and displays
Z

Convenience
Activating/deactivatingtheEASY-
ENTRY/EXIT feature
GWARNING
When theEASY-ENTRY/EXIT feature adjusts
thesteering wheel,you and other vehicle
occupants–particularly children–could
become trapped. There isarisk of injury.
While the EASY-ENTRY/EXIT feature is
making adjustments, make sure that no one
has any body parts in the sweep of the
steering wheel.
If somebody becomes trapped:
Rpress one of the memory function position
buttons, or
Rmove the switch for steering wheel
adjustmentinthe opposite direction to that
in which the steering wheel is moving.
The adjustment process is stopped.
XPress the\norbutton on the
steering wheel to select theSettings
menu.
XPress theorbutton to select the
Conveniencesubmenu.
XPressto confirm.
XPress theorbutton to select the
Easy Entry/Exit:function.
If theEasy Entry/Exitfunction is
activated, the vehicle steering wheel is
displayed in red in the multifunction
display.
XPress thebutton to save the setting.
Further information on the EASY-ENTRY/EXIT
feature (Ypage 108).
Switching the belt adjustment on/off
XPress the\norbutton on the
steering wheel to select theSett.menu.
XPress theorbutton to select the
Conveniencesubmenu.
XPressto confirm.
XPress theorbutton to select the
Belt Adjustmentfunction.
When theBelt Adjustmentfunction is
activated, the vehicle seat belt is displayed
in red in the multifunction display.
XPress thebutton to save the setting.
For further information on belt adjustment,
see (Ypage 57).
Switching the fold-in mirrors with the
locking featureon/off
This function is only available on vehicles with
the memory function (Ypage 112).
When you activate theAuto. Mirror
Foldingfunction, the exterior mirrors are
folded in when the vehicle is locked. If you
unlock the vehicle and then openadoor, the
exterior mirrors fold out again.
XPress the\norbutton on the
steering wheel to select theSett.menu.
XPress theorbutton to select the
Conveniencesubmenu.
XPressto confirm.
XPressorto select theAuto.
Mirror Foldingfunction.
If theAuto. Mirror Foldingfunction is
activated, the vehicle's exterior mirror is
displayed in red in the multifunction
display.
XPress thebutton to save the setting.
To fold the exterior mirrors in or out
If you have switched on theAuto. Mirror
Foldingfunction and you fold in the exterior
mirrors by pressing button,the exterior
Menus and submenus233
On-board computer and displays
Z

Display messages
Introduction
General notes
Display messagesappear in themultifunction display.
Display messageswithgraphic displays may be shown in simplified forminthe Operator's
Manual and may differ from the messages shown in the multifunction display.
Please respond in accordance with the displaymessages and follow the additional notes in
this Operator's Manual.
Certain displaymessages are accompanied by an audible warning tone oracontinuous tone.
When the ignition is switched off, all displaymessages are deleted, apart from some high-
priority displaymessages. Once the causes of the high-priority displaymessages have been
rectified, the corresponding displaymessages are also deleted.
When you stop and park the vehicle, please observe the notes on:
RHOLD function (Ypage 186)
RParking (Ypage 167)
Hiding display messages
XPress theorbutton on the steering wheel to hide the displaymessage.
The displaymessage is cleared.
The multifunction displayshows high-priority displaymessages in red. Some high-priority
displaymessages cannot be hidden.
The multifunction displayshows these messages continuously until the causes for the
messages have been remedied.
Message memory
The on-board computer saves certain displaymessages in themessage memory.You can
call up the display messages:
XPress the\norbutton on the steeringwheel to select theServ.menu.
If there are display messages, the multifunction display shows2Messages,for example.
XPress theorbutton to select the entry, e.g.2Messages.
XPressto confirm.
XPress theorbutton to scroll through the display messages.
Display messages237
On-board computer and displays
Z

Safety systems
Display messagesPossible causes/consequences andSolutions

Currently
Unavailable See
Operator's Manual
ABS (Anti-lock Braking System), ESP®(Electronic Stability
Program), BAS (Brake Assist), PRE-SAFE®,the HOLD function and
hill start assist are temporarily unavailable.
BAS PLUS and PRE-SAFE®Brake may also have failed.
In addition, the, andwarning lamps light up in
the instrumentcluster.
ATTENTIONASSIST is deactivated.
Possible causes are:
Rself-diagnosis is not yet complete.
Rthe on-board voltage may be insufficient.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XCarefully driveasuitable distance, making slight steering
movements, ataspeed above 12 mph (20 km/h).
If the displaymessage disappears, the functions mentioned
above are available again.
If the displaymessage continues to be displayed:
XDrive on carefully.
XVisitaqualified specialist workshop.

Inoperative See
Operator's Manual
ABS,ESP®,BAS,PRE-SAFE®,the HOLD function and hill start
assist are unavailable due toamalfunction.
The(USA only)/
(Canada only),, and
warning lamps in the instrumentcluster also light up.
ATTENTION ASSISTisdeactivated.
GWARNING
The brakesystem continues to function normally, but without the
functionslisted above. The wheels could therefore lock if you
brakehard, for example.
238Display messages
On-board computer and displays

Display messagesPossible causes/consequences andSolutions
The steerabilityand brakingcharacteristics may be severely
affected. The brakingdistanceinanemergencybrakingsituation
can increase.
If ESP®is notoperational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skiddingand an accident.
XDriveoncarefully.
XVisitaqualified specialist workshop immediately.

Inoperative See
Operator's Manual
ESP®,BAS, PRE-SAFE®,the HOLD functionand hill start assist are
unavailable duetoamalfunction.
In addition, theand warning lamps light up in the
instrument cluster.
The self-diagnosisfunctionmight not be complete,for example.
ATTENTION ASSISTisdeactivated.
GWARNING
The brakesystem continues to function normally, but without the
functionslisted above.
The braking distanceinanemergency braking situation can thus
increase.
If ESP®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XCarefully driveasuitable distance, making slight steering
movements,ataspeed above 12 mph (20 km/h).
If the display message disappears,the functionsmentioned
above are available again.
If the display message continues to be displayed:
XDrive on carefully.
XVisitaqualified specialist workshop.
Display messages239
On-board computer and displays
Z

Display messagesPossible causes/consequences andSolutions


Inoperative See
Operator'sManual
EBD(electronic brakeforcedistribution), ABS, ESP®,BAS,PRE-
SAFE®,theHOLD function and hill start assist are unavailable due
toamalfunction.
BASPLUSand PRE-SAFE®Brake may also havefailed.
In addition,the, andwarninglampslightupin
the instrument cluster andawarning tonesounds.
GWARNING
The brake system continues to function normally, but without the
functionslisted above. The frontand rearwheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XDrive on carefully.
XVisitaqualified specialist workshop immediately.
(USA
only)
(Canada
only)
Release Parking
Brake
You are driving with the parking brake applied.Awarning tone also
sounds.
XRelease theparking brake.
(USA
only)
(Canada
only)
Check Brake Fluid
Level
Thereisnot enough brake fluid in the brake fluid reservoir.
In addition, the(USA only)/
(Canada only) warning
lamp lights up in the instrument cluster andawarning tone
sounds.
GWARNING
The braking effect maybeimpaired.
There isariskofanaccident.
XPull overand stop the vehiclesafelyassoonaspossible,paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
XSecure the vehicle against rolling away(Ypage 167).
XConsultaqualified specialist workshop.
XDo not add brake fluid. This does not correct the malfunction.
240Display messages
On-board computer and displays

Display messagesPossible causes/consequences andSolutions

Check Brake Pad
Wear
The brakepads/liningshavereached their wear limit.
XVisitaqualified specialist workshop.

mbrace Inoperative
Oneormoremain features of thembrace system are
malfunctioning.
XHavethembrace system checkedimmediately ataqualified
specialist workshop.
PRE-SAFE
Inoperative See
Operator'sManual
ImportantfunctionsofPRE-SAFE®have failed.All other occupant
safetysystems, e.g. air bags, remain available.
XVisitaqualified specialist workshop immediately.
PRE-SAFE
Functions
CurrentlyLimited
See Operator's
Manual
PRE-SAFE®Brake is temporarily inoperative.
Possible causes are:
Rfunction is impaired due to heavy rain or snow.
Rthe sensors in the radiator grill and the bumper are dirty.
Rthe radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stationsorother sources of electromagnetic radiation.
RAMG vehicles: ESP®is deactivated.
Rthe system is outside the operating temperature range.
Rthe on-board voltage is too low.
When the causes stated above no longer apply, the display
message disappears.
PRE-SAFE®Brake is operational again.
If the display message does not disappear:
XPull over and stop the vehicle safely as soon as possible,paying
attention to road and traffic conditions.
XSecure the vehicle against rollingaway (Ypage 167).
XClean the sensors in the radiator grill and the bumper
(Ypage 315).
XRestartthe engine.
XAMG vehicles: reactivate ESP®(Ypage 70).
PRE-SAFE
Functions Limited
See Operator's
Manual
PRE-SAFE®Brake is inoperative due toamalfunction. BAS PLUS
or the distance warning signal may also have failed.
XVisitaqualified specialist workshop.
Display messages241
On-board computer and displays
Z