engine MERCEDES-BENZ CLS 2014 Owners Manual

XPressorto select theDay
Lights:function.
If theDayLights:have been switched on,
the cone of light and thesymbol in
the multifunction display are shown in red.
XPress thebutton to save the setting.
Further information on daytime running
lamps (Ypage 117).
Setting the brightness of the ambient
lighting
XPress the\norbutton on the
steeringwheel to select theSett.menu.
XPress theorbutton to select the
Lightssubmenu.
XPressto confirm.
XPress theorbutton to select the
Amb. Light +/-.function.
You will see the selected setting.
XPressto confirm.
XPress theorbutton to adjust the
brightness to any level fromOfftoLevel
5(bright).
XPress theorbutton to save the
setting.
Setting the ambient lighting color
XPress the\norbutton on the
steeringwheel to select theSett.menu.
XPress theorbutton to select the
Lightssubmenu.
XPressto confirm.
XPress theorbutton to select the
Ambient Light Colorfunction.
XPressto confirm.
XPress theorbutton to set the
color toSOLAR,NEUTRALorPOLAR.
XPress theorbutton to save the
setting.
Activating/deactivating surround
lighting and exterior lighting delayed
switch-off
XPress the\norbutton on the
steeringwheel to select theSett.menu.
XPress theorbutton to select the
Lightssubmenu.
XPressto confirm.
XPressorto select the
Surround Lightingfunction.
When theSurround Lightingfunction is
activated, the light cone and the area
around the vehicle are displayedinred in
the multifunction display.
XPress thebutton to save the setting.
Deactivating delayed switch-off of the
exterior lighting temporarily:
XBefore leaving the vehicle, turn the
SmartKey to position0in the ignition lock.
XTurn the SmartKey to position2in the
ignition lock.
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the
engine.
If you have activated theSurround
Lightingfunction and the light switch is set
to\r,the following functions are activated
when it is dark:
RSurround lighting:the exterior lighting
remains lit for 40 seconds after unlocking
with the SmartKey. If you start the engine,
the surround lighting is switched off and
the automatic headlamp mode is activated
(Ypage 117).
RExterior lighting delayed switch-off:the
exterior lighting remains lit for 60seconds
after the engine is switched off. If you close
all the doors and the trunklid, the exterior
lighting goes off after5seconds.
iDepending on your vehicle's equipment,
when the surround lighting and delayed
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mirrors willnot fold out automatically
(Ypage110).
You can then only fold out the exterior mirrors
using button.
Restoringthe factory settings
XPress the\norbutton on the
steering wheeltoselect theSett.menu.
XPress theorbutton to select the
Factory Settingsubmenu.
XPressto confirm.
TheReset All Settings?message
appears.
XPress theorbutton to select
NoorYes.
XPressto confirm the selection.
If you have selectedYes,the multifunction
display showsaconfirmation message.
For safety reasons, theDaytime Running
Lightsfunction in theLightssubmenu is
only reset if the vehicleisstationary.
AMG menu in AMG vehicles
AMG displays
Digital speedometer
Gear indicator
$Upshift indicator
!Engine oil temperature
Coolant temperature
%ECO start/stop function status indicator
(Ypage 151)
XPress the\norbutton on the
steering wheel to select theAMGmenu.
Upshift indicatorUP$indicates that the
engine has reached the overrevving range
when in the manual gearshift program.
Upshift indicatorUP$fades out other
messages until you have shifted up.
When the engine oil temperature is below
176‡(80 †) the oil temperature is shownin
blue. Avoid drivingatfull engineoutput during
this time.
SETUP
Driveprogram (C/SS+/M)
ESP®mode (ON/OFF)orSPORT handling
mode (SPORT)
$Suspension tuning(COMFORT/SPORT/
SPORT+)
SETUP shows the drive program, the ESP®
(Electronic Stability Program) mode and the
suspension tuning.
XPress the\norbutton on the
steering wheel to select theAMGmenu.
XPress thebutton repeatedly until
SETUP is displayed.
or
XBriefly press the AMG button on the center
console (Ypage 191).
234Menus and submenus
On-boar dc omputer and displays

RACETIMER
Displaying and startingRACETIMER
Lap
RACETIMER
The RACETIMER is only intended for useona
closed race circuit. Do not usethe function
on public roads.
Youcan startthe RACETIMER when the
engine is running or if the SmartKey is in
position2in the ignition lock.
XPress\noron the steering wheel
to select theAMGmenu.
XPress thebutton repeatedlyuntilthe
RACETIMER is shown.
XTo start:press thebutton to startthe
RACETIMER.
Displaying the intermediate time
XPress the\norbutton to select
Interm. Time.
XPressto confirm.
The intermediate time is displayed for five
seconds.
Startinganewlap
RACETIMER
Fastest laptime (best lap)
$Lap
XPressto confirmNew Lap.
iIt is possible to storeamaximum of
sixteen laps. The 16th lapcan only be
completed withFinish Lap.
Stoppingthe RACETIMER
XPress thebutton on the steering
wheel.
XPressto confirmYes.
The RACETIMER interrupts timing when you
stop the vehicleand turn the SmartKey to
position1in the ignition lock. If youturn the
SmartKey to position2or3and then press
to confirmStart,timing is continued.
Resetting the current lap
XStop the RACETIMER.
XPress the\norbutton to select
ResetLap.
XPressto reset the laptime to "0".
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Deleting all laps
If you switch offthe engine, the RACETIMER
is reset to "0" after 30 seconds. All laps are
deleted.
You cannot delete individualstored laps. If
you have stopped 16 laps, the current lap
does not have to be reset.
XReset the current lap.
XPressto confirmReset.
Reset Race Timer?appears in the
multifunction display.
XPress thebutton to selectYesand
press thebutton to confirm.
All laps are deleted.
Overall statistics
RACETIMER overall evaluation
Total time driven
$Average speed
!Distancecovered
Maximum speed
This function is shown if you have stored at
least one lap and stopped the RACETIMER.
XPress the\norbutton on the
steering wheel to select theAMGmenu.
XPress thebutton repeatedly until the
overall evaluation is shown.
Lap statistics
Lap
Lap time
$Average lap speed
!Lap length
Top speed during lap
This function is only available if you have
stored at least two laps and have stopped the
RACETIMER.
XPress the\norbutton on the
steering wheel to select theAMGmenu.
XPress thebutton repeatedly until the
lap evaluation is shown.
Each lap is shown inaseparate submenu.
The fastest lap is indicated by flashing
symbol.
XPress theorbutton to select a
different lap evaluation.
236Menus and submenus
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

Display messagesPossible causes/consequences andSolutions
Adaptive Highbeam
Assist Inoperative
Adaptive Highbeam Assistisfaulty.
XVisitaqualified specialist workshop.
Adaptive Highbeam
Assist Currently
Unavailable See
Operator's Manual
Adaptive Highbeam Assist is deactivated and temporarily
inoperative. Possible causes are:
Rthe windshieldinthe camera's field of vision is dirty.
Rvisibility is impaired due to heavy rain, snow or fog.
XCleanthe windshield.
If the system detectsthat the camera is fully operational again,
theAdaptive Highbeam Assist Now Availablemessage is
displayed.
Adaptive Highbeam Assist is operational again.
Engine
Display messagesPossible causes/consequencesandSolutions

Check Coolant
Level See
Operator's Manual
The coolant level is too low.
!Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
XAdd coolant, observing the warning notes before doing so
(Ypage 308).
XIf coolant needs to be added more often than usual, have the
engine coolant system checked ataqualified specialist
workshop.
The fan motor is faulty.
XAt coolant temperatures below 248‡(120 †), drive to the
nearest qualified specialist workshop.
XAvoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic.
248Display messages
On-board computer and displays

Display messagesPossible causes/consequences andSolutions

CoolantToo Hot
StopVehicleTurn
Engine Off
The coolantistoo hot.
Awarning tone also sounds.
GWARNING
Do notdrive when yourengine is overheated. Thiscan causesome
fluids whichmay have leaked intotheenginecompartmentto
catch fire.
Steamfrom the overheated engine can alsocauseserious burns
which can occur just by opening the hood.
There isarisk of injury.
XPullover and stop the vehiclesafelyand switch off the engine,
paying attention to road and traffic conditions.
XSecure the vehicleagainst rolling away (Ypage167).
XWaituntil the engine hascooleddown.
XMake sure thatthe air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
XDo not start the engine again until the displaymessage goes out
and the coolant temperature is below 248‡(120 †).
Otherwise, the engine could be damaged.
XPay attention to the coolant temperature display.
XIf the temperature increases again, visitaqualified specialist
workshop immediately.
Under normal operating conditionsand with the specified coolant
level, the coolant temperature may rise to 248‡(120 †).
Display messages249
On-board computer and displays
Z

Display messagesPossible causes/consequences andSolutions
The battery is notbeing charged.
Awarning tone also sounds.
Possible causes are:
Radefective alternator
Ratornpoly-V-belt
Ramalfunctionintheelectronics
XPull overand stop the vehiclesafelyand switch off the engine,
paying attentiontoroadand traffic conditions.
XSecure the vehicleagainst rolling away (Ypage 167).
XOpenthe hood.
XCheck whether the poly-V-belt is torn.
If the poly-V-belt is torn:
!Do not continue driving. The engine could otherwise overheat.
XConsultaqualified specialist workshop.
If the poly-V-belt is not damaged:
XVisitaqualified specialist workshop.

Check Engine Oil
Level At Next
Refueling
The engine oil level has dropped to the minimum level.
Awarning tone also sounds.
XCheckthe oil level when next refueling, at the latest
(Ypage 307).
XIf necessary, add engine oil (Ypage 308).
XHave the engine checked ataqualified specialist workshop if
engine oil needs to be added more often than usual.
!Avoid long journeys with too little engine oil. The engine will
otherwise be damaged.
Information on approved engine oils can be obtained from any
qualified specialist workshop or on the Internet at http://
bevo.mercedes-benz.com.
250Display messages
On-board computer and displays

Display messagesPossible causes/consequences andSolutions

Check Engine Oil
Level(Add1quart)
AMGvehicles: theengineoil level is toolow.
XCheckthe oil level when next refueling, at the latest
(Ypage 307).
XIf necessary, add engine oil (Ypage 308).
XHave the engine checked ataqualified specialist workshop if
engine oil needs to be added more often than usual.
!Avoid long journeys with too little engine oil. The engine will
otherwise be damaged.
Information on approved engine oils can be obtained from any
qualified specialist workshop or on the Internet at http://
bevo.mercedes-benz.com.

Fuel Level Low
The fuel level has dropped into the reserve range.
XRefuel at the nearest gas station.
There is onlyavery small amount of fuel in the fuel tank.
XRefuel at the nearest gas station without fail.

Gas Cap Loose
The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
XCheck that the fuel filler cap is correctly closed.
If the fuel filler cap is not correctly closed:
XClose the fuel filler cap.
If the fuel filler cap is correctly closed:
XVisitaqualified specialist workshop.
Driving systems
Display messagesPossible causes/consequencesandSolutions


Attention Assist:
TakeaBreak!
Based on certain criteria, ATTENTION ASSIST has detected fatigue
oralack of concentrationonthe part of thedriver.Awarning tone
alsosounds.
XIf necessary,takeabreak.
During long journeys, take regular breaks in good time so you get
enoughrest.


AttentionAssist
Inoperative
ATTENTION ASSIST is inoperative.
XVisitaqualified specialist workshop.
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Display messagesPossible causes/consequences andSolutions
Blind SpotAssist
Currently
Unavailable See
Operator'sManual
orActive Blind
SpotAssist
Currently
Unavailable See
Operator'sManual
Blind Spot AssistorActiveBlind Spot Assististemporarily
inoperative. Possiblecauses are:
Rthesensorsare dirty.
Rfunction is impaireddue to heavyrain or snow.
Rtheradarsensor system is outside the operatingtemperature
range.
Rthe radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
The yellowindicator lamps also light up in the exterior
mirrors.
When the causes stated above no longer apply, the display
message disappears.
Blind Spot Assist or Active Blind Spot Assist 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 rolling away (Ypage 167).
XClean the sensors(Ypage 315).
XRestart the engine.
Blind Spot Assist
Inoperativeor
Active Blind Spot
Assist Inoperative
Blind Spot Assist or Active Blind Spot Assist is defective.
The yellowindicator lamps also light up in the exterior
mirrors.
XVisitaqualified specialist workshop.
Park Assist
Canceled
The driver's door is open and the driver's seat belt has not been
fastened.
XRepeat the parkingprocess with the seat belt fastened and the
driver's door closed.
You have inadvertently touched the multifunction steering wheel
while steering intervention was active.
XWhile steering intervention is active, make sure that the
multifunction steering wheel is not touched unintentionally.
The vehicle has started to skid and ESP®has intervened.
XUse Active ParkingAssist again later (Ypage 196).
254Display messages
On-boar dc omputer and displays