2014 MERCEDES-BENZ CLA engine

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 note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
iRead the information on qualified
specialist workshops: (Ypage 25).
Important safety notes
GWARNING
If you operate information systems and
communication equipment integrated in the
vehicle while driving, you will be distracted
from traffic conditions. You could also lose
control of the vehicle. There is a risk of an
accident.
Only operate the equipment when the traffic
situationpermits.Ifyou are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the
equipment when the vehicle is stationary.
GWARNING
If the instrument cluster has failed or
malfunctioned, you may not recognize
function restrictions in systems relevant to
safety. The operating safety of your vehicle
may be impaired. There is a risk of an
accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop
immediately.
You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
The on-board computer only shows messages
or warnings from certain systems in the
multifunction display.You should therefore
make sure your vehicle is operating safely at
all times. Otherwise, a vehicle that is not
operating safely may cause an accident.
For an overview, see the instrument panel
illustration (Ypage 29).
Displays and operation
Instrument cluster lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle
interior can be adjusted using the brightness
control knob.
The brightness control knob is located on the
bottom left of the instrument cluster
(Ypage 29).
XTurn the brightness control knob clockwise
or counter-clockwise.
If the light switch is set to,or
, the brightness is dependent upon
the brightness of the ambient light.
iThe light sensor in the instrument cluster
automatically controls the brightness of
the multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated.
Coolant temperature display
GWARNING
Opening the hood when the engine is
overheated or when there is a fire in the
engine compartment could expose you to hot
gases or other service products. There is a
risk of injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
!Adisplay message is shown if the coolant
temperature is too high.
194Displays and operation
On-board computer and displays

If the coolant temperature is over
248 ‡(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolant temperature gauge is in the
instrument cluster on the right-hand side.
Under normal operating conditions and with
the specified coolant level, the coolant
temperature may rise to 248 ‡(120 †).
Tachometer
!Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached.
Outside temperature display
You should pay special attention to road
conditions when temperatures are around
freezing point.
The outside temperature display is in the
multifunction display.
Changes in the outside temperature are
displayed after a short delay.
Speedometer with segments
The speedometer is divided into segments on
vehicles with DISTRONIC PLUS.
The segments in the speedometer indicate
which speed range is available.
RCruise control activated (Ypage 162):
The segments lightup from the stored
speed to the maximum speed.
RDISTRONIC PLUS activated (Ypage 164):
One or two segments in the set speed
range light up.
RDISTRONIC PLUS detectsavehicle in front:
The segments between the speed of the
vehicle in frontand the stored speed light
up.
Operating the on-board computer
Overview
Multifunctiondisplay
Switches on the Voice Control System;
see the separate operating instructions
"Right control panel
!Left control panel
Back button
XTo activatethe on-board computer:turn
the SmartKey to position1in the ignition
lock.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steering
wheel.
Displays and operation195
On-board computer and displays
Z

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 (Ypage 66).
For further information about ESP®, see
(Ypage 65).
XStart the engine.
XPress theorbutton on the
steering wheel to select theDriveAssist
menu.
XPress theorbutton to select
ESP.
XPress thebutton.
XTo activate/deactivate:press the
button again.
ESP®is deactivated if thewarning
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 to a malfunction.
Observe the information on warning lamps
(Ypage 244).
Observe the information on display messages
(Ypage 213).
Switching the distance warning
function on and off
XPress theorbutton on the
steering wheel to select theDriveAssist
menu.
XPress theorbutton to select
Distance Warning.
XPress thebutton.
The current selection is displayed.
XTo activate/deactivate:press the
button again.
When the distance warning function is
deactivated, the
symbol appears in
the multifunction display in the assistance
graphics display.
Further information on the distance warning
function (Ypage 62).
Activating/deactivating COLLISION
PREVENTION ASSISTPLUS
XPress theorbutton on the
steering wheel to selecttheDriveAssist
menu.
XPress theorbutton to select
Collision Prevent. Assist.
XPress thebutton.
The current selection is displayed.
XTo activate/deactivate:press the
button again.
When COLLISION PREVENTION ASSIST
PLUS is deactivated, the
symbol
appears in the multifunction display in the
assistance graphics display.
For further information about COLLISION
PREVENTION ASSIST PLUS, see (Ypage 64).
Activating/deactivating ATTENTION
ASSIST
XPress theorbutton on the
steering wheel to select theDriveAssist
menu.
XPress theorbutton to select
Attention Assist.
XPress thebutton.
The current selection is displayed.
XTo activate/deactivate:press the
button again.
When ATTENTION ASSIST is deactivated,
thesymbol appears in the
204Menus and submenus
On-board computer and displays

thesymbol in the multifunction
display are shown in orange.
XPress thebutton to save the setting.
Further information on daytime running
lamps (Ypage 105).
Switching Adaptive HighbeamAssist on/
off
This function is only available on vehicles with
the Intelligent Light System.
XPress theorbutton on the
steering wheel to select theSettings
menu.
XPress theorbutton to select the
Lightssubmenu.
XPressto confirm.
XPress theorbutton to select the
Adaptive Highbeamfunction.
If theAdaptive Highbeamfunction has
been switched on, the cone of light and the
symbol in the multifunction display
are shown in orange.
XPress thebutton to save the setting.
For further information about Adaptive
Highbeam Assist, see (Ypage 108).
Setting the brightness of the ambient
lighting
XPress theorbutton on the
steering wheel to select theSettings
menu.
XPress theorbutton to select the
Lightssubmenu.
XPressto confirm.
XPress theorbutton to select the
Amb. Light +/-function.
You will see the selected setting.
XPressto confirm.
XPress theorbutton to adjust the
brightness to any level fromDisabled
toLevel 5(bright).
XPress theorbutton to save the
setting.
Activating/deactivating surround
lighting and exterior lighting delayed
switch-off
If you have activated theSurround
Lightingfunction and the light switch is set
to, the following functions are activated
when it is dark:
Rsurround lighting:the exterior lighting
remains lit for 40 seconds after unlocking
with the key. If you start the engine, the
surround lighting is switched off and
automatic headlamp mode is activated
(Ypage 105).
Rexterior lighting delayed switch-off:the
exterior lighting remains lit for
60 seconds after the engine is switched off.
If you close all the doors and the trunklid,
the exterior lighting goes off after
15 seconds.
XPress theorbutton on the
steering wheel to selecttheSettings
menu.
XPress theorbutton to select the
Lightssubmenu.
XPressto confirm.
XPress theorbutton to select the
Surround Lightingfunction.
When theSurround Lightingfunction is
activated, the light cone and the area
around the vehicle are displayed in orange
in the multifunction display.
XPress thebutton 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.
Menus and submenus207
On-board computer and displays
Z

Convenience
Switching the fold-in mirrors with the
locking feature on/off
This function is only available on vehicles with
the memory function (Ypage 100).
When you activate theAuto. Mirror
Foldingfunction, the exterior mirrors are
folded in when the vehicle is locked.
If you unlock the vehicle and then open a
door, the exterior mirrors fold out again.
If you have switched on theAuto. Mirror
Foldingfunction and you fold in the exterior
mirrors using the buttononthe door
(Ypage 98), they will not fold out
automatically.The exterior mirrors can then
only be folded out using the button on the
door.
XPress theorbutton on the
steering wheel to select theSettings
menu.
XPress theorbutton to select the
Conveniencesubmenu.
XPressto confirm.
XPress theorbutton to select the
Auto. Mirror Foldingfunction.
If theAuto. Mirror Foldingfunction is
activated, the vehicle's exterior mirror is
displayed in orange in the multifunction
display.
XPress thebutton to save the setting.
Restoring the factory settings
XPress theorbutton on the
steering wheel to select theSettmenu.
XPress theorbutton to select the
Factory Settingsubmenu.
XPressto confirm.
TheReset All Settings?message
appears.
XPress theorbutton to select
NoorYes.
XPressto confirm the selection.
If you have selectedYes, the multifunction
display shows a confirmation message.
For safety reasons, theDaytime Running
Lights:function in theLightssubmenu is
only reset if the vehicle is stationary.
AMG menu in AMG vehicles
AMG displays
Digital speedometer
Gear indicator
"Upshift indicator
!Engine oil temperature
Coolant temperature
Transmission fluid temperature
XPressoron 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.
If the engine oil temperature is below 176 ‡
(80 †), oil temperature!is shown in blue.
Avoid driving at full engine output during this
time.
If the transmission fluid temperature is below
122 ‡ (50 †), oil temperature is shown
in blue. Avoid driving at full engine output
during this time.
Menus and submenus209
On-board computer and displays
Z

SETUP
Drive program (C/S/M)
ESP®mode (ON/OFF) or SPORT handling
mode (SPORT)
SETUP shows the drive program, the ESP®
(Electronic Stability Program) mode and the
SPORT handling mode.
XPress theorbutton on the
steering wheel to select theAMGmenu.
XPress thebutton repeatedly until
SETUP is displayed.
RACETIMER
Displaying and starting RACETIMER
The RACETIMER is only intended for use on a
closed race circuit. Do not use the function
on publicroads.
Lap
RACETIMER
You can start the RACETIMER when the
engine is running or if the SmartKey is in
position2in the ignition lock.
XPressoron the steering wheel
to select theAMGmenu.
XPress thebutton repeatedly until the
RACETIMER is shown.
XTo start:press thebutton to start the
RACETIMER.
Displaying the intermediate time
XPress theorbutton to select
Interm. Time.
XPressto confirm.
The intermediate time is displayed for five
seconds.
Starting a new lap
RACETIMER
Fastest lap time (best lap)
"Lap
XPressto confirmNew Lap.
iIt is possible to store a maximum of
sixteen laps. The 16th lap can only be
completed withFinish Lap.
Stopping the RACETIMER
XPress thebutton on the steering
wheel.
XPressto confirmYes.
The RACETIMER interrupts timing when you
stop the vehicle and turn the SmartKey to
position1in the ignition lock. If you turn the
210Menus and submenus
On-board computer and displays

SmartKey to position2or3and then press
to confirmStart, timing is continued.
Resetting the current lap
XStop the RACETIMER.
XPress theorbutton to select
Reset Lap.
XPressto reset the lap time to "0".
Deleting all laps
If you switch off the engine, the RACETIMER
is reset to "0" after 30 seconds. All laps are
deleted.
You cannotdelete individual stored laps. If
you have stopped 16 laps, the currentlap
does nothave to be reset.
XReset the currentlap.
XPressto confirmReset.
Reset Race Timer?appears in the
multifunction display.
XPress thebutton to selectYesand
press thebutton to confirm.
All laps are deleted.
Overall statistics
RACETIMER overall evaluation
Total time driven
"Average speed
!Distance covered
Maximum speed
This function is shown if you have stored at
least one lap and stopped theRACETIMER.
XPressoron 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 functionis only available if you have
stored at least two laps and have stopped the
RACETIMER.
XPressoron the steering wheel
to select theAMGmenu.
XPress thebutton repeatedly until the
lap evaluation is shown.
Each lap is shown in a separate submenu.
The fastest lap is indicated by flashing
symbol.
XPress theorbutton to select a
different lap evaluation.
Menus and submenus211
On-board computer and displays
Z

Display messagesPossible causes/consequences and
Solutions
The yellow warning lamp lights up. If you manually apply or
release the electric parkingbrake, the red(USA
only)/ (Canada only) indicator lamp flashes.
The electric parking brake is malfunctioning. It is not possible to
apply the electric parking brake manually.
XShift the transmission toP.
XVisitaqualified specialist workshop.
(USA
only) (Canada
only)
Parking Brake
Inoperative
The yellow warning lamp lights up. The red(USA
only)/ (Canada only) indicator lamp flashes for about ten
seconds after the electric parking brake has been applied or
released. It then goes out or remains lit.
The electric parking brake is malfunctioning, e.g. because of
overvoltage or undervoltage.
XRemove the cause for the overvoltage or undervoltage, e.g. by
charging the battery or restarting the engine.
XEngage or release the electric parking brake.
If it remains impossible to apply or release the electric parking
brake:
XSwitch off the ignition and turn it back on.
XEngage or release the electric parking brake.
If the electric parking brake still cannot be released:
XConsult a qualified specialist workshop.
The display message is only shown while the vehicle is in motion.
The yellow warning lamp lights up and the red(USA
only)/ (Canada only) indicator lamp flashes.
It is not possible to apply the electric parking brake manually.
XShift the transmission toP.
XVisit a qualified specialist workshop.
(USA
only) (Canada
only)
Turn On the
Ignition to
Release the
Parking Brake
The red(USA only)/ (Canada only) indicator lamp lights
up.
You attempted to release the electric parking brake while the
ignition was switched off.
XTurn the SmartKey to position1in the ignition lock.
218Display messages
On-board computer and displays