2019 MERCEDES-BENZ CLA Owners Manual

The engine starts automatically when the driverwants to pull away again. The ECO start/stopfunction thereby helps you to reduce the fuelconsumption and emissions of your vehicle.
Important safety notes
GWARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes
CECO start/stop display
The ECO start/stop function is activated when-ever you start the engine using the SmartKey orthe Start/Stop button.
If the engine has been switched off automati-cally by the ECO start/stop function, the

Deactivating or activating the ECO
start/stop function
XTo deactivate:press ECO buttonC.Indicator lampDgoes out.
XTo activate:press ECO buttonC.Indicator lampDlights up.
If indicator lampDis off, the ECO start/stopfunction has been deactivated manually or asthe result of a malfunction. The engine will thennot be switched off automatically when the vehi-cle stops.
AMG Performance exhaust system
(Mercedes-AMG vehicles)
You can choose between different AMG Per-formance exhaust system volumes using theposition of the exhaust flap.
Each time you start the engine with the Smart-Key or the Start/Stop button, the quietest set-ting is activated.
Setting the volume:
XPress buttonC.If you select the loudest setting, indicatorlampDlights up.
Problems with the engine
ProblemPossible causes/consequences andPPSolutions
The engine does notstart.The HOLD function or Active Distance Assist DISTRONIC is activated.
XDeactivate the HOLD function (Ypage 159) or Active DistanceAssist DISTRONIC (Ypage 156).
XTry to start the engine again.
The engine does notstart. The starter motorcan be heard.
RThere is a malfunction in the engine electronics.
RThere is a malfunction in the fuel supply.
Before attempting to start the engine again:
XTurn the SmartKey back to positionZin the ignition lock.
or
XPress the Start/Stop button repeatedly until all indicator lamps inthe instrument cluster go out.
XTry to start the engine again. Avoid excessively long and frequentattempts to start the engine as these will drain the battery.
If the engine does not start after several attempts:
XConsult a qualified specialist workshop.
128Driving
Driving and pa rking

ProblemPossible causes/consequences andPPSolutions
The engine does notstart. You cannot hearthe starter motor.
The on-board voltage is too low because the battery is too weak ordischarged.
XJump-start the vehicle (Ypage 282).
If the engine does not start despite attempts to jump-start it:
XConsult a qualified specialist workshop.
The starter motor was exposed to a thermal load that was too high.
XAllow the starter motor to cool down for approximately two minutes.
XTry to start the engine again.
If the engine still does not start:
XConsult a qualified specialist workshop.
The engine is not runningsmoothly and is misfir-ing.
There is a malfunction in the engine electronics or in a mechanicalcomponent of the engine management system.
XOnly depress the accelerator pedal slightly.Otherwise, non-combusted fuel may get into the catalytic converterand damage it.
XHave the cause rectified immediately at a qualified specialist work-shop.
The coolant temperaturegauge shows a valueabove 248 ‡ (120 †).The coolant warninglamp may also be on anda warning tone maysound.
The coolant level is too low. The coolant is too hot and the engine is nolonger being cooled sufficiently.
XStop as soon as possible and allow the engine and the coolant tocool down.
XCheck the coolant level (Ypage 263). Observe the warning notesas you do so and add coolant if necessary.
Notes on towing vehicles
The vehicle is not suitable for attaching tow barsystems, such as those used for flat towing ordinghy towing.
Attaching or using tow bar systems may result indamage to the vehicle.
When towing a vehicle with tow bar systems,safe driving characteristics cannot be guaran-teed for the towing vehicle or the towed vehicle.
The vehicle/trailer combination may swerve.
Observe the permissible towing methods(Ypage 287) and the notes on towing with bothaxles on the ground (Ypage 286).
DYNAMIC SELECT button (all vehicles
except Mercedes-AMG vehicles)
Use the DYNAMIC SELECT button to change thedrive program. Depending on the drive programselected the following vehicle characteristicswill change:
Rthe drive (engine and transmission manage-ment)
Rthe suspension (vehicles with damping sys-tem or AMG adaptive sport suspension sys-tem)
Rthe sound of the exhaust system (vehicleswith sports exhaust system)
Rthe steering
Rthe availability of the ECO start/stop function
Rthe climate control
Each time you start the engine with the Smart-Key or the Start/Stop button, drive programCis
DYNAMIC SELECT button (all vehicles except Mercedes-AMG vehicles)129
Driving and parking
Z

activated. For further information about startingthe engine, see (Ypage 124).
XPress DYNAMIC SELECT buttonCas manytimes as necessary until the desired driveprogram is selected.The selected drive program appears in themultifunction display. After five seconds, thedisplay goes out and the status symbol of theselected drive program appears.
In addition, the current drive program settingsare displayed briefly in the multimedia systemdisplay.
iIn a few countries, the ECO start/stop func-tion is deactivated at the factory due to theavailable fuel grade. In this case, the ECOstart/stop function is not available in anydrive program, regardless of the display in themultimedia system display.
Available drive programs:
CComfortComfortable and economi-cal driving characteristics
SSportSporty driving characteris-tics
IIndividualIndividual settings
EEconomyParticularly economicaldriving characteristics
Additional information for drive programs(Ypage 135).
You can also change gear yourself using thesteering wheel paddle shifters. For further infor-mation on the manual drive program(Ypage 137).
DYNAMIC SELECT controller
(Mercedes-AMG vehicles)
Use the DYNAMIC SELECT controller to changethe drive program. Depending on the drive pro-gram selected the following vehicle character-istics will change:
Rthe drive
Rthe transmission management
RESP®
Rthe suspension (vehicles with AMG adaptivesport suspension system)
Rthe sound of the exhaust system
Rthe availability of the ECO start/stop function
Rthe availability of gliding mode
Each time you start the engine with the Smart-Key or the Start/Stop button, drive programCisactivated. For further information about startingthe engine, see (Ypage 124).
XTurn DYNAMIC SELECT controllerCas manytimes as necessary until the desired driveprogram is selected.The selected drive program appears in themultifunction display. After five seconds thedisplay goes out and the symbol of the selec-ted drive program appears.
The drive program indicator on DYNAMICSELECT controllerClights up in red.
Available drive programs:
IIndividualIndividual settings
CComfortComfort-oriented, opti-mum-economy engine andtransmission settings
SSportSporty engine and trans-mission settings
130DYNAMIC SELECT controller (Mercedes-AMG vehicles)
Driving and parking

S+Sport PlusParticularly sporty trans-mission settings
RaceMaximum sportiness andengine and transmissionsettings suitable for theracetrack
Additional information for drive programs(Ypage 135).
You can also change gear yourself using thesteering wheel paddle shifters. For further infor-mation on the manual drive program(Ypage 137).
Automatic transmission
Important safety notes
GWARNING
If the engine speed is above the idling speed
and you engage transmission position:
orF, the vehicle could pull away suddenly.
There is a risk of an accident.
When engaging transmission position:or
F, always firmly depress the brake pedal
and do not simultaneously accelerate.
GWARNING
The automatic transmission switches to neu-
tral 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 vehi-
cle from rolling away by applying the parking
brake.
DIRECT SELECT lever
Overview of transmission positions
]Park position with parking lock
^Reverse gear
\\Neutral
[Drive
All vehicles (except Mercedes-AMG vehi-cles):the DIRECT SELECT lever is on the right ofthe steering column.
For information on the selector lever inMercedes-AMG vehicles (Ypage 133).
The DIRECT SELECT lever always returns to itsoriginal position. The current transmission posi-tion],^,\\or[is shown in the transmis-sion position display in the multifunction display(Ypage 131).
Transmission position and drive pro-
gram display
The current transmission position and drive pro-gram appear in the multifunction display.
CTransmission position display
DGear

away carefully to check whether the desiredtransmission position is engaged. Ideally, youshould select transmission position[anddrive programEorS.
Engaging park position P
!If the engine speed is too high or the vehicleis coasting, do not shift the automatic trans-mission directly from[to^, from^to[or directly to]. Otherwise, the automatictransmission may be damaged.
XPush the DIRECT SELECT lever switch in thedirection of arrow].Transmission position display]is shown inthe multifunction display.
When you have engaged park position], makesure that the transmission position displayshows]in the multifunction display.
You can engage park position]only when thevehicle is stationary; do not switch directly topark position]at high engine speed.
Depressing the brake and pushing the DIRECTSELECT lever up or down disengages the park-ing lock. The transmission is in neutral\\.
At transmission fluid temperatures below

the SmartKey from the ignition, the automatictransmission shifts to]automatically.
With the Start/Stop button:if you then openthe driver's door or the front-passenger door,the automatic transmission shifts to]auto-matically.
If you want the automatic transmission toremain in neutral\\, e.g. when having the vehi-cle cleaned in an automatic car wash with atowing system:
XVehicles with the Start-Stop button:remove the Start-Stop button from the igni-tion lock.
XInsert the SmartKey into the ignition lock.
XAll vehicles:switch the ignition on.
XDepress the brake pedal and keep itdepressed.
XEngage neutral\\.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch off the ignition and leave the SmartKeyin the ignition lock.
Engaging drive position D
XIf the transmission is in position^or\\:push the DIRECT SELECT lever down past thefirst point of resistance.
XIf the transmission is in position]: depressthe brake pedal and push the DIRECT SELECTlever down past the first point of resistance.
Selector lever (Mercedes-AMG vehi-
cles)
Overview of transmission positions
]Park position with parking lock
^Reverse gear
\\Neutral
[Drive
Transmission position and drive pro-
gram display
The current transmission position and drive pro-gram appear in the multifunction display.
CTransmission position display
DDrive program display
If the transmission position display in the mul-tifunction display is not working, you should pullaway carefully to check whether the desiredtransmission position is engaged. Ideally, youshould select transmission position[anddrive programCorS.
Engaging park position P
XWhen the vehicle is stationary, press but-tonC.
Engaging reverse gear R
!Only move the automatic transmission to^when the vehicle is stationary.
XDepress the brake and keep it pressed.
XPush the selector lever forwards past the firstpoint of resistance.
Automatic transmission133
Driving an d parking
Z

Transmission positions
EPark position
This prevents the vehicle from rollingaway when stopped.
Only shift the transmission to posi-tion]when the vehicle is station-ary. The parking lock should not beused as a brake when parking.Always apply the electronic parkingbrake in addition to the parking lockin order to secure the vehicle.
In the event of a malfunction of thevehicle's electronics, the transmis-sion may lock in position]. Havethe vehicle electronics checkedimmediately at a qualified specialistworkshop.
Park position]is automaticallyengaged if:
Ryou switch off the engine using theSmartKey and remove the Smart-Key
Ryou switch off the engine using theSmartKey or using the Start/Stopbutton and open the driver's dooror front-passenger door
Ryou open the driver's door whenthe vehicle is stationary or whendriving at a very low speed and thetransmission is in position[or^
FReverse gear
Only shift the transmission into posi-tion^when the vehicle is station-ary.
DNeutral
Do not shift the transmission to\\while driving. The automatic trans-mission could otherwise be dam-aged.
No power is transmitted from theengine to the drive wheels.
Releasing the brakes will allow you tomove the vehicle freely, e.g. to pushit or tow it.
If ESP®is deactivated or faulty: shiftthe transmission to position\\if thevehicle is in danger of skidding, e.g.on icy roads.
If you switch the engine off with thetransmission in position^or[,the automatic transmission shifts to\\automatically.
!Coasting in neutral\\maycause damage to the drive train.
:Drive
The automatic transmission changesgear automatically. All forward gearsare available.
Driving tips
Changing gear
The automatic transmission shifts through theindividual gears automatically when it is in trans-mission position[. This automatic gear shift-ing behavior is determined by:
Rthe selected drive program
Rthe position of the accelerator pedal
Rthe road speed
Accelerator pedal position
Your style of driving influences how the auto-matic transmission shifts gear:
Rlittle throttle: early upshifts
Rmore throttle: late upshifts
134Automatic transmission
Driving an d parking