SmartKey
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park positionP
RStart the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
GWARNING
If you attach heavy or large objects to the
SmartKey, the SmartKey could be uninten-
tionally turned in the ignition lock. This could
cause the engine to be switched off. There is a
risk of an accident.
Do not attach any heavy or large objects to the
SmartKey. Remove any bulky key rings before
inserting the SmartKey into the ignition lock.
!Keep the SmartKey away from strong mag-netic fields. Otherwise, the remote controlfunction could be affected.
Strong magnetic fields can occur in the vicin-ity of powerful electrical installations.
Do not keep the SmartKey:
Rwith electronic devices, e.g. a mobile phoneor another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. a metal case.
This can affect the functionality of the Smart-Key.
Vehicles with KEYLESS-GO start function:donot keep the SmartKey in the cargo compart-ment. Otherwise, the SmartKey may not bedetected, e.g. when starting the engine usingthe Start/Stop button.
A brief radio connection between the vehicleand the SmartKey determines whether a validSmartKey is in, or in the direct vicinity of, thevehicle. This occurs, for example:
Rwhen starting the engine
Rwhile driving
Rwhen using HANDS-FREE ACCESS
Rwhen the external door handles are touched
Rduring convenience closing
SmartKey functions
C 7Locks the vehicle
D TOpens/closes the tailgate
Overview of climate control systems
General notes
Observe the settings recommended on the fol-lowing pages. The windows could otherwise fogup.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-tion function
Ractivate the "Windshield defrosting" functionbriefly, if required
Climate control regulates the temperature andair humidity in the vehicle interior. The interiorfilter cleans the air, thus improving the interiorclimate.
The "Cooling with air dehumidification" functionis only available when the engine is running.Optimum climate control is only achieved withthe side windows and roof closed.
If you start the engine using your smartphone,the last selected climate control setting is reac-tivated (Ypage 134).
The integrated filter filters out most particles ofdust and soot and completely filters out pollen.It also reduces gaseous pollutants and odors. Aclogged filter reduces the amount of air suppliedto the vehicle interior. For this reason, youshould always observe the interval for replacingthe filter, which is specified in the MaintenanceBooklet. As it depends on environmental condi-tions, e.g. heavy air pollution, the interval maybe shorter than stated in the Maintenance Book-let.
iVentilate the vehicle for a brief period duringwarm weather, e.g. using the convenienceopening feature (Ypage 91). This will speedup the cooling process and the desired inte-rior temperature will be reached morequickly.
iIt is possible that the blower may be activa-ted automatically 60 minutes after the Smart-Key has been removed depending on variousfactors, e.g. the outside temperature. Thevehicle is then ventilated for 30 minutes to drythe automatic climate control.
Control panel for dual-zone automatic climate control
Example: control panel for dual-zone automatic climate control
CSets the temperature, left (Ypage 123)
DSets the air distribution (Ypage 124)
To start the vehicle without actively using theSmartKey:
Rthe Start/Stop button must be inserted in theignition lock.
Rthe SmartKey must be in the vehicle.
Rthe vehicle must not be locked with theSmartKey or KEYLESS-GO. (Ypage 78)
Do not keep the SmartKey:
Rwith electronic devices, e.g. a mobile phoneor another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. a metal case.
This can affect the functionality of the Smart-Key.
If you lock the vehicle with the SmartKey remotecontrol or with KEYLESS-GO, after a short time:
Ryou will not be able to switch on the ignitionwith the Start/Stop button.
Ryou will no longer be able to start the enginewith the Start/Stop button until the vehicle isunlocked again.
If you lock the vehicle centrally using the buttonon the front door (Ypage 83), you can continueto start the engine with the Start/Stop button.
The engine can be switched off while the vehicleis in motion by pressing and holding the Start/Stop button for three seconds. This functionoperates independently of the ECO start/stopautomatic engine switch-off function.
Key positions with the Start/Stop button
CStart/Stop button
DIgnition lock
As soon as the ignition is switched on, all theindicator lamps in the instrument cluster lightup. Warning and indicator lamps: see(Ypage 256).
If Start/Stop button Chas not yet beenpressed, this corresponds to the SmartKeybeing removed from the ignition.
XTo switch on the power supply:pressStart/Stop button Conce.The power supply is switched on. You can nowactivate the windshield wipers, for example.
The power supply is switched off again if:
Rthe driver's door is opened and
Ryou press Start/Stop button Ctwice when inthis position
XTo switch on the ignition:press Start/Stopbutton Ctwice.The ignition is switched on.
The ignition is switched off again if:
Ryou do not start the engine from this positionwithin 15 minutes
Ryou press Start/Stop button Conce when inthis position
The power supply is switched off again if:
Rthe driver's door is opened and
Ryou press Start/Stop button Conce when inthis position
Removing the Start/Stop button
You can remove the Start/Stop button from theignition lock and start the vehicle as normalusing the SmartKey.
It is possible to switch between Start/Stop but-ton mode and key operation only when thetransmission is in position ].
XRemove Start/Stop button Cfrom ignitionlock D.
You do not have to remove the Start/Stop but-ton from the ignition lock when you leave thevehicle. You should, however, always take theSmartKey with you when leaving the vehicle. Aslong as the SmartKey is in the vehicle:
Rthe vehicle can be started using the Start/Stop button
Rthe electrically powered equipment can beoperated
132Driving
Driving and parking
take the SmartKey with you when leaving thevehicle, even if you only leave it for a short time.Pay attention to the important safety notes.
XDepress the brake pedal and keep itdepressed.
XPress the Start/Stop button once(Ypage 132).The engine starts.
Starting procedure via smartphone
Observe the important safety notes on startingthe engine (Ypage 133).
You can also start your engine via your smart-phone from outside the vehicle. In this case, thepreviously selected climate control setting isactivated. In this way you can cool or heat theinterior of the vehicle before starting the jour-ney.
Only start the engine via your smartphone if it issafe to start and run the engine where your vehi-cle is parked.
Observe the legal stipulations in the area whereyour vehicle is parked. Engine start via smart-phone may be limited to certain countries orregions.
You can execute a maximum of two consecutivestarting attempts via your smartphone. If youpress the start/stop button or insert the Smart-Key into the ignition lock, you can carry out twomore starting attempts with your smartphone.
The engine runs for ten minutes when startingwith the smartphone.
Once you have started the engine, you canswitch the engine off via your smartphone at anytime.
You can only start the engine via your smart-phone if:
Rthe SmartKey is in the ignition lock
Rpark position ]is selected
Rthe accelerator pedal is not depressed
Rthe anti-theft alarm system is not activated
Rthe panic alarm is not activated
Rthe hazard warning lamps are switched off
Rthe hood is closed
Rthe doors are closed and locked
Rthe windows and sliding sunroof are closed
Also make sure that:
Rthe fuel tank is sufficiently filled
Rthe starter battery has been sufficientlycharged
GWARNING
Limbs could be crushed or trapped if the
engine is started unintentionally during ser-
vice or maintenance work. There is a risk of
injury.
Always secure the engine against uninten-
tional starting before carrying out mainte-
nance or repair work.
Make sure that the engine cannot be started viayour smartphone before carrying out mainte-nance or repairs. You can prevent an enginestart via your smartphone, for example, if you:
Rswitch on the hazard warning lamps
Rdo not lock the doors
Ropen a side window
Pulling away
General notes
GWARNING
If the engine speed is above the idling speed
and you engage transmission positionDorR,
the vehicle could pull away suddenly. There is
a risk of an accident.
When engaging transmission positionDorR,
always firmly depress the brake pedal and do
not simultaneously accelerate.
Depress the accelerator carefully when pullingaway.
The vehicle locks centrally once you have pulledaway. The locking knobs in the doors drop down.
You can open the doors from the inside at anytime.
You can also deactivate the automatic lockingfeature, see the Digital Operator's Manual.
It is possible to shift the transmission from posi-tion ]to the desired position only if youdepress the brake pedal. Only then is the park-ing lock released. If you do not depress thebrake pedal, the DIRECT SELECT lever can still
134Driving
Driving an d parking
Releasing automatically
Your vehicle's electric parking brake is auto-matically released if all of the following condi-tions are met:
Rthe seat belt has been fastened
Rthe engine is running
Rthe transmission is in position [or ^andyou accelerate
or
you shift from transmission position ]toposition [or ^. On steeper uphill gradi-ents, you must also depress the acceleratorpedal.
If the transmission is in position ^, the tailgatemust be closed.
If your seat belt is not fastened, the followingconditions must be fulfilled to automaticallyrelease the electric parking brake:
RThe driver's door is closed.
RYou have shifted out of transmission position ]or you have previously driven faster than2 mph (3 km/h).
Ensure that you do not depress the acceleratorpedal unintentionally. Otherwise, the parkingbrake will be released and the vehicle will startto move.
Emergency braking
The vehicle can also be braked during an emer-gency by using the electric parking brake.
XWhile driving, push handle Cof the electricparking brake (Ypage 154).The vehicle is braked as long as you keephandle Cof the electric parking brakedepressed. The longer electric parking brakehandle Cis depressed, the greater the brak-ing force.
During braking:
Ra warning tone sounds
RthePlease Release Parking BrakePlease Release Parking Brakemes-sage appears
Rthe red I(USA only) or $(Canadaonly) indicator lamp in the instrument clusterflashes
When the vehicle has been braked to a stand-still, the electric parking brake is applied.
Parking the vehicle for a long period
If you leave the vehicle parked for longer thanfour weeks, the battery may be damaged byexhaustive discharging.
If you leave the vehicle parked for longer than sixweeks, the vehicle may suffer damage as aresult of lack of use.
XVisit a qualified specialist workshop and seekadvice.
iYou can obtain information about tricklechargers from a qualified specialist work-shop.
Driving tips
General driving tips
Important safety notes
GWARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
GWARNING
If you operate mobile communication equip-
ment when driving, you may be distracted
from the traffic situation. You could also lose
control of the vehicle. There is a risk of an
accident.
Only operate this equipment when the vehicle
is stationary.
Observe the legal requirements for the countryin which you are driving. Some jurisdictions pro-hibit the driver from using a mobile phone whiledriving a vehicle.
If you make a call while driving, always usehands-free mode. Only operate the telephonewhen the traffic situation permits. If you areunsure, pull over to a safe location and stopbefore operating the telephone.
Driving tips155
Driving and parking
Z