Mirrors
Rear-view mirror
X
Anti-glare mode: flick anti-glare lever :
forwards or back. Exterior mirrors
Adjusting the exterior mirrors G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the vehicle's drive system. G
WARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is a risk of an acci-
dent.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder. X
Turn the SmartKey to position 1or 2in the
ignition lock (Y page 131).
X Press button :for the left-hand exterior
mirror or button ;for the right-hand exte-
rior mirror.
The indicator lamp in the corresponding
button lights up in red.
The indicator lamp goes out again after
some time. You can adjust the selected
mirror using adjustment button =as long
as the indicator lamp is lit.
X Press adjustment button =up, down, or to
the left or right until you have adjusted the
exterior mirror to the correct position. You
should have a good overview of traffic con- ditions.
The convex exterior mirrors provide a larger
field of vision.
After the engine has been started, the exte-
rior mirrors are automatically heated at low
outside temperatures. Heating takes a maxi-
mum of ten minutes.
i You can also heat up the exterior mirrors
manually by switching on the rear window
defroster.
Exterior mirror pushed out of position If an exterior mirror has been pushed out of
position, proceed as follows:
X Move the exterior mirror into the correct
position manually. 94
MirrorsSeats, steering wheel and mirrors
Combination switch
Turn signal :
High-beam headlamps
; Turn signal, right
= High-beam flasher
? Turn signal, left
X To indicate briefly: press the combination
switch briefly to the pressure point in the
direction of arrow ;or?.
The corresponding turn signal flashes three
times.
X To indicate: press the combination switch
beyond the pressure point in the direction
of arrow ;or?.
High-beam headlamps X
To switch on the high-beam headlamps:
turn the SmartKey to position 2in the igni-
tion lock or start the drive system.
X Turn the light switch to LorÃ.
X Press the combination switch beyond the
pressure point in the direction of arrow :.
In the Ãposition, the high-beam head-
lamps are only switched on when it is dark
and the engine is running.
The blue Kindicator lamp in the instru-
ment cluster lights up when the high-beam headlamps are switched on.
X To switch off the high-beam head-
lamps: move the combination switch back
to its normal position.
The blue Kindicator lamp in the instru-
ment cluster goes out. Vehicles with Adaptive Highbeam Assist:
when Adaptive Highbeam Assist is active, it
controls activation of the high-beam head-
lamps (Y page 103).
High-beam flasher X
To switch on: turn the SmartKey to posi-
tion 1or 2in the ignition lock or start the
drive system.
X Pull the combination switch in the direction
of arrow =. Hazard warning lamps
X
To switch on the hazard warning lamps:
press button :.
All turn signals flash. If you now switch on a turn signal using the combination switch,
only the turn signal lamp on the corre-
sponding side of the vehicle will flash.
X To switch off the hazard warning lamps:
press button :.
The hazard warning lamps automatically
switch on if:
R an air bag is deployed or
R the vehicle decelerates rapidly from a
speed of above 45 mph (70 km/h) and
comes to a standstill
The hazard warning lamps switch off auto-
matically if the vehicle reaches a speed of
above 6 mph (10 km/h)again after a full
brake application.
The hazard warning lamps still operate if the
ignition is switched off. 102
Exterior lightingLights and windshield wipers
R
in transmission position N
R during and after ESP stability control
If you do not make an additional effort to
apply the brake yourself, the braking effect
may not be sufficient. If necessary, counter-
act the reduced regenerative braking effect
by applying the brake yourself.
Before commencing your journey, ensure that the charging cable required for charging the
high-voltage battery is in the vehicle. Key positions
SmartKey g
To remove the SmartKey
(shift the transmission to position P)
1 Power supply for some consumers, such
as the windshield wipers
2 Ignition (power supply for all consumers)
and drive position
3 To start the engine
i The SmartKey can be turned in the igni-
tion lock even if it is not the correct Smart- Key for the vehicle. The ignition is not
switched on. The drive system cannot be
started.
Start/Stop button General notes
Vehicles with KEYLESS-GO are equipped with
SmartKeys featuring the integrated KEYLESS- GO function and a detachable Start/Stop but-
ton. A check which periodically establishes a radio
connection between the vehicle and the
SmartKey determines whether a valid Smart- Key is in the vehicle. This occurs, for example,
when starting the drive system.
When you insert the Start/Stop button into
the ignition lock, the system needs approx-
imately two seconds recognition time. You
can then use the Start/Stop button.
Pressing the Start/Stop button several times
in succession corresponds to the different
key positions in the ignition lock. This is only
the case if you are not depressing the brake
pedal.
If you depress the brake pedal and press the
Start/Stop button, the drive system starts
immediately.
To start the vehicle without actively using the SmartKey:
R the Start/Stop button must be inserted in
the ignition lock.
R the SmartKey must be in the vehicle.
R the vehicle must not be locked with the
SmartKey or KEYLESS-GO (Y page 73).
Do not keep the KEYLESS-GO key:
R with electronic devices, e.g. a mobile
phone or another SmartKey.
R with metallic objects, e.g. coins or metal
foil.
R inside metallic objects, e.g. a metal case.
This can affect the functionality of KEYLESS-
GO.
If you lock the vehicle with the SmartKey's
remote control or with KEYLESS-GO, after a
short time:
R you will not be able to switch on the ignition
with the Start/Stop button.
R you will not be able to start the drive system
with the Start/Stop button until the vehicle is unlocked again.
If you lock the vehicle centrally using the but-
ton on the front door (Y page 80), you can
continue to start the drive system with the
Start/Stop button. Driving
131Driving and parking Z
The drive system can be switched off while
the vehicle is in motion by pressing and hold- ing the Start/Stop button for three seconds.
Key positions with the Start/Stop button :
Start/Stop button
; Ignition lock
As soon as the ignition is switched on, all the
indicator lamps in the instrument cluster light up. Further information on situations where
an indicator lamp either fails to go out after
starting the drive system or lights up while
driving (Y page 229).
If Start/Stop button :has not yet been
pressed, this corresponds to the key being
removed from the ignition.
X To switch on the power supply: press
Start/Stop button :once.
The power supply is switched on. You can
now activate the windshield wipers, for
example.
The power supply is switched off again if:
R the driver's door is opened and
R you press Start/Stop button :twice when
in this position
X To switch on the ignition: press Start/
Stop button :twice.
The ignition is switched on.
The ignition is switched off when:
R the driver's door is opened and
R you press Start/Stop button :twice when
in this position =
Start/Stop button USA
? Start/Stop button Canada
Removing the Start/Stop button
You can remove the Start/Stop button from
the ignition lock and start the vehicle as nor-
mal using the SmartKey.
You can only switch between Start/Stop but-
ton mode and SmartKey operation when the
vehicle is stationary.
You must also engage park position P.
X Remove Start/Stop button :from ignition
lock ;.
You do not have to remove the Start/Stop
button from the ignition lock when you leave
the vehicle. You should, however, always take the SmartKey with you when leaving the vehi-cle. As long as the SmartKey is in the vehicle:
R the vehicle can be started using the Start/
Stop button
R the electrically powered equipment can be
operated Starting the engine
Important safety notes G
WARNING
If children are left unsupervised in the vehicle, they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment. 132
DrivingDriving and parking
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shift the transmission out of park position P
R start the vehicle's drive system.
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.
Vehicles with an electric motor generate
much less driving noise than vehicles with
internal combustion engines. As a result, your vehicle may not be heard by other road users
in certain situations. This can happen, for
example, when you are parking and your vehi-
cle is not seen by other road users. This
requires you to adopt a particularly anticipa-
tory driving style, as it is necessary to allow
for the possibility that other road users may
behave erratically.
The vehicle is equipped with a sound gener-
ator. The sound generator is activated so that
other road users can hear your vehicle better. The sound generator is activated at speeds of under 20 mph (30 km/h) and switches off
automatically at higher speeds.
Starting procedure with the Start/Stop button The Start/Stop button can be used to start
the vehicle manually without inserting the
SmartKey into the ignition lock. The Start/
Stop button must be inserted in the ignition
lock and the SmartKey must be in the vehicle.
You can start the drive system if a valid key isin the vehicle. Switch off the drive system and
always take the key with you when leaving the vehicle, even if you only leave it for a short
time. Pay attention to the important safety
notes. X
Depress the brake pedal and keep it
depressed.
X Press the Start/Stop button once
(Y page 131).
The drive system is started. Once the vehi-
cle is ready to be driven, the Ready Readydisplay
(Y page 182) appears in the lower part of
the multifunction display.
Starting procedure with the SmartKey To start the drive system using the key
instead of the Start/Stop button, pull the
Start/Stop button out of the ignition lock.
X
Turn the SmartKey to position 3
(Y page 131 )in the ignition lock and release
it.
The drive system is started. Once the vehi-
cle is ready to be driven, the Ready Readydisplay
(Y page 182) appears in the lower part of
the multifunction display. Pulling away
The vehicle is equipped with a sound gener-
ator. At low speeds, an electric vehicle makes less noise than a vehicle with a combustion
engine. The sound generator is activated so
that other road users can hear your vehicle
better. The sound generator is activated at
speeds of under 20 mph (30 km/h) and
switches off automatically at higher speeds.
X Depress the brake pedal and keep it
depressed.
X Move the DIRECT SELECT lever to position
D or R.
X Release the brake pedal.
X Carefully depress the accelerator pedal.
The electric parking brake is automatically
released (Y page 155).
The red F(USA only) or !(Canada
only) indicator lamp in the instrument clus-
ter goes out.
The vehicle locks centrally once you have
pulled away. The locking knobs in the doors Driving
133Driving an d parking Z
A Neutral
No power is transmitted from the
drive system to the drive wheels.
Releasing the brakes will allow you
to move the vehicle freely.
If ESP ®
is faulty: only move the
DIRECT SELECT lever to Nif the
vehicle is in danger of skidding, e.g. on icy roads. 7 Drive
For driving forwards
Driving tips
Holding the vehicle stationary on uphill
gradients Do not hold the vehicle stationary on uphill
gradients by depressing the accelerator
pedal. Instead, only ever hold the vehicle sta-
tionary on uphill gradients by:
R depressing the brake pedal
R engaging the electric parking brake
Kickdown Use kickdown for maximum acceleration.
X Depress the accelerator pedal beyond the
pressure point.
The needle in the power display points to
the boost area (Y page 183).
X Ease off the accelerator pedal once the
desired speed is reached.
i Maximum acceleration is available for a
limited time.
Rocking the vehicle free Shifting the transmission repeatedly between
gears Dand Rmay help to free the vehicle if it
has become stuck in slush or snow. The vehi- cle's engine management system limits the
speed to a maximum of 5 mph (9 km/h) when shifting back and forth. To shift back and forth
between transmission positions Dand R, move the DIRECT SELECT lever up and down
past the point of resistance. Program selector button
The program selector button allows you to
choose between drive programs with differ-
ent driving characteristics. X
Press program selector button :.
The selected drive program appears in the
multifunction display.
The transmission switches to automatic drive program Eeach time the drive system is star-
ted. E
Economy Comfortable, economical
driving style
S
Sport Sporty driving style
E+
Economy
Plus Comfortable, particularly
economical driving style
Drive program
Drive program Eis characterized by the fol-
lowing:
R the vehicle pulling away more gently in
forward gear unless the accelerator pedal
is depressed fully.
R reduced power on the accelerator pedal
increases sensitivity. This supports an even
and economical driving style.
R the wheels are less likely to spin.
R full power output by using kickdown. Transmission
137Driving and parking Z
In particular, the function of the radar sensors
can be impaired in the case of:
R there is dirt on the sensors or anything else
covering the sensors
R there is snow or heavy rain
R there is interference by other radar sources
R there are strong radar reflections, for
example in parking garages
R a narrow vehicle traveling in front, e.g. a
motorbike
R a vehicle traveling in front on a different line
relative to the center of your vehicle
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensors checked at a qualified spe-
cialist workshop. This also applies to colli-
sions at slow speeds where there is no visible
damage to the front of the vehicle.
If the radar sensors are not available, the sys-
tem switches automatically to level Dwith
moderate recuperation. Have the radar sen-
sors checked at a qualified specialist work-
shop.
Automatic adjustment of recuperation
on downhill gradients The vehicle can detect steep downhill gradi-
ents. To reduce acceleration downhill and to
charge the high-voltage battery, recuperation is increased steplessly. This is comparable to
the engine brake in a combustion engine
when you downshift a gear on a downhill gra- dient.
Automatic adjustment of recuperation on
downhill gradients is available in level DAUTO
or on vehicles without steering wheel paddle
shifters in level D.
Intelligent recuperation The vehicle uses the map and camera data of
Traffic Sign Assist in addition to the sensors
of COLLISION PREVENTION ASSIST PLUS
during radar-based recuperation (D AUTO
). The
rate of recuperation is then automatically adjusted to the current traffic situation, tak-
ing the current and future maximum speed
into account. High-voltage battery
Important safety notes
G
DANGER
The vehicle's high voltage electrical system is under high voltage. If you modify components
in the vehicle's high-voltage electrical system or touch damaged components, you may be
electrocuted. The components in the vehi-
cle's high-voltage electrical system may be
damaged in an accident, although the damage
is not visible. There is a risk of fatal injury.
Following an accident, do not touch any high- voltage components and never modify the
vehicle's high-voltage electrical system. Have
the vehicle towed away after an accident and the vehicle's high-voltage electrical system
checked by a qualified specialist workshop. G
WARNING
In the event of a vehicle fire, the internal pres- sure of the high-voltage battery can exceed a
critical value. In this case flammable gas
escapes through a ventilation valve on the
underbody. The gas can ignite. There is a risk of injury.
Leave the danger zone immediately. Secure
the danger area at a suitable distance, whilst
observing legal requirements. G
DANGER
If you use incorrectly installed mains sockets or adapters, extension cables or similar to
connect the charging cable to a mains socket,
this could lead to fires or an electric shock.
There is a risk of fatal injury. 140
High-voltage batteryDriving and parking
computer are different, the high-voltage bat-
tery is charged using the lower value.
If the vehicle requires more time than usual to
charge the high-voltage battery, check:
R the settings of the maximum charge cur-
rent on the controls of the charging cable
R the settings of the maximum charge cur-
rent in the menu of the on-board computer
Connecting the charging cable :
To open the charge socket flap
; Tire pressure table
= Socket cap
? Fastener
A Vehicle socket
B Warning sticker
X Shift the DIRECT SELECT lever to position
P.
X Switch the ignition off.
X Press the charge socket flap in the direc-
tion of arrow :.
The charge socket flap swings up. X
Slide fastener ?to the right.
Socket cap =is open.
X Insert the power supply plug into the elec-
trical outlet to the stop.
X Insert the charging cable connector into
vehicle socket Ato the stop.
The high-voltage battery is being charged.
The vehicle must not be moved while the
charging cable is connected or during charg-
ing.
i Depending on the temperature, the
engine cooling system and battery cooling
system may audibly switch on when the
charging cable is connected or during the
charging process.
Removing the charging cable !
Before driving away, you must ensure
that, for your own safety and to avoid dam- age, the charging cable has been removed
from the vehicle socket. Otherwise, you
cannot shift the transmission out of posi-
tion P.
When the charge level display reaches 100%, the battery is fully charged (Y page 184). When the battery is charged:
X Press and hold button Con the charging
cable connector and remove the charging
cable from vehicle socket A.
X Close socket cap =.
X Close the charge socket flap. 148
High-voltage batteryDriving and parking