
Charge level gauge
!
Do not hang any objects on the charge
level gauge.
This could cause the charge level gauge
to be torn from its mountings and be dam-
aged.
The charge level gauge :displays charge
status of the high-voltage battery as a per-
centage.
When the High-voltage Battery at High-voltage Battery at
Reserve Level
Reserve Level message appears in the
multifunction display while the drive sys- tem is in operation, the high-voltage bat-
tery has reached the reserve level.
i If the charge level of the high-voltage
battery has dropped below 20 %, recharge it at:
R an AC power socket (Y page 114)
R a private wall box (Y page 115)
R a public charging station
(Y page 117)
Power gauge G
WARNING
The operating condition of the high-volt-
age battery (e.g. not yet at normal operat-
ing temperature or fully charged) influen- ces the braking effect of the electric
motor.
In overrun or braking mode, the motor's
braking effect may therefore be reduced or
may not be present at all.
As a result of the reduced engine braking
effect, you may cause an accident and
injure yourself or others.
Compensate for the reduced engine braking effect by pressing the brake pedal accord-
ingly, as required.
! Do not hang any objects on the power
gauge.
This could cause the power gauge to be
torn from its mountings and be damaged. Power gauge
;contains two segments:
R Section right of 0
Power gauge ;indicates the current
power that the drive system delivers to
the rear wheels. 100 % correspond to 55 kW peak power.
R Section left of 0
When you release the accelerator pedal
or when you depress the brake pedal, the
electric motor operates as a generator.
Electric current is produced and stored
in the high-voltage battery. As long as
the high-voltage battery is being
charged, the electric motor simulates an
engine brake.
When the pointer of power gauge ;is in
the "OFF“ position, the vehicle is not ready to drive, because:
R the drive system has not been started
R the gear selector lever has not been
moved to position Nor Pwhen starting
the drive system
R the charging cable is connected to the
vehicle
R there is not enough power from the high-
voltage battery
R a problem occured in the high-voltage
system
After the drive system has been started, the pointer of power gauge ;moves to posi-
tion 0.READY
READY appears in the multifunction
display (Y page 87). The vehicle is ready
to drive. Adjusting instrument cluster illumi-
nation
You can adjust the illumination of R the switches and dials in the instrument
cluster
R the radio
R the climate control panel
R the charge level and power gauges
Five illumination levels are available. 82
Instrument cluster>> Controls.

Transmission position indicator
The transmission position indicator
:
displays the current gear selector lever
position. Display Function
P
Park position
R
Reverse gear
N
Neutral
D
Drive Display Function
N (flashes)
There is a parking lock
malfunction.
X Move the gear selector
lever slowly from posi-
tion Pto position Rand
back to position P.
If Nremains flashing in
the multifunction display:
X Move the gear selector
lever to position P. When
leaving the vehicle,
apply the parking brake
to secure the vehicle
from rolling away.
X Contact an authorized
electric drive smart
center. 0 X
Move the gear selector
lever to park position P
or neutral position N.
X Turn the key to starter
switch position 2
(Y page 57) and hold it in
position until READY READY
appears in the multi-
function display
(Y page 87). Recuperation display*
The recuperation display shows you the
current set recuperation level. You can set the recuperation level by using the steer-
ing wheel paddle shifters* (Y page 79).
The following levels are available:
R no recuperation (level 0)
R moderate recuperation (level 1)
R high recuperation (level 2) 84
Control system>> Controls.
* optional

No recuperation (level 0)
:
Symbol for no recuperation
When this mode is set, there is no recuper-
ation. When you release the accelerator
pedal, the vehicle rolls on unbraked.
Use this mode in situations when driving
without frequent braking, for example on
highways.
Moderate recuperation (level 1) Moderate recuperation occurs when this
mode is set. When you release the acceler-
ator pedal, the vehicle is slightly braked. Gained kinetic energy is converted into
electrical energy by the electric motor.
This energy is stored in the high-voltage
battery.
This mode is set as standard when starting
the drive system.
Use this mode in situations of well-bal-
anced relationship between accelerating
and braking, for example on cross-country
rides. High recuperation (level 2) :
Symbol for high recuperation
High recuperation occurs when this mode is
set. When you release the accelerator
pedal, the vehicle is deeply braked. Energy conversion of kinetic energy to electrical
energy is most effective in this mode.
Use this mode in situations in which you
need to brake frequently, for example while
driving stop-and-go in city traffic. Maximum available power
G
WARNING
When the indicator for the maximum avail- able power is not at its maximal range, the
power output is reduced noticeably. Adapt
your speed and driving accordingly. Oth-
erwise, you could cause an accident. Exer-
cise particular care when passing or accel-
erating. The indicator for the maximum available
power of the drive system contains three
segments
:. The number of dark segments
indicates power that is currently availa-
ble. Control system
85>> Controls. Z

:
USB socket
; AUX socket smart surround sound system*
The smart surround sound system supple-
ments the existing speakers with more
powerful and additional speakers (includ- ing a digital amplifier in the passenger
footwell and a passive subwoofer). Driving systems
Cruise control*
The cruise control maintains the speed you set for your vehicle automatically. On
downhill grades, the cruise control does
not brake the vehicle via the brake system.
The cruise control can only use the braking power of the engine. You must apply the
brakes yourself in order to reduce the
vehicle speed. The cruise control will then
be canceled. G
WARNING
The cruise control is a convenience system designed to assist the driver during vehi-
cle operation. The cruise control cannot
take road, traffic, and weather conditions
into account. The driver is and must always
remain responsible for the vehicle’s speed and for safe brake operation. Do not use the cruise control
R if the road, traffic, and weather condi-
tions do not make it advisable to travel at
a constant speed
R on slippery roads
Rapid changes in tire traction can result
in wheel spin and loss of control.
R when driving in fog
The use of the cruise control is recommen-
ded for driving at a constant speed for
extended periods of time.
With the cruise control is activated and a
speed set, the following message appears
in the multifunction display: U.S. vehicles
:
Cruise control activated
; Set speed Canada vehicles
:
Cruise control activated
; Set speed
The cruise control is operated via buttons
on the steering wheel. Driving systems
97>> Controls.
* optional Z

:
Activating or deactivating the cruise
control
; Resuming at last set speed or increas-
ing speed
= Setting current or lower speed, or
decreasing speed
? Canceling the cruise control
Activating/deactivating The cruise control must be activated before
you can set a speed. When you switch off the drive system, the cruise control is deac-
tivated automatically.
X Press ON/OFF button :briefly.
The cruise control is activated.
CRUISE CRUISE (USA only) or V(Canada only)
appears in the multifunction display.
Setting current speed You can set any speed above 20 mph
(30 km/h).
X Accelerate the vehicle to the desired
speed.
X With the cruise control activated, press
SET/− button =briefly.
X Remove your foot from the accelerator
pedal.
The current speed is set and the vehicle
maintains that speed.
USA only: set
set appears in the multifunc-
tion display to indicate that the speed
has been set. Canada only: The set speed appears in the
multifunction display next to cruise
control symbol V.
i On uphill grades, the cruise control
may not be able to maintain the set speed.
Once the grade eases, the set speed will
be resumed.
On downhill grades, the cruise control
can only maintain the set speed using the
drive systems braking power. You must
apply the brakes yourself when the vehi- cle does not slow down sufficiently. Thiswill cancel the cruise control.
Canceling cruise control When the cruise control is activated, you
can cancel it at any time and resume the set
speed later.
X Press CANCEL button ?briefly.
or
X Depress the brake pedal.
The cruise control is canceled.
The cruise control deactivates automati-
cally, when
R you engage the parking brake
R the vehicle speed is below 20 mphh
(30 km/h)
R ESP ®
is in operation.
Resuming last set speed G
WARNING
The “Resume” function should only be oper- ated if the driver is fully aware of the pre-viously set speed and wishes to resume this particular preset speed.
The set speed stored in memory should only
be set again if prevailing road conditions and legal speed limits permit. Possible
acceleration or deceleration differences
arising from returning to the preset speed
could cause an accident and/or serious
injury to you and others. 98
Driving systems>> Controls.

Storage compartments
G
WARNING
To help avoid personal injury during a col- lision or sudden maneuver, exercise care
when storing objects in the vehicle. Put
luggage or cargo in the cargo compartment if possible. Do not pile luggage or cargo
higher than the seat backrests.
Keep compartment lids closed. This will
help to prevent stored objects from being
thrown about and injuring vehicle occu-
pants during
R hard braking
R a change of direction
R an accident
Do not store objects under the driver’s seat. Objects stored under the driver’s seat can
slide forward into driver’s foot well during
braking and get caught between or beneath
the pedals. This could restrict your ability
to brake or accelerate and could lead to
accidents and injury.
Coin holder The coin holder is located in front of the
gear selector lever. Example illustration (coupé)
: Coin holder
Door pockets The door pockets are located in the driver’s
and passenger door. :
Door pocket
Storage trays next to the steering wheel The storage trays are located to the left and
right of the steering wheel. :
Storage tray
Glove box i
A clamp rail for slips of paper is loca-
ted on the outside of the glove box lid. 106
Loading and storing>> Controls.

If you remove the charging cable from the
power supply socket, the value is reset to
the default value for the next charging
process.
i You can also set the maximum charge
current via the control system
(Y page 92).
If differing values are set on the charg- ing cable and the control system, the
high‑voltage battery is charged using
the lowest value.
Charging the high‑voltage battery X
Engage the parking brake.
X Move the gear selector lever to park
position P.
X Switch off the ignition. X
Open charge socket flap :.
X Remove cover ;from the charge socket.
X Insert the charging cable into the sta-
tionary connection, i.e. an AC power
socket.
X Insert plug Aof the charging cable into
charge socket =to the stop.
The high‑voltage battery is being
charged. i
The vehicle must not be moved during
charging.
The è indicator lamp in the instru-
ment cluster comes on when the ignition
is switched on and the charging cable is connected.
i The drive system and battery cooling
systems may switch on audibly during the
charging process, depending on the tem-
perature.
Removing the charging cable The battery is charged completely when the
indicator in the charge level gauge is at
100% (Y page 81).
! Make sure the charging cable has been
disconnected before driving off. The
vehicle or charging cable may otherwise
be damaged.
X Press release button ?on cable plug A
and disconnect it from charge socket =.
X Disconnect the charging cable from the
stationary connection.
X Slip cover ;on charge socket =.
X Close charge socket flap :. Charging at a public charging station
The payment procedure and charging pro-
cesses may differ between public charging
stations, depending on the provider.
Please make yourself familiar with the
proper procedures of the public charging
station at which you are intending to
charge your vehicle.
Charging station without charging com- munication You must activate charging stations with-
out charging communication before the
charging process. This can be done with an
RFID card or a telephone call, for example. High-voltage battery
117>> Operation. Z

Observe the provider's instructions at the
charging station.
Charging station with charging commu-
nication („Plug&Charge“) You do not have to activate charging sta-
tions with charging communication before
the charging process. This is done by the
vehicle. This function is called "Plug &
Charge". Information is exchanged
between the vehicle and the charging sta-
tion via the charging cable for activation.
This is for:
R mutual authorization of the vehicle and
the charging station
R verification of contract data
R automatic billing of the energy costs
Electronic certificates are used here for
secure exchange of data.
If the verification of contract data is suc-
cessful, the charging process is initiated.
i A preliminary version of the
ISO/IEC 15118 standard is used for com-
munication between the vehicle and the
charging station. If it is necessary to
update your vehicle, consult an author-
ized electric drive smart center.
In order to use "Plug & Charge", you have to
configure the functions of your vehicle on
the "Vehicle Homepage" (Y page 120). For
this you require a "Plug & Charge" certif-
icate which you receive from your power
company after concluding a suitable con-
tract. Consult an authorized electric drive
smart center if you have problems with the
configuration or have no access to the
Internet.
The charging station offers information on the availability of electricity and costs.
This information is processed by the vehi-
cle and is used for an optimum charging of the high‑voltage battery (Y page 123). The
energy costs are automatically calculated
after the charging process is complete. With your existing electricity contract,
you and others who have access to your vehi-
cle can charge the costs to your electricity
bill. For this reason, cancel your existing electricity contract for this vehicle
before you sell it. Delete your "Plug &
Charge" certificate by all means.
i You can delete the certificate from the
vehicle's data on the "Vehicle Home-
page". Please consult an authorized
electric drive smart center if you do not have access to the Internet.
If the charging station allows the connec-
ted vehicle access to the Internet, you can
call up and change information pertaining to the vehicle on the "Vehicle Homepage"
(Y page 120).
Connecting the charging cable X
Engage the parking brake.
X Move the gear selector lever to park
position P.
X Switch off the ignition.
X Open the charge socket flap.
X Remove the cover from the charge socket.
X Insert plug of the charging cable into the
charge socket to the stop.
The high‑voltage battery is being
charged.
i The vehicle must not be moved during
charging.
The è indicator lamp in the multi-
function display comes on when the igni- tion is switched on and the charging
cable is connected.
i The drive system and battery cooling
systems may switch on audibly during the
charging process, depending on the tem- perature. 118
High-voltage battery>> Operation.