This is useful:
R
if you wish to cool the interior of the
vehicle before driving
R if you wish to charge the vehicle at a
charging station/wallbox at the most
inexpensive electricity rate
With the "Air conditioning before start"
function, the vehicle interior is cooled
prior to a desired departure time.
Prerequisites:
R The doors and tailgate are closed.
R The charging cable for the high‑voltage
battery is connected to a power source
and inserted into the vehicle's power
socket.
R The high‑voltage battery has a suffi-
cient charge.
The maximum duration of "Air condition-
ing before start" is 30 minutes.
Set the air distribution of your vehicle as
follows so that the "Air conditioning
before start" function has the greatest
effect:
R in summer, to the center and side vents
R in winter, onto the windshield and side
windows
Information on air distribution can be
found on (Y page 102).
The setting of the airflow regulator has no
influence on the "Air conditioning before
start" function.
i If the programmed time is too short, the
high‑voltage battery cannot be com-
pletely charged. After setting the depar-
ture time, the maximum charge level
which can be reached is then shown.
i If the high‑voltage battery is not suf-
ficiently charged and the "Air condi-
tioning before start" function is acti-
vated, the high‑voltage battery is
charged first. When a charge level of at
least 20 % has been reached, the "Air con-
ditioning before start" function is acti-
vated. This function then has priority over the charging of the high‑voltage
battery.
Activating the set departure time X
Press and hold the control switch on the
control lever up or down until the display
of the last set departure time 0043appears
in the multifunction display. X
Briefly press the OK button on the control
lever.
The departure time is activated 0044. The
setting for the "Air conditioning before
start" function 0087is stored.
Changing the set departure time
X Press and hold the control switch on the
control lever up or down until the Over‐ Over‐
write
write menu appears in the multifunction
display.
X Briefly press the OK button on the control
lever.
X If the 12-hour mode is set:
press and hold the control switch on the
control lever up or down until the
desired mode (am amoder pm
pm) is selected.
X Briefly press the OK button on the control
lever.
X Press and hold the control switch on the
control lever up or down until the
desired hour is selected. Control system
91>> Controls. Z
X
Briefly press the OK button on the control
lever.
X Press and hold the control switch on the
control lever up or down until the "Air
conditioning before start" function is
activated or deactivated.
X Briefly press the OK button on the control
lever.
X Press and hold the control switch on the
control lever up or down until the "Air
conditioning before start" function is
activated or deactivated.
X Briefly press the OK button on the control
lever.
The new departure time is stored and
activated.
The "Air conditioning before start"
function is activated or deactivated.
Starting the charging process of the
high‑voltage battery immediately This function allows you to start the charg-
ing process immediately. The charging
process begins as soon as the charging
cable is connected.
i The charging process also begins when
you insert the charging cable into the
vehicle's power socket. However, this is
only the case if you have not made any
departure time settings.
Information on the charging process can
be found on (Y page 115).
X Press and hold the control switch on the
control lever up or down until the
Instant Charge
Instant Charge menu appears in the
multifunction display.
X Briefly press the OK button on the control
lever.
The charging process is started as soon
as the charging cable is connected.
i When you call up the Instant Charge
Instant Charge
menu, the "Air conditioning before
start" function is not available. Setting the maximum charge current G
WARNING
When connected to a power supply socket, a
high electrical load during the charging
process can lead to overheating of the
external power supply. There is a risk of
fire.
Check the maximum permissible charge
current on site before you begin the charg-
ing process. Contact an authorized electric
drive smart center should you require
assistance. If necessary, adjust the set-
tings of your vehicle.
You can limit the charge current of the
high‑voltage battery. This can protect the
power supply from overloading. You can set
the limit either on the control unit of the
charging cable or via the control system.
The preset standard value is "Max". This
corresponds to the maximum available
charge current of the power supply.
Check the maximum permissible charge
current for the respective power supply
socket before charging the high‑voltage
battery.
The following values are available for
selection: 8 A,12 A,Max. The last value set
remains stored until a change is made.
X Press and hold the control switch on the
control lever up or down until the
Charge Current Charge Current menu appears in the
multifunction display.
X Briefly press the OK button on the control
lever.
X Press and hold the control switch on the
control lever up or down until the
desired amperage is selected.
X Briefly press the OK button on the control
lever.
The selected amperage is set.
i If differing values are set on the charg-
ing cable and the control system, the
high‑voltage battery is charged using
the lowest value. 92
Control system>> Controls.
i
If the vehicle needs more time to charge
the high‑voltage battery than usual,
check the settings of the maximum per-
missible charge current. Messages menu
The Messages Messages menu stores messages that
you can call up.
i When no messages have been stored, the
Messages
Messages menu is not displayed. X
Press the control switch on the control
lever (Y page 83) up or down until the
Messages Messages menu appears in the multi-
function display.
The number of stored messages is 0043dis-
played
X Press the OK button on the control lever
briefly.
The first stored message appears.
X To scroll through messages: Press the OK
button on the control lever briefly.
For more information on display messages,
see (Y page 161).
Maintenance service interval display The maintenance service interval display
will notify you when the next maintenance
service is due and what type of maintenance
service is required.
Example:
R 009A Main Service in XXX mi
Main Service in XXX mi
R 009A Main Service in XX Days Main Service in XX Days
X To confirm: Press the OK button on the
control lever briefly.
The mesage is stored. When the due date for the maintenance
service has been has been passed, the num-
ber of miles (kilometers) or days since are
preceeded by a minus sign.
!
Failure to have the maintenance
service performed at the designated
times/mileage, may result in vehicle
damage that is not covered by the smart
Limited Warranty. Settings menu
In the Settings Settings menu, you can select indi-
vidual settings for your vehicle.
The following functions are available:
R Setting the language
R Setting the temperature unit
R Setting the distance and speed unit
X Press the control switch on the control
lever (Y page 83) up or down until the
Settings Settings menu appears in the multi-
function display.
X Press the OK button on the control lever
briefly.
Setting the language The following languages are available:
R
German
R US English
R UK English
R French
R Italian
R Spanish X
Press the control switch on the control
lever (Y page 83) up or down until the Control system
93>> Controls. Z
Language
Language
submenu appears in the multi-
function display.
X Press the OK button on the control lever
briefly.
X Press the control switch on the control
lever (Y page 83) up or down until the
desired language is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected language is stored.
Setting the temperature unit The following units are available:
R
†
R ‡
X Press the control switch on the control
lever (Y page 83) up or down until the
°F/°C
°F/°C submenu appears in the multifunc-
tion display.
X Press the OK button on the control lever
briefly.
X Press the control switch on the control
lever (Y page 83) up or down until the
desired unit is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected unit is stored.
Setting the distance and speed unit The following units are available:
R
Miles (mi)
R Kilometers (km)
X Press the control switch on the control
lever (Y page 83) up or down until the mi– mi–
km km submenu appears in the multifunction
display.
X Press the OK button on the control lever
briefly. X
Press the control switch on the control
lever (Y page 83) up or down until the
desired unit is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected unit is stored.
i Canada only: The unit for the cruise
control (Y page 97) does not change,
regardless of which unit is set in this
menu. Time menu
The Time Time menu lets you set the time and
offers different display modes.
The following submenus are available:
R Setting time display mode (12-hour or
24-hour mode)
R Setting period of day, am or pm 5
R Setting the hours
R Setting the minutes
X Press the control switch on the control
lever (Y page 83) up or down until the
Time
Time menu appears in the multifunction
display.
X Press the OK button on the control lever
briefly.
Setting the time display mode X
Press the control switch on the control
lever (Y page 83) up or down until the
12h 24h
12h 24h submenu appears in the multi-
function display.
X Press the OK button on the control lever
briefly.
X Press the control switch on the control
lever (Y page 83) up or down until the
desired setting is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected mode is stored.
5 Only available in 12-hour mode. 94
Control system>> Controls.
Setting the period of day
X
Press the control switch on the control
lever (Y page 83) up or down until the
am am pm pmsubmenu appears in the multifunc-
tion display.
X Press the OK button on the control lever
briefly.
X Press the control switch on the control
lever (Y page 83) up or down until the
desired setting is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected mode is stored.
Setting the hours X
Press the control switch on the control
lever (Y page 83) up or down until the
Hour Hour submenu appears in the multifunc-
tion display.
X Press the OK button on the control lever
briefly.
X Press the control switch on the control
lever (Y page 83) up or down until the
desired setting is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected hours are stored.
Setting the minutes X
Press the control switch on the control
lever (Y page 83) up or down until the
Minute Minute submenu appears in the multi-
function display.
X Press the OK button on the control lever
briefly.
X Press the control switch on the control
lever (Y page 83) up or down until the
desired setting is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected minutes are stored. Audio system*
G
WARNING
In order to avoid distraction which could
lead to an accident, the driver should enter
system settings with the vehicle at a stand-
still and operate the system only when road
and traffic conditions permit. Always pay
full attention to traffic conditions first
before operating system controls while
driving.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approx-
imately 14 m) every second. G
WARNING
Always select a volume that allows you to
still hear ambient sound in your immediate
vicinity (e.g. horns, emergency rescue
vehicles, police vehicles, etc.). You could
otherwise cause an accident. G
WARNING
If you wish to have an audio system other
than an original smart audio system fitted
in your vehicle, please always have the nec-
essary work performed at an authorized
smart center.
This is particularly important if your
vehicle is fitted with a radio preinstalla-
tion. Improper connection can result in the
failure of important vehicle functions,
thereby endangering the operating safety
of your vehicle and thus your own safety and
that of other people.
The following pages contain a brief
description of the audio systems available
for the coupé and cabriolet.
The devices are described with their full
complement of equipment. The description
for your individual equipment specifica-
tion applies.
Please refer to the separate operating
instructions for detailed functions. Audio system*
95>> Controls.
* optional Z
Audio system basic
The audio system basic contains the fol-
lowing functions:
R Radio (FM/AM)
R Radio Broadcast Data System (RBDS) and
radio text
R AUX and USB socket (Y page 96)
! Please be sure to read the operating
instructions for the audio system basic
before using the unit. Familiarize your-
self with the various functions of the
unit so that you are able to operate it
easily, reliably and correctly at any
time. 0043
On/off and volume switch
0044 Display
0087 Skip/Scroll/Frequency search switches
0085 Tone settings/Mute/Back control panel
0083 Stored station buttons
0084 Radio/Media/System control panel Audio system navigation/multimedia*
The audio system navigation/multimedia
contains the following functions:
R Radio (FM/AM)
R Radio Broadcast Data System (RBDS)
R AUX and USB-socket
R Bluetooth ®
hands-free device
R Navigation
R Audio operation from CD/DVD or SD Card,
via AUX/USB/iPod ®
, or Bluetooth ®
Audio R
Video operation from CD/DVD or SD Card,
via AUX/USB/iPod ®
R Image display from CD/DVD or SD Card,
via USB/iPod ®
! Please be sure to read the operating
instructions for the audio system navi-
gation/multimedia before using the
unit. Familiarize yourself with the var-
ious functions of the unit so that you are
able to operate it easily, reliably and
correctly at any time. 0043
Bluetooth ®
connection indicator lamp
0044 Display
0087 Microphone
0085 Light sensor
0083 Eject button
0084 Rotary/Push button
006B Menu button AUX and USB sockets
You can connect mobile audio devices such
as an MP3 player via the AUX and USB sock-
ets using commercially available 3.5 mm
socket plug (AUX) or USB connector cable
(USB).
The AUX and USB sockets are located in the
glove box. 96
Audio system*>> Controls.
* optional
0043
USB socket
0044 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 recom-
mended 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
0043
Cruise control activated
0044 Set speed Canada vehicles
0043
Cruise control activated
0044 Set speed
The cruise control is operated via buttons
on the steering wheel. Driving systems
97>> Controls.
* optional Z
0043
Activating or deactivating the cruise
control
0044 Resuming at last set speed or increas-
ing speed
0087 Setting current or lower speed, or
decreasing speed
0085 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 0043briefly.
The cruise control is activated.
CRUISE
CRUISE (USA only) or 0085(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 0087briefly.
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
0085.
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. This
will 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 0085briefly.
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.