Page 121 of 317

Lighting119Fault in LED headlight system
When the system detects a failure in
the LED headlight system, f
illuminates and a warning is displayed in the Driver Information Centre.
Hazard warning flashers
Operated by pressing ¨.
In the event of an accident with airbag
deployment the hazard warning
flashers are activated automatically.
Turn lightslever up:right turn signallever down:left turn signal
A resistance point can be felt when
moving the lever.
Constant flashing is activated when
the lever is being moved beyond the
resistance point. It is deactivated
when the steering wheel is moved in
the opposite direction or lever is
manually moved back to its neutral
position.
Activate temporary flashing by
holding the lever just before the
resistance point. Turning lights will
flash until lever is being released.
To activate three flashes, tap the
lever briefly without passing the
resistance point.
When a trailer is connected, turn
signal flashes six times when
pressing the lever until resistance is
felt and then releasing.
Front fog lights
Operated by pressing >.
Page 127 of 317

Infotainment system125panel, the controls on the steering
wheel, or - if provided by your mobile
phone - via speech recognition.
The well-thought-out design of the
control elements, the touch screen
and the clear display enable you to
control the system easily and
intuitively.
Note
This manual describes all options
and features available for the
various Infotainment systems.
Certain descriptions, including those
for display and menu functions, may
not apply to your vehicle due to
model variant, country
specifications, special equipment or
accessories.
Important information on
operation and traffic safety9 Warning
The Infotainment system must be
used so that the vehicle can be
driven safely at all times. If in
doubt, stop the vehicle and
operate the Infotainment system
while the vehicle is stationary.9 Warning
In some areas one-way streets
and other roads and entrances
(e.g. pedestrian zones) that you
are not allowed to turn into are not marked on the map. In such areas
the Infotainment system may
issue a warning that must be
accepted. Here you must pay
particular attention to one-way
streets, roads and entrances that
you are not allowed to drive into.
Radio reception
Radio reception may be disrupted by
static, noise, distortion or loss of
reception due to:
● changes in distance from the transmitter
● multipath reception due to reflection
● shadowing
Theft-deterrent feature
The Infotainment system is equipped
with an electronic security system for
the purpose of theft deterrence.
The Infotainment system therefore
functions only in your vehicle and is
worthless to a thief.
Page 130 of 317

128Infotainment systemSteering wheel controls
1qw
Short press: open OnStar
menu if no phone
connected ........................... 129
or take phone call if phone connected ........................... 164
or open phone menu if
phone connected ................167
or dial last number in call
list when phone menu
displayed ............................. 167
or switch between calls
when calls are waiting .........167
Long press: activate
speech recognition ..............163
2 SRC (Source) ...................... 129
Press: select audio source ..129
Turn upwards /
downwards: select next /
previous preset radio
station when radio active ....137
or select next / previous
track / chapter / picture
when external devices
active ................................... 144
or select next / previous
entry in call list when
phone function active and
call list open ........................ 167
Turn upwards /
downwards and hold:
scroll quickly through the
entries in the call list ............ 167
3 +
Press: increase volume4 -Press: reduce volume
5 xn
Press: end / decline call ......167
or deactivate speech
recognition .......................... 163
or activate / deactivate
mute function ...................... 129
Page 131 of 317

Infotainment system129Usage
Control elements
The Infotainment system is operated
via function buttons, a touch screen
and menus that are shown on the
display.
Inputs are made optionally via: ● the control panel on the Infotainment system 3 126
● the touch screen 3 131
● audio controls on the steering wheel 3 126
● the speech recognition 3 163
Switching the Infotainment
system on or off
Short press X to switch the system
on. After switching on, the last
selected Infotainment source
becomes active.
Long press X to switch the system
off.Automatic switch-off
If the Infotainment system has been
switched on by pressing X while the
ignition is switched off, it will switch off
again automatically 10 minutes after
the last user input.
Setting the volume Turn X. The current setting is shown
on the display.
When the Infotainment system is
switched on, the last selected volume is set, provided that it is lower than themaximum start-up volume. For a
detailed description 3 134.
Speed compensated volume
When the speed compensated
volume is activated 3 134, the
volume is adapted automatically to
make up for the road and wind noise
as you drive.
Mute
Press X to mute the Infotainment
system.
To cancel the mute function, press
X again. The last selected volume is
set again.Modes of operation
Press ; to display the home menu.
Note
For a detailed description of menu
operation via touch screen 3 131.
Audio
Select Audio to open the main menu
of the last selected audio mode.
Select Source on the screen to
display the interaction selector bar.
To change to another audio mode,
touch one of the items in the
interaction selector bar.
Page 165 of 317

Infotainment system163Activate the desired option:● Fastest for the fastest route
● Eco-friendly for a route that
allows ecologically friendly
drivingSpeech recognition
General information The voice pass-thru application of the
Infotainment system allows access to the speech recognition commands on
your smartphone. See your
smartphone manufacturer's
operating instructions to find out
whether your smartphone supports this feature.
In order to use the voice pass-thru
application, the smartphone must be
connected to the Infotainment system via USB cable 3 143 or via Bluetooth
3 164.
Usage
Activating speech recognition Press and hold g on the control panel
or qw on the steering wheel to start
a speech recognition session. A voice
command message is displayed on
the screen.As soon as a beep is heard, you can
say a command. For information on
the commands supported, see the
operating instructions of your
smartphone.
Adjusting the volume of voice
prompts
Turn m on the control panel or press
+ / - on the right side of the steering
wheel to increase or decrease the
volume of voice prompts.
Deactivating speech recognition Press xn on the steering wheel.
The voice command message
disappears and the speech
recognition session is ended.
Page 170 of 317

168Infotainment systemPhone main menuPress ; and then select Phone to
display the respective menu.
Note
The Phone main menu is only
available if a mobile phone is connected to the Infotainment
system via Bluetooth. For a detailed
description 3 164.
Many functions of the mobile phone can now be controlled via the phone
main menu (and associated
submenus), and via the phone-
specific controls on the steering
wheel.
Initiating a phone call
Entering a phone number
Press ; and then select Phone.
Enter a telephone number using the
keypad in the phone main menu.
To delete one or more entered
characters, touch or touch and hold
⇦.
Touch v on the screen or press qw
on the steering wheel to start dialling.
Using the phone book Note
When pairing a mobile phone with
the Infotainment system via
Bluetooth, the phone book of the
mobile phone is downloaded
automatically 3 164.
Press ; and then select Phone.
Select Contacts in the phone main
menu.
Note
The g symbol next to a phone
number indicates that the contact is stored on the SIM card.
Quick search 1. Select u to display a list of all
contacts.
2. Scroll through the list of contacts entries.
3. Touch the contact you wish to call.
A menu with all phone numbers
stored for the selected contact is
displayed.
4. Select the desired phone number to initiate the call.
Page 172 of 317

170Infotainment system
Select q for outgoing calls, r for
missed calls, s for incoming calls
and p for all calls. The respective call
list is displayed.
Select the desired entry to initiate a
call.
Redialling a number
The last dialled phone number can be
redialled.
Press ; and then select Phone.
Select v on the screen or press qw
on the steering wheel.
Using speed dial numbers
Speed dial numbers that are stored
on the mobile phone can also be
dialled using the keypad of the phone main menu.
Press ; and then select Phone.
Touch and hold the respective digit on the keypad to initiate the call.
Incoming phone call
Taking a call
If an audio mode, e.g. the radio or
USB mode, is active at the moment a
call comes in, the audio source is
muted and stays muted until the call
ends.
A message with the caller's phone
number or name (if available) is
displayed.
To answer the call, select v in the
message or press qw on the steering
wheel.
Rejecting a call
To reject the call, select J in the
message or press xn on the
steering wheel.
Changing the ring tone
Press ; and then select Settings.
Select Bluetooth and then Ringtones
to display the respective menu. A list
of all paired devices is displayed.
Select the desired device. A list of all
ringtones available for this device is
displayed.
Page 176 of 317

174Climate controlAir conditioning system
In addition to the heating and
ventilation system, the air
conditioning system has controls for:
n:cooling4:air recirculation
Heated seats ß 3 42, Heated
steering wheel * 3 83.
Cooling n
Press n to switch on cooling. The
LED in the button illuminates to
indicate activation. Cooling is only
functional when the engine is running and climate control fan is switched on.
Press n again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) as soon as the
outside temperature is slightly above
the freezing point. Therefore
condensation may form and drip from under the vehicle.
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons. Activated cooling
may inhibit autostops.
Stop-start system 3 185.
Air recirculation system 4
Press 4 to activate air recirculation
mode. The LED in the button
illuminates to indicate activation.
Press 4 again to deactivate air
recirculation mode.9 Warning
The exchange of fresh air is
reduced in air recirculation mode.
In operation without cooling the air humidity increases, so the
windows may mist up from inside.
The quality of the passenger
compartment air deteriorates,
which may cause the vehicle
occupants to feel drowsy.
In warm and very humid ambient air conditions, the windscreen may mist
up from outside when cold air is
directed towards it. If windscreen
mists up from outside, activate
windscreen wiper and deactivate l.
Maximum cooling
Briefly open the windows so that hot
air can disperse quickly.
● Switch on cooling n.
● Air recirculation system 4 on.
● Press air distribution switch M.
● Set temperature control to coldest level.
● Set fan speed to highest level.
● Open all vents.