Activating/deactivating
X
Turn the key to position 2in the ignition lock
(Y page 133).
X To activate: press thegrocker switch up
or down.
The indicator lamp above the grocker
switch lights up.
Air-recirculation mode is activated automati-
cally: R at high outside temperatures
R in tunnels (vehicles with a navigation system
only)
The indicator lamp above the grocker
switch is not lit when automatic air-recirculation
mode is activated. Outside air is added after
approximately 30 minutes.
X To deactivate: press thegrocker switch
up or down.
The indicator lamp above the grocker
switch goes out.
Air-recirculation mode is deactivated automati-
cally:
R after approximately five minutes at outside
temperatures below approximately 5 †
R after approximately five minutes if "Cooling
with air dehumidification" is deactivated
R after approximately 30 minutes at outside
temperatures above approximately 5 †if the
"Cooling with air dehumidification" function is
activated Opening or closing using the air-recir-
culation button G
WARNING
During opening, body parts could be drawn in
or become trapped between the side window and the door frame. There is a risk of injury.
Monitor the entire opening procedure. When
opening, make sure that nobody is touching
the side window. If somebody becomes trap-
ped, release the switch immediately to inter-
rupt the opening procedure. G
WARNING
During closing, body parts could be drawn in
or become trapped between the side window and the door frame. There is a risk of injury.
Monitor the entire closing procedure. When
closing, make sure that no body parts are in
the closing area. If somebody becomes trap-
ped, release the switch immediately to inter-
rupt the closing procedure.
X To close: Press and hold the grocker
switch up or down until the side windows
close.
The indicator lamp above the grocker
switch lights up. Air-recirculation mode is
activated.
X To open: Press and hold the grocker
switch up or down until the side windows
open.
The indicator lamp above the grocker
switch goes out. Air-recirculation mode is
deactivated. Ionisation
Ionisation is used to purify and freshen the air in the vehicle interior, which is conducive to a
pleasant climate.
The ionisation of the interior air is odourless and
cannot, directly, be perceived in the vehicle inte- rior.
You can switch ionisation on or off using the
multimedia system (Y page 288).
Ionisation can only be operated when the auto-
matic climate control is switched on. The side air vent on the driver's side must be open. Air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air vents. This could result in burns or frostbite in the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air out- 130
Air ventsClimate control
Possible readings on the multifunction dis-
play:
R ZGearshift recommendation for manual
transmission (Y page 144) or for automatic
transmission (manual gearshifting)
(Y page 152)
R j Active Parking Assist (Y page 188)
R È SPEEDTRONIC (Y page 169)
R ¯ Cruise control (Y page 167)
R a DISTRONIC PLUS Steering Assist and
Stop&Go Pilot (Y page 178)
R _ Adaptive Highbeam Assist Plus
(Y page 117)
R è ECO start/stop function (Y page 137)
R ë HOLD function (Y page 179)
R ð Maximum permissible speed exceeded
(for certain countries only) Head-up display
General notes The Head-up Display projects information from
the navigation system and the driver assistance
systems above the dashboard into the driver's
field of vision. This way, the Head-up Display
enables drivers to see information without hav-
ing to take their eyes off the road.
A requirement for the display of the content is
that the following functions are available in the
vehicle and are switched on:
R Cruise control
R SPEEDTRONIC
R DISTRONIC PLUS
R Traffic Sign Assist
R Navigation
Important safety notes The head-up display is only an aid and is not a
substitute for attentive driving.
Speed limits and overtaking restrictions are not
always correctly displayed. Traffic signs always
have priority over the Traffic Sign Assist display.
The visibility of the head-up display is influenced by the following conditions:
R the driver's seat position
R the positioning of the display image
R the general light conditions R
sunglasses with polarisation filters
R wet road surfaces
R blocking of sunlight by objects on the display
cover
In the event of extreme sunlight, sections of the
display may fade. This can be reversed by
switching the head-up display off and on again.
i Vehicles with the head-up display are equip-
ped with a special windscreen. Should repairs
be necessary, have the windscreen replaced
at a qualified specialist workshop.
Displays and operation Switching the head-up display on/off
X
Press the :button.
When the head-up display is switched on, the display appears in the driver's field of vision.
Standard displays on the head-up display :
Navigation instructions
; Current speed
= Detected instructions and traffic signs
? Cruise control, SPEEDTRONIC or
DISTRONIC PLUS set speed Displays and operation
223On-board computer and displays Z
X
Press ato confirm.
A graphical selection list appears.
X Press :or9 to select the desired dis-
play.
X Press the abutton to confirm the selec-
tion.
You can find more information on the navigation
displays in the multimedia system (see Digital
Owner's Manual).
Information on Traffic Sign Assist displays
(Y page 202).
Setting the position You can adjust the position of the head-up dis-
play on the windscreen. You can compensate for
height differences if the seat positions are
changed, for example.
X Switch on the head-up display (Y page 223).
X Press òon the steering wheel to open the
menu list.
X Press :or9 on the steering wheel to
select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Press :or9 to select the Head-up Head-up
display
display submenu.
X Press ato confirm.
X Press :or9 to select the Position
Position
function.
X Press ato change the setting.
X Press :or9 to adjust the position to a
level from Level
Level +5
+5(up) to Level
Level -5
-5(down).
X Press aor% to save the setting.
Using the Memory function, you can save and
call up the set position of the head-up display as
a preset position (Y page 112).
Adjusting the brightness
The brightness of the head-up display is auto-
matically adjusted to the surrounding light con- ditions. You can also individually adjust the
brightness of the head-up display.
X Switch on the head-up display (Y page 223).
X Press òon the steering wheel to open the
menu list.
X Press :or9 on the steering wheel to
select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel. X
Use : or9 to select the Head-up Head-up
display display submenu.
X Press ato confirm.
X Press :or9 to select the Brightness
Brightness
function.
X Press the abutton to change the setting.
X Press :or9 to adjust the brightness
to a level from Level
Level+5
+5(bright) to Level
Level-5
-5
(dark).
X Press the aor% button to save the
setting.
Light submenu Switching the Intelligent Light System
on/off
X Press òon the steering wheel to open the
menu list.
X Press :or9 on the steering wheel to
select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Press :or9 to select the Lights
Lights
submenu.
X Press ato confirm.
X Press :or9 to select the Intelli‐ Intelli‐
gent Light System
gent Light System function.
If the Intelligent Light System
Intelligent Light System function
has been switched on, the cone of light and
the L symbol are shown in white and yel-
low respectively in the multifunction display.
X Press the abutton to change the setting.
If you switch on the Intelligent
IntelligentLight
LightSys‐
Sys‐
tem
tem function, the following functions are activa-
ted:
R Motorway mode
R Active light function
R Cornering light function
R Extended range foglamps
If you set the dipped-beam headlamps for driv-
ing on the right/left, the multifunction display
shows the Inactive Inactive for
forleft-side
left-side traffic
traffic
or Inactive for right-side traffic
Inactive for right-side traffic dis-
play message in the Lights
Lightssubmenu instead of
the Intelligent Light System
Intelligent Light System function
(Y page 236). This display message will only
appear if the setting for driving on the left/right is set opposite to your vehicle's country version.
Further information on the Intelligent Light Sys-
tem (Y page 117). Menus and submenus
235On-board computer and displays Z
Settings in the bottom bar of the cli-
mate control menu Activating/deactivating cooling with air
dehumidification
X Call up the climate control menu
(Y page 288).
X Slide 6the controller repeatedly until the
bottom bar is activated.
X To select O OA/C
A/C: turn and press the control-
ler.
X Switch cooling with air dehumidification on
O or off ª.
i The current status of the cooling function is
displayed in the climate control bar: A/C ON
– activated, A/C OFF – deactivated.
i Deactivating the cooling with air dehumidi-
fication function reduces fuel consumption.
Synchronising the climate control set-
tings
Use O
O Sync. Sync. (synchronisation) to select the
climate control setting for all zones together O
or separately ª.
X Call up the climate control menu
(Y page 288).
X Slide 6the controller repeatedly until the
bottom bar is activated.
X To select O
O Sync. Sync.: turn and press the con-
troller.
X Switch the synchronisation function on Oor
off ª.
For further information on synchronising cli-
mate control settings, see (Y page 128).Navigation mode
Important safety notes G
WARNING
Operating the integrated information systems and communications equipment in the vehicle
while driving will distract you from traffic con-
ditions. You could then lose control of the
vehicle. There is a risk of an accident.
Only operate these devices if road traffic con-
ditions permit. If you are unsure about the surrounding conditions, pull over to a safe
location and make entries only while the vehi-
cle is stationary.
You must observe the legal requirements for the country in which you are currently driving whenoperating the navigation system.
General notes Correct functioning of the navigation system
depends, amongst other things, on GPS recep-
tion. In certain situations, GPS reception may be
impaired, there may be interference or there
may be no reception at all, e.g. in tunnels or
multi-storey car parks.
Audio 20 is equipped with Garmin ®
MAP PILOT
(see the manufacturer's operating instructions).
The Garmin ®
MAP PILOT operating instructions
are stored on the SD card as a PDF file. The SD card box contains a quick guide.
The following descriptions apply to navigation
with COMAND Online. Further information can
be found in the Digital Owner's Manual.
Selecting a route type and route options Multimedia system:
X Select Navi
NaviQNavigation Navigation.
X Select Options OptionsQRoute settings Route settings.
i If route guidance is active, first slide
6the
controller and show the menu.
X Select a route type.
Notes for route types:
R Eco route
Eco route
Calculates an economical route.
R Dynamic route Dynamic route
Traffic reports on the route for the route guid-
ance are taken into account.
R Calculate alternative routes Calculate alternative routes
Different routes are being calculated. Instead
of Start Start, select the Continue
Continuemenu item.
X To avoid/use route options: selectAvoid
Avoid
options
options.
X Select a route option.
Notes for route options:
R Use toll roads
Use toll roads Operating system
289Multimedia system Z