Adaptive Highbeam Assist
General notes You can use this function to set the head-
lamps to change between low beam and high
beam automatically. The system recognizes
vehicles with their lights on, either approach-
ing from the opposite direction or traveling in front of your vehicle, and consequently
switches the headlamps from high beam to
low beam.
The system automatically adapts the low-
beam headlamp range depending on the dis-
tance to the other vehicle. Once the system
no longer detects any other vehicles, it reac-
tivates the high-beam headlamps.
The system's optical sensor is located behind
the windshield near the overhead control
panel.
Important safety notes G
WARNING
Adaptive Highbeam Assist does not recognize road users:
R who have no lights, e.g. pedestrians
R who have poor lighting, e.g. cyclists
R whose lighting is blocked, e.g. by a barrier
In very rare cases, Adaptive Highbeam Assist
may fail to recognize other road users that have lights, or may recognize them too late. In
this or similar situations, the automatic high-
beam headlamps will not be deactivated or
activated regardless. There is a risk of an acci-
dent.
Always carefully observe the traffic conditions and switch off the high-beam headlamps in
good time.
Adaptive Highbeam Assist cannot take into
account road, weather or traffic conditions.
Adaptive Highbeam Assist is only an aid. You
are responsible for adjusting the vehicle's
lighting to the prevailing light, visibility and
traffic conditions.
In particular, the detection of obstacles can
be restricted if there is:
R poor visibility, e.g. due to fog, heavy rain or
snow
R dirt on the sensors or the sensors are
obscured
Switching Adaptive Highbeam Assist
on/off 0043
High-beam headlamps
0044 Turn signal, right
0087 High-beam flasher
0085 Turn signal, left
X To switch on: turn the light switch to 0058.
X Press the combination switch beyond the
pressure point in the direction of arrow 0043.
The 00CE indicator lamp in the multifunc-
tion display lights up when it is dark and the 126
Exterior lightingLights and windshield wipers
light sensor activates the low-beam head-
lamps.
If you are driving at speeds above approx-
imately 16 mph (25 km/h):
The headlamp range is set automatically
depending on the distance between the
vehicle and other road users.
If you are driving at speeds above approx-
imately 19 mph (30 km/h) and no other
road users have been detected:
The high-beam headlamps are switched on
automatically. The 0057indicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below approx-
imately 16 mph (25 km/h) or other road
users have been detected or the roads are adequately lit:
The high-beam headlamps are switched off
automatically. The 0057indicator lamp in
the instrument cluster goes out. The 00CE
indicator lamp in the multifunction display
remains lit.
X To switch off: move the combination
switch back to its normal position or move the light switch to another position.
The 00CE indicator lamp in the multifunc-
tion display goes out. Headlamps fogged up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This moisture does not affect the functionality of
the headlamp. Interior lighting
Overview of interior lighting
Overhead control panel
0043
003D To switch the left-hand front reading
lamp on/off
0044 004A To switch the front interior lighting
on
0087 0043 To switch the on/off
0085 0033 To switch the front interior lighting/
automatic interior lighting control off
0083 003D To switch the right-hand front read-
ing lamp on/off
0084 To switch the automatic interior lighting
control on Interior lighting control
General notes In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
except for when the SmartKey is in position 2
in the ignition lock.
The color and brightness of the ambient light- ing can be adjusted using the on-board com-
puter (Y page 278). Interior lighting
127Lights and windshield wipers Z
0087
To direct the airflow through the rear air vents
0085 To direct the airflow through the footwell vents Optimum use of dual-zone automatic
climate control
The following contains notes and recommen-
dations on optimum use of the dual-zone
automatic climate control.
R Activate climate control using the 0058and
005A/0056 buttons. The indicator lamps in
the 0058 and005A/0056 buttons light up.
R Set the temperature to 72 ‡ (22 †).
R Only use the "Windshield defrosting" func-
tion briefly until the windshield is clear
again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could oth-
erwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side as well. The indi-
cator lamp above the 00D6button goes
out.
R Vehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for approx-
imately three seconds at the bottom of the
screen in the COMAND display. See also
the separate COMAND operating instruc-
tions. You will see the current settings of
the various climate control functions.
During automatic engine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (Y page 163). Overview of climate control systems
141Climate control
Control panel for 3-zone automatic climate control
USA only
Front control panel
0043 To set the temperature, left (Y page 147)
0044 To defrost the windshield (Y page 149)
0087 To switch maximum cooling on/off (Y page 149)
0085 To switch cooling with air dehumidification on/off (Y page 144)
0083 To switch the rear window defroster on/off (Y page 150)
0084 To set the temperature, right (Y page 147)
006B To switch the ZONE function on/off (Y page 149)
006C To switch climate control on/off (Y page 144)
006D To set the air distribution (Y page 148)
006E To increase the airflow (Y page 148)
006F To reduce the airflow (Y page 148)
0070 Display
0071 To adjust the climate mode settings (Y page 147)
0072 To activate/deactivate air-recirculation mode (Y page 151)
0073 To set climate control to automatic (Y page 146)
Rear control panel
0074 To increase the airflow (Y page 148)
0075 To set the temperature (Y page 147)
0076 To set rear-compartment climate control to automatic (Y page 146)
0077 To direct the airflow through the rear air vents (Y page 148)
0078 To direct the airflow through the footwell vents (Y page 148)
0079 To switch rear-compartment climate control on/off (Y page 144)
007A To reduce the airflow (Y page 148)142
Overview of climate control systemsClimate control
Canada only
Front control panel
0043 To set the temperature, left (Y page 147)
0044 To defrost the windshield (Y page 149)
0087 To switch the residual heat function on/off (Y page 151)
0085 To switch cooling with air dehumidification on/off (Y page 144)
0083 To switch the rear window defroster on/off (Y page 150)
0084 To set the temperature, right (Y page 147)
006B To switch the ZONE function on/off (Y page 149)
006C To switch climate control on/off (Y page 144)
006D To set the air distribution (Y page 148)
006E To increase the airflow (Y page 148)
006F To reduce the airflow (Y page 148)
0070 Display
0071 To adjust the climate mode settings (Y page 147)
0072 To activate/deactivate air-recirculation mode (Y page 151)
0073 To set climate control to automatic (Y page 146)
Rear control panel
0074 To increase the airflow (Y page 148)
0075 To set the temperature (Y page 147)
0076 To set rear-compartment climate control to automatic (Y page 146)
0077 To direct the airflow through the rear air vents (Y page 148)
0078 To direct the airflow through the footwell vents (Y page 148)
0079 To switch rear-compartment climate control on/off (Y page 144)
007A To reduce the airflow (Y page 148) Overview of climate control systems
143Climate control
Optimum use of 3-zone automatic cli-
mate control
The following contains instructions and rec-
ommendations to enable you to get the most
out of your 3-zone automatic climate control.
R Activate climate control using the 0058and
005A buttons. The indicator lamps above
the 0058 and005A buttons light up.
R In automatic mode, you can also use the
00F0 button to set a climate mode
(FOCUS/MEDIUM/DIFFUSE). The
MEDIUM level is recommended.
R Set the temperature to 72 ‡ (22 †).
R Only use the "Windshield defrosting" func-
tion briefly until the windshield is clear
again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could oth-
erwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side and the rear com- partment as well. The indicator lamp above
the 00D6 button goes out.
R Use the residual heat function if you want to
heat or ventilate the vehicle interior when
the ignition is switched off. The residual
heat function can only be activated or deac- tivated with the ignition switched off.
R Vehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for approx-
imately three seconds at the bottom of the
screen in the COMAND display. See also
the separate COMAND operating instruc-
tions. You will see the current settings of
the various climate control functions.
During automatic engine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO button (Y page 163). Operating the climate control sys-
tems
Switching climate control on/off
General notes When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could fog up.
Therefore, switch off climate control only
briefly
i Switch on climate control primarily using
the 0058 button (Y page 146).
In the rear compartment, you can also switch
climate control on and off using the 0058and
0078 buttons.
Activating/deactivating X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 157).
X To activate: press the0058button.
The indicator lamp in the 0058button lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the 0078button.
The indicator lamp in the 0078button goes
out. The previously selected settings are
restored.
X To deactivate: press the0078button.
The indicator lamp in the 0078button lights
up. Activating/deactivating cooling with
air dehumidification
General notes If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi-
cle will not be cooled. The air inside the vehi-
cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore, only deactivate the "Cooling with air-dehumidifi-
cation" function briefly. 144
Operating the climate control systemsClimate control
Setting the air distribution
Air distribution settings Front control panel
009C
Directs the airflow through the center
vents
009B Directs air through the footwell air
vents
009F Directs the airflow through the center
and footwell vents
0061 Directs air through the defroster vents
0087 Directs the airflow through the
defroster and center vents (Canada
only)
0086 Directs air through the defroster and
footwell vents
008F Directs the airflow through the
defroster, center and footwell air vents
(Canada only)
Rear control panel
0099 Directs the airflow through the rear
center and rear side air vents
009B Directs air through the footwell air
vents
i Using the rear control panel, you can also
activate both air distribution positions
simultaneously. In order to do this, press
both air distribution buttons. The air is then routed through all rear air vents.
i Regardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air vents can only be
closed when the controls on the side air
vents are turned downwards. Adjusting X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 157).
X Press the 008Fbutton repeatedly until the
desired symbol appears in the display. Setting the airflow
X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 157).
X To increase: press the0097button.
X To reduce: press the0095button.
i You can use 3-zone automatic climate
control to set the airflow in the rear com-
partment separately. 148
Operating the climate control systemsClimate control
G
WARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or parts of the engine that heat up. There is a risk
of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials in
the engine compartment or in the exhaust
system.
! Do not depress the accelerator when
starting the engine.
General notes i
Vehicles with a gasoline engine:
the
catalytic converter is preheated for up to
30 seconds after a cold start. The sound of the engine may change during this time.
Automatic transmission X
Shift the transmission to position P
(Y page 168).
The transmission position display in the
multifunction display shows
P (Y page 168).
i You can start the engine in transmission
position Pand N.
Starting procedure with the SmartKey X
To start a gasoline engine: turn the
SmartKey to position 3in the ignition lock
(Y page 157) and release it as soon as the
engine is running.
X To start a diesel engine: turn the Smart-
Key to position 2in the ignition lock
(Y page 157).
The 0028 preglow indicator lamp in the
instrument cluster lights up.
X When the 0028preglow indicator lamp
goes out, turn the SmartKey to position 3
(Y page 157) and release it as soon as the
engine is running. i
You can start the engine without preglow
if the engine is warm.
Using KEYLESS-GO to start the engine X
Depress the brake pedal and keep it
depressed.
X To start a gasoline engine: press the
Start/Stop button (Y page 158) once.
The engine starts.
X To start a diesel engine: press the Start/
Stop button once (Y page 158).
Preglow is activated and the engine starts.
i The Start/Stop button can be used to
start the vehicle 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 vehi-
cle. This mode for starting the engine oper-
ates independently of the ECO start/stop
automatic engine start function. Pulling away
Automatic transmission G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate.
X Depress the brake pedal and keep it
depressed.
X Shift the transmission to position Dor R
(Y page 168).
X Release the brake pedal.
X Carefully depress the accelerator pedal.
The electric parking brake (Y page 184) is
automatically released. 160
DrivingDriving and parking