Headlamps
Adding flui dtocleaning system .....309
Cleaning system (function) ............120
Cleaning system (notes) ................378
Fogging up ..................................... 122
see Automatic headlamp mode
Head restraints
Adjusting ....................................... 100
Adjusting (electrically). ..................101
Adjusting (rear) .............................. 101
Installing/removing (rear) ..............102
Luxury ............................................ 101
Heating
see Climate control
High-beam headlamps
Display message ............................ 246
Switching Adaptive Highbeam
Assist on/off ................................. 122
Switching on/off ........................... 119
Hill start assist .................................. 150
HOLD function Display message ............................ 252
Function/notes ............................. 186
Hood
Closing .......................................... .307
Display message ............................ 261
Important safety notes ..................306
Opening ......................................... 306
Hydroplaning ..................................... 174I
Ignitio nlock
see Key positions
Immobilizer .......................................... 73
Indicator lamps see Warning and indicator lamps
Instrument cluster
Overview .................................. 31, 219
Settings ......................................... 229
Warning and indicator
lamps ...................................... .32, 264
Instrument cluster lighting ..............230
Interior lighting ................................. 123
Automatic control ..........................123
Delayeds witch-off (on-board
computer) ...................................... 232
Emergency lighting ........................124Manual control ............................... 124
Overview
........................................ 123
Reading lamp ................................. 123
Setting the brightness of the
ambient lighting (on-board
computer) ...................................... 231
Setting the brightness of the
display/switch (on-board
computer) ...................................... 230
Setting the color of the ambient
lighting (on-board computer) .........231 J
Jack Storage location ............................ 320
Using ............................................. 359
Jump starting (engine) ......................326 K
KEYLESS-GO Convenience closing feature ............90
Display message ............................ 262
Locking ............................................ 77
Start/Stop button .......................... 147
Starting the engine ........................149
Unlocking ......................................... 77
Keyp ositions
KEYLESS-GO .................................. 147
SmartKey ....................................... 147
Kickdown
Driving tips .................................... 159
Manual drive program ....................163
Kne ebag.............................................. 45 L
Lamps see Warning and indicator lamps
Lane Keepin gAssist
Activating/deactivating .................229
Display message ............................ 253
Function/informatio n.................... 209
Lane Tracking package .....................207
Lap time (RACETIMER) ......................235
LATCH-type (ISOFIX) child seat
anchors ................................................ 63 Index
11
The exterior lighting (except the parking/
standin
glamps) switches off automatically if
you:
R remove the SmartKey from the ignition lock
R open the driver's door with the SmartKey
in position 0.
Automatic headlam pmode G
WARNING
When the light switch is set to 000D,the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is arisk of an
accident.
In such situations, turn the light switch to
001D.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times. 00010018
Left-hand standin glamps
0002000A Right-hand standin glamps
00030008 Parking lamps, license plate and
instrument cluster lighting
0005000D Automatic headlamp mode,
controlled by the light sensor
0019001D Low-beam/high-beam headlamps 000D
is the favored light switch setting. The
light setting is automatically selected
accordin gtothe brightness of the ambient
light (exception: poor visibility due to weather
conditions such as fog, snow or spray):
R SmartKey in position 1in the ignition lock:
the parking lamps are switched on or off
automatically depending on the brightness
of the ambient light.
R With the engine running: if you have
activated the daytime runnin glamps
function via the on-board computer ,the
daytime runnin glamps or the low-beam
headlamps and parking lamps are switched
on or off automatically depending on the
brightness of the ambient light.
X To switch on automatic headlamp
mode: turn the light switch to 000D.
Only for Canada:
The daytime runnin glamps improve the
visibility of your vehicle during the day. The
daytime runnin glamps function is required by
law in Canada. It cannot therefore be
deactivated.
When the engine is runnin gand the vehicle is
stationary: if you move the selector lever from
ad rive position to P,the daytime running
lamps/low-beam headlamps go out after
three minutes.
When the engine is running, the vehicle is
stationary and in high ambient light: if you
turn the light switch to 0008,the daytime
runnin glamps and parking lamps switch on.
If the engine is runnin gand you turn the light
switch to 001D,the manual settings take
precedenc eover the daytime runnin glamps.
USA only:
The daytime runnin glamps improve the
visibility of your vehicle during the day. To do
this, the daytime runnin glamps function must
be switched on using the on-board computer
(Y page 230).
If the engine is runnin gand you turn the light
switch to 0008or001D,t he manual settings Exterior lighting
117Lights and windshield wipers Z
take precedence ove
rthe daytime running
lamps.
Low-beam headlamps G
WARNING
When the ligh tswitc hiss et to 000D,t helow-
beam headlamp smay not be switche don
automatically if there is fog, snow or other
causes of poor visibility due to th eweather
conditions such as spray. Ther eisarisk of an
accident.
In such situations, tur nthe light switch to
001D. 00010018
Left-hand standing lamps
0002000A Right-hand standing lamps
00030008 Parking lamps, license plate and
instrumentc luster lighting
0005000D Automatic headlamp mode,
controlled by the light sensor
0019001D Low-beam/high-beam headlamps
Even if the light sensor does not detect that
it is dark ,the parking lamps and low-beam
headlamps switc honwhen the ignition is
switched on and the light switc hisset to the
001D position. This is aparticularly useful
function in the even tofrain and fog.
X To switch on th elow-beam headlamps:
tur nthe SmartKey in the ignition lock to
position 2or start the engine.
X Turn the light switc hto001D.
The green 001Dindicator lamp in the
instrumen tcluster light sup. Parking lamps
!
If the battery has been excessively
discharged, the parking lamps or standing
lamps are automatically switched off to
enable the nex tengine start. Alway spark
your vehicl esafelya nd sufficiently lit
according to lega lstandards .Avoid the
continuou suse of the 0008parking lamps
for severa lhours .Ifpossible, switch on the
000A right or the 0018left standin glamp. 00010018
Left-hand standin glamps
0002000A Right-hand standin glamps
00030008 Parking lamps, license plate and
instrument cluster lighting
0005000D Automatic headlamp mode,
controlled by the light sensor
0019001D Low-beam/high-beam headlamps
X To switch on: turn the light switch to
0008.
The green 0008indicator lamp in the
instrument cluster lights up. 118
Exterior lightingLights and windshiel
dwipers
You can use this function to set the
headlamps to change betwee
nlow beam and
high beam automatically. The system
recognizes vehicles with their lights on, either
approaching 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
distance to the other vehicle. Once the
system no longer detect sany other vehicles,
it reactivates the high-beam headlamps.
The system's optical sensor is located behind
the windshield near the overhead control
panel.
Switching Adaptive Highbeam Assist
on/off 001A
High-beam headlamps
0010 Turn signal, right
0024 High-beam flasher
0021 Turn signal, left
X To switch on: turn the light switch to
000D.
X Press the combination switch beyond the
pressure point in the direction of
arrow 001A.
The 0010 indicator lamp in the
multifunction display lights up if it is dark
and the light sensor activates the low-beam
headlamps.
If you are driving at speeds above
approximately 28 mph (45 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
approximately 35 mph (55 km/h) and no
other road users have been detected:
The high-beam headlamps are switched on
automatically. The
0015indicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below
approximately 30 mph (45 km/h) or other
road users have been detected or the roads
are adequately lit:
The high-beam headlamps are switched off
automatically. The 0015indicator lamp in
the instrument cluster goes out. The 0010
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 0010 indicator lamp in the instrument
cluster goes out. Headlamps fogged up on the inside
The headlamps may fog up on the inside if
there is high atmospheric humidity.
X Switch on the light and drive off.
The level of moisture diminishes,
depending on the length of the journey and
the weather conditions (humidity and
temperature).
If the level of moisture does not diminish:
X Have the headlamps checked at aqualified
specialist workshop. 122
Exterior lightingLights and windshield wipers
USA only
001A
Sets the temperature, left (Y page 138)
0010 Defrosts the windshield( Ypage 139)
0024 Switches maximum cooling on/off (Y page 139)
0021 Switches cooling with air dehumidification on/off (Y page 136)
001E Switches the rear window defroster on/off (Y page 140)
0025 Sets the temperature, right (Y page 138)
0009 Activates/deactivates air-recirculation mode (Y page 141)
0016 Sets the air distribution (Y page 138)
001D Increases the airflow (Y page 139)
000F Reduces the airflow (Y page 139)
0004 Switches climate control on/off (Y page 135)
000B Sets climate control to automatic (Y page 137)Information about using dual-zone
automatic climate control
Automatic climate control The following contains notes and
recommendations on optimum use of dual-
zone automatic climate control.
R
Activate climate control using the 000Dand
000C buttons. The indicator lamps above
the 000D and000C buttons light up.
R Set the temperature to 72 ‡(22 †). R
Only use the "Windshield defrosting"
function briefly until the windshieldisc lear
again.
R Only use air-recirculation mode briefly,e .g.
if there are unpleasant outside odors or
when in atunnel. The windows could
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the
temperature settings on the driver's side
for the front-passenger side as well.T he132
Overview of climate control systemsClimatec
ontrol
Information abou
tusing 3-zone
automatic climate control
Automatic climate control The 3-zone automatic climate control is only
available on vehicles for Canada.
The following contains instructions and
recommendations to enable you to get the
most out of your automatic climate control.
R Activate climate control using the 000Dand
000C buttons. The indicato rlamps above
the 000D and000C buttons light up.
R In automatic mode, you can also use the
0011 buttontos etac limate mode
(FOCUS/MEDIUM/DIFFUSE). The
MEDIUM leve lisrecommended.
R Set th etem peratur etof72‡ (22 †).
R Only use th e"Windshield defrosting"
function briefly until th ewindshield is clear
again.
R Only use air-recirculation mod ebriefly, e.g.
if there are unpleasan toutside odor sor
when in atunnel. The windows could
otherwise fog up, since no fresh air is drawn
int ot he vehicl einair-recirculation mode.
R Use th eZON Efunction to adopt the
temperature setting sonthedriver's side
for the front-passenger side and the rear
compartment as well. The indicato rlamp
above the 0010button 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 deactivated with the ignition switched
off.
R Vehicles with COMAND Multimedia-
System: if you change the settings of the
climate control system, the climate status
displaya ppears for approximately three
seconds at the bottom of the screen in the
COMAND display. See also the separate
COMAND operating instructions. You will
see the current settings of the various
climate control functions. ECO start/stop function During automatic engine switch-off,t
he ECO
start/stop function only operates at a
reduced capacity. If you require the full
climate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (Y page 152). Operating the climate control
systems Switching climate control on/off
Points to observe before use 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
Activate climate control primarily using
the 000D button (Y page 137).
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 147).
X To switch on: press the000Dbutton on
the control panel for the climate control.
The indicator lamp in the 000Dbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the 0007button.
The indicator lamp in the 0007button goes
out. The previously selected settings are
restored.
X To switch off: press the0007button.
The indicator lamp in the 0007button lights
up. Operating the climate control systems
135Climatecontrol
Activating/deactivating cooling with
air dehumidification
Point stoo bserve befor euse If you deactivat
ethe "Cooling wit hair-
dehumidification "function ,the air inside the
vehicl ewill no tbec ooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
deactivat ethe cooling with air-
dehumidification function only briefly.
The cooling with air dehumidification function
is only available when the engin eisrunning.
The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not asign that ther eisa
malfunction.
Activating/deactivating X
To activate: press the000Cbutton.
The indicator lamp in the 000Cbutton lights
up.
i When the "Cooling with air
dehumidification "function is activated,
one of the indicator lamps on the auxiliary
heating button will light up on vehicles with
auxiliary heating.
X To deactivate: press the000Cbutton.
The indicator lamp in the 000Cbutton goes
out. The "Cooling with air dehumidification"
function has adelayed switch-off feature. 136
Operating thec
limatecontrol systemsClimatecontrol
Problems with the "Cooling with air dehumidification" function
Problem Possible causes/consequences and
000B Solutions
The indicator lamp in
the
000C button
flashes three times or
remains off. The
"Cooling with air
dehumidification"
function cannot be
switched on. Cooling with air dehumidification has been deactivated due to a
malfunction.
X
Visit aqualified specialist workshop. Setting climate control to automatic
Points to observe before use In automatic mode, the set temperature is
maintained automatically at aconstant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
The automatic mode functions optimally
when the "Cooling with air dehumidification"
function is activated. If necessary, cooling
with air dehumidification can be deactivated.
If you deactivate the "Cooling with air-
dehumidification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
deactivate the cooling with air-
dehumidification function only briefly.
Activating/switching X
Turn the SmartKey to position 2in the
ignition lock (Y page 147).
X Set the desired temperature.
X To activate: press the000Dbutton.
The indicator lamp in the 000Dbutton lights
up. Automatic air distribution and airflow
are activated.
i 3-zone automatic climate control: when
automatic mode is activated, you can
select aclimate mode (Y page 137). X
To switch to manualm ode:press the
000F button.
or
X Press the 0004or000B button.
The indicator lamp in the 000Dbutton goes
out. Adjusting the climate mode settings
The "Set climate mode" function is only
available with 3-zone automatic climate
control.
You can select the following climate mode
settings in automatic mode:
FOCUS high airflow that is set slightly cooler
MEDIUM medium airflow, standard setting
DIFFUSE low airflow that is set slightly warmer and with less draft
X Turn the SmartKey to position 2in the
ignition lock (Y page 147).
X Press the 000Dbutton.
X Press the 0011button repeatedly until the
desired climate mode appears in the
display. Operating the climate control systems
137Climate control