
Exterior lights ................................ 279
Gear or selector lever .................... 280
Interior........................................... 280
Matte finish ................................... 277
Notes ............................................. 275
Paint .............................................. 277
Plastic trim .................................... 280
Power washe r................................ 277
Rear view camera .......................... 279
Roof lining ...................................... 282
Seat belt ........................................ 282
Seat cove r..................................... 281
Sensors ......................................... 279
Steering wheel ............................... 280
Trim pieces .................................... 281
Washing by hand ........................... 276
Wheels ........................................... 278
Windows ........................................ 278
Wiper blades .................................. 278
Wooden trim .................................. 281
Cargo compartment cover
Important safety notes .................. 256
Installing/removing ....................... 256
Notes/how to use ......................... 256
Cargo compartment enlargement ... 252
Cargo compartment floor
Height adjustment ......................... 258
Important safety notes .................. 257
Opening/closing ............................ 258
Stowage well (under )..................... 257
Cargo net
Attaching ....................................... 257
Important safety information ......... 256
Cargo tie down rings ......................... 255
CD player/CD changer (on-board
computer) .......................................... 199
Center console
Lower section .................................. 33
Upper section .................................. 32
Central locking
Automatic locking (on-board com-
puter) ............................................. 205
Locking/unlocking (SmartKey )........ 70
Changing bulbs
High-beam headlamp s................... 111
License plate lighting ..................... 113
Low-beam headlamp s.................... 111
Rear fog lamp ................................ 112 Reversing lamps ............................ 112
Turn signals (front) ......................... 112
Child
Restraint system .............................. 55
Child seat
Forward-facing restraint system ...... 58
LATCH-type (ISOFIX) child seat
anchors ............................................ 56
On the front-passenger sea t............ 58
Rearward-facing restraint system .... 58
Top Tether ....................................... 57
Child-proof locks
Important safety notes .................... 59
Rear doors ....................................... 59
Children
Special seat belt retractor ............... 55
Cigarette lighter ................................ 262
Cleaning
Mirror turn signal ........................... 279
Climate control
Air-conditioning system ................. 121
Automatic climate control (dual-
zone) .............................................. 123
Controlling automaticall y............... 126
Cooling with air dehumidification .. 124
Defrosting the window s................. 128
Defrosting the windshield .............. 128
General notes ................................ 120
Indicator lamp ................................ 126
Information about using auto-
matic climate control ..................... 123
Notes on using the air-condition-
ing system ..................................... 121
Overview of systems ...................... 120
Problem with the rear window
defroster ........................................ 130
Problems with cooling with air
dehumidification ............................ 126
Refrigerant ..................................... 340
Refrigerant filling capacity ............. 340
Setting the air distribution ............. 127
Setting the air vents ...................... 131
Setting the airflow ......................... 127
Setting the temperature ................ 126
Switching air-recirculation modeon/of f............................................ 130
Switching on/of f........................... 124
Switching residual heat on/off ...... 130
6Index

Indicator and warning lampsCOLLISION PREVENTION ASSIST
PLUS .............................................. 246
Indicator lamps
see Warning and indicator lamps
Instrument cluster
Overview .......................................... 29
Settings ........................................ .204
Warning and indicator lamps ........... 30
Instrument cluster lighting .............. 192
Interior lighting
Control .......................................... .109
Emergency lighting ........................ 109
Overview ........................................ 108
Reading lamp ................................. 108
J
Jack
Storage location ............................ 284
Using ............................................. 323
Jump starting (engine) ......................293
K
Key positions
Start/Stop button .......................... 135
KEYLESS-GO
Convenience closing feature ............ 83
Deactivation ..................................... 71
Locking ............................................ 71
Unlocking ......................................... 71
Kickdown
Driving tips ................................... .146
Manual drive program .................... 149
Knee bag .............................................. 46
L
Lamps
see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 203
Display message ............................ 226
Function/informatio n.................... 187
Lane Tracking package ..................... 185
LATCH-type (ISOFIX) child seat
anchors ................................................ 56 License plate lamp
Changing bulb s.............................. 113
License plate lamp (display mes-
sage) ................................................... 220
Light function, active
Display message ............................ 221
Light sensor (display message) ....... 222
Lights
Adaptive Highbeam Assist ............. 107
Automatic headlamp mod e............ 104
Fog lamps ...................................... 105
Fogged up headlamp s.................... 108
Hazard warning lamps ................... 107
High beam flashe r.......................... 107
High-beam headlamp s................... 106
Light switch ................................... 104
Low-beam headlamp s.................... 105
Parking lamps ................................ 106
Rear fog lamp ................................ 105
Setting exterior lighting ................. 104
Standing lamps .............................. 106
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 205
Turn signals ................................... 106
LIM indicator lamp
DISTRONIC PLUS ........................... 164
Loading guidelines ............................ 248
Locking
see Central locking
Locking (doors)
Automatic ........................................ 78
Emergency locking ........................... 79
From inside (central locking but-
ton) .................................................. 78
Locking centrally
see Central locking
Locking verification signal (on-
board computer) ............................... 205
Low-beam headlamps
Changing bulb s.............................. 111
Display message ............................ 219
Switching on/of f........................... 105
Lumbar support
Adjusting the 4-way lumbar sup-
port .................................................. 95
Index11

The indicator lamps display the status of the
front-passenger front air bag. RPASSENGER AIR BAG OFF lights up: the
front-passenger front air bag is deactiva-
ted. It will then not be deployed in the event
of an accident.
R PASSENGER AIR BAG ON lights up: the
front-passenger front air bag is enabled. If,
in the event of an accident, all deployment
criteria are met, the front-passenger front
air bag is deployed.
If the status of the front-passenger front air
bag changes while the vehicle is in motion, an
air bag display message appears in the instru-
ment cluster ( Ypage 218). When the front-
passenger seat is occupied, always pay atten-
tion to the PASSENGER AIR BAG ON and
PASSENGER AIR BAG OFF indicator lamps. Be
aware of the status of the front-passenger
front air bag both before and during the jour- ney.
GWARNING
If the PASSENGER AIR BAG OFF indicator
lamp is lit, the front-passenger front air bag is disabled. It will not be deployed in the event of
an accident and cannot perform its intended
protective function. A person in the front-
passenger seat could then, for example, come
into contact with the vehicle's interior, espe-
cially if the person is sitting too close to the
dashboard. This poses an increased risk of
injury or even fatal injury.
When the front-passenger seat is occupied,
always ensure that:
R the classification of the person in the front-
passenger seat is correct and the front-
passenger front air bag is enabled or disa-
bled in accordance with the person in the
front-passenger seat
R the front-passenger seat has been moved
back as far back as possible.
R the person is seated correctly.
Make sure, both before and during the jour-
ney, that the status of the front-passenger
front air bag is correct.
GWARNING
If you secure a child in a rearward-facing child
restraint system on the front-passenger seat
and the PASSENGER AIR BAG ON indicator
lamp is lit up, the front-passenger front air bag may deploy in an accident. The child could be
struck by the air bag. This poses an increased risk of injury or even fatal injury.
Make sure that the front-passenger front air
bag has been disabled. The PASSENGER AIR
BAG OFF indicator lamp must be lit.
If the PASSENGER AIR BAG OFF indicator
lamp remains off and/or the PASSENGER AIR
BAG ON indicator lamp lights up, do not install
a rearward-facing child restraint system on
the front-passenger seat. You can find more
information on OCS under "Problems with the Occupant Classification System"( Y page 51).
GWARNING
If you secure a child in a forward-facing child
restraint system on the front-passenger seat
and you position the front-passenger seat too
close to the dashboard, in the event of an
accident, the child could:
R come into contact with the vehicle's inte-
rior if the PASSENGER AIR BAG OFF indi-
cator lamp is lit, for example
R be struck by the air bag if the PASSENGER
AIR BAG ON is lit up
This poses an increased risk of injury or even fatal injury.
Move the front-passenger seat as far back as
possible. Always make sure that the shoulder belt strap is correctly routed from the vehicle
belt outlet to the shoulder belt guide on the
child restraint system. The shoulder belt strap
must be routed forwards and downwards
from the vehicle belt outlet. If necessary,
adjust the vehicle belt outlet and the front-
passenger seat accordingly. Always observe
the child restraint system manufacturer's
installation instructions.
48Occupant safety
Safety

Useful information............................104
Exterior lighting ................................ 104
Interior lighting ................................. 108
Replacing bulbs ................................. 109
Windshield wipers ............................114
103
Lights and windshield wipers

In very rare cases, Adaptive Highbeam Assistmay 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
X To switch on: turn the light switch to Ã.
X Press the combination switch beyond the
pressure point in the direction of arrow :.
The _ indicator lamp in the multifunc-
tion display lights up when it is dark and the
light sensor activates the low-beam head-
lamps.
If you are driving at speeds above approx-
imately 19 mph (30 km/h) and no other
road users are recognized:
The high-beam headlamps are switched on
automatically. The Kindicator 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 Kindicator lamp in the instrument cluster goes out. The
_
indicator lamp in the multifunction display
remains lit.
X To deactivate: move the combination
switch back to its normal position.The _ 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
Front overhead control panel
:p Switches the left-hand front reading
lamp on/off
;c Switches the front interior lighting
on
=v Switches the rear interior lighting
on/off
?| Switches the front interior lighting/
automatic interior lighting control off
Ap Switches the right-hand front read-
ing lamp on/off
BSwitches the automatic interior lighting
control on
108Interior lighting
Lights and windshield wipers

Control panel in the grab handle in the
rear compartment
:To switch the reading lamp on/off
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
unless the SmartKey is in position 2in the
ignition lock.
The color and brightness for the ambient
lighting may be set using COMAND or Audio
20 (see the separate operating instructions).
Automatic interior lighting control
X To switch on: set the switch to center
position B.
X To switch off: set the switch to the |
position.
The interior lighting automatically switches
on if you: R unlock the vehicle
R open a door
R remove the SmartKey from the ignition
lock.
The interior light is activated for a short while when the SmartKey is removed from the igni-
tion lock. This delayed switch-off can be
adjusted using COMAND or Audio 20 (see the separate Operator's Manual).
Manual interior lighting control
X To switch the front interior lighting on:
set the switch to the cposition.
X To switch the front interior lighting off:
set the switch to the |position or (if the
door is closed) to the center position.
X To switch the rear interior lighting on/
off: press the ubutton.
X To switch the reading lamps on/off:
press the pbutton.
Crash-responsive emergency lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
X To switch off the crash-responsive
emergency lighting: press the hazard
warning lamp button.
or X Lock and then unlock the vehicle using the
SmartKey.
Replacing bulbs
Important safety notes
GWARNING
Bulbs, lamps and connectors can get very hotwhen operating. If you change a bulb, you
could burn yourself on these components.
There is a risk of injury.
Allow these components to cool down beforechanging a bulb.
Do not use a bulb that has been dropped or if
its glass tube has been scratched.
The bulb may explode if: R you touch it
R it is hot
R you drop it
R you scratch it
Only operate bulbs in enclosed lamps
designed for that purpose. Only install spare
Replacing bulbs109
Lights and windshield wipers
Z

RUse 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 If you change the settings of the climate
control system, the climate status display
appears for approximately three seconds
at the bottom of the screen in the Audio/
COMAND display (see separate operating
instructions). You will see the current set-
tings of the various climate control func-tions.
ECO start/stop function
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 ( Ypage 140).
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 onlybriefly
Air-conditioning system
X Turn the SmartKey to position 2in the igni-
tion lock ( Ypage 135).
X To switch on: turn controlAclockwise to
the desired position (except position 0)
( Y page 121).
X To switch off: turn controlAcounter-
clockwise to position 0(Y page 121).
Dual-zone automatic climate control
X
Turn the SmartKey to position 2in the igni-
tion lock ( Ypage 135).
X To activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the ^button.
The indicator lamp in the ^button goes
out. The previously selected settings arerestored.
X To deactivate: press the^button.
The indicator lamp in the ^button lights
up.
iDual-zone automatic climate control:
switch on climate control primarily using the à button.
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.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. The air inside the vehicle is cooled and
dehumidified according to the temperatureselected.
Condensation may drip from the underside of the vehicle when it is in cooling mode. This is
normal and not a sign that there is a malfunc- tion.
124Operating the climate control systems
Climate control

Problems with the rear window defroster
ProblemPossible causes/consequences andMSolutions
The rear window
defroster has deactiva-
ted prematurely or can-
not be activated.The battery has not been sufficiently charged.
X Switch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window
defroster can be activated again.
Activating/deactivating air-recircula-
tion mode
General notes
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
If you switch on air-recirculation mode, the
windows can fog up more quickly, in particu-
lar at low temperatures. Only use air-recircu-
lation mode briefly to prevent the windows
from fogging up.
The operation of air-recirculation mode is the same for all control panels.
Switching on/off
X Turn the SmartKey to position 2in the igni-
tion lock ( Ypage 135).
X To activate: press theebutton.
The indicator lamp in the ebutton lights
up.
Air-recirculation mode switches on automat-
ically: R at high outside temperatures
R at high levels of pollution
When air-recirculation mode is activated
automatically, the indicator lamp in the e
button is not lit. Outside air is added after
about 30 minutes.
X To deactivate: press theebutton.
The indicator lamp in the ebutton goes
out.
iAir-recirculation mode deactivates auto-
matically:
R after approximately five minutes at out-
side temperatures below approximately
7 †
R after approximately five minutes if the
"Cooling with air dehumidification" func-
tion is deactivated
R after approximately 30 minutes at out-
side temperatures above approximately
7 † if the cooling with air dehumidifica-
tion function is activated
Activating/deactivating the residual
heat function
General notes
The residual heat function is only available
with dual-zone automatic climate control.
It is possible to make use of the residual heat
of the engine to continue heating the vehicle
for approximately 30 minutes after the engine
has been switched off. The heating time
depends on the set interior temperature.
iThe blower will run at a low speed regard-
less of the airflow setting.
iIf you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
iYou cannot use the ventilation to cool the
vehicle interior to a temperature lower than the outside temperature.
130Operating the climate control systems
Climate control