
O
Occupant Classification System
(OCS) Faults ............................................... 52
Operation ......................................... 48
System self-test ............................... 51
Occupant safety
Children in the vehicle .....................60
System overview .............................. 42
Octane number (fuel) ........................ 512
Odometer ........................................... 368
Off-map .............................................. 171
Off-road .............................................. 171
4MATIC .......................................... 339
Oil
see Engine oil
On-board computer
AMG menu ..................................... 371
Assistance menu ........................... 375
Audio menu ................................... 370
Display messages ..........................380
Important safety notes ..................364
Instrument cluster submenu ..........377
Lighting submenu .......................... 377
Message memory .......................... 380
Navigation menu ............................ 369
Operating video DVD .....................371
Operation ....................................... 365
Overview of menus ........................367
Service menu ................................. 377
Settings menu ............................... 377
Standard display submenu ............368
Telephone menu ............................ 374
Trip menu ...................................... 368
Opening height restriction for
trunk lid .............................................. 261
Operating system see On-board computer
Orientation in direction of travel ..... 181
Outside lighting Delayed switch-off (COMAND) .......259
Outside temperature
Display ........................................... 365
Overhead control panel
Overview .......................................... 36
Override feature
Rear side windows ...........................65P
Paint code number ............................ 509
Paintwork (cleaning instructions) ... 454
Panic alarm .......................................... 66
Panorama roof with power tilt/
sliding panel Opening/closing .............................. 95
Resetting ......................................... 97
Parking ............................................... 316
Parking aid Parking Guidance ........................... 342
PARKTRONIC ................................. 339
Rear view camera .......................... 346
Parking brake
Display message ............................ 389
Electric parking brake ....................317
Parking Guidance .............................. 342
Display message ............................ 405
Parking lamp (display message) ...... 396
Parking position Exterior mirror on the front-
passenger side ............................... 111
Exterior mirrors (COMAND) ...........258
PARKTRONIC
Activating/deactivating .................341
Function/notes ............................. 339
Malfunction .................................... 342
Problem ......................................... 342
Range of the sensors .....................340
Warning display ............................. 341
Passcode
Entering ................................. 147, 194
Pause function ................................... 220
Pedals ................................................. 319
Permanent four-wheel drive see 4MATIC
Phone book
Calling up ....................................... 201
Creating an entry ........................... 203
Deleting an entry ........................... 204
Introduction ................................... 200
Plastic trim (cleaning instructions) . 458
Playback options .............. 224, 229, 234
Point of interest Category ........................................ 161
Entering ......................................... 160
Entering a name ............................. 160Index15

Rear window heatingMalfunction .................................... 293
Switching on/off ........................... 293
Redials ................................................ 197
Refueling ............................................ 313
Remote control .................................. 123
Programming (garage door
opener) .......................................... 440
Rear Seat Entertainment System ...138
Reporting
Malfunctions relevant to safety ........ 27
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 400
Warning lamp ................................. 418
Reset .................................................. 148
Residual heat Switching on/off ........................... 294
Restraint systems
see SRS
Reversing lamp (display message) .. 396
Roadside Assistance (breakdown) .... 25
Roller blind see Roller sunblind
Roller sunblind
Panorama roof with power tilt/
sliding panel ..................................... 95
Rear side windows ...........................90
Rear window .................................. 429
Rear window (COMAND) ................258
Roller sunblind of the panorama
roof with power tilt/sliding panel Operating (front roller sunblind) ....... 95
Operating (rear roller sunblind) ........96
Roof carrier ................................ 426, 427
Roof lining and carpets (cleaning
guidelines) ......................................... 459
Roof load (maximum) ........................ 516
Route Calculating ..................................... 154
Estimated time of arrival ................169
Route overview .............................. 170
see Route guidance (on-board
computer)
Route calculation
Starting .......................................... 154Route guidance .................................. 164
Cancel ........................................... 167
Continue ........................................ 167
Continuing ..................................... 167
Destination reached ......................168
Lane recommendations .................165
Off-road ......................................... 171
Traffic reports ................................ 172
Route guidance (on-board
computer) .......................................... 369
Route options Setting ........................................... 150
Route overview .................................. 170
Route type Setting ........................................... 150
S
Safety Children in the vehicle .....................60
Child restraint systems ....................61
Occupant Classification System
(OCS) ............................................... 48
Overview of occupant safety
systems ........................................... 42
Safety notes
Audio CD/DVD and MP3
mode ..................................... 217, 247
Operating safety ....................114, 266
Using the telephone ....................... 191
Video DVD mode ........................... 236
Safety systems
see Driving safety systems
SatRadio ............................................. 213
Displaying information ...................217
Registering .................................... 214
Selecting a category ......................215
Switching to ................................... 214
Screen
Selecting for remote operation ......138
SD memory card
Loading .......................................... 218
Seat
Active multicontour seat ........ 106, 268
Adjusting (rear compartment) ........102
Selecting (COMAND) .....................266
Index17

Seat beltsAdjusting the driver's and front-
passenger seat belt .........................58
Adjusting the height ......................... 58
Automatic comfort-fit feature ..........60
Belt force limiters ............................ 59
Cleaning ......................................... 459
Correct usage .................................. 56
Emergency Tensioning Devices ........ 59
Fastening ......................................... 57
Important safety guidelines .............55
Releasing ......................................... 58
Safety guidelines ............................. 43
Special seat belt retractor ...............62
Switching belt adjustment on/off
(on-board computer) ......................378
Warning lamp ................................. 414
Warning lamp (function) ................... 58
Seat heating
Indicator lamp (Malfunction) ..........107
Seats
Adjusting (electrically) ...................102
Adjusting lumbar support ..............106
Adjusting the head restraint ..........104
Cleaning the cover .........................458
Correct driver's seat position ........100
Important safety notes ..................101
Multicontour seat .......................... 106
Storing settings (memory
function) ........................................ 111
Switching seat heating on/off .......106
Switching the seat ventilation on/
off .................................................. 107
Seat ventilation
Indicator lamp (Malfunction) ..........107
Sensors (cleaning instructions) ....... 456
Service indicator see Service interval display
Service interval display .................... 451
Displaying a service message (on-
board computer) ............................ 452
Service menu (on-board computer) . 377
Service products Brake fluid ..................................... 514
Capacities ...................................... 511
Coolant (engine) ............................ 515
Engine oil ....................................... 513
Fuel ................................................ 512Important safety notes ..................510
Notes ............................................. 510
Refrigerant (air-conditioning
system) .......................................... 514
Washer fluid ................................... 515
Settings
On-board computer .......................377
Setting the air distribution
COMAND ....................................... 263
Shift ranges ....................................... 311
Showing the distance display (on-
board computer) ............................... 375
Side impact air bag ............................. 46
Side marker lamp (display
message) ............................................ 396
Side windows Convenience closing feature ............91
Convenience opening feature ..........90
Important safety information ...........89
Opening/closing .............................. 90
Resetting ......................................... 92
Troubleshooting ............................... 92
Skipping back
CD/DVD mode .............................. 222
Skipping forwards
CD/DVD mode .............................. 222
Sliding sunroof
Important safety information ...........93
Opening/closing .............................. 94
Resetting ......................................... 94
Troubleshooting ............................... 97
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery .......................80
Changing the programming .............79
Checking the battery .......................80
Convenience closing feature ............91
Convenience opening feature ..........90
Display message ............................ 411
Important safety notes ....................76
Malfunction ...................................... 81
Starting the engine ........................301
Snow chains ...................................... 482
Socket ................................................ 431
Dashboard ..................................... 432
Rear compartment .........................432
Trunk ............................................. 43218Index

Overhead control panelFunctionPage:Eyeglasses compartment423;p Switches the left-
hand reading lamp on/off277
=u Switches the rear
interior lighting on/off278
?c Switches the front
interior lighting on/off278
A3 Opens/closes the
sliding sunroof94
3 Opens/closes the
panorama roof with power
tilt/sliding panel with roller
sunblinds95
BG SOS button (mbrace
system)433
C| Switches the
automatic interior lighting
control on/off278
FunctionPageDy Extends/retracts the
rear roller sunblind of the
panorama roof with power
tilt/sliding panel95
Ep Switches the right-
hand reading lamp on/off277
FRear-view mirrorGButtons for the garage door
opener440
HMicrophone for mbrace
(emergency call system),
telephone and Voice
Control System4
4Observe the additional operating instructions.36Overhead control panelAt a glance

RearFunctionPage:v Adjusts the front-
passenger seat from the
rear
103
;r 45=
Memory function
111
=Adjusts the seat electrically102?Opens the door83Au Roller sunblind429By Operates the rear
roller sunblind of the
panorama roof with power
tilt/sliding panel from the
rear
96
FunctionPageCW Opens/closes the
side windows
89
t Opens/closes the
roller sunblinds in the rear
side windows
90
Dc Adjusts seat heating106s Adjusts seat
ventilation
107
38Door control panelAt a glance

PRE-SAFE®
systemGWarning
The PRE-SAFE ®
system reduces the impact of
an accident on vehicle occupants, as long as
their seat belts have been fastened correctly.
Although your vehicle is equipped with a PRE-
SAFE ®
system, the possibility of injury in the
event of an accident cannot be ruled out. You
should therefore always drive carefully and
adapt your driving style to the prevailing road,
weather and traffic conditions.
PRE-SAFE ®
takes pre-emptive measures to
protect occupants in certain hazardous
situations.
PRE-SAFE ®
intervenes:
R in emergency braking situations, e.g. if BAS
is activated or, in vehicles with DISTRONIC
PLUS, where BAS PLUS intervenes
powerfully
R if, on vehicles with DISTRONIC PLUS, the
radar sensor system detects an imminent
danger of collision in certain situations
R in critical driving situations, e.g. when
physical limits are exceeded and the
vehicle understeers or oversteers severely
or when having to swerve to avoid an
obstacle at a speed
PRE-SAFE ®
takes the following measures
depending on the hazardous situation
detected:
R the front seat belts are pre-tensioned.
R the front-passenger seat or the electrically
adjustable outer rear seats are adjusted if
they are in unfavorable position.
R on vehicles with a multicontour seat or an
active multicontour seat: the air pressure
in the side bolsters on the seat cushion and
the side bolsters on the backrest is
increased.
R on vehicles with multicontour seats in the
rear: the air pressure in the backrest side
bolsters of the outer seats in the rear is
increased.
R if the vehicle skids, the sliding sunroof,
panorama sliding sunroof and the side
windows are closed so that only a small gap
remains.
If the sliding sunroof, panorama roof with
power tilt/sliding panel or a side window is
obstructed when closing, the closing
procedure is stopped. The obstructed sliding
sunroof, panorama roof with power tilt/
sliding panel or side window then opens again
slightly.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pretensioning. The air pressure in the
side bolsters on the multicontour seat/active
multicontour seat is reduced again. All
settings made by PRE-SAFE ®
can then be
reversed.
If the seat belts are not released:XMove the backrest back slightly, but only
when the vehicle is stationary.
The belt pretensioning is reduced and the
locking mechanism is released.GWarning
Make sure that nobody can become trapped
as you adjust the seat.
! Make sure that there are no objects in the
footwell or behind the seats when resetting
the seats. There is a risk that the seats
and/or the objects could be damaged.
More information about seat-belt
adjustment, a convenience function
integrated into PRE-SAFE ®
, can be found in
the "Seat-belt adjustment" section
( Y page 58).
NECK-PRO head restraints/NECK-
PRO luxury head restraints
NECK-PRO head restraints/NECK-PRO luxury
head restraints increase protection of the
driver’s and front-passenger’s head and neck.
Occupant safety53SafetyZ

Opening and closing the side
windows
:Front left;Front right=Rear right?Rear left
The switches for all side windows are located
on the driver's door. There is also a switch on
each door for the corresponding side window.
iIt is not possible to operate the door
windows from the rear compartment when
the override feature is activated for the
door windows.
XTurn the SmartKey to position 1 in the
ignition lock.
iThe switches on the driver's door take
precedence over the switches on the other
doors.
XTo open: press the corresponding switch.XTo close: pull the corresponding switch.
iIf you press the switch beyond the point
of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by pressing again.
iYou can continue to operate the side
windows after you switch off the engine.
This function remains active for five
minutes or until one of the front doors is
opened.
Sunblinds on the rear side windowsXTo close fully: pull the corresponding
switch when the side window is closed.
iThe roller sunblinds on the rear door
windows are always closed fully.
XTo open fully: press the corresponding
switch.
iYou can use the switches on the rear
doors to close the roller sunblind on the
rear door window on the opposite side of
the vehicle.
Convenience opening
You can ventilate the vehicle before you start
driving. To do this, you can use the SmartKey
to simultaneously:
Ropen the side windows
Ropen the roller sunblinds on the rear side
windows
Ropen the sliding sunroof or the panorama
roof with power tilt/sliding panel and the
roller sunblinds
Rswitch on the seat ventilation of the driver's
seat
iThe convenience opening feature can
only be operated using the SmartKey. The
SmartKey must be close to the driver's
door handle.
XPoint the tip of the SmartKey at the driver's
door handle.
XUnlock the vehicle by pressing the %
button.
XPress and hold the % button until the
side windows and the sliding sunroof or the
panorama roof with power tilt/sliding
panel are in the desired position.
If one of the sunblinds is closed, the sunblind
will open first.
iThe roller sunblinds of the panorama roof
with power tilt/sliding panel and the roller
sunblinds on the rear side windows are
opened at the same time.
90Side windowsOpening and closing

XPress and hold the % button again until
the side windows and the sliding sunroof or
the panorama roof with power tilt/sliding
panel are in the desired position.
XTo interrupt the convenience opening:
release the % button.
Convenience closing
General information
When you lock the vehicle, you can
simultaneously:
Rclose the side windows
Rclose the sliding sunroof or the panorama
roof with power tilt/sliding panel
On vehicles with roller sunblinds, you can
then close the roller sunblinds.
iThe roller sunblinds of the panorama roof
with power tilt/sliding panel and the roller
sunblinds on the rear side windows are
closed at the same time.
GWarning
When closing the door windows and the
sliding sunroof or panorama roof with power
tilt/sliding panel, make sure that there is no
danger of anyone being harmed by the closing
procedure.
If potential danger exists, proceed as follows:
RRelease the & button to stop the closing
procedure. To open, press and hold the
% button. To continue the closing
procedure after making sure that there is
no danger of anyone being harmed by the
closing procedure, press and hold the
& button.
Vehicles with KEYLESS-GO:
RRelease the sensor surface on the outside
door handle to stop the closing procedure.
RImmediately pull on the same outside door
handle and hold firmly. The door windows
and the sliding sunroof or panorama roof
with power tilt/sliding panel will open for
as long as the door handle is held but the
door is not opened.
Using the SmartKey
iThe SmartKey must be close to the
driver's door handle.
XPoint the tip of the SmartKey at the driver's
door handle.
XLock the vehicle by pressing the &
button.
XPress and hold the & button until the
side windows and the sliding sunroof or the
panorama roof with power tilt/sliding
panel are fully closed.
XMake sure that all the side windows and the
sliding sunroof or panorama roof with
power tilt/sliding panel are closed.
XTo interrupt the convenience closing:
release the & button.
On vehicles with roller sunblinds:
XPress the & button again until the roller
sunblinds close.
XTo interrupt the roller sunblind closing
procedure: press the % button.
With KEYLESS-GO
The KEYLESS-GO key must be outside the
vehicle but must not be further than 3 ft (1 m)
from a door.
XClose all the doors.Side windows91Opening and closingZ