
Rear seats
Adjusting ....................................... 113
Display message ............................ 322
Rear view camera
Cleaning instructions ..................... 380
Displays in the Audio display ......... 232
Displays in the COMAND display ... 232
Function/notes ............................. 231
Switching on/off ........................... 232
Rear window defroster
Problem (malfunction) ................... 159
Switching on/off ........................... 158
Rear window wiper
Replacing the wiper blade .............. 141
Switching on/off ........................... 140
Rear-view mirror
Anti-glare (manual) ........................ 124
Dipping (automatic) ....................... 125
Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 453
Refueling
Fuel gauge ....................................... 35
Important safety notes .................. 182
Refueling process .......................... 183
see Fuel
Remote control
Garage door opener ....................... 364
Programming (garage door
opener) .......................................... 365
Replacing bulbs
Important safety notes .................. 136
Overview of bulb types .................. 137
Removing/replacing the cover
(front wheel arch) .......................... 137
Reporting safety defects .................... 29
Rescue card ......................................... 30
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 309
Warning lamp ................................. 334
see Fuel
Residual heat (climate control) ........ 159
Restraint system
Display message ............................ 299
Introduction ..................................... 44
Warning lamp ................................. 333 Warning lamp (function) ................... 45
Reversing feature
Panorama sliding sunroof .............. 103
Roller sunblinds ............................. 104
Side windows ................................... 98
Sliding sunroof ............................... 103
Tailgate ............................................ 93
Reversing lamps (display mes-
sage) ................................................... 305
Roadside Assi stance (breakdown) .... 26
Ro
ller sunblind
Panorama roof with power tilt/
sliding panel .................................. 104
Rear side windows ......................... 351
Roof carrier ........................................ 348
Roof lining and carpets (cleaning
guidelines) ......................................... 384
Roof load (maximum) ........................ 454
Route (navigation)
see Route guidance (navigation)
Route guidance (navigation) ............ 277
S Safety
Children in the vehicle ..................... 61
Safety system
see Driving safety systems
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 49
Adjusting the height ......................... 48
Cleaning ......................................... 383
Correct usage .................................. 47
Fastening ......................................... 48
Important safety guidelines ............. 46
Introduction ..................................... 46
Releasing ......................................... 49
Switching belt adjustment on/off
(on-board computer) ...................... 286
Warning lamp ................................. 325
Warning lamp (function) ................... 49
Seats
Adjusting (electrically) ................... 110
Adjusting the head restraint .......... 110
Cleaning the cover ......................... 383
Correct driver's seat position ........ 108
Entry position (3rd row of seats) .... 116 Index 17

Exit position (3rd row of seats) ...... 116
Folding down/up (third row of
seats) ............................................. 113
Folding the 2nd row of seats
forward electrically ........................ 117
Folding the 2nd row of seats
forward manually ........................... 115
Folding the rear bench seat for-
wards/back ................................... 344
Important safety notes .................. 109
Overview ........................................ 109
Seat heating problem .................... 120
Seat ventilation problem ................ 121
Storing settings (memory func-
tion) ............................................... 127
Switching seat heating on/off ....... 118
Switching seat ventilation on/off .. 120
Section
Sliding sunroof ............................... 102
Selector lever
Cleaning ......................................... 382
Sensors (cleaning instructions) ....... 380
Service menu (on-board com-
puter) .................................................. 283
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 451
Coolant (engine) ............................ 452
DEF special additives ..................... 450
Engine oil ....................................... 450
Fuel ................................................ 447
Important safety notes .................. 447
Refrigerant (air-conditioning sys-
tem) ............................................... 453
Washer fluid ................................... 453
Setting the air distribution ............... 156
Setting the airflow ............................ 156
Settings
Factory (on-board computer) ......... 286
On-board computer ....................... 283
SETUP (on-board computer) ............. 287
Side impact air bag ............................. 52
Side marker lamp (display mes-
sage) ................................................... 305
Side windows
Cleaning ......................................... 379 Convenience closing feature ............ 99
Convenience opening feature .......... 99
Hinged side windows ....................... 98
Important safety information ........... 97
Opening/ closing .............................. 98
Overvie w .......................................... 97
Problem (malfunction) ................... 102
Resetting ....................................... 100
Reversing feature ............................. 98
Sliding sunroof
Important safety notes .................. 102
Opening/closing ............................ 103
Problem (malfunction) ................... 106
Resetting ....................................... 104
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 85
Changing the programming ............. 84
Checking the battery ....................... 85
Convenience closing feature .......... 100
Convenience opening feature .......... 99
Display message ............................ 323
Door central locking/unlocking ....... 82
Important safety notes .................... 82
KEYLESS-GO start function .............. 84
Loss ................................................. 87
Mechanical key ................................ 84
Overview .......................................... 82
Positions (ignition lock) ................. 165
Problem (malfunction) ..................... 87
Starting the engine ........................ 167
Snow chains
Information .................................... 407
Snow drive program ....................... 255
Sockets
Center console .............................. 353
General notes ................................ 353
Luggage compartment ................... 354
Rear compartment ......................... 353
Special seat belt retractor .................. 61
Specialist workshop ............................ 29
Speed, controlling
see Cruise control
Speedometer
Digital ............................................ 277
In the Instrument cluster ................. 35
Segments ...................................... 27218
Index

How the air bag system works is deter-
mined by the severity of the accident detec-
ted, especially the vehicle deceleration or
acceleration and the apparent type of acci-
dent: R
frontal collision R
side impact R
rollover
PRE-SAFE ®
(anticipatory occupant
protection system)
Introduction In certain hazardous situations, PRE-SAFE ®
takes pre-emptive measures to protect the
vehicle occupants.
Important safety notes
! Make sure that there are no objects in the
footwell or behind the seats. There is a dan-
ger that the seats and/or objects could be
damaged when PRE-SAFE ®
is activated.
Although your vehicle is equipped with PRE-
SAFE ®
, the possibility of injury in the event of
an accident cannot be ruled out. Always
adapt your driving style to suit the prevailing
road and weather conditions and maintain a
safe distance from the vehicle in front. Drive
carefully.
Function
PRE-SAFE ®
intervenes:R
in emergency braking situations, e.g. when
BAS is activated R
in critical driving situations, e.g. when phys-
ical limits are exceeded and the vehicle
understeers or oversteers severely R
on vehicles with the Driving Assistance
package: if BAS PLUS intervenes power-
fully or the radar sensor system detects an
imminent danger of collision in certain sit-
uations PRE-SAFE ®
takes the following measures
depending on the hazardous situation detec-
ted: R
the front seat belts are pre-tensioned. R
if the vehicle skids, the sliding sunroof and
the side windows are closed so that only a
small gap remains. The panorama roof with
power tilt/sliding panel is completely
closed. R
vehicles with the memory function: the
front-passenger seat is adjusted if it is in an
unfavorable position. R
vehicles with a multicontour seat: the air
pressure in the side bolsters of the seat
backrest is increased.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pre-tensioning. On vehicles with mul-
ticontour seats, the air pressure in the side
bolsters is reduced again. All settings made
by PRE-SAFE ®
can then be reversed.
If the seat belt pre-tensioning is not reduced: X
Move the seat backrest or seat back
slightly when the vehicle is stationary.
The seat belt pre-tensioning is reduced and
the locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. You
will find information on the convenience func-
tion under "Belt adjustment" ( Y
page 49).
Automatic measures after an acci-
dent
Immediately after an accident, the following
measures are implemented, depending on
the type and severity of the impact: R
the hazard warning lamps are activated R
the emergency lighting is activated R
the vehicle doors are unlocked R
the front side windows are lowered R
vehicles with a memory function: the elec-
trically adjustable steering wheel is raised60
Occupant safety
Safety

Useful information .............................. 82
SmartKey ............................................. 82
Doors .................................................... 90
Cargo compartment ............................ 93
Side windows ...................................... 97
Sliding sunroof .................................. 102 81
Opening and closing