Center console ..................................... 31
2nd row of seats ............................ 249
Central locking
Automatic locking (on-board
computer) ...................................... 208
SmartKey ......................................... 74
Changing bulbs
Headlamps ..................................... 121
Changing gears .................................. 157
Changing the bulbs Removing/replacing the cover
(front wheel arch) .......................... 123
Changing the programming
SmartKey ......................................... 77
Child-proof locks
Rear doors ....................................... 66
Special seat belt retractor ...............61
Children
In the vehicle ................................... 59
Restraint systems ............................ 59
Child seat
Automatic recognition .....................48
Automatic recognition/air bag
deactivation, self-test ......................50
ISOFIX (LATCH-type child seat
anchors) ........................................... 62
Special seat belt retractor ...............61
Top Tether ....................................... 63
Troubleshooting ............................... 51
Cigarette lighter ................................ 264
Climate control Activating/deactivating .................138
Activating/deactivating air-
recirculation mode .........................143
Controlling automatically ...............140
Cooling with air dehumidification ..139
Defrosting the windshield ..............142
Demisting the windows .................. 143
Dual-zone automatic climate
control ........................................... 133
Important safety information .........132
Indicator lamp ................................ 140
Multi-zone automatic climate
control ........................................... 134
Problems with "cooling with air
dehumidification" ........................... 140
Problems with the rear window
heating .......................................... 143Rear control panel .................135, 138
Refrigerant ..................................... 355
Setting the air distribution .............142
Setting the airflow .........................142
Setting the air vents ......................145
Setting the temperature ................141
Setting the temperature (rear
compartment) ................................ 141
Switching the MONO function on/
off .................................................. 142
Switching the rear window
heating on/off ............................... 143
Switching the residual heat
function on/off .............................. 144
Clock (on-board computer) ............... 206
Cockpit ................................................. 27
Collapsible spare wheel Inflating ......................................... 305
see Emergency spare wheel
Combination switch .......................... 119
Compass ............................................ 276
Calling up ....................................... 276
Consumption statistics (on-board
computer) .......................................... 210
Convenience closing feature .............. 89
Convenience opening feature ............ 89
Coolant (engine) Antifreeze/corrosion inhibitor .......357
Checking the level .........................281
Display message ............................ 224
Notes ............................................. 355
Temperature gauge ........................ 202
Cooling
see Climate control
Crash-responsive emergency
lighting ............................................... 121
Cruise control .................................... 173
Cruise control lever .......................173
Display message ............................ 229
Cup holder ......................................... 260
Center console .............................. 260
second row of seats ....................... 261
third row of seats ........................... 262
Current fuel consumption (on-
board computer) ............................... 211
Customer Assistance Center (CAC) ............................................... 226IndexBA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 6
Flat tireChanging a wheel/mounting the
spare wheel ................................... 301
MOExtended run-flat system .........307
Preparing the vehicle .....................296
Raising the vehicle .........................303
TIREFIT kit ...................................... 297
Floormat ............................................. 276
Front fog lamp (display
message) ............................................ 223
Fuel Additives ........................................ 353
Notes ............................................. 352
Premium-grade unleaded gasoline . 352
Refueling ........................................ 160
Specifications ................................ 352
Troubleshooting ............................. 164
Fuel consumption
Current (on-board computer) .........211
Notes ............................................. 168
Fuel filler cap (display message) ..... 227
Fuel filler flap Emergency release ........................162
Opening/closing ............................ 162
Fuel filter (display message) ............ 227
Fuel level Calling up the range (on-board
computer) ...................................... 211
Fuses
Dashboard fuse box .......................316
Engine emergency stop .................317
Fuse allocation chart .....................315
Fuse box in the cargo
compartment ................................. 316
Fuse box in the engine
compartment ................................. 316
Notes ............................................. 315
G
Garage door opener Clearing the memory .....................275
Notes ............................................. 272
Opening/closing the garage door ..275
Programming the remote control ...273
Gear or selector lever (cleaning
guidelines) ......................................... 288
Genuine Mercedes-Benz parts ......... 348
Genuine wood trim and trim strips
(cleaning instructions) ...................... 288
Glove box ........................................... 247
GTW (Gross Trailer Weight)
(definition) ......................................... 341
H
Headlamp cleaning system .............. 119
Adding washer fluid .......................281
Notes ............................................. 357
Headlamp delayed switch-off
see Delayed switch-off, exterior lighting
Headlamp mode (daytime driving)
see Daytime running lamps
Headlamps
Cleaning ......................................... 286
Misting up ...................................... 120
Head restraint
Adjusting (electrically) ...................101
Head restraints
Adjusting (manually) ......................101
Adjusting (rear) .............................. 102
Installing/removing (rear) ..............102
Luxury ............................................ 101
see NECK-PRO head restraints/
NECK-PRO luxury head restraints
Heating
see Climate control
High beam flasher ............................. 119
Hill start assist .................................. 152
Hood Closing ........................................... 279
Opening ......................................... 278
Hydroplaning ..................................... 171
I
Immobilizer .......................................... 71
Indicator and warning lamps ABS ................................................ 239
Brakes ........................................... 236
DISTRONIC .................................... 243
Engine diagnostics .........................242
ESP ®
.............................................. 240
Fuel tank ........................................ 242
Reserve fuel ................................... 242
Seat belt ........................................ 237
Index9BA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 9
Rear seatAdjusting ....................................... 103
Rear view camera
Function/notes ............................. 189
Rear view camera (cleaning
instructions) ...................................... 287
Rear-view mirror Anti-glare (manual) ........................111
Dipping (automatic) .......................113
Rear window heating
Malfunction .................................... 143
Switching on/off ........................... 143
Rear window wiper
Replacing the wiper blade .............. 128
Switching on/off ........................... 127
Refueling ............................................ 160
Remote control Programming (garage door
opener) .......................................... 273
Reporting
Malfunctions relevant to safety ........ 23
Reserve fuel
Display message ............................ 227
Warning lamp ................................. 242
Reset button ........................................ 28
Residual heat Switching on/off ........................... 144
Restraint systems
see SRS
Reversing lamp (display message) .. 223
Roadside Assistance (breakdown) .... 20
Roller blind see Roller sunblind
Roller sunblind
Opening/closing .............................. 94
Panorama roof with power tilt/
sliding panel ..................................... 93
Rear side windows .........................263
Roof carrier ................................ 259, 260
Roof lining and carpets (Cleaning
guidelines) ......................................... 289
Route see Route guidance (on-board
computer)
Route guidance (on-board
computer) .......................................... 204S
Safety Children in the vehicle .....................59
Child restraint systems ....................59
Occupant Classification System
(OCS) ............................................... 42
Overview of occupant safety
systems ........................................... 36
Safety systems
see Driving safety systems
Seat
Folding down the 2nd row of
seats .............................................. 252
Folding down the 3rd row of seats . 253
Resetting the 2nd row of seats ......254
Resetting the 3rd row of seats ....... 254
Seat belts
Adjusting the driver's and front-
passenger seat belt .........................56
Adjusting the height ......................... 57
Belt force limiters ............................ 58
Cleaning ......................................... 289
Correct usage .................................. 54
Emergency Tensioning Devices ........ 58
Fastening ......................................... 55
Important safety guidelines .............54
Releasing ......................................... 57
Safety guidelines ............................. 37
Switching belt adjustment on/off
(on-board computer) ......................209
Warning lamp ................................. 237
Warning lamp (function) ................... 57
Seat heating
Indicator lamp (Malfunction) ..........108
Seats
Adjusting (electrically) ...................100
Adjusting (second and third rows) . 103
Adjusting the 4-way lumbar
support .......................................... 107
Adjusting the head restraint ..........101
Cleaning the cover .........................288
Correct driver's seat position ........... 98
Important safety instructions ...........99
Multicontour seat .......................... 107
Storing settings (memory
function) ........................................ 114Index13BA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 13
Switching seat heating on/off .......108
Switching the seat ventilation on/
off .................................................. 108
Seat ventilation
Indicator lamp (Malfunction) ..........109
Securing hooks .................................. 256
Sensors (cleaning instructions) ....... 287
Service indicator see Service interval display
Service interval display .................... 282
Displaying a service message (on-
board computer) ............................ 283
Service products
AdBlue ®
special additives ..............353
Brake fluid ..................................... 355
Coolant (engine) ............................ 355
Engine oil ....................................... 354
Filling capacity ............................... 351
Fuel ................................................ 352
Important safety notes ..................350
Notes ............................................. 350
Refrigerant (air-conditioning
system) .......................................... 355
Washer fluid ................................... 357
Settings
Factory (on-board computer) .........205
On-board computer .......................205
Shift ranges ....................................... 158
Side impact air bag ............................. 40
Side marker lamp (display
message) ............................................ 223
Side windows Convenience closing feature ............89
Convenience opening feature ..........89
Hinged side windows .......................88
Important safety information ...........86
Opening/closing .............................. 87
Resetting ......................................... 88
Troubleshooting ............................... 90
Sliding sunroof
Important safety information ...........91
Troubleshooting ............................... 94
see Panorama roof with power
tilt/sliding panel
see Tilt/sliding sunroof SmartKey
Changing the battery .......................78
Changing the programming .............77
Checking the battery .................74, 78
Important safety notes ....................74
Malfunction ...................................... 79
Socket ................................................ 265
2nd row of seats ............................ 265
Dashboard ..................................... 265
Front-passenger footwell ...............265
Luggage compartment ...................266
SOS
see mbrace
Spare wheel
Notes/data .................................... 346
Storage location ............................ 295
Stowing .......................................... 295
see Emergency spare wheel
Speedometer
Additional speedometer (on-
board computer) ............................ 202
Segments ...................................... 199
Setting the unit (on-board
computer) ...................................... 205
SRS (Supplemental Restraint
System) Display message ............................ 215
Introduction ..................................... 36
Warning lamp ................................. 241
Warning lamp (function) ................... 36
Standard display (on-board
computer) .......................................... 202
Starting the engine Important safety instructions ......... 150
Station
see Radio
Status line (on-board computer)
Multifunction display .....................200
Selecting the display ...................... 206
Steering (display message) .............. 234
Steering wheel Adjusting (electrically) ...................110
Adjusting (manually) ......................109
Buttons (on-board computer) ......... 199
Cleaning ......................................... 288
Important safety instructions ......... 109
Memory function (storing
settings) ......................................... 11014IndexBA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 14
Steering wheel heating ..................110
Storing settings (memory
function) ........................................ 114
Steering wheel heating
Indicator lamp (Malfunction) ..........110
Steering wheel paddle shifters ........ 158
Stowage compartments 3rd row of seats ............................. 248
Armrest (under) ............................. 248
Center air vents (2nd row of
seats) ............................................. 248
Center console (2nd row of seats) . 248
Glove box ....................................... 247
Stowage space
Center console .............................. 247
Cup holders ................................... 260
Important safety information .........246
Submenu (on-board computer)
Convenience .................................. 209
Instrument cluster .........................205
Lighting .......................................... 206
Time/Date ..................................... 206
Vehicle ........................................... 208
Summer opening
see Convenience opening feature
Sun visor ............................................ 262
Supplemental Restraint System see SRS
Surround lighting (on-board
computer) .......................................... 207
SUV (Sport Utility Vehicle) .......................21
Switching off the alarm (ATA) ............ 71
T
Tachometer ........................................ 198
Tailgate Display message ............................ 234
Important safety guidelines .............82
Limiting the opening angle ...............86
Taillight
see Tail lamps
Tank contents
Gauge .............................................. 28
Technical data ................................... 348
R 350 ............................................. 358
R 350 BlueTEC ............................... 357
Tires/wheels ................................. 343
TELEAID
Call priority .................................... 271
Display message ............................ 215
Downloading destinations
(COMAND) ..................................... 271
Emergency call .............................. 268
Important safety notes ..................267
Locating a stolen vehicle ...............272
MB info call button ........................270
Roadside Assistance button ..........269
Self-test ......................................... 268
System .......................................... 268
Vehicle remote unlocking ..............272
Telephone
Accepting a call ............................. 211
Display message ............................ 234
Menu (on-board computer) ............211
Number from the phone book ........ 212
Redialing ........................................ 212
Rejecting/ending a call .................212
Temperature
Coolant (on-board computer) ......... 202
Displaying the outside
temperature ................................... 202
Outside temperature ...................... 198
Setting ........................................... 141
Theft deterrent locking system
Immobilizer ...................................... 71
Tilt/sliding sunroof
Opening/closing .............................. 92
Resetting ......................................... 93
Time (on-board computer) ................ 206
TIREFIT kit .......................................... 297
Tire pressure Calling up (on-board computer) .....327
Checking manually ........................325
Display message ............................ 230
Maximum ....................................... 330
Notes ............................................. 323
Not reached (TIREFIT) ....................300
Pressure loss warning ....................325
Reached (TIREFIT) ..........................300
Recommended ............................... 322
Tire pressure monitor
Warning lamp ................................. 243Index15BA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 15
CockpitFunctionPage:Steering wheel paddle
shifters
158
;Cruise control lever173=Instrument cluster28?HornADIRECT SELECT lever155BPARKTRONIC warning
display
186
COverhead control panel32DOperates THERMATIC/
THERMOTRONIC
132
EIgnition lock149Start/Stop button149FunctionPageFAdjusts the steering wheel
manually
109
GAdjusts the steering wheel
electrically
109
Steering wheel heating110HParking brake167IOn-board diagnostics
connectionJOpens the hood278KReleases the parking brake167LLight switch116MCombination switch119Cockpit27At a glanceBA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 27
Center consoleFunctionPage:COMAND APS; see
separate operating
instructions;Seat heating108=Seat ventilation108?Level control183ASelects the drive program158BIndicator lamp
42 (USA only)
42
Indicator lamp
42 (Canada
only)
48
CHazard warning lamps119FunctionPageDATA indicator lamp71EPARKTRONIC158FESP ®68GSelects ADS settings183HStowage compartment246IStowage tray246JStowage compartment246KCup holder260LStowage compartment246Ashtray263Cigarette lighter264Center console31At a glanceBA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 31
ProblemPossible causes/consequences and M SolutionsThe engine cannot be
started using the
SmartKey.The on-board voltage is too low.XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary
( Y page 308).
or
XJump-start the vehicle ( Y page 311).
or
XConsult a qualified specialist workshop.The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle.A door is open. Therefore, the SmartKey cannot be detected as
easily.XClose the door and try to start the vehicle again.There is interference from a powerful source of radio waves.XStart your vehicle with the SmartKey in the ignition lock.Doors
Important safety guidelines
GWarning!
When leaving the vehicle, always remove the
SmartKey from the starter switch. Always
take the SmartKey with you and lock the
vehicle. Do not leave children unattended in
the vehicle, even if they are secured in a child
restraint system, or with access to an
unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. The children
could
R injure themselves on parts of the vehicle
R be seriously or fatally injured through
excessive exposure to extreme heat or cold
R injure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
starter switch or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and the child could be burned by these
parts.GWarning!
Do not carry heavy or hard objects in the
passenger compartment or cargo
compartment unless they are firmly secured
in place.
Unsecured or improperly positioned cargo
increases a child’s risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accident
80DoorsOpening and closing
BA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 80