
Armrest, front 
Storage compartment  ....................193
Ashtrays  ............................................. 196
Aspect ratio (tires)  ............................ 240
Audio/DVD menu  .............................. 126
Auto-dimming rear view mirrors  ........ 90
Automatic central locking  .......... 74, 135
Automatic headlamp mode  ................ 93
Automatic interior lighting control  .... 97
Automatic locking when driving  ...... 135
Automatic shift program  .................. 114
Automatic transmission  ................... 109
Automatic shift program  ................114
Emergency operation (limp-home
mode)  ............................................ 117
Gear range indicator  ......................114
Gear ranges  ................................... 113
Gear selector lever  ........................109
Hill-start assist system  ..................152
Kickdown  ....................................... 113
Kickdown (manual shift program)  ..117
Manual shift program ..................... 115
One-touch gearshifting  ..................115
Program mode indicator  ................114
Program mode selector switch
(automatic shift program)  ..............114
Program mode selector switch
(manual shift program)  ..................116
Shifting procedure  .........................111
Steering wheel gearshift control  ....115
Towing a trailer  .............................. 113
Transmission position indicator  .....112
Transmission positions  ..................112
AUX socket  ........................................ 193
Axle oils  .............................................. 357
B
BabySmart™  
Air bag deactivation system  .............46
Self-test  ........................................... 47
Backrest
see Seats                                                  
Backup lamps  
Messages in the multifunction
display  ........................................... 293
Bar (air pressure unit)  ....................... 240
BAS (Brake Assist System)  ................. 63
Batteries, SmartKey  
Checking condition  ..........................73
Replacing  ....................................... 309
Battery, Vehicle  ................................. 334
Charging  ........................................ 336
Jump starting  ................................. 336
Messages in the multifunction
display  ................................... 280, 290
Bead (tire)  .......................................... 240
Beverage holders see Cup holders                                        
Bleeding the fuel system (diesel
engine)  ............................................... 331
BlueTEC  
AdBlue ®
 tank  ................................. 331
AdBlue ®
 tank capacity  ...................358
Brake fluid  
Checking level  ............................... 217
Messages in the multifunction
display  ........................................... 284
Brake lamps  
Cleaning lenses  ............................. 263
Brake pads  
Messages in the multifunction
display  ........................................... 283
Brakes  ................................................ 245
High-performance brake system  ....246
Parking brake  ........................ 107, 247
Warning lamp ................................. 299
Break-in period  .................................. 210
Bug cover (Radiator)  ......................... 214
Bulbs see Replacing bulbs                                  
C
CAC (Customer Assistance Center)  ... 23
California retail buyers and
lessees, important notice for  ............. 21
Calls (phone)  ...................................... 139
Can holders see Cup holders                                        
Capacities and recommended
fuel/lubricants  .................................. 356
Cargo compartment  
Cargo net  ....................................... 191
Cargo volume, expanding  ..............189
Cover blind  .................................... 190
Index5164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 5 

G
Garage door opener  .................... 32, 204
Gasoline see Fuel                                                     
GAWR (Gross Axle Weight Rating)  ... 240
Gear range  ......................................... 113
Indicator  ........................................ 114
Limiting  .......................................... 115
Shifting into optimal  ......................115
Gear selector lever  ............................ 109
Cleaning ......................................... 265
Gearshift pattern  ........................... 109
Shifting procedure  .........................111
Transmission position indicator  .....112
Transmission positions  ..................112
Generator
see Alternator                                           
Global locking/unlocking
see Key, SmartKey                                    
Glove box  ........................................... 193
Gross Axle Weight Rating see GAWR                                                 
Gross Trailer Weight
see GTW                                                    
Gross Vehicle Weight
see GVW                                                    
Gross Vehicle Weight Rating
see GVWR                                                 
GTW (Gross Trailer Weight)  .............. 240
GVW (Gross Vehicle Weight)  ............ 240
GVWR (Gross Vehicle Weight
Rating)  ................................................ 240
H
Halogen headlamps see Headlamps                                         
Hard plastic trim items, cleaning  .... 265
Hazard warning flasher  ....................... 96
Headlamp cleaning system  ................ 96
Headlamps  
Active Bi-Xenon headlamps  .............92
Adjusting aim  ................................. 317
Automatic headlamp mode  ..............93
Bi-Xenon  .................................. 92, 312
Cleaning lenses  ............................. 263
Cleaning system  .............................. 96
Daytime running lamp mode  ............94
Delayed shut-off  ............................ 134
Halogen  ......................................... 312
High-beam flasher ............................ 96
High-beam headlamps  .....................96
Low-beam headlamps  ......................93
Replacing bulbs  ............................. 311
Switch  .............................................. 93
Headliner, cleaning and care of  ....... 265
Head restraints  .................................... 81
Adjustment  ................................ 81, 83
Folding back  .................................... 84
NECK-PRO active front head
restraints  ......................................... 53
NECK-PRO active front head
restraints, resetting  .......................309
Rear seat head restraints ................. 84
Heated steering wheel  ........................ 88
Height adjustment  
Seat belt outlet  ................................ 51
Seats  ............................................... 81
Vehicle level control  ......................156
High-beam flasher  ............................... 96
High-beam headlamps  ................ 96, 312
Indicator lamp .................................. 29
High-performance brake system  ..... 246
Hill-start assist system  ..................... 152
Hood  ................................................... 212
Messages in the multifunction
display  ........................................... 286
Hooks  ................................................. 189
Horn  ...................................................... 27
HVAC see Climate control system                      
Hydroplaning  ..................................... 247
I
Identification labels  .......................... 346
Identification number, vehicle
(VIN)  ................................................... 347
Ignition  ................................... 79, 80, 104
Immobilizer  .......................................... 66
Indicator lamps see Lamps, indicator and warning            
Infant and child restraint systems
see Children in the vehicle                        
10Index164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 10 

Front passenger front air bag off
(USA only) ................................ 42, 305
Fuel tank reserve  .....................29, 303
High-beam headlamps  ...............29, 96
Instrument cluster  ...................28, 297
Low-beam headlamps  ................29, 93
Low tire pressure/TPMS
malfunction telltale  ..................28, 304
Seat belt telltale  ................29, 51, 300
SRS .................................... 29, 36, 301
Turn signals  ..................................... 28
Language, selecting  .......................... 131
LATCH-type child seat anchors see Children in the vehicle                        
License plate lamps  
Messages in the multifunction
display  ........................................... 294
Replacing bulbs  ............................. 313
Light alloy wheels, cleaning  ............. 264
Lighter see Cigarette lighter                                 
Lighting  ................................................ 92
Daytime running lamp mode  ............94
Exterior  ............................................ 93
Interior  ............................................. 97
Limp-home mode  .............................. 117
Load index (tires)  ...................... 236, 240
Loading see Vehicle loading                                   
Locator lighting  ................................. 133
Lock button  
Outside door handle (KEYLESS-
GO)  .................................................. 73
Locking the vehicle  
KEYLESS-GO  .................................... 71
Manually  ........................................ 307
SmartKey  ......................................... 70
Loss of  
Key  .................................................. 73
Service and Warranty Information
booklet  .......................................... 346
Low-beam headlamps  ......................... 93
Exterior lamp switch  ........................93
Indicator lamp .................................. 29
Switching on  .................................... 93
Lubricants  .......................................... 356
Lumbar support  ................................... 84M
Maintenance  ........................................ 21
Maintenance System  
Service indicator display  ................259
Service indicator message  .............258
Service term exceeded  ..................259
Manual headlamp mode (Low-
beam headlamps)  ................................ 93
Manual shift program  ....................... 115
Maximum engine speed see Vehicle specification                          
Maximum loaded vehicle weight  ..... 241
Maximum load rating (tires)  ............. 240
Maximum permissible tire
inflation pressure  .............................. 241
Mechanical key  .................................. 306
Media interface  ................................. 193
Memory function  ................................. 92
Menus see Control system menus                       
Minispare wheel
see Spare wheel                                        
Mirrors  .................................................. 89
Auto-dimming rear view mirrors ....... 90
Exterior rear view mirror parking
position  ............................................ 90
Exterior rear view mirrors  ................89
Interior rear view mirror  ...................89
Memory function .............................. 92
Power-folding exterior rear view
mirrors  ............................................. 91
Vanity mirror  .................................. 195
MOExtended system  ......................... 330
MOExtended tires  ..................... 330, 352
MON (Motor Octane Number)  .......... 360
Motor Octane Number see MON                                                   
Multicontour seat  ................................ 85
Multifunction display  ........................ 121
Symbol messages  ..........................283
Text messages  ............................... 273
Vehicle status messages  ...............272
Multifunction display messages  
ABS  ....................................... 273, 284
Active headlamps  .......................... 293
Advanced TPMS ..................... 281, 296
Air bags  ......................................... 27512Index164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 12 

Program mode selector switch 
Automatic shift program  ................114
Manual shift program ..................... 116
Proximity key
see Key, SmartKey                                    
PSI (air pressure unit)  ....................... 241
R
RACETIMER  ........................................ 124
Radiator  ..................................... 214, 242
Radio  
Selecting stations  ..........................126
Radio transmitters  ............................ 257
Rain sensor see Intermittent wiping                             
Rear axle oil  ....................................... 357
Rear center console ashtray see Ashtrays                                             
Rear doors  
Child safety locks  ............................ 60
Rear door window  
Override switch  ................................ 60
Rear fog lamp
see Fog lamps                                           
Rear lamps
see Tail lamps                                           
Rear seat head restraints
see Head restraints                                   
Rear view camera  .............................. 163
Cleaning the camera lens  ..............263
Rear window defroster  ..................... 183
Rear window wiper/washer  ............. 100
Recommended tire inflation
pressure  ..................................... 219, 241
Refilling  
AdBlue ®
 ......................................... 332
Refrigerant, air conditioning  ............ 359
Refueling  ............................................ 210
Regular checks  .................................. 212
Reminder, Seat belt see Seat belts, Telltale                              
Remote control
see Key, SmartKey                                    
Remote door unlock (Tele Aid)  ......... 203
Replacing  
Key  .................................................. 74
Replacing bulbs  ................................. 311
Reporting safety defects  .................... 24
Research Octane Number see RON                                                    
Reserve fuel  
Messages in the multifunction
display  ........................................... 291
Warning lamp  ................................... 29
Reset button  ................................ 28, 118
Reset tool (NECK-PRO active front
head restraints)  ................................. 309
Restraint systems see Occupant safety                                 
Rims  ........................................... 241, 352
Roadside Assistance  ................... 21, 201
RON (Research Octane Number)  ..... 360
Rubber parts, cleaning  ...................... 264
Run-flat tires see MOExtended tires                               
S
Safety  
Driving safety systems  .....................61
Occupant safety ............................... 36
Reporting defects  ............................ 24
Safety belts
see Seat belts                                           
Seat belt force limiter  ......................... 52
Seat belts  ............................................. 48
Adjustment function  ........................51
Children in the vehicle  .....................55
Cleaning ......................................... 265
Fastening  ......................................... 50
Height adjustment  ...........................51
Proper use of  ................................... 48
Safety guidelines  ............................. 39
Safety notes ..................................... 48
Telltale  ..................................... 29, 300
Seat heating  ......................................... 86
Seating capacity  ................................ 228
Seats  ..................................................... 81
Adjustment  ...................................... 81
Easy-entry/exit feature  ....................87
Folding (expanding cargo volume) . 189
Heating  ............................................ 86
Memory function .............................. 92
Multicontour seat  ............................ 85
Ventilation  ....................................... 85
Index15164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 15 

Vehicle equipment ............................268
Where will I find ...? ..........................268
Vehicle status messages in the
multifunction display .......................272
What to do if … ..................................297
Unlocking/locking manually ...........306
Resetting activated NECK-PRO
active front head restraints .............309
Replacing SmartKey batteries .........309
Replacing bulbs .................................311
Replacing wiper blades ....................318
Flat tire ..............................................319
Bleeding the fuel system (diesel
engine only) .......................................331
AdBlue® (diesel engine only) ...........331
Battery ...............................................334
Jump starting ....................................336
Towing the vehicle ............................338
Fuses ..................................................342
267Practical hints164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 267   

LampsDisplay messagesPossible causes/consequences and M SolutionsbActive 
Headlamps 
Inoperativ
eThe active Bi-Xenon headlamp system is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.bReverse 
Lamp Left
or
Reverse 
Lamp RightThe left or right backup lamp is malfunctioning.XReplace the bulb as soon as possible ( Y page 311).bBrake 
Lamp Left
or
Brake 
Lamp RightThe left or right brake lamp is malfunctioning.
Rear lamps with bulbs:  A substitute bulb is being used.
Rear lamps with LEDs:  This message will only appear if all
LEDs have stopped working.XRear lamps with bulbs:  Replace the bulb as soon as
possible ( Y page 311).XRear lamps with LEDs:  Contact an authorized Mercedes-
Benz Center as soon as possible.b3rd Brake 
LampThe high-mounted brake lamp is malfunctioning. This
message will only appear if all LEDs have stopped working.XContact an authorized Mercedes-Benz Center as soon as
possible.bFront 
Foglamp 
Left
or
Front 
Foglamp 
RightThe left or right front fog lamp is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.bMarker 
Lamp 
Front Left
or
Marker 
Lamp 
Front 
RightThe front left side or right side marker lamp is malfunctioning.XReplace the bulb as soon as possible ( Y page 311).Vehicle status messages in the multifunction display293Practical hints164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 293Z 

Display messagesPossible causes/consequences and M SolutionsbParking 
Lamp 
Front Left
or
Parking 
Lamp 
Front 
RightThe left or right front parking lamp is malfunctioning. A
substitute bulb is being used.XReplace the bulb as soon as possible ( Y page 311).bHigh Beam 
Left
or
High Beam 
RightThe left or right high-beam lamp is malfunctioning.XHalogen headlamp:  Replace the bulb as soon as possible
( Y  page 311).XBi-Xenon headlamp:  Contact an authorized Mercedes-
Benz Center as soon as possible.bLicense 
Plate 
Lamp Left
or
License 
Plate 
Lamp RightThe left or right license plate lamp is malfunctioning.XReplace the bulb as soon as possible ( Y page 311).bAUTO 
Light 
Inoperativ
eThe light sensor is malfunctioning. The headlamps come on
automatically.XContact an authorized Mercedes-Benz Center as soon as
possible.
To switch off the headlamps (U.S. vehicles only):
XIn the control system, set daytime running lamp mode to
manual ( Y page 133).XSwitch off the headlamps using the exterior lamp switch
( Y  page 93).bLow Beam 
Left
or
Low Beam 
RightThe left or right low-beam lamp is malfunctioning.XHalogen headlamp:  Replace the bulb as soon as possible
( Y  page 311).XBi-Xenon headlamp:  Contact an authorized Mercedes-
Benz Center as soon as possible.bFoglamp 
Rear LeftThe rear fog lamp is malfunctioning.
Rear lamps with LEDs:  A substitute bulb is being used.XReplace the bulb as soon as possible ( Y page 311).294Vehicle status messages in the multifunction displayPractical hints
164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 294 

Display messagesPossible causes/consequences and M SolutionsbSwitch 
Off LightsYou have removed the SmartKey from the starter switch,
opened the driver’s door and left the headlamps on or
removed the SmartKey with KEYLESS-GO from the vehicle
and left the headlamps on.XTurn the exterior lamp switch to  $ or Ã
( Y  page 93).
or
XWith the rear fog lamp switched on:  Push in the exterior
lamp switch to its stop.bTail Lamp 
Left
or
Tail Lamp 
RightThe left or right tail lamp is malfunctioning.
Rear lamps with bulbs:  A substitute bulb is being used.
Rear lamps with LEDs:  This message will only appear if all
LEDs have stopped working.XRear lamps with bulbs:  Replace the bulb as soon as
possible ( Y page 311).XRear lamps with LEDs:  Contact an authorized Mercedes-
Benz Center as soon as possible.bCornering 
Lamp Left
or
Cornering 
Lamp RightThe left or right corner-illuminating front fog lamp is
malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.bTrailer 
Brake LampThe left or right trailer brake lamp is malfunctioning.XReplace the bulb as soon as possible.bTrailer 
Tail Lamp 
Left
or
Trailer 
Tail Lamp 
RightThe left or right trailer tail lamp is malfunctioning.XReplace the bulb as soon as possible.bTrailer 
Turn 
Signal 
Left
or
Trailer 
Turn 
Signal 
RightThe left or right trailer turn signal lamp is malfunctioning.XReplace the bulb as soon as possible.Vehicle status messages in the multifunction display295Practical hints164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 295Z