
Fuse box ........................................ 344
Hooks  ............................................ 189
Tie-down rings  ............................... 188
Cargo compartment cover blind  ...... 190
Cargo net  ........................................... 191
Cargo tie-down rings  ......................... 188
Carpets, cleaning  .............................. 265
Carriers  .............................................. 187
Center console  
Lower part  ....................................... 32
Upper part  ....................................... 31
Central locking  
Automatic  ................................ 74, 135
KEYLESS-GO  .................................... 71
Locking/unlocking from inside  ........75
SmartKey  ......................................... 70
Central locking/unlocking switch  ..... 75
Certification label  .............................. 346
Children in the vehicle  
Air bags  ........................................... 37
BabySmart™ air bag deactivation
system  ............................................. 46
Child safety locks (rear doors)  .........60
Child seat anchors – LATCH-type  ....59
Indicator lamp, front passenger
front air bag off (Canada only)  .........46
Indicator lamp, front passenger
front air bag off (USA only)  ..............42
Infant and child restraint systems .... 56
OCS (Occupant Classification
System)  ........................................... 42
Override switch  ................................ 60
Safety notes ..................................... 55
Tether anchorage points  ..................58
Top tether  ........................................ 58
Child safety
see Children in the vehicle                        
Child seat anchors – LATCH-type
see Children in the vehicle                        
Chrome-plated exhaust tip,
cleaning  .............................................. 266
Cigarette lighter  ................................ 196
Climate control system  .................... 165
3-zone automatic climate control  ..173
Air conditioning  .....................169, 178
Air conditioning refrigerant  ............359
Air distribution  ....................... 171, 180Air recirculation mode  ...........172, 182
Air volume  ............................. 171, 181
Automatic mode  ....................170, 179
Climate control  .............................. 167
Deactivating system  ..............169, 178
Front defroster  ...................... 171, 181
Residual heat and
ventilation .............................. 172, 183
Temperature  .......................... 170, 179
Clock  ............................................ 28, 132
Cockpit  ................................................. 27
Cold tire inflation pressure  .............. 240
Collapsible tire (spare wheel)  .......... 356
Collapsible wheel chock  ................... 270
COMAND system see separate COMAND system
operating instructions                               
Combination switch  ............................ 95
Comfort submenu  
Easy-entry/exit feature .................. 136
Fold-in function for exterior rear
view mirrors  ................................... 137
Seat belt adjustment feature  .........136
Compass  
Calling up ....................................... 207
Control system  .................................. 119
Multifunction display  .....................121
Multifunction steering wheel  .........119
Resetting to factory settings  ..........129
Control system menus  ...................... 121
AIRMATIC/Compass ...................... 127
AMG ............................................... 123
Audio/DVD  .................................... 126
Distronic  ........................................ 128
Navigation  ..................................... 127
Off-road Mode  ............................... 125
Settings  ......................................... 129
Standard display  ............................ 122
Telephone  ...................................... 139
Trip computer  ................................ 138
Vehicle configuration  .....................137
Vehicle status message memory  ...128
Control system submenus  
Comfort  ......................................... 135
Instrument cluster  .........................130
Lighting  .......................................... 133
Time/Date  ..................................... 132
Vehicle  ........................................... 1356Index164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 6 

Coolant 
Anticorrosion/antifreeze  ...............363
Capacities  ...................................... 358
Checking level  ............................... 216
Messages in the multifunction
display  ........................................... 288
Corner-illuminating front fog
lamps  .................................................... 96
Cruise control  .................................... 141
Activating ....................................... 142
Canceling  ....................................... 142
Changing the set speed  .................143
Last stored speed  ..........................143
Lever .............................................. 142
Messages in the mutlifunction
display  ........................................... 278
Resume function  ............................ 143
Setting current speed  ....................142
Cup holders  ........................................ 194
Curb weight  ....................................... 240
Customer Assistance Center (CAC)  ... 23
Customer Relations Department  ....... 24
D
Dashboard see Instrument cluster                              
Data recording  ..................................... 24
Date, Setting  ...................................... 132
Daytime running lamp mode  .............. 94
Switching on or off ......................... 133
Deep water
see Standing water                                   
Defroster  
Rear window  .................................. 183
Windshield  ............................. 171, 181
Delayed shut-off  
Exterior lamps ................................ 134
Interior lighting  .............................. 135
Department of Transportation
see DOT                                                    
Diesel engine  
Preglow indicator lamp  ....................29
Diesel fuel
see Fuel                                                     
Difficulties  
While driving  .................................. 106
With starting  .................................. 105
Digital clock
see Clock                                                  
Digital speedometer  ......................... 123
Dimensions (vehicle) see Vehicle specification                          
Direction of rotation (tires)  .............. 231
Displays  
Digital speedometer  ......................123
Distronic  ........................................ 146
Maintenance service indicator  .......258
Messages in the multifunction
display  ........................................... 272
Multifunction display  .....................121
Outside temperature  .............123, 131
Symbol messages  ..........................283
Text messages  ............................... 273
Trip computer  ................................ 138
Vehicle status message memory  ...128
Vehicle system settings  .................129
Distronic  ............................................ 144
Cleaning system sensor cover  .......263
Control system  .............................. 128
Distance warning function  .............151
Distance warning
lamp  ...................................... 146, 302
Driving with .................................... 150
Menu  ............................................. 147
Messages in the multifunction
display  ........................................... 278
Resume function  ............................ 149
Sensor cover .................................. 263
Speed settings  ............................... 148
Door control panel  .............................. 33
Door handles  ........................................ 33
Doors  
Child safety locks  ............................ 60
Locking/unlocking (KEYLESS-GO)  ...71
Locking/unlocking (SmartKey)  ........70
Messages in the multifunction
display  ........................................... 286
Opening from inside ......................... 74
Remote door unlock (Tele Aid)  .......203
Unlocking (Mechanical key)  ...........306
DOT (Department of
Transportation)  .................................. 240
Downhill Speed Regulation see DSR                                                    
Drinking and driving  ......................... 244Index7164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 7 

Inflation pressuresee Tires, Inflation pressure                      
Infrared reflecting windshield  ......... 208
Inside door handle  .............................. 74
Instrument cluster  ............................ 117
Illumination  .................................... 118
Lamps  ............................................ 297
Multifunction display  .....................121
Instrument lighting
see Instrument cluster, Illumination         
Instrument panel
see Instrument cluster                              
Instruments and controls
see Cockpit                                               
Interior lighting  
Delayed shut-off  ............................ 135
Emergency lighting  ..........................98
Front  ................................................ 97
Front reading lamps  .........................97
Rear  ................................................. 98
Rear reading lamps  ..........................98
Interior rear view mirror  ..................... 89
Auto-dimming rear view mirrors ....... 90
Interior storage spaces
see Storage compartments                      
Intermittent wiping  
Rain sensor  ...................................... 99
J
Jack  ..................................................... 270
Jump starting  ..................................... 336
K
Key, Mechanical  
Loss of  ............................................. 73
Replacing  ......................................... 74
Unlocking/locking manually  ..........306
Key, SmartKey  
Battery check lamp  ..........................73
Checking batteries  ...........................73
Factory setting ........................... 71, 72
Global locking (KEYLESS-
GO)  .................................................. 73
Global locking (SmartKey) ................ 71
Global unlocking (KEYLESS-
GO)  ............................................ 72, 73
Global unlocking
(SmartKey)  ....................................... 71
Important notes on KEYLESS-GO  .....72
Locking/unlocking ........................... 70
Loss of  ............................................. 73
Messages in the multifunction
display  ................................... 286, 287
Opening and closing the power
tilt/sliding sunroof  .........................102
Opening and closing the windows . 102
Remote control  ................................ 70
Replacing  ......................................... 74
Replacing batteries  ........................309
Restoring to factory setting  .......71, 73
Selective setting  ........................71, 73
Starter switch positions  ...................79
KEYLESS-GO  
Starter switch positions  ...................80
Kickdown  ........................................... 113
Kickdown (manual shift program)  ... 117
Kilopascal (air pressure unit)  ........... 240
L
Labels  
Certification  ................................... 346
Emission control information  .........347
Tire and Loading Information
placard ........................................... 227
Tire inflation pressure  ....................220
Lamps, exterior  
Exterior lamp switch  ........................93
Front  .............................................. 312
Messages in the multifunction
display  ........................................... 293
Rear  ............................................... 312
Switching on/off .............................. 93
Lamps, indicator and warning  
ABS .......................................... 28, 298
Brakes  ..................................... 28, 299
Center console  ................................ 31
Distance warning
lamp  .............................. 146, 151, 302
Engine malfunction  ..................29, 303
ESP ®
 ........................................ 28, 301
Fog lamps  ........................................ 95
Front passenger front air bag off
(Canada only)  .......................... 46, 305
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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 

Exterior view .......................................26
Cockpit .................................................27
Instrument cluster ..............................28
Multifunction steering wheel .............30
Center console ....................................31
Overhead control panel ......................32
Door control panel ..............................33
25At a glance164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 25   

CockpitFunctionPage:Cruise control lever:Cruise control141Distronic144;Instrument cluster28,
117
=Multifunction steering
wheel
30,
119
?Horn ASteering wheel gearshift
control115
BGear selector lever109CFront Parktronic warning
indicators 161
DOverhead control panel32EGlove box lid release, glove
box lock193
FGlove box192GPower outlet197HCenter console31FunctionPageIStarter switch79JSteering wheel adjustment,
manual86
KOn-board diagnostics
(OBD) socket
LHood lock release212MParking brake release107NParking brake pedal107ODoor control panel33PExterior lamp switch93QSteering wheel adjustment,
electrical86
Heated steering wheel88RCombination switch:Turn signals95Wipers98High beam96Cockpit27At a glance164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 27Z   

Instrument clusterFunctionPage:# Left turn signal
indicator lamp  
;To dim instrument cluster
illumination118
=Reset button for: Trip odometer118Settings129?To brighten instrument
cluster illumination118
A! Right turn signal
indicator lamp
BClock 132CSpeedometer with: ! Antilock Brake
System (ABS) indicator
lamp 298
È Variable speed limiter
indicator lamp2FunctionPage$ Brake warning lamp,
USA only 299
d ESP® warning lamp 301· Distance warning
lamp3302
J Brake warning lamp,
Canada only299
h Combination low tire
pressure/TPMS
malfunction telltale, USA
only 
223,
304
2Lamp without function. It illuminates when the ignition is on. It should go out when the engine is running.3Vehicles without Distronic: Warning lamp without function. It illuminates when the ignition is on. It shouldgo out when the engine is running.
28Instrument clusterAt a glance
164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 28   

FunctionPageDMultifunction display with:Trip odometer118Main odometer121ETachometer with: 7 Seat belt telltale  51,
300
% Preglow indicator
lamp, diesel engine only  104
oré Recuperative Brake
System (RBS) warning
lamp, ML 450 HYBRID only4
+ Supplemental
Restraint System (SRS)
indicator lamp  
36,
301
L Low-beam headlamp
indicator lamp  93
; Engine malfunction
indicator lamp, Canada only303
! Engine malfunction
indicator lamp, USA only  303
K High-beam headlamp
indicator lamp  96
FunctionPageFuel gauge with: Fuel tank
reserve warning lamp   303
8 Fuel filler flap
indicator: The fuel filler flap
is located on the rear right-
hand side.
GMultifunction display with:Outside temperature
indicator or digital
speedometer (depending
on selected setting in the
control system)
123,
131
Transmission position
indicator112
Gear range indicator114Automatic transmission
program mode indicator114
Rear window wiper
indicator100
Downhill Speed Regulator
(DSR) indicator153
Off-road driving program
indicator1554See separate HYBRID Supplemental Operating Instructions.Instrument cluster29At a glance164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 29Z