
1 Contents 
IntroductionProduct information  .......................... 7
Roadside assistance ......................... 10
Where to find it  ................................ 14
Reporting Safety Defects  ................ 16Instruments and controlsInstruments and controls  ............... 18
Center console  .............................. 20
Door control panel  ....................... 22
Overhead control panel  ............... 23OperationVehicle keys  ...................................... 26
Start lock-out  .................................... 28
General notes on the 
central locking system  ............... 28
Central locking system  ................... 29
Radio frequency and 
infrared remote control  ............... 29
Locking and unlocking ................ 31Choosing global or 
selective mode on 
remote control  ...............................31
Opening and closing windows
and sliding / pop-up roof 
from outside  ................................. 32
Panic button  ................................. 33
Mechanical keys  .......................... 33
Doors  ................................................. 34
Locking and unlocking 
driver’s door manually  ............... 36
Tailgate .............................................. 37
Locking and unlocking 
the tailgate manually  .................. 38
Locking the tailgate separately  . 39
Central locking switch .................... 40
Automatic central locking ............... 41
Emergency unlocking in 
case of accident  ........................... 41
Antitheft alarm system ................... 42
Tow-away alarm  ............................... 43
Easy-entry/exit feature  .................. 44
Front seat adjustment ..................... 45Synchronizing head restraints
and seat adjustment fore, aft  ..... 47
Removal and installation of 
front seat head restraints  .......... 51
Seat heater, front  ............................. 52
Seat heater, rear  ............................... 54
Seat belts and 
integrated restraint system  ....... 56
Seat belts ........................................... 56
Seat belt nonusage 
warning system  ............................ 57
BabySmart
TM airbag 
deactivation system  .................... 63
Self-test BabySmart
TM without 
special child seat installed  ........ 63
Supplemental restraint system 
(SRS)  ............................................. 64
Emergency tensioning retractor 
(ETR)  ............................................. 65
Airbags  .............................................. 66
Safety guidelines for the 
seat belt, emergency 
tensioning retractor and 
airbag  ............................................ 71
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21 Instruments and controls
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index 11Differential-lock switch, see page 253
12Left front seat heater switch, see page 52
13Switch for rear window washer /wiper, see page 138
14Hazard warning flasher switch, see page 139
15AIRBAG OFF indicator lamp, see page 271
16Central locking switch, see page 40
17Antitheft alarm system, see page 42
Switch for Tow-away alarm, see page 4318Right front seat heater switch, see page 52
19COMAND system (Cockpit Management and Data 
System), see seperate operating instructions
20Automatic climate control, see page 140
21Ashtray with lighter, see page 168
22Automatic transmission, see page 207
23Parking brake, see page 215
24Transfer case, see page 247
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24 Contents - Operation
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
OperationVehicle keys  ...................................... 26
Start lock-out  .................................... 28
General notes on the 
central locking system  ............... 28
Central locking system  ................... 29
Radio frequency and 
infrared remote control  ............... 29
Locking and unlocking ................ 31
Choosing global or 
selective mode on 
remote control  .............................. 31
Opening and closing windows
and sliding / pop-up roof from 
outside  ........................................... 32
Panic button  .................................. 33
Mechanical keys  ........................... 33
Doors .................................................. 34
Locking and unlocking 
driver’s door manually  ................ 36
Tailgate  .............................................. 37
Locking and unlocking 
the tailgate manually  ................... 38Locking the tailgate 
separately ...................................... 39
Central locking switch .................... 40
Automatic central locking ............... 41
Emergency unlocking in 
case of accident  ........................... 41
Antitheft alarm system ................... 42
Tow-away alarm  ............................... 43
Easy-entry/exit feature  .................. 44
Front seat adjustment ..................... 45
Synchronizing head restraints 
and seat adjustment fore, aft  ..... 47
Removal and installation 
of front seat head restraints  ......51
Seat heater, front  ............................. 52
Seat heater, rear  .............................. 54
Seat belts and 
integrated restraint system  ....... 56
Seat belts  .......................................... 56
Seat belt nonusage 
warning system  ............................ 57
BabySmart
TM airbag 
deactivation system  ................... 63Self-test BabySmart
TM 
without special child seat
installed  ........................................ 63
Supplemental restraint system 
(SRS)  ............................................. 64
Emergency tensioning retractor 
(ETR)  ............................................. 65
Airbags  .............................................. 66
Safety guidelines for the 
seat belt, emergency
tensioning retractor 
and airbag  .................................... 71
Infant and child 
restraint systems  .......................... 73
Steering wheel adjustment 
(electrical)  .................................... 78
Inside rear view mirror  .................. 79
Antiglare night position  .............. 79
Exterior rear view mirrors  ............. 80
Instrument cluster  ........................... 84
Multifunction steering wheel, 
multifunction display  ................. 90
Trip and main odometer 
and sub menu  .............................. 94
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28 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Start lock-out
Important!
Removing the electronic key from the starter switch 
activates the start lock-out. The engine cannot be 
started.
Inserting the electronic key in the starter switch 
deactivates the start lock-out.
Note:
In case the engine cannot be started (vehicle’s battery is 
in order), the system is not operational. Contact an 
authorized Mercedes-Benz Light Truck Center or call 
1-800-FOR-MERCedes (in the USA), or 1-800-387-0100 
(in Canada).General notes on the central locking system
If the electronic key is inserted in the starter switch, the 
vehicle cannot be locked or unlocked with the remote 
control.
If the vehicle cannot be locked or unlocked:
•Check the batteries of the electronic key, see 
page 343, or synchronize the electronic key, see 
page 345.
•Use the mechanical key to unlock the vehicle. To 
start engine, insert the electronic key in the starter 
switch. There could be a slight delay until the 
electronic key can be turned in the starter switch.
Important!
When unlocking the driver’s door with the mechanical 
key, the exterior lamps will flash and the alarm will 
sound.
To cancel the alarm, insert the electronic key in the 
starter switch or press buttonŒ or‹ on the 
electronic key.
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33 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Panic button
To activate press and hold button (1) for at least one 
second. An audible alarm and blinking exterior lamps 
will operate for approximately 3 minutes.
To deactivate press button (1) again, or insert electronic 
key in starter switch.
Note:
For operation in the USA only: This device complies 
with Part 15 of the FCC Rules. Operation is subject to 
the following two conditions:(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, 
including interference that may cause undesired 
operation.
Any unauthorized modification to this device could void 
to the user’s authority to operate the equipment.
Mechanical keys
The mechanical keys work only in the driver’s door, 
tailgate, and storage compartment locks.
Notes:
The mechanical key does not operate the central locking 
system or arm or disarm the antitheft alarm system.
The alarm sounds when unlocking the driver’s door or 
tailgate. Cancel alarm by turning electronic key in 
starter switch to position 1, or with the remote control 
by pressing buttonŒ or ‹.
Unlocking and locking the driver’s door manually, see 
page 36.
Unlocking the tailgate manually, see page 38.
Locking the tailgate separately, see page 39.
P80.35-2034-26
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34 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Doors
To open the door, press the lock cylinder (1) and pull on 
the door handle (2).
Note:
The passenger side door cannot be unlocked using the 
mechanical key.3 Front door from inside:
Pull handle to unlock.
4Individual door from inside:
Push button down to lock.
Pull lock button up to unlock.
Important!
The mechanical key does not operate the central locking 
system or arm or disarm the antitheft alarm system.
2359
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35 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index When you lock the driver’s door with the mechanical 
key, the door lock button should move down.
Each individual door must be locked with the respective 
door lock button – the driver’s door can only be locked 
when it is closed.
Notes:
The alarm sounds when unlocking the driver’s door 
with the mechanical key. Cancel alarm by turning 
electronic key in starter switch to position 1, or with the 
remote control by pressing buttonŒ or ‹.
If the vehicle has previously been locked from the 
outside, only the door being opened from the inside will 
unlock, and the alarm will come on. The doors, the 
tailgate and fuel filler flap remain locked.
In case of a malfunction in the central locking system 
the doors can be locked and unlocked individually.To lock, push down lock buttons and turn mechanical 
key in driver’s door lock to position 4. In addition lock 
the tailgate.
To unlock the driver’s manually, see page 36.
Rear doors, previously centrally locked, can be opened 
from inside by first unlocking the vehicle with the 
central locking switch, see page 40, or by first pulling 
up the door lock button.
If the fuel filler flap cannot be opened, see page 347.
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36 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Locking and unlocking driver’s door manually
1To open, press lock cylinder
2Locking driver’s door
3Unlocking driver’s door If the vehicle cannot be locked or unlocked using the 
remote control, lock or unlock the driver’s door using 
the mechanical key.
Notes:
The alarm sounds when unlocking the driver’s door 
with the mechanical key. Cancel alarm by turning 
electronic key in starter switch to position 1.
The passenger door cannot be unlocked manually.
2
1
3
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