
Publication details
Internet
Further information about Mercedes-Benz
vehicles and about Daimler AG can be found
on the following websites
http://www.mbusa.com (USA only)
http://www.mercedes-benz.ca (Canada
only) Editorial office
You are welcome to forward any queries or
suggestions you may have regarding this
Operator's Manual to the technical
documentation team at the following
address:
Daimler AG, HPC: CAC, Customer Service,
70546 Stuttgart, Germany
© Daimler AG: Not to be reprinted, translated
or otherwise reproduced, in whole or in part,
without written permission of Daimler AG.
Symbols
Registered trademarks:
R
Bluetooth ®
is a registered trademark of
Bluetooth SIG Inc.
R DTS is a registered trademark of DTS, Inc.
R Dolby and MLP are registered trademarks
of DOLBY Laboratories.
R BabySmart™, ESP ®
and PRE-SAFE ®
are
registered trademarks of Daimler AG.
R HomeLink ®
is a registered trademark of
Prince.
R iPod ®
and iTunes ®
are registered
trademarks of Apple Inc.
R Logic7 ®
is a registered trademark of
Harman International Industries.
R Microsoft ®
and Windows media ®
are
registered trademarks of Microsoft
Corporation.
R SIRIUS is a registered trademark of Sirius
XM radio Inc.
R HD Radio is a registered trademark of
iBiquity Digital Corporation.
R Gracenote ®
is a registered trademark of
Gracenote, Inc.
R ZAGATSurvey ®
and related brands are
registered trademarks of ZagatSurvey,
LLC.
In this Operator's Manual, you will find the
following symbols: G
WARNING
Warning notes draw your attention to hazards
that endanger your health or life, or the health
or life of others. H
Environmental note
Environmental notes provide you with
information on environmentally aware actions
or disposal.
! Notes on material damage alert you to
dangers that could lead to damage to your
vehicle. i
Practical tips or further information that
could be helpful to you.
X This symbol indicates an
instruction that must be followed.
X Several of these symbols in
succession indicate an instruction
with several steps.
(Y page) This symbol tells you where you
can find more information about a
topic.
YY This symbol indicates a warning or
an instruction that is continued on
the next page.
Display
Display This font indicates a display in the
multifunction display/COMAND
display.
Parts of the software in the vehicle are
protected by copyright ©
2005
The FreeType Project
http://www.freetype.org. All rights
reserved.
As at 10.05.2012 

Plastic trim (cleaning instructions)
.375
Power closing feature .........................86
Power washers .................................. 371
Power windows see Side windows
PRE-SAFE ®
(anticipatory occupant
protection) Display message ............................ 289
Operation ........................................ .54
PRE-SAFE ®
Brake
Activating/deactivating .................272
Display message ............................ 291
Function/notes ................................ 73
Warning lamp ................................. 328
Product information ............................23
Program selector button ..................169
Protection of the environment General notes .................................. 23
Pulling away
Trailer ............................................ 160
Pulling away (automatic
transmission) ..................................... 160 Q
Qualifie dspecialis tworkshop ...........27 R
RACETIMER (on-board computer) ....279
Radar sensor system Activating/deactivating .................277
Display message ............................ 305
Radiator cover ................................... 365
Radio Selecting astation ......................... 269
see separate operating instructions
Radio-controlled devices
(installing) .......................................... 362
Reading lamp ..................................... 127
Rear axle level control (AMG
adaptive sport suspension
system) .............................................. 212
Rear compartment Setting the airv ents...................... 152
Rear fog lamp
Switching on/off ........................... 122Rear seats
Adjusting ....................................... 106
Rear view camera
Cleaning instructions .....................373
Function/notes ............................. 221
Switching on/off ........................... 222
Rear-view mirror
Anti-glare (manual )........................ 113
Dipping (automatic) .......................114
Rear window defroster
Problem (malfunction) ...................150
Switching on/off ........................... 149
Rear window wiper
Replacing the wiper blade .............. 134
Switching on/off ........................... 133
Refueling
Fuel gauge ............................... 33, 263
Important safety notes ..................173
Refueling proces s.......................... 174
see Fuel
Remote control
Programming (garage door
opener) .......................................... 359
Reporting safety defects ....................28
Reserve (fuel tank) see Fuel
Reserve fuel
Display message ............................ 301
Warning lamp ................................. 325
see Fuel
Residual heat (climate control) ........150
Restraint system see SRS (Supplemental Restraint
System)
Reversing lamps (display
message) ............................................ 297
Roadside Assistance (breakdown) ....25
Roller sunblind Panorama roof with power tilt/
sliding panel ..................................... 98
Rea rside windows ......................... 345
Roof carrier ........................................ 343
Roof lining and carpets (cleaning
guidelines) ......................................... 377
Roof load (maximum) ........................452
Route (navigation) see Route guidance (navigation) 16
Index 

qualified maintenance or repair facility for
further inspection or repairs. Declarations of conformity
Vehicle components which receive
and/or transmit radio waves USA:
"The wireless devices of this vehicle
comply with Part 15 of the FCC Rules.
Operation is subjec tto the following two
conditions: 1) These devices may not cause
harmful interference, and 2) These devices
must accept any interference received,
including interference that may cause
undesired operation. Changes or
modifications not expressly approved by the
party responsible for compliance could void
the user’s authority to operate the
equipment."
Canada: "The wireless devices of this vehicle
comply with Industry Canada license-exempt
RSS standard(s). Operation is subject to the
following two conditions: (1) These devices
may not cause interference, and (2) These
devices must accept any interference,
including interference that may cause
undesired operation of the device." Diagnostics connection
G
WARNING
If you connect equipment to the on-board
diagnostics connection, it can affect the
operation of the vehicle systems. This can
impair the operating safety of your vehicle
while driving. There is a risk of an accident.
Do not connect any equipment to the on-
board diagnostics connection. G
WARNING
Loose equipment or equipment cables which
are connected to the on-board diagnostics
connection can obstruct the area around the
pedals. The equipment or the cables could
come between the pedals in the event of sudden braking or acceleration. This may
affect the function of the pedals. There is a
risk of an accident.
Do not attach any equipment or cables in the
driver's footwell.
! If the engine is switched off and
equipment on the diagnostics connection
is used, the starter battery may discharge.
The diagnostics connection is only intended
for the connection of diagnostic equipment at
a qualified specialist workshop.
Connecting equipment to the diagnostics
connection can, for example, lead to
emissions monitoring information being
reset. This may lead to the vehicle failing to
meet the requirements of the next emissions
test during the main inspection. Qualified specialist workshop
An authorized Mercedes-Benz Center is a
qualified specialist workshop. It has the
necessary specialist knowledge, tools and
qualifications to correctly carry out the work
required on your vehicle. This is especially the
case for work relevant to safety.
Observe the notes in the Maintenance
Booklet.
Always have the following work carried out at
an authorized Mercedes-Benz Center:
R work relevant to safety
R service and maintenance work
R repair work
R alterations, installation work and
modifications
R work on electronic components Correct use
G
WARNING
There are various warning stickers affixed to
your vehicle. Their purpose is to alert you and
others to various dangers. Therefore, do not Introduction
27 Z 

Strong magnetic fields can occur in the
vicinity of powerful electrical installations.
R Do not keep the SmartKey:
- with electronic devices, e.g. a mobile
phone or another SmartKey
- with metallic objects, e.g. coins or metal
foil
- inside metallic objects, e.g. a metal case
This can affect the functionality of the
SmartKey.
Do not keep the KEYLESS-GO key in the
temperature-controlled cup holder.
Otherwise, the KEYLESS-GO key will not be
recognized. SmartKey functions
0002
000B To lock the vehicle
0003 0004 To open/close the tailgate
001F 000C To unlock the vehicle
X To unloc kcentrally: press the 000C
button.
If you do not open th evehicle within
approximately 40 seconds of unlocking:
R the vehicle is locked again.
R the theft deterrent locking system is
armed again.
X To lock centrally: press the000Bbutton.
The SmartKey centrally locks/unlocks:
R the doors
R the tailgate
R the fuel filler flap When unlocking, the turn signals flash once.
When locking, they flash three times.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated using
the on-board computer (Y
page 276).
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer (Y page 275). KEYLESS-GO
General notes Bear in mind that the engine can be started
by any of the vehicle occupants if there is a
KEYLESS-GO key in the vehicle.
Locking/unlocking centrally
You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you only need carry
the SmartKey with you. You can combine the
functions of KEYLESS-GO with those of a
conventional SmartKey. Unlock the vehicle
by using KEYLESS-GO, for instance, and lock
it using the
000Bbutton on the SmartKey.
When locking or unlocking with KEYLESS-GO,
the distance between the SmartKey and the
corresponding door handle must not be
greater than 3 ft (1 m).
KEYLESS-GO checks whether a valid
SmartKey is in the vehicle by periodically
establishing a radio connection between the
vehicle and the SmartKey. This happens:
R when the external door handles are
touched
R when starting the engine
R while the vehicle is in motion SmartKey
79Opening and closing Z 

Problems with the SmartKey
Problem Possible causes/consequences and
0001 Solutions
You cannot lock or
unlock the vehicle
using the SmartKey. The SmartKey battery is discharged or nearly discharged.
X
Try again to lock/unlock the vehicle using the remote control
function of the SmartKey. Point the tip of the SmartKey at the
driver's door handle from close range and press the 000Cor
000B button.
If this does not work:
X Check the SmartKey battery (Y page 81) and replace it if
necessary (Y page 81).
X Lock (Y page 86) or unlock (Y page 87) the vehicle using
the mechanical key. The SmartKey is faulty.
X
Lock (Y page 86) or unlock (Y page 87) the vehicle using
the mechanical key.
X Have the SmartKey checked at a qualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS-GO. There is interference from a powerful source of radio waves.
X Lock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the 000Cor000B button. There is a malfunction with KEYLESS-GO.
X Lock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the 000Cor000B button.
X Have KEYLESS-GO checked at a qualified specialist workshop.
If this does not work:
X Check the SmartKey battery (Y page 81) and replace it if
necessary (Y page 81).
X Lock (Y page 86) or unlock (Y page 87) the vehicle using
the mechanical key. You have lost a
SmartKey. X
Have the SmartKey deactivated at a qualified specialist
workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. SmartKey
83Opening and closing Z 

Problem Possible causes/consequences and
0001 Solutions
The engine cannot be
started using the
SmartKey. The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 387).
or
X Jump-start the vehicle (Y page 389).
or
X Consult a qualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle. Ad
oor is open. Therefore, the SmartKey cannot be detected as
easily.
X Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle with the SmartKey in the ignition lock. Doors
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shift the automatic transmission out of
parking position P.
R starting the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children. G
WARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system, and do not give them access
to an unlocked vehicle. Achild's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure 84
DoorsOpening and closing 

Problems with PARKTRONIC
Problem Possible causes/consequences and
0001 Solutions
Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is
deactivated after
approximately five
seconds, and the
indicator lamp in the
PARKTRONIC button
lights up. PARKTRONIC has malfunctioned and has switched off.
X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is
deactivated after
approximately five
seconds. The PARKTRONIC sensors are dirty or there is interference.
X
Cleant he PARKTRONIC sensors (Y page 373).
X Switch the ignition back on. The problem may be caused by an external source of radio or
ultrasound waves.
X See if PARKTRONIC functions in a different location. Active Parking Assist
Important safety notes Active Parking Assist is merely an aid. It is not
a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking
and exiting a parking space. When
maneuvering, parking or pulling out of a
parking space, make sure that there are no
persons, animals or objectsint he area in
which you are maneuvering. G
WARNING
The vehicle swings out when parking and in
doing so could cross into the opposite lane.
This could result in a collision with another
road user. There is a risk of an accident.
Pay attention to other road users when
parking. Stop the vehicle if necessary or cancel the Active Parking Assist parking
procedure.
! If unavoidable, you should drive over
obstacles such as curbs slowly and not at
a sharp angle. Otherwise, you may damage
the wheels or tires.
Active Parking Assist may possibly indicate
parking spaces which are not suitable for
parking, for example:
R where parking or stopping is prohibited
R in front of driveways or entrances and exits
R on unsuitable surfaces Driving systems
217Driving and parking Z 

to the top of the display as you approach the
point of the announced change of direction.
Change of direction announced with a
lane recommendation 0002
Road into which the change of direction
leads
0003 Distance to change of directio nand visual
distance display
001F Lane recommendation
001E New lane during a change of direction
001C Uninterrupted lane
001D Change-of-direction icon
On multilane roads, the system can display
lane recommendation 001Ffor the next change
of direction. During the change of direction,
additional lanes may be displayed.
Lane recommendations are only displayed if
the relevant data is availabl eonthe digital
map.
Other status indicators of the
navigation system R
0001:y ou have reached the destination or an
intermediate destination.
R New Route... or
Calculating Route :
calculating a new route
R Off Map or
Off Mapped Road :t
he vehicle
position is outside the area of the digital
map (off-map position).
R No Route :n
o route could be calculated to
the selected destination. Audio menu
Selecting aradio station 0002
Waveband
0003 Station frequency with memory position
i Station 0003is displayed with the station
frequency or station name. The memory
position is only displayed along with
station 0003if this has bee nstored.
X Switch on COMAND and select Radio; see
the separate operating instructions.
X Press the 0002or0005 button on the
steering wheel to select the Audio menu.
X To select astore dstation: briefly press
the 0003 or0004 button.
X To select a station from the station
list: press and briefly hold the 0003
or 0004 button.
If no statio nlist is received:
X To select astation using the station
search: press and briefly hold the 0003
or 0004 button.
i For informatio nonswitching waveband
and storing stations; see the separate
operating instructions.
i SIRIUS XM satellite radio functions like a
normal radio.
For more informatio nonsatellite radio
operation, see the separate operating
instructions. Menus and submenus
269On-board computer and displays Z