
D
Dashboardsee Instrument cluster
Data
see Technical data
Daytime running lamps
Display message ............................ 246
Switching on/off (on-board com-
puter) ............................................. 231
Switching on/off (switch) .............. 116
Declarations of conformity ................. 26
DEF
Adding ........................................... 16 5
Display message ............................ 249
Filling capacity ............................... 376
Important safety notes .................. 376
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 231
Interior lighting .............................. 232
Diagnostics connection ...................... 26
Diesel .................................................. 3 75
Digital speedometer ......................... 224
DIRECT SELECT lever
Automatic transmission ................. 156
Display (cleaning instructions) ........ 310
Display messages
ASSYST PLUS ................................ 304
Calling up (on-board computer) ..... 235
Driving systems ............................. 250
Engine ............................................ 2 46
General notes ................................ 235
Hiding (on-board computer) ........... 235
KEYLESS-GO .................................. 258
Lights ............................................. 24 3
Safety systems .............................. 236
SmartKey ....................................... 258
Tires .............................................. . 255
Vehicle ........................................... 257
Distance recorder ............................. 223
see Odometer
see Trip odometer
Distance warning (warning lamp) .... 270
DISTRONIC PLUS
Activation conditions ..................... 178
Deactivating ................................... 182
Display message ............................ 253 Displays in the multifunction dis-
play ...............................................
. 181
Driving tips .................................... 182
Function/notes ............................. 176
Important safety notes .................. 176
Setting the specified minimum
distance ......................................... 180
Warning lamp ................................. 270
Doors
Automatic locking (on-board com-
puter) ............................................. 232
Automatic locking (switch) ............... 86
Central locking/unlocking
(SmartKey) ....................................... 78
Control panel ................................... 39
Display message ............................ 257
Emergency locking ........................... 86
Emergency unlocking ....................... 86
Important safety notes .................... 84
Opening (from inside) ...................... 84
Drinking and driving ......................... 170
Drive program
Automatic ...................................... 160
Display ........................................... 15 7
Display (DIRECT SELECT lever) ...... 157
Manual ........................................... 160
Driver's door
see Doors
Driving abroad
Mercedes-Benz Service ................. 305
Driving lamps
see Daytime running lamps
Driving safety systems
ABS (Anti-lock Braking System) ....... 68
BAS (Brake Assist System) .............. 69
BAS PLUS (Brake Assist System
PLUS) ............................................... 69
EBD (electronic brake force distri- bution) ............................................ . 73
ESP ®
(Electronic Stability Pro-
gram) .............................................. . 70
ETS/4ETS (Electronic Traction
System) ........................................... 70
Important safety information ........... 68
Overview .......................................... 68
PRE-SAFE ®
Brake ............................. 73
8Index

Remote fault diagnosis .................. 293
Remote vehicle locking .................. 292
Roadside Assistance button .......... 289
Search & Send ............................... 292
Self-test ......................................... 288
Speed alert .................................... 294
System .......................................... 288
Triggering the vehicle alarm ........... 295
Vehicle remote unlocking .............. 292
Mechanical key
Function/notes ................................ 80
Locking vehicle ................................ 86
Unlocking the driver's door .............. 86
Media Interface
see Separate operating instructions
Memory card (audio) ......................... 226
Memory function ............................... 112
Message memory (on-board com-
puter) .................................................. 2 35
Messages
see Display messages
Mirrors
see Exterior mirrors
see Rear-view mirror
see Vanity mirror (in the sun visor)
Mobile phone
Menu (on-board computer) ............ 227
Modifying the programming
(SmartKey) ........................................... 80
MOExtended tires .............................. 315
Mounting wheels
Lowering the vehicle ...................... 359
Mounting a new wheel ................... 358
Preparing the vehicle ..................... 356
Raising the vehicle ......................... 357
Removing a wheel .......................... 358
Securing the vehicle against roll-
ing away ........................................ 356
MP3
Operation ....................................... 226
see separate operating instructions
Multifunction display
Function/notes ............................. 222
Permanent display ......................... 231
Multifunction steering wheel
Operating the on-board computer .. 221
Overview .......................................... 35N
Navigation
Menu (on-board computer) ............ 225
see separate operating instructions
NECK-PRO head restraints
Operation ......................................... 54
Resetting triggered .......................... 55
NECK-PRO luxury head restraints
Operation ......................................... 54
Resetting when triggered ................. 55
Notes on breaking-in a new vehi-
cle ................................................... .... 148
O
Occupant Classification System
(OCS)
Faults .............................................. . 53
Operation ......................................... 49
System self-test ............................... 52
Occupant safety
Air bags ........................................... 44
Children in the vehicle ..................... 61
Occupant Classification System
(OCS) ............................................... 49
Pets in the vehicle ........................... 67
PRE-SAFE ®
(anticipatory occu-
pant protection) ............................... 54
SRS (Supplemental Restraint Sys- tem) ............................................... .. 43
System overview .............................. 42
OCS
Faults ............................................. .. 53
Operation ......................................... 49
System self-test ............................... 52
Odometer ........................................... 223
Off-road system
4MATIC .......................................... 185
Oil
see Engine oil
On-board computer
Assistance menu ........................... 228
Audio menu ................................... 226
Convenience submenu .................. 233
Display messages .......................... 235
Displaying a service message ........ 305
Factory settings submenu ............. 234
Index13

TIN (Tire Identification Number)
(definition) ..................................... 354
Tire bead (definition) ...................... 354
Tire pressure (definition) ................ 354
Tire pressures (recommended) ...... 352
Tire size (data) ............................... 360
Tire size designation, load-bearing capacity, speed rating .................... 349
Tire tread ....................................... 333
Tire tread (definition) ..................... 354
Total load limit (definition) ............. 355
Traction ......................................... 34 7
Traction (definition) ....................... 354
Tread wear ..................................... 347
TWR (permissible trailer drawbar
noseweight) (definition) ................. 354
Uniform Tire Quality Grading
Standards ...................................... 347
Uniform Tire Quality Grading
Standards (definition) .................... 352
Wear indicator (definition) ............. 355
Wheel and tire combination ........... 362
Wheel rim (definition) .................... 352
see Flat tire
Top Tether ............................................ 65
Tow-starting
Emergency engine starting ............ 328
Important safety notes .................. 325
Towing a trailer
Active Parking Assist ..................... 193
Cleaning the trailer tow hitch ......... 310
Coupling up a trailer ...................... 214
Decoupling a trailer ....................... 216
Driving tips .................................... 212
Important safety notes .................. 212
Installing the ball coupling ............. 214
Lights display message .................. 243
Mounting dimensions .................... 381
Power supply ................................. 217
Removing the ball coupling ............ 217
Storing the ball coupling ................ 217
Trailer loads ................................... 381
Towing away
Important safety guidelines ........... 325
Installing the towing eye ................ 326
Removing the towing eye ............... 326
With both axles on the ground ....... 327
With the rear axle raised ................ 327 Trailer coupling
see Towing a trailer
Trailer loads and drawbar nose-
weights ............................................... 216
Trailer towing
Active Blind Spot Assist ................. 209
Active Lane Keeping Assist .... 206, 212
Blind Spot Assist ............................ 205
PARKTRONIC ................................. 188
Permissible trailer loads and
drawbar noseweights ..................... 216
Transfer case ..................................... 162
Transmission
see Automatic transmission
Transmission position display ......... 157
Transmission position display
(DIRECT SELECT lever) ...................... 157
Transporting the vehicle .................. 327
Trim pieces (cleaning instruc-
tions) .................................................. 3 11
Trip computer (on-board com-
puter) .................................................. 2 23
Trip odometer
Calling up ....................................... 223
Resetting (on-board computer) ...... 224
Turn signals
Changing bulbs (front) ................... 124
Display message ............................ 244
Switching on/off ........................... 118
TWR (Tongue Weight Rating) (defi-
nition) ................................................. 35 4
Type identification plate
see Vehicle identification plate
U
UnlockingEmergency unlocking ....................... 86
From inside the vehicle (central
unlocking button) ............................. 85
V
Vanity mirror (in the sun visor) ........ 283
Vehicle
Correct use ...................................... 27
Data acquisition ............................... 28
Display message ............................ 257
Index19

Information for customers in Califor-
nia
Under California law you may be entitled to areplacement of your vehicle or a refund of thepurchase price or lease price, if after a rea-
sonable number of repair attempts
Mercedes-Benz USA, LLC and/or its author-
ized repair or service facilities fail to fix one or
more substantial defects or malfunctions in
the vehicle that are covered by its express
warranty. During the period of 18 months
from original delivery of the vehicle or the
accumulation of 18,000 miles (approximately 29,000 km) on the odometer of the vehicle,
whichever occurs first, a reasonable number
of repair attempts is presumed for a retail
buyer or lessee if one or more of the following occurs:
(1) the same substantial defect or malfunc- tion results in a condition that is likely to
cause death or serious bodily injury if the
vehicle is driven, that defect or malfunc-
tion has been subject to repair two or
more times, and you have directly noti-
fied Mercedes-Benz USA, LLC in writing
of the need for its repair,
(2) the same substantial defect or malfunc- tion of a less serious nature than cate-
gory (1) has been subject to repair four or
more times and you have directly notifiedus in writing of the need for its repair, or
(3) the vehicle is out of service by reason of repair of the same or different substantial
defects or malfunctions for a cumulative
total of more than 30 calendar days.
Please send your written notice to:
Mercedes-Benz USA, LLC
Customer Assistance Center
One Mercedes Drive
Montvale, NJ 07645-0350
Maintenance
The Service and Warranty Booklet describes
all the necessary maintenance work which
should be done at regular intervals.
Always have the Service and Warranty Book-
let with you when you bring the vehicle to an authorized Mercedes-Benz Center. The ser-
vice advisor will record every service for you
in the Service and Warranty Booklet.
Roadside Assistance
The Mercedes-Benz Roadside Assistance
Program offers technical help in the event of a breakdown. Calls to the toll-free Roadside
Assistance Hotline are answered by our
agents 24 hours a day, 365 days a year.
1-800-FOR-MERCedes(1-800-367-6372)
(USA)
1-800-387-0100 (Canada)
For additional information, refer to the
Mercedes-Benz Roadside Assistance Pro-
gram brochure (USA) or the "Roadside Assis-
tance" section in the Service and Warranty
booklet (Canada). You will find both in your
vehicle literature portfolio.
Change of address or change of own-
ership
In the event of a change of address, please
send us the "Notification of Address Change" in the Service and Guarantee booklet or sim-
ply call the Mercedes-Benz Customer Assis-
tance Center (USA) at the hotline number
1-800-FOR-MERCedes(1-800-367-6372) or
Customer Service Center (Canada) at
1-800-387-0100. This will assist us in con-
tacting you in a timely manner should the
need arise.
If you sell your Mercedes, please leave the
entire literature in the vehicle so that it is
available to the next owner.
If you have purchased a used car, please send
us the "Notification of Used Car Purchase" in
24Introduction

are indicated by the flashing of red warning
lamp :. There are no further warning tones.
Switching on Blind Spot Assist X Make sure that Blind Spot Assist
(Y page 229) is activated in the on-board
computer.
X Turn the SmartKey to position 2 in the igni-
tion lock.
Warning lamps : in the exterior mirrors
light up red for approximately 1.5 seconds
and then turn yellow.
Towing a trailer
When you attach a trailer, make sure you have
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. In this event, Blind Spot
Assist is deactivated. The indicator lamp
lights up yellow in the exterior mirrors and the
Blind Spot Assist Currently UnavailZ
able See Operator's Manual message
appears in the multifunction display.
iYou can deactivate the indicator lamps in
the exterior mirrors.
To do so, switch off Blind Spot Assist when:
R the SmartKey is in position 2 in the igni-
tion lock
R the engine is not running
R the electrical connection to the trailer
has been established
Lane Keeping Assist
General notes
Lane Keeping Assist monitors the area in
front of your vehicle with camera :, which is
mounted at the top of the windshield. Lane
Keeping Assist detects lane markings on the
road and warns you before you leave your
lane unintentionally.
:Active Lane Keeping Assist camera
If you select
km on the on-board computer in
the
Display Unit Speed-/Odometer func-
tion ( Y page 230), Lane Keeping Assist is
active starting at a speed of 60 km/h. If the
miles display unit is selected, the assistance
range begins at 40 mph.
A warning may be given if a front wheel
passes over a lane marking. It will warn you by
means of intermittent vibration in the steer-
ing wheel for up to 1.5 seconds.
Important safety notes
If you fail to adapt your driving style, Lane
Keeping Assist can neither reduce the risk of
an accident nor override the laws of physics. Lane Keeping Assist cannot take into accountthe road, traffic and weather conditions. Lane
Keeping Assist is merely an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
GWARNING
Lane Keeping Assist may not always clearly
recognize lane markings.
In this case, Lane Keeping Assist may:
R give an unnecessary warning
R not give a warning
There is a risk of an accident.
Always pay particular attention to the traffic
situation and stay in lane, in particular if
warned by Lane Keeping Assist.
Driving systems205
Driving and parking
Z

Active Lane Keeping Assist
General notes
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of camera :
mounted at the top of the windshield. Active
Lane Keeping Assist detects lane markings on
the road and warns you before you leave your
lane unintentionally. If you do not react to the
warning, a lane-correcting application of the
brakes can bring the vehicle back into the
original lane.
:Active Lane Keeping Assist camera
If you select
km on the on-board computer in
the
Display Unit Speed-/Odometer func-
tion ( Y page 230), Active Lane Keeping Assist
is activated starting at a speed of 60 km/h. If
the
miles display unit is selected, the assis-
tance range begins at 40 mph.
Important safety notes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of accident nor override the laws of phys-
ics. Lane Keeping Assist cannot take into
account the road, traffic and weather condi-
tions. Lane Keeping Assist is merely an aid.
You are responsible for the distance to the
vehicle in front, for vehicle speed, for braking in good time and for staying in your lane.
Active Lane Keeping Assist cannot continu-
ously keep your vehicle in its lane.
GWARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
R give an unnecessary warning and then
make a course-correcting brake application
to the vehicle
R not give a warning or intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, especially
if Active Lane Keeping Assist alerts you. Ter-
minate the intervention in a non-critical driv-
ing situation.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray
R there is glare, e.g. from oncoming traffic,
the sun or reflections (e.g. when the road
surface is wet)
R the windshield is dirty, fogged up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R there are no, several or unclear lane mark-
ings for a lane, e.g. in areas with road con- struction work
R the lane markings are worn away, dark or
covered up, e.g. by dirt or snow
R the distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
R the road is narrow and winding
R there are highly variable shade conditions
on the roadway
R no vehicle is detected in the adjacent lane
and there are broken lane markings
Warning vibration in the steering wheel
A warning may be given if a front wheel
passes over a lane marking. It will warn you by
210Driving systems
Driving and parking

XTo display menu bar ;: press the =
or ; button on the steering wheel.
Menu bar ; disappears after a few sec-
onds.
Text field : shows the selected menu or
submenu as well as display messages.
iYou can set the time using the Audio sys-
tem or COMAND (see the separate operat-
ing instructions).
The following messages may appear in the
multifunction display: Z Gearshift recommendation when
shifting manually ( Y page 160)
X j Y
Active Parking Assist ( Y page 189)
CRUISECruise control ( Y page 175)
¤ ECO start/stop function
(Y page 152)
ë HOLD function ( Y page 184)
Menus and submenus
Menu overview
Operating the on-board computer
(Y page 221).
Depending on the equipment installed in the
vehicle, you can call up the following menus:
R
Trip menu ( Y page 223)
R
Navi menu (navigation instructions)
( Y page 225)
R
Audio menu ( Y page 226)
R
Tel menu (telephone) ( Y page 227)
R
DriveAssist menu (assistance)
( Y page 228)
R
Serv. menu ( Y page 230)
R
Sett. menu (settings) ( Y page 230)
The
Audio, Navi and Tel menus differ slightly
in vehicles with an audio system and in vehi-
cles with COMAND. The examples given in
this Operator's Manual apply to vehicles
equipped with COMAND.
Trip menu
Standard display
X Press and hold the % button on the
steering wheel until the
Trip menu with
trip odometer : and odometer ; is
shown.
Trip computer "From Start" or "From
Reset"
Example: trip computer "From Start" :
Distance
;Driving time
=Average speed
?Average fuel consumption
X Press the = or ; button on the steer-
ing wheel to select the
Trip menu.
X Press the 9 or : button to select
From Start or From Reset.
The values in the
From Start submenu are
calculated from the start of a journey,
whereas the values in the
From Reset sub-
menu are calculated from the last time the
submenu was reset ( Y page 224).
The
From Start trip computer is automati-
cally reset if:
R the ignition has been switched off for more
than four hours.
R 999 hours have been exceeded.
R 9,999 miles have been exceeded.
Menus and submenus223
On-board computer and displays
Z

The From Reset trip computer is automati-
cally reset if the value exceeds 9,999 hours or
99,999 miles.
Displaying the range and current fuel
consumption
X Press the = or ; button on the steer-
ing wheel to select the
Trip menu.
X Press the 9 or : button to select the
current fuel consumption and approximate
range.
The approximate range that can be covered
depends on the fuel level and your current
driving style. If there is only a small amount of
fuel left in the fuel tank, the display shows a
vehicle being refueled C instead of the
range.
ECO display
Example: ECO display
X Press the = or ; button on the steer-
ing wheel to select the
Trip menu.
X Press the 9 or : button to select
ECO DISPLAY.
If the ignition remains switched off for longer than four hours, the ECO display will be auto- matically reset.
For further information on the ECO display,
see ( Y page 170).
Digital speedometer
X
Press the = or ; button on the steer-
ing wheel to select the
Trip menu.
X Press the 9 or : button to select the
digital speedometer.
A gearshift recommendation Z can also be
displayed.
Observe the information on gearshift rec-
ommendation Z when shifting manually
( Y page 160).
Resetting values
Example: resetting the trip computer "From Start"
X
Press the = or ; button on the steer-
ing wheel to select the
Trip menu.
X Press the 9 or : button to select the
function that you wish to reset.
X Press the a button.
X Press the : button to select
Yes and
press the a button to confirm.
You can reset the values of the following func-
tions:
R Trip odometer
R "From Start" trip computer
R "From Reset" trip computer
R ECO display
iIf you reset the values in the ECO display,
the values in the "From start" trip computer are also reset. If you reset the values in the
224Menus and submenus
On-board computer and displays