
Setting the date/time formatsee also Digital Operator's Man-
ual .................................................. 269
Setting the language
see also Digital Operator's Man-
ual .................................................. 269
Setting the time
see also Digital Operator's Man-
ual .................................................. 269
Settings
Factory (on-board computer) ......... 226
On-board computer ....................... 221
SETUP (on-board computer) .............226
Side impact air bag .............................5 0
Side marker lamp (display mes-
sage) ................................................... 241
Side windows
Cleaning ......................................... 322
Convenience closing feature ............ 92
Convenience opening feature ..........9 2
Important safety information ........... 90
Opening/closing .............................. 91
Problem (malfunction) .....................9 3
Resettin g........................................ .93
Reversin gfeature ............................ .91
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 269
Skibag ................................................ 285
Sliding sunroof
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 80
Changing the programming .............7 9
Checking the battery ...................... .80
Convenience closing feature ............ 92
Convenience opening feature .......... 92
Dis play message ............ ...
............. 257
Door central locking/unlocking ...... .77
Important safety notes .................... 77
KEYLESS-GO start function .............. 79
Loss .................................................8 1
Mechanical key ................................ 79
Overview .......................................... 77
Positions (ignition lock) ................. 145
Problem (malfunction) ..................... 81
Starting the engine ........................ 147 Smartphone
Starting the engine ........................ 147
SMS
see also Digital Operator's Man-
ual .................................................. 269
Snow chains ...................................... 345
Sockets
Center console .............................. 296
General notes ................................ 296
Rear compartment .........................2 96
Trunk ............................................. 297
Sound
Switching on/off ........................... 270
Special seat belt retractor .................. 59
Specialist workshop ............................ 30
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 225
Digital ............................................ 215
In the Instrument cluster ................. 35
Segments ...................................... 210
Selecting the display unit ...............2 25
Standing lamps
Display message ............................ 241
Switching on/off ........................... 125
Start/Stop button
General notes ................................ 145
Key positions ................................. 146
Removing ....................................... 146
Starting the engine ........................ 147
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 146
STEER CONTROL .................................. 75
Ste
ering
Display message ............................ 257
Warning lamps ............................... 268
Steering Assist
see DISTRONIC PLUS
Steering Assist and Stop&Go Pilot
(DISTRONIC PLUS)
Display message ............................ 250
Steering assistant STEER CON-
TROL
see STEER CONTROL
Index19 

Traction (definition) ....................... 362
Tread wear .....................................356
Uniform Tire Quality Grading
Standards ...................................... 356
Uniform Tire Quality Grading
Standards (definition) .................... 360
Wear indicator (definition) ............. 362
Wheel and tire combination ........... 367
Wheel rim (definition) .................... 361
see Flat tire
Top Tether ............................................ 62
Touchpad
Changing the station/music
track .............................................. 272
Character suggestions ................... 271
Deleting characters ....................... 272
Entering a space ............................ 272
Entering characters ....................... 271
Gesture control .............................. 271
Handwriting recognition ................ 272
Operating the touchpad ................. 271
Overview ........................................ 271
Quick access for Audio .................. 272
Quick access for telephone ........... 272
Switching ....................................... 271
Switching input line ....................... 272
Tow-starting
Emergency engine starting ............ 340
Important safety notes .................. 338
Towing a trailer
ESP
®(Electronic Stability Pro-
gram) ............................................... 72
Towing away
Important safety guidelines ........... 338
Installing the towing eye ................ 339
Notes for 4MATIC vehicles ............ 340
Removing the towing eye ...............3 39
Transporting the vehicle ................ 340
With both axles on the ground ....... 339
Towing eye ......................................... 327
Traffic reports
see also Digital Operator's Man-
ual ..................................................2 69
Traffic Sign Assist
Activating ....................................... 200
Display message ............................ 249
Function/notes .............................1 99
Important safety notes .................. 200 Instrument cluster display .............
200
Sw
itching on/off ........................... 222
Transfer case ..................................... 159
Transmission
see Automatic transmission
Transporting the vehicle .................. 340
Trim pieces (cleaning instruc-
tions) ..................................................3 25
Trip computer (on-board com-
puter) ..................................................2 15
Trip odometer
Calling up ....................................... 214
Resetting (on-board computer) ...... 215
Trunk
Emergency release .......................... 90
Emergency release button ...............9 0
Important safety notes .................... 85
Locking separately ........................... 89
Opening/closing (automatically
from inside) ...................................... 89
Opening/closing (automatically
from outside) ................................... 86
Opening/closing (from outside,
HANDS-FREE ACCESS) .................... 87
Opening/closing (manually from
outside) ............................................ 86
Power closing .................................. 84
Trunk lid
Display message ............................ 255
Obstacle recognition ........................ 85
Opening dimensions ...................... 376
Opening/closing .............................. 85
Trunk load (maximum) ...................... 376
Turn signals
Display message ............................ 241
Switching on/off ........................... 125
Two-way radio
Frequencies ................................... 369
Installation ..................................... 369
Transmission output (maximum) .... 369
Windshield (infrared reflective) ...... 311
Type identification plate
see Vehicle identification plate
U
UnlockingEmergency unlocking ....................... 84
22Index 

From inside the vehicle (central
unlocking button) ............................. 83
Upshift indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 226
USB devices
Connecting to the Media Inter-
face ............................................... 279
V
Vanity mirror (in the sun visor) ........ 292
Vehicle
Correct use ...................................... 30
Data acquisition ............................... 31
Display message ............................ 254
Equipment ....................................... 27
Individual settings .......................... 221
Limited Warranty ............................. 31
Loading .......................................... 353
Locking (in an emergency) ............... 84
Locking (SmartKey) .......................... 77
Lowering ........................................ 367
Maintenance .................................... 28
Operating safety .............................. 29
Parking .......................................... 162
Parking for a long period ................ 164
Pulling away ................................... 148
Raising ........................................... 364
Reporting problems ......................... 30
Securing from rolling away ............ 363
Towing away .................................. 338
Transporting .................................. 340
Unlocking (in an emergency) ........... 84
Unlocking (SmartKey) ...................... 77
Vehicle data ................................... 376
Vehicle dimensions ........................... 376
Vehicle emergency locking ................ 84
Vehicle identification number
see VIN
Vehicle identification plate .............. 370
Vehicle level
Active Body Control ABC ............... 180
AIRMATIC ...................................... 182
Display message ............................ 245
Vehicle tool kit .................................. 327
Video
Operating the DVD ......................... 219 see also Digital Operator's Man-
ual .................................................. 269
Video-AUX
Connecting an external video
source ............................................ 279
VIN
Type plate ...................................... 370
W
Warning and indicator lampsABS ................................................ 261
Brakes ........................................... 260
Check Engine ................................. 264
Coolant .......................................... 264
Distance warning ........................... 266
ESP
®.............................................. 261
ESP®OFF ....................................... 263
Fuel tank ........................................ 264
General notes ................................ 258
Overview .......................................... 35
Parking brake ................................ 263
PASSENGER AIR BAG ...................... 43
Reserve fuel ................................... 264
Restraint system ............................ 263
Seat belt ........................................ 259
Steering ......................................... 268
Tire pressure monitor .................... 267
Warranty .............................................. 27
Washer fluid
Display message ............................ 257
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 269
Wheel and tire combinations
Tires ............................................... 367
Wheel bolt tightening torque ........... 367
Wheel chock ...................................... 363
Wheels
Changing a wheel .......................... 362
Checking ........................................ 343
Cleaning ......................................... 322
Important safety notes .................. 343
Information on driving .................... 343
Interchanging/changing ................ 362
Mounting a new wheel ................... 366
Mounting a wheel .......................... 363
Removing a wheel .......................... 366
Index23 

Cockpit
FunctionPage
:Steering wheel paddle shift-
ers156
;Combination switch125
=Horn
?Instrument cluster35
ADIRECT SELECT lever152
BOverhead control panel39
CControl panel for:
ÜLowering the rear seat
head restraints111
u Extending/retracting
the rear window roller sun-
blind
293
PASSENGER AIRBAG indica-
tor lamps43
Adjusting the brightness of
the instrument lighting and
the multimedia system dis-
play
DIgnition lock145
Start/Stop button145
FunctionPage
EClimate control systems132
FAdjusts the steering wheel115
Steering wheel heating115
GCruise control lever170
HElectric parking brake163
IDiagnostics connection30
JOpens the hood312
KLight switch124
LControl panel for:
Activating Steering Assist
and Stop&Go Pilot177
Switching on Active Lane
Keeping Assist206
Deactivating PARKTRONIC184
Switching on the 360° cam-
era194
Activating Night View Assist200
Switching on the head-up
display212
34Cockpit
At a glance 

Door controlpanel
FunctionPage
:s Seat ventilation113
;c Seat heatin g112
=w Adjust sth efront-
passenger seat from th e
driver’s seat
10 3
?r 45=
Stores settings for the seat,
exterior mirrors and steering
column
120
AAdjusts the seats electrically101
B7Zª\
Adjusts and folds the exterior
mirrors in/out electrically
117
CW Opens/closes the right
side window90
FunctionPage
DW Opens/closes the rear
right side window90
Ep Opens/closes the
trunk lid89
Fn Override feature for the
controls in the rear compart-
ment
65
GOpens the door83
H%&Unlocks/locks
the vehicle83
IW Opens/closes the rear
left side window90
JW Opens/closes the left
side window90
40Door control panel
At a glance 

Panic alarm
XTo arm:press!button :for approx-
imately one second.
A visual and audible alarm is triggered if the
alarm system is armed.
XTo disarm: press!button :again.
or
XInsert the SmartKey into the ignition lock.
or
XPress the Start/Stop button.
The SmartKey must be in the vehicle.
Occupant safety
Introduction to the restraint system
The restraint system can reduce the risk of vehi- cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
The restraint system can also reduce the forces to which vehicle occupants are subjected during
an accident.
The restraint system comprises:
Rseat belt system
Rair bags
Rchild restraint system
Rchild seat securing systems
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all vehicle occupants:
Rhave fastened their seat belts correctly
(Ypage 45)
Rhave adjusted their seat and head restraint
properly (Ypage 100). As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct
driver's seat position (
Ypage 100).
You also have to make sure that an air bag can
inflate properly if deployed (
Ypage 48).
An air bag supplements a correctly worn seat
belt. As an additional safety device, the air bag
increases the level of protection for vehicle
occupants in the event of an accident. For exam-
ple, if, in the event of an accident, the protection
offered by the seat belt is sufficient, the air bags are not deployed. When an accident occurs, only
the air bags that increase protection in that par-ticular accident situation are deployed. How-
ever, seat belts and air bags generally do not
protect against objects penetrating the vehicle
from the outside.
Information on restraint system operation can
be found under "Triggering of the Emergency
Tensioning Devices and air bags" (
Ypage 55).
For information on children traveling with you in
the vehicle and on child restraint systems, see
"Children in the vehicle" (
Ypage 59).
Important safety notes
GWARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an
accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify components of the
restraint system to accommodate a person
with disabilities, contact an authorized
Mercedes-Benz Center for details. USA only:
for further information contact our Customer
Assistance Center at 1-800-FOR-MERCedes
(1‑800‑367‑6372).
Mercedes-Benz recommends that you only use
driving aids which have been approved specifi-
cally for your vehicle by Mercedes-Benz.
42Occupant safety
Safety 

occupant in the best position in relation to the
air bag.
The seat belt system comprises:
RSeat belts
REmergency Tensioning Devices for the front
seat belts and the outer seat belts in the rear
RSeat belt force limiters for the front seat belts
and the outer seat belts in the rear
RBelt bags for the outer seat belts in the rear,
depending on the vehicle's equipment
If the seat belt is pulled out of the belt outlet
quickly or with a jerky movement, the belt
retractor locks. The belt strap cannot be extrac-
ted any further.
The Emergency Tensioning Device tightens the
seat belt in an accident, pulling the belt close
against the body. However it does not pull the
vehicle occupant back in the direction of the
backrest.
The Emergency Tensioning Device does not cor-
rect an incorrect seat position or the routing of
an incorrectly fastened seat belt.
When triggered, a seat belt force limiter helps to reduce the force exerted by the seat belt on the
vehicle occupant.
The seat belt force limiters for the front seats are
synchronized with the front air bags, which
absorb part of the deceleration force. This can
reduce the force exerted on the vehicle occu-
pants during an accident.
!If the front-passenger seat is unoccupied,
do not insert the belt tongue into the buckle of
the front-passenger seat. This may otherwise
lead to the triggering of the Emergency Ten-
sioning Device in the event of an accident,
which will then need to be replaced.
Important safety notes
The use of seat belts and child restraint systems
is required by law in:
Rall 50 states
Rthe U.S. territories
Rthe District of Columbia
Rall Canadian provinces
Even where this is not required by law, all vehicle
occupants should correctly fasten their seat
belts before starting the journey.
GWARNING
If the seat belt is not worn correctly, it cannot
perform its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury
or even fatal injury.
Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sit-
ting properly.
GWARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
GWARNING
Objects next to the front seat that block the
belt buckle or the moving belt anchorage on
the front seat impair the function of the Emer- gency Tensioning Devices. The Emergency
Tensioning Devices may not function as inten-
ded and the seat belt may no longer provide
the intended protection. This poses an
increased risk of injury or even fatal injury.
Before starting the journey, make sure that
there are no objects around the belt buckle or between the front seat and door.
GWARNING
Persons less than 5 ft (1.50 m) tall cannot
wear the seat belt correctly without an addi-
tional and suitable restraint system. If the
seat belt is not worn correctly, it cannot per-
form its intended protective function. An
44Occupant safety
Safety 

When using a child restraint system, always
ensure that the seat is correctly adjusted andthat the backrest is almost vertical.
If you install a child restraint system on the rear
reclining seat, always observe:
Rthe instructions and safety notes in "Children in the vehicle" (Ypage 59)
Rthe child restraint system manufacturer's
installation instructions
Occupant Classification System
(OCS)
Introduction
The Occupant Classification System (OCS) cat-
egorizes the person in the front-passenger seat.
Depending on that result, the front-passenger
front air bag is either enabled or deactivated.
The system does not deactivate:
Rthe side impact air bag
Rthe window curtain air bag
Rthe Emergency Tensioning Devices
Requirements
To be classified correctly, the front passenger
must sit:
Rwith the seat belt fastened correctly
Rin an almost upright position with their back
against the seat backrest
Rwith their feet resting on the floor, if possible
If the front passenger does not observe these
conditions, OCS may produce a false classifica-
tion, e.g. because the front passenger:
Rtransfers their weight by supporting them-
selves on a vehicle armrest
Rsits in such a way that their weight is raised
from the seat cushion
If it is absolutely necessary to install a child
restraint system on the front-passenger seat, be
sure to observe the correct positioning of the
child restraint system. Never place objects
under or behind the child restraint system, e.g. a
cushion. Fully retract the seat cushion length.
The entire base of the child restraint system
must always rest on the seat cushion of the
front-passenger seat. The backrest of the
forward-facing child restraint system must lie as flat as possible against the backrest of the front-
passenger seat.
The child restraint system must not touch the
roof or be subjected to a load by the head
restraint. Adjust the angle of the seat backrest
and the head restraint position accordingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint sys-
tem manufacturer's installation and operating
instructions.
Occupant Classification System opera-
tion (OCS)
:PASSENGER AIR BAG ON indicator lamp
;PASSENGER AIR BAG OFF indicator lamp
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled.
XPress the Start/Stop button once or twice, or
turn the SmartKey to position 1or 2in the
ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF and PASSENGER AIR BAG ON indicator lamps must light up simul-
taneously for approximately six seconds.
The indicator lamps display the status of the
front-passenger front air bag.
RPASSENGER AIR BAG ON lights up for 60 sec-
onds, subsequently both indicator lamps are
off (PASSENGER AIR BAG ON and OFF): the
front-passenger front air bag is able to deploy
in the event of an accident.
RPASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deployed in the event of an acci-
dent.
If the PASSENGER AIR BAG ON indicator lamp is
off, only the PASSENGER AIR BAG OFF indicator
Occupant safety51
Safety
Z