
U
Unlocking
Emergency unlocking .......................77
From inside the vehicle (central
unlocking button) ............................. 76
Upshift indicator (on-board com-
puter, Mercedes-AMG vehicles)....... 190
USB devices
Connecting to the Media Inter-
face ............................................... 238
V
Vanity mirror (in the sun visor)........ 246
Vehicle
Correct use ...................................... 28
Data acquisition ............................... 29
Display message............................ 215
Equipment ....................................... 25
Individual settings .......................... 188
Limited Warranty ............................. 29
Loading .......................................... 301
Locking (in an emergency) ............... 77
Locking (SmartKey).......................... 70
Lowering ........................................ 314
Maintenance .................................... 26
Parking for a long period ................ 145
Pulling away ................................... 126
Raising ........................................... 312
Reporting problems ......................... 28
Securing from rolling away ............ 312
Transporting .................................. 287
Unlocking (in an emergency) ........... 77
Unlocking (SmartKey)...................... 70
Vehicle data ................................... 325
Vehicle data
Roof load (maximum) ..................... 325
Vehicle dimensions........................... 325
Vehicle emergency locking................ 77
Vehicle identification number
see VIN
Vehicle identification plate.............. 318
Vehicle tool kit.................................. 274
Ventilation
Setting the vents ........................... 121
Video
Operating the DVD ......................... 185
see also Digital Operator's Man-
ual .................................................. 231
VIN
Seat ............................................... 319
Type plate ...................................... 318
W
Warning and indicator lamps
ABS ................................................ 222
Active Brake Assist ........................ 229
Brakes ........................................... 221
Check Engine ................................. 226
Coolant .......................................... 227
Distance warning ........................... 229
ESP®.............................................. 223
ESP®OFF ....................................... 224
Fuel tank ........................................ 226
Overview .......................................... 33
PASSENGER AIR BAG ...................... 41
Reserve fuel ................................... 226
Restraint system ............................ 226
Seat belt ........................................ 220
SPORT handling mode ................... 224
Tire pressure monitor .................... 230
Warranty.............................................. 25
Washer fluid
Display message ............................ 218
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 231
Wheel and tire combinations
Tires ............................................... 315
Wheel bolt tightening torque........... 314
Wheel chock...................................... 312
Wheels
Changing a wheel.......................... 310
Checking ........................................ 290
Cleaning ......................................... 268
Emergency spare wheel ................. 315
Important safety notes .................. 290
Information on driving .................... 290
Interchanging/changing ................ 310
Mounting a new wheel ................... 313
Removing a wheel.......................... 313
Storing ........................................... 311
Tightening torque ........................... 314
Wheel size/tire size ....................... 315
Index21

Correct driver's seat position
GWARNING
You could lose control of your vehicle if you do
the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
Observe the following when adjusting steeringwheel C, seat belt Dand driver's seat

GWARNING
If the driver's seat is not engaged, it could
move forwards as far as the next catch during
movement such as braking or abrupt changes
of direction. As a result, you would be pushed
against your seat belt by the unsecured driv-
er's seat.
This could cause you to lose control of the
vehicle. The seat belt cannot protect as inten-
ded and could result in additional injury.
There is a risk of an accident and injury.
Before every journey, make sure that the driv-
er's seat is fully engaged.
Observe the safety notes on "Air bags"(Ypage 45) and "Children in the vehicle"(Ypage 54).
GWARNING
If the driver's seat is not engaged, it could
move unexpectedly while the vehicle is in
motion. This could cause you to lose control of
the vehicle. There is a risk of an accident.
Always make sure that the driver's seat is
engaged before starting the vehicle.
GWARNING
You could lose control of your vehicle if you do
the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
GWARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
!To prevent damage to the seats and the seatheating, observe the following notes:
RDo not spill liquids onto the seats. Dry theseats as soon as possible if liquid does getspilled on the seats.
RIf the seat covers are damp or wet, do notswitch on the seat heating. Also, do not usethe seat heating to dry the seats.
RClean the seat covers as recommended;see the "Interior care" section.
RDo not transport heavy loads on the seats.Do not place pointed objects on the seatcushions such as knives, nails or tools.Where possible, use the seats only for car-rying passengers.
RWhen operating the seat heating, do notcover the seats with insulating materials,e.g. blankets, coats, bags, protective cov-ers, child seats or booster seats.
RWhen the seat heating is switched on, theseat surface can be damaged as a result ofobjects being placed on the seats, forexample, seat cushions, child seats andprotective covers not approved byMercedes-Benz.
!Make sure that there are no objects in thefootwell under or behind the seats when mov-ing the seats back. There is a risk that theseats and/or the objects could be damaged.
iFurther related subjects:
RCargo compartment enlargement (foldingdown the rear seats) (Ypage 242)
92Seats
Seats, steering wheel and mirrors

Adjusting the head restraints
Important safety notes
GWARNING
You could lose control of your vehicle if you do
the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
GWARNING
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro-
tection as intended. There is an increased risk
of injury in the head and neck area, e.g. in the
event of an accident or when braking.
Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head
restraint supports the back of the head at
about eye level.
Using the fore-and-aft adjustment, adjust thehead restraint so that it is as close as possible toyour head.
General notes
For vehicles with sports seats you cannot adjustthe front head restraints or the outer rear headrestraints.
Adjusting the head restraints manually
Adjusting the head restraint height
XTo raise:pull the head restraint up to thedesired position.
XTo lower:press release catch Cin the direc-tion of the arrow and push the head restraintdown to the desired position.
Adjusting the fore/aft position of the
head restraint
With this function you can adjust the distancebetween the head restraint and the back of theseat occupant's head.
XTo move forwards:pull the head restraintforwards in the direction of the arrow until itengages.There are several notches.
XTo move backwards:press and hold releasebutton Cand push the head restraint back-wards.
XWhen the head restraint is in the desired posi-tion, release the button and make sure thatthe head restraint is engaged in position.
94Seats
Seats , ste ering wheel and mirrors

The three red indicator lamps in the button indi-cate the heating level you have selected.
The system automatically switches down fromlevel3to level2after approximately eightminutes.
The system automatically switches down fromlevel2to level1after approximately tenminutes.
The system automatically switches off approx-imately 20 minutes after it is set to level1.
XTurn the SmartKey to position Gor Hin theignition lock (Ypage 123).
XTo switch on:press button Crepeatedlyuntil the desired heating level is set.
XTo switch off:press button Crepeatedlyuntil all the indicator lamps go out.
iIf the battery voltage is too low, the seatheating may switch off.
Problems with the seat heating
ProblemPossible causes/consequences and P PSolutions
The seat heating hasswitched off prematurelyor cannot be switchedon.
The on-board voltage is too low because too many electrical consum-ers are switched on.
XSwitch off electrical consumers that you do not need, such as therear window defroster or interior lighting.Once the battery is sufficiently charged, the seat heating will switchback on automatically.
Steering wheel
Important safety notes
GWARNING
You could lose control of your vehicle if you do
the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
GWARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury.
Never leave children unsupervised in the vehi-
cle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. This
also applies for the Digital Vehicle Key if the
"Digital Vehicle Key" function is activated via
Mercedes me connect.
Adjusting the steering wheel
GWARNING
If the steering wheel is unlocked while the
vehicle is in motion, it could change position
unexpectedly. This could cause you to lose
control of the vehicle. There is a risk of an
accident.
96Steering wheel
Seats, steering wheel and mirrors