Reversing feature
Panorama sliding sunroof ................87
Roller sunblind ................................. 88
Side windows ................................... 83
Roadside Assistance (breakdown) ....23
Roller blind see Roller sunblind
Roller sunblind
Opening/closing .............................. 88
Panorama roof with power tilt/
sliding panel ..................................... 87
Roof carrier ........................................ 252
Roof lining and carpets (cleaning
guidelines) ......................................... 283
Roof load (maximum) ........................344
Route (navigation) see Route guidance (navigation)
Route guidance (navigation) ............195 S
Safety Childre ninthe vehicle ..................... 58
Child restraint systems ....................58
Occupant Classification System
(OCS) ............................................... 46
Overview of occupant safety
systems ........................................... 40
Safety system
see Driving safety systems
Seat belts
Adjusting the driver's and front-
passenger sea tbelt ......................... 56
Belt force limiters ............................ 57
Cleaning ......................................... 283
Correct usage .................................. 54
Emergency Tensioning Devices ....... .57
Fastening ......................................... 55
Important safety guidelines .............53
Releasing ......................................... 56
Safety guidelines ............................. 41
Switching belt adjustment on/off
(on-board computer) ......................204
Warning lamp ................................. 234
Warning lamp (function) ................... 56
see Seat belts Seats
Adjusting (electrically). ....................95
Adjusting (manually and
electrically). ..................................... 94
Adjusting the 4-way lumbar
support ............................................ 96
Adjusting the head restraint ............95
Cleaning the cover .........................282
Correct driver's seat position ........... 92
Folding the backrests forward/
back ................................................ .95
Important safety notes ....................93
Seat backres tdisplay message .....231
Seat backres tdisplay message
(12-button multifunction steering
wheel) ............................................ 231
Seat heating problem ......................96
Seat ventilation problem ..................97
Storing settings (memory function) 102
Switching sea theating on/off .........96
Switching sea tventilation on/off ....97
Sensors (cleaning instructions) .......281
Service menu (on-board computer) .200
Service products Brake fluid ..................................... 341
Coolant (engine) ............................ 341
Engine oil ....................................... 340
Fuel ................................................ 337
Important safety notes ..................337
Refrigerant (air-conditioning
system) .......................................... 343
Washer fluid .................................. .342
Settings
Factory (on-board computer) .........204
On-board computer .......................200
Setting the air distribution ...............126
Setting the airflow ............................126
SETUP (on-board computer) .............205
Side impact air bag .............................45
Side marker lamp (display
message) ............................................ 218
Side windows Cleaning ......................................... 280
Convenience closing feature ............85
Convenience opening feature ..........84
Important safety information ...........83
Opening/closing .............................. 84 Index
15
Problem (malfunction)
.....................86
Resetting ......................................... 86
Sliding sunroof
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery .......................75
Changing the programming .............73
Checking the battery .......................75
Convenience closing feature ............85
Convenience opening feature ..........84
Display message ............................ 232
Door central locking/unlocking .......72
Important safety notes ....................72
Loss ................................................. 76
Mechanical key ................................ 74
Positions (ignition lock) .................133
Problem (malfunction) .....................76
Starting the engine ........................135
Snow chains ...................................... 303
Sockets General notes ................................ 255
Rea rcompartmen t......................... 255
Spare wheel
Storage location ............................ 332
Specialist workshop ............................ 25
Special seat bel tretractor .................. 60
Speed ,controlling
see Cruise control
Speedometer
Digital ............................................ 194
In the Instrument cluster .................31
Segments ...................................... 191
Selecting the unit of measurement 201
see Instrument cluster
SPORT handling mode
Activating/deactivating (AMG
vehicles) .......................................... 66
Warning lamp ................................. 239
SRS
see SRS (Supplemental Restraint
System)
SRS (Supplemental Restraint
System)
Display message ............................ 212
Introduction ..................................... 41
Warning lamp ................................. 241
Warning lamp (function) ................... 41 Standing lamps
Changing bulbs .............................. 114
Display message ............................ 218
Switching on/off ........................... 108
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 135
Steering (display message) ..............232
Steering wheel Adjusting (electrically). ....................98
Adjusting (manually )........................ 97
Button overview ............................... 33
Buttons (on-board computer) ......... 191
Cleaning ......................................... 282
Important safety notes ....................97
Paddle shifters ............................... 143
Storing settings (memory function) 102
Steering wheel paddle shifters ........143
Stopwatch (RACETIMER) ................... 205
Stowage areas ................................... 248
Stowage compartments Armrest (under) ............................. 249
Cuph olders ................................... 253
Glove box ...................................... .249
Important safety information .........248
Stowage net ................................... 249
Stowage net ....................................... 249
Stowage well beneath the trunk
floor .................................................... 251
Summer opening see Convenience opening feature
Summer tires ..................................... 302
Sun visor ............................................ 253
Surround lighting (on-board
computer) .......................................... 202
Switching air-recirculation mode
on/off ................................................. 129
Switching off the alarm (ATA) ............70 T
Tachometer ........................................ 191
Tail lamps Display message ............................ 217
Tank content
Fuel gauge ....................................... 3116
Index
PRE-SAFE
®
(anticipatory occupant
protection system) G
WARNING
The PRE-SAFE ®
system reduces the impact of
an accident on vehicle occupants, as long as
their seat belts have been fastened correctly.
Although your vehicle is equipped with a PRE-
SAFE ®
system, the possibility of injury in the
event of an accident cannot be ruled out. You
should therefore always drive carefully and
adapt your driving style to the prevailing road,
weather and traffic conditions.
PRE-SAFE ®
takes preemptive measures to
protect occupants in certain hazardous
situations.
PRE-SAFE ®
intervenes:
R if BAS PLUS intervenes powerfully on
vehicles with DISTRONIC PLUS
R if, on vehicles with DISTRONIC PLUS, the
radar sensor system detectsani mminent
dange rofcollision in certain situations
R in critical driving situations, e.g. when
physical limits are exceeded and the
vehicle understeers or oversteers severely
PRE-SAFE ®
takes the following measures
depending on the hazardous situation
detected:
R the front seat belts are pre-tensioned.
R on vehicles with memory function for the
front-passenger seat: the front-passenger
seat is adjusted if it is in an unfavorable
position.
R if the vehicle skids, the panorama roof with
power tilt/sliding panel and the side
windows are closed so that only a small gap
remains.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pre-tensioning. All settings made by
PRE-SAFE ®
can then be reversed. If the seat belts are not released:
X
When the vehicle is stationary, move the
backrest or seat back slightly.
The seat belt pre-tensioning is reduced and
the locking mechanism is released. G
WARNING
Make sure that nobody can become trapped
as you adjust the seat.
! Make sure that there are no objects in the
footwell or behind the seats when resetting
the seats. There is a risk that the seats
and/or the objects could be damaged.
More information about seat belt adjustment,
a convenience function integrated into PRE-
SAFE ®
, can be found in the "Seat belt
adjustment" section (Y page 56). NECK-PRO head restraints
The NECK-PRO head restraints increase
protection to the driver's and front
passenger's head and neck.T o this end, the
NECK-PRO head restraints on the driver's and
front-passenger seats are moved forwards
and upwards in the event of a rear-end
collision of a certain severity. This provides
better head support. G
WARNING
Do not secure any objects (e.g. coat hangers)
on the NECK-PRO head restraints. Otherwise,
the NECK-PRO head restraints may not
function properly, or in the event of a rear-end
collision may not be able offer the level of
protection they are designed to provide. G
WARNING
Seat or head restraint covers can cause a
malfunction when the NECK-PRO head
restraints are activated or when the side
impact air bags or pelvis air bags are
deployed, or they can prevent this completely.
The NECK-PRO head restraints or side impact
air bags/pelvis air bags can therefore not 52
Occupant safetySafety
passenger fron
tair bag is deactivated.
Should the 0019001Bindicator lamp not
illuminate or go out while the restraint is
installed, please chec kinstallation.
Periodically check the 0019001Bindicator
lamp while driving to make sure the 0019
001B indicator lamp is illuminated. If the
0019001Bindicator lamp goes out or
remains out, do not transport a child on the
front passenger seat until the system has
been repaired.
Ac hild in a rear-facing child restraint on the
front passenger seat will be seriously
injured or even killed if the front passenger
front air bag inflates.
R If you have to place a child in a forward-
facing child restraint on the front passenger
seat, move the seat as far back as possible,
use the proper child restraint
recommended for the age, size and weight
of the child, and secure child restraint with
the vehicle's seat belt according to the
child seat manufacturer's instructions. G
WARNING
Infants and small children should never share
a seat belt with another occupant. In the event
of an accident, they could be crushed
between the occupant and seat belt.
Ac hild's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint.
Children that are too large for a child restraint
must travel in seats using normal seat belts.
Position the shoulder belt across the chest
and shoulder, not the face or neck.Ab ooster
seat may be necessary to achieve proper seat
belt positioning for children over 41 lbs
(18 kg) until they reach a height where alap/
shoulder belt fits properly without a booster
seat.
When the child restraint is no tinuse, remove
it from the vehicle or secure it with the seat
belt to prevent the child restraint from becoming a projectile in the event of an
accident.
If an infant or child is traveling in the vehicle:
X Secure the infant or child with an
appropriate infant or child restraint
recommended for the child's age and
weight.
X Make sure that the infant or child is
properly secured at all times while the
vehicle is in motion. 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 unattended in the
vehicle, even if they are secured in a child
restraint system, or with access to an
unlocked vehicle. Achild's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. The children
could:
R injure themselves on parts of the vehicle
R be seriously or fatally injured through
excessive exposure to extreme heat or cold
R injure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
ignition lock or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and the child could be burned on these
parts. G
WARNING
Do not carry heavy or hard objects in the
passenger compartmentort runk unless they
are firmly secured in place. Children in the vehicle
59Safety
Z
Useful information
..............................92
Correct driver's seat position ............92
Seats .................................................... 93
Steering wheel .................................... 97
Mirrors ................................................. 99
Memory function .............................. 102 91Seats, steering wheel and mirrors
Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 25).Correct driver's seat position
X
Observe the safety guidelines on seat
adjustment (Y page 93).
X Make sure that seat 0022is adjusted
properly.
Manual and electrical seat adjustment
(Y page 94)
Electrical seat adjustment (Y page 95)
When adjusting the seat, make sure that:
R you are as far away from the driver's air bag
as possible.
R you are sitting in a normal upright position.
R you can faste nthe seat belt properly. R
you have moved the backrest to an almost
vertical position.
R you have set the seat cushion angle so that
your thighs are gently supported.
R you can depress the pedals properly.
X Check whether the head restraint is
adjusted properly.
When doing so, make sure that you have
adjusted the head restraint so that the back
of your head is supported at eye level by
the center of the head restraint.
X Observe the safety guidelines on steering
wheel adjustment (Y page 97).
X Make sure that steering wheel 0002is
adjusted properly.
Adjusting the steering wheel manually
(Y page 97)
Adjusting the steering wheel electrically
(Y page 98)
When adjusting the steering wheel, make
sure that:
R you can hold the steering wheel with your
arms slightly bent.
R you can move your legs freely.
R you can see all the displays in the
instrumentc luster clearly.
X Observe the safety guidelines for seat belts
(Y page 53).
X Check whether you have fastened the seat
belt 0003properly (Y page 55).
The seat belt should:
R fit snugly across your body
R be routed across the middle of your
shoulder
R be routed in your pelvic area across the hip
joints
X Before starting off, adjust the rear-view
mirror and the exterior mirrors in such a
way that you have a good view of road and
traffic conditions (Y page 99).
X Vehicles with a memory function: save
the seat, steering wheel and exterior mirror 92
Correct driver's seat positionSeats, steering wheel and mirrors
settings with the memory function
(Y
page 102). Seats
Important safety notes
G
WARNING
The seats can still be adjusted when there is
no key in the ignition lock. For this reason,
children should never be left unsupervised in
the vehicle. They could otherwise become
trapped when adjusting the seat. G
WARNING
Make sure that the back of your head is
supported at eye level by the central area of
the head restraint. If your head is not
supported correctly by the head restraint, you
could suffer a severe neck injury in the event
of an accident. Never drive if the head
restraints are not engaged and set correctly. G
WARNING
In order to avoid possible loss of vehicle
control, all seat, head restraint, steering
wheel and rear view mirror adjustments, as
well as fastening of seat belts, must be done
before setting the vehicle in motion. G
WARNING
Do not adjust the driver's seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
Never travel in a moving vehicle with the seat
backrest in an excessively reclined position as
this can be dangerous. You could slide under
the seat belt in a collision. If you slide under
it, the seat belt would apply force at the
abdomen or neck. This could cause serious or
fatal injuries. The seat backrest and seat belts
provide the best restraint when the wearer is
in a position that is as upright as possible and
seat belts are properly positioned on the
body. G
WARNING
Your seat belt must be adjusted so that you
can correctly fasten your seat belt.
Observe the following points:
R adjust the seat backrest until your arms are
slightly angled when holding the steering
wheel.
R adjust the seat to a comfortable seating
position that still allows you to reach the
accelerator/brake pedal safely.T he
position should be as far back as possible
with the driver still able to operate the
controls properly.
R adjust the head restraint so that it is as
close to the head as possible and the center
of the head restraint supports the back of
the head at eye level.
R never place hands under the seat or near
any moving parts while a seat is being
adjusted.
Failure to do so could result in an accident
and/or serious personal injury. G
WARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats than on the front-passenger seat. Thus,
we strongly recommend that children be
placed in the rear seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriately sized
child restraint system or booster seat
recommended for the size and weight of the
child. For additional information, see the
"Children in the vehicle" section.
Ac hild's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint. G
WARNING
For your protection, drive only with properly
positioned head restraints. Seats
93Seats, steering wheel and mirrors
Z
Adjusting the seats electrically
0002
Head restrain theight
0003 Seat cushion angle
0022 Seat height
0021 Seat fore-and-aft adjustment
001F Backrest angle
i You can store the seat settings using the
memory function (Y page 102). Adjusting the head restraints
Adjusting the head restraints
electrically X
To adjust the head restraint height: slide
the switch for head restraint adjustment
(Y page 95) up or down in the direction of
the arrow. Folding the front seat backrests
forward/back
Important safety notes G
WARNING
If the backrest is not engaged, it could fold
forwards during a braking maneuver or in the
event of an accident, for example. The seat
backrest will then push the vehicle occupant
against the seat belt. The seat belt can no
longer offer the intended level of protection
and could even cause injuries. There is an
increased risk of injury. Before each journey, make sure that the
backrest engages fully as described.
G
WARNING
The seat belt does not offer the intended level
of protection if the backrest is not in the
upright position .When braking 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 make sure that the seat
is in the upright position. G
WARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. There is arisk of injury.
Make sure when adjusting aseat that no one
has any body parts in the sweep of the seat.
Folding the seat backrest forward The seat moves forwards if:
R
you have folded the backrest forwards and
R the seat is in the rear half of the adjustment
range.
This makes it easier for passengers to get into
and out of the rear compartment. The head
restraint is lowered simultaneously. Seats
95Seats, steering wheel and mirrors Z