Fastening ......................................... 48
Important safety guidelines .............46
Rear seat belt status indicator .........49
Releasing ......................................... 49
Switching belt adjustment on/off
(on-board computer) ......................225
Warning lamp ................................. 255
Warning lamp (function) ................... 49
Seats
Adjusting (electrically) .....................96
Adjusting (manually) ........................96
Adjusting the 4-way lumbar sup-
port .................................................. 98
Adjusting the head restraint ............97
Cleaning the cover .........................293
Correct driver's seat position ........... 94
Important safety notes ....................95
Seat heating problem ....................100
Storing settings (memory function) 103
Switching seat heating on/off .........99
Sensors (cleaning instructions) ....... 291
Service see ASSYST PLUS
Service menu (on-board computer) . 219
Service products Brake fluid ..................................... 341
Coolant (engine) ............................ 341
Engine oil ....................................... 340
Fuel ................................................ 337
Important safety notes ..................336
Washer fluid ................................... 342
Settings
Factory (on-board computer) .........225
On-board computer .......................219
Setting the air distribution ............... 131
Setting the airflow ............................ 131
Shifting to neutral (manual trans-
mission) ............................................. 152
Sidebag ................................................ 44
Side lamps Switching on/off ........................... 108
Side windows
Convenience closing ........................88
Convenience opening ......................88
Important safety notes ....................86
Opening/closing .............................. 87
Problem (malfunction) .....................89
resetting .......................................... 88Sliding sunroof
see Panorama sliding sunroof
Snow chains ...................................... 319
Socket Centre console .............................. 277
Points to observe before use .........277
Rear compartment .........................277
Specialist workshop ............................ 24
Spectacles compartment ................. 269
Speed, controlling see Cruise control
Speed Limit Assist
Activating/deactivating the warn-
ing function .................................... 218
Displaying ...................................... 217
Display message ............................ 243
Display message in the multifunc-
tion display .................................... 197
Function/notes ............................. 196
Important safety notes ..................196
Speedometer
Activating/deactivating the addi-
tional speedometer ........................220
Digital ............................................ 212
In the Instrument cluster .................30
Segments ...................................... 209
Selecting the unit of measurement 220
see Instrument cluster
SPEEDTRONIC
Deactivating variable .....................172
Display message ............................ 247
Function/notes ............................. 171
Important safety notes ..................171
LIM indicator lamp .........................171
Permanent ..................................... 173
Selecting ........................................ 171
Storing the current speed ..............172
Variable ......................................... 171
SRS (Supplemental Restraint Sys-
tem) Display message ............................ 235
Introduction ..................................... 41
Warning lamp ................................. 261
Warning lamp (function) ................... 41
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 145
STEER CONTROL .................................. 7016IndexProCarManuals.com
Windowbags are deployed:
R at the start of an accident with a high rate
of lateral vehicle deceleration or accelera-
tion, e.g. in a side impact
R on the side on which an impact occurs
R on the driver's and the front passenger's
side if the vehicle overturns and the system
determines that deployment can offer addi-
tional protection to that provided by the
seat belt
R independently of the use of the seat belt
R regardless of whether the front-passenger
seat is occupied
R independently of the front airbags
PRE-SAFE ®
(anticipatory occupant
protection)
! Make sure that there are no objects in the
footwell or behind the seats when moving
the seat back. There is a risk that the seats
and/or the objects could be damaged.
PRE-SAFE ®
takes pre-emptive measures to
protect occupants in certain hazardous sit-
uations. Although your vehicle is equipped
with a PRE-SAFE ®
system, the possibility of
injury in the event of an accident cannot be
ruled out.
Always adapt your driving style to suit the
prevailing road and weather conditions and
maintain a safe distance from the vehicle in
front. Drive carefully.
PRE-SAFE ®
intervenes:
R when BAS activates, e.g. in emergency
braking situations.
R when adaptive Brake Assist intervenes
powerfully on vehicles with DISTRONIC
PLUS.
R in critical driving situations, e.g. when phys-
ical limits are exceeded and the vehicle
understeers or oversteers severely.
PRE-SAFE ®
takes the following measures
depending on the hazardous situation detec-
ted:
R the front seat belts are pre-tensioned.
R vehicles with the memory function: the
front-passenger seat is adjusted if it is in an
unfavourable position.
R if the vehicle skids, the panorama sliding
sunroof 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 pretensioning. All settings made by
PRE-SAFE ®
can then be reversed.
If the seat belts are not released:XMove the backrest or seat back slightly, but
only when the vehicle is stationary.
Seat belt pretensioning is reduced and the
locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. More
information about seat-belt adjustment can
be found under "Seat-belt adjustment"
( Y page 48).
Seat belts
Important safety notes
GWARNING
A seat belt which is not worn correctly, or
which has not been engaged in the seat belt
buckle correctly, cannot provide the intended
level of protection. Under certain circumstan-
ces, this could cause severe or even fatal inju-
ries in the event of an accident.
Therefore, make sure that all occupants — in
particular, pregnant women — wear their seat
belts correctly at all times.
R The seat belt must fit snugly on your body
and must not be twisted.Therefore, avoid
wearing bulky clothing, e.g. a winter coat.
The shoulder section of the belt must be
routed across the centre of your shoulder
46Occupant safetySafety
ProCarManuals.com
Useful information ..............................94
Correct driver's seat position ............94
Seats .................................................... 95
Steering wheel .................................. 100
Mirrors ............................................... 101
Memory functions .............................10393Seats, steering wheel and mirrorsProCarManuals.com
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 jointsXBefore starting off, adjust the rear-view mir-
ror and the exterior mirrors ( Y page 101)
so that you have a good view of road and
traffic conditions.XVehicles with a memory function: save
the seat and exterior mirror settings
( Y page 103).
Seats
Important safety notes
GWARNING
If children adjust the seats, they could
become trapped, especially if they are unat-
tended. There is a risk of injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle.
GWARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirrors 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
system.GWARNING
When adjusting a seat, you or another vehicle
occupant could become trapped by the guide
rail of the seat, for instance. There is a risk of
injury.
Make sure that no one has any part of their
body within the sweep of the seat when
adjusting it.
GWARNING
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 inju-
ries, 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.
GWARNING
The head restraints cannot provide the inten-
ded protection unless they are fitted and
adjusted correctly. There is an increased risk
of injury to the head and neck in the event of
an accident or sudden braking, for example.
Always drive with the head restraints fitted.
Ensure that the centre of the head restraints
support the back of each vehicle occupant's
head at eye level before driving off.
! To avoid damage to the seats and the seat
heating, observe the following information:
R do not spill any liquids on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
Seats95Seats, steering wheel and mirrorsZProCarManuals.com
iYou can store the seat settings using the
memory function ( Y page 103).
Adjusting the head restraints
GWARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirrors and fasten your seat
belt before starting the engine.
GWARNING
The head restraints cannot provide the inten-
ded protection unless they are fitted and
adjusted correctly. There is an increased risk
of injury to the head and neck in the event of
an accident or sudden braking, for example.
Always drive with the head restraints fitted.
Ensure that the centre of the head restraints
support the back of each vehicle occupant's
head at eye level before driving off.
General notes
For vehicles with sports seats, you cannot
adjust the head restraints or remove and fit
the rear head restraints.
Adjusting the head restraints manually
Adjusting the head restraint height
XTo raise: pull the head restraint up to the
desired position.XTo lower: press release catch : in the
direction of the arrow and push the head
restraint down to the desired position.
Adjusting the head restraint fore-and-aft
position
This function allows you to adjust the dis-
tance between the head restraint and the
back of the head.
XTo move forwards: pull the head restraint
forwards in the direction of the arrow until
it engages.
There are a number of detents.XTo move backwards: press and hold
release button : and push the head
restraint backwards.XWhen the head restraint is in the desired
position, release the button and make sureSeats97Seats, steering wheel and mirrorsZProCarManuals.com
iMake sure that the exterior mirrors are
always folded out fully while driving. They
could otherwise vibrate.
i If you are driving faster than 47 km/h, you
can no longer fold in the exterior mirrors.
Setting the exterior mirrors
If the battery has been disconnected or com-
pletely discharged, the exterior mirrors must
be reset. The exterior mirrors will otherwise
not fold in when you select the "Fold in mir-
rors when locking" function in the on-board
computer ( Y page 225).
XTurn the key to position 1 in the ignition
lock ( Y page 145).XBriefly press button :.
Folding the exterior mirrors in/out
automatically
If the "Fold in mirrors when locking" function
is activated in the on-board computer
( Y page 225):
R the exterior mirrors fold in automatically as
soon as you lock the vehicle from the out-
side.
R the exterior mirrors fold out again automat-
ically as soon as you unlock the vehicle and
then open the driver's or front-passenger
door.
i If the exterior mirrors have been folded in
manually, they do not fold out.
Exterior mirror pushed out of position
If an exterior mirror has been pushed out of
position, proceed as follows.
XVehicles without electrically folding
exterior mirrors: move the exterior mirror
into the correct position manually.XVehicles with electrically folding exte-
rior mirrors: press and hold mirror-foldingbutton (Y page 101) until you hear a click
and then the mirror engage in position.
The mirror housing is engaged again and
you can adjust the exterior mirrors as usual
( Y page 101).
Automatic anti-dazzle mirrors
The "Automatic anti-dazzle mirrors" function
is only available if the vehicle is equipped with
the "Mirror package".
The rear-view mirror and the exterior mirror
on the driver's side automatically go into anti-
dazzle mode if:
R the ignition is switched on and
R incident light from headlamps strikes the
sensor in the rear-view mirror
The mirrors do not go into anti-dazzle mode if
reverse gear is engaged or if the interior light-
ing is switched on.
Parking position of the exterior mirror
on the front-passenger side
General notes
The "Parking position for the exterior mirror
on the front-passenger side" function is only
available if the vehicle is equipped with the
"Memory package".
Setting and storing the parking position
Using reverse gear
You can set the front-passenger side exterior
mirror so that you can see the rear wheel on
that side as soon as you engage reverse gear.
You can store this position.
102MirrorsSeats, steering wheel and mirrors
ProCarManuals.com
XMake sure that the vehicle is stationary.XTurn the key to position 2 in the ignition
lock ( Y page 145).XPress button ; for the exterior mirror on
the front-passenger side.XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.XUse adjustment button = to adjust the
exterior mirror. You should see the rear
wheel and the kerb in the exterior mirror.
The parking position is stored.
i If you shift the transmission to another
position, the exterior mirror on the front-
passenger side returns to the driving posi-
tion.
Using the memory button
You can set the front-passenger side exterior
mirror so that you can see the rear wheel on
that side as soon as you engage reverse gear.
You can store this position. This setting can
be stored using memory button M? .
XMake sure that the vehicle is stationary.XTurn the key to position 2 in the ignition
lock ( Y page 145).XPress button ; for the exterior mirror on
the front-passenger side.XUse adjustment button = to adjust the
exterior mirror. You should see the rear
wheel and the kerb in the exterior mirror.XPress memory button M ? and one of the
arrows on adjustment button = within
three seconds.
The parking position is stored if the exterior
mirror does not move.XIf the mirror moves out of position, repeat
the steps.
Calling up a stored parking position set-
ting
XTurn the key to position 2 in the ignition
lock ( Y page 145).XAdjust the exterior mirror on the front-
passenger side with the corresponding but-
ton ( Y page 101).XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the stored parking position.
The exterior mirror on the front-passenger
side moves back to its original position:
R as soon as you exceed a speed of
15 km/h
R about ten seconds after you have disen-
gaged reverse gear
R if you press button : for the exterior mir-
ror on the driver's side
Memory functions
Storing settings
GWARNING
If you use the memory function on the driver's
side while driving, the adjustments could
cause you to lose control of the vehicle. There
is a risk of an accident.
Only use the memory function on the driver's
side while the vehicle is stationary.
GWARNING
If the memory function adjusts the seat, you
and other vehicle occupants – particularly
children – could become trapped. There is a
risk of injury.
Memory functions103Seats, steering wheel and mirrorsZProCarManuals.com
While the memory function is making adjust-
ments, make sure that no one has any part of
their body within the sweep of the seat. If
someone becomes trapped, immediately
release the memory function position button.
The adjustment is stopped.GWARNING
If children activate the memory function, they
could become trapped, especially if they are
unattended. There is a risk of injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle.
With the memory function, you can store up
to three different settings, e.g. for three dif-
ferent people.
The following settings are stored as a single
memory preset:
R position of the seat, backrest and head
restraint
R driver's side: position of the exterior mir-
rors on the driver's and front-passenger
sides
XAdjust the seat ( Y page 96).XAdjust the exterior mirror on the driver's
side ( Y page 101).XBriefly press the M memory button and
then press storage position button 1, 2 or
3 within three seconds.
The settings are stored in the selected pre-
set position. A tone sounds when the set-
tings have been completed.Calling up a stored settingXPress and hold the relevant storage posi-
tion button 1, 2 or 3 until the seat and
exterior mirrors are in the stored position.
i The setting procedure is interrupted as
soon as you release the storage position
button.
104Memory functionsSeats, steering wheel and mirrors
ProCarManuals.com