The seat belt should:
Rfit snugly across your body
Rbe routed across the middle of your shoul-
der
Rbe routed in your pelvic area across the hip
joints
XBefore starting off, adjust the rear-view mir-
ror and the exterior mirrors in such a way
that you have a good view of road and traf-
fic conditions (
Ypage 119).
XVehicles with memory function:you can
store the seat, steering wheel, exterior mir-
ror and head-up display settings with the
memory function (
Ypage 122).
Seats
Important safety notes
GWARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The seats can still be adjusted when there is
no SmartKey in the ignition lock.
GWARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Observe the safety notes on "Air bags"
(
Ypage 48) and "Children in the Vehicle"
(
Ypage 60).
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.
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.
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
Seats109
Seats, steering wheel and mirrors
Z
GWARNING
Children could become trapped if they acti-
vate the memory function, particularly when
unattended. There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The memory function can be used at any time,
e.g. even when the key is not in the ignition
lock.
Storing settings
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:
Rposition of the seat, backrest and head
restraint
Rdriver's side: position of the exterior mir-
rors on the driver's and front-passenger
sides
Rposition of the head-up display
XAdjust the seat accordingly (Ypage 110).
XOn the driver's side, adjust the steering
wheel (
Ypage 116) and the exterior mirrors
(
Ypage 119).
XPress memory button Mand one of the
storage position buttons 1,2or 3within
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 setting
XPress and hold the corresponding storage
position button 1,2or 3until:
Rseat
Rsteering wheel
Rexterior mirrors
Rhead-up display
are in the stored position.
iIf you release the storage position button,
the seat, steering wheel and mirror setting
functions stop immediately. The adjust-
ment of the head-up display is still carried
out.
122Memory function
Seats, steering wheel and mirrors
front of your vehicle, and consequently
switches the headlamps from high beam to
low beam.
The system automatically adapts the low-
beam headlamp range depending on the dis-
tance to the other vehicle. Once the system
no longer detects any other vehicles, it reac-
tivates the high-beam headlamps.
The system's optical sensor is located behind
the windshield near the overhead control
panel.
Important safety notes
GWARNING
Adaptive Highbeam Assist does not recognize
road users:
Rwho have no lights, e.g. pedestrians
Rwho have poor lighting, e.g. cyclists
Rwhose lighting is blocked, e.g. by a barrier
In very rare cases, Adaptive Highbeam Assist
may fail to recognize other road users that
have lights, or may recognize them too late. In this or similar situations, the automatic high-
beam headlamps will not be deactivated or
activated regardless. There is a risk of an acci-
dent.
Always carefully observe the traffic conditions
and switch off the high-beam headlamps in
good time.
Adaptive Highbeam Assist cannot take into
account road, weather or traffic conditions.
Adaptive Highbeam Assist is only an aid. Youare responsible for adjusting the vehicle's
lighting to the prevailing light, visibility and
traffic conditions.
In particular, the detection of obstacles can
be restricted if there is:
Rpoor visibility, e.g. due to fog, heavy rain or
snow
Rdirt on the sensors or the sensors are
obscured
Switching Adaptive Highbeam Assist
on/off
XTo switch on: turn the light switch to Ã.
XPress the combination switch beyond the
pressure point in the direction of arrow :.
The _ indicator lamp in the multifunc-
tion display lights up if it is dark and the
light sensor activates the low-beam head-
lamps.
If you are driving at speeds above 25 km/h:
If you are driving at speeds above approx-
imately 16 mph (25 km/h):
The headlamp range is set automatically
depending on the distance between the
vehicle and other road users.
If you are driving at speeds above approx-
imately 19 mph (30 km/h) and no other
road users have been detected:
The high-beam headlamps are switched on
automatically. The Kindicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below approx-
imately 16 mph (25 km/h) or other road
users have been detected or the roads are
adequately lit:
The high-beam headlamps are switched off
automatically. The Kindicator lamp in
the instrument cluster goes out. The _
indicator lamp in the multifunction display
remains lit.
XTo switch off: move the combination
switch back to its normal position or move
the light switch to another position.
The _ indicator lamp in the instrument
cluster goes out.
Headlamps fogged up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This
moisture does not affect the functionality of
the headlamp.
128Exterior lighting
Lights and windshield wipers
Interior lighting
Overview of interior lighting
Front overhead control panel
:p Toswit ch the left-hand front reading
lamp on/o ff
;|Toswit ch the automat icinterior
ligh ting control on/off
=c Toswit ch the front interior lighting
on/o ff
?u Toswit ch the rear interior lighting
on/o ff
Ap Toswit ch the right-hand front read-
ing lamp on/o ff
Control panel in the grab handle (rear
compartment)
:Reading lamp
;pTo switch the reading lamp on/o ff
Interior lighting control
General notes
In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatical lydeactivated after some time
exce ptwhen the key is inposit ion2in the
ignit ion lock.
The color, brightness and display lamp for the
ambient lighting may beset using COMAND
or Aud io20 (see the separate operating
instructions).
Automatic interior lighting control
XTo switch on/off: press the|button.
When the automat icinterior lighting con-
trol isactivated, the button isflush with the
overhead control panel.
The interior lighting automatical lyswitches
on ifyou:
Runlock the vehicle
Ropen a door
Rremove the SmartKey from the ignit ion
lock.
The interior light isact ivat ed for a short while
when the SmartKey isremoved from the igni-
tion lock. This delayed switch-off can be
adjusted using COMAND or Aud io20 (see the
separate operating instructions).
Manual interior lighting control
XTo switch the front interi orlighti ng on/
off: press the cbutton.
XTo switch the rear compar tment inte-
rior lighti ng on/off: press theubut-
ton.
XTo switch the reading lamps on/off:
press the pbutton.
Interior lighting129
Lights and windshield wipers
Z
Removing the Start/Stop button
You can remove the Start/Stop button from
the ignition lock and start the vehicle as nor-
mal using the SmartKey.
It is only possible to switch between Start/
Stop button mode and SmartKey operation
when the transmission is in positionP.
XRemove Start/Stop button:from ignition
lock ;.
You do not have to remove the Start/Stop
button from the ignition lock when you leave
the vehicle. You should, however, always take
the SmartKey with you when leaving the vehi-
cle. As long as the SmartKey is in the vehicle:
Rthe vehicle can be started using the Start/
Stop button
Rthe electrically powered equipment can be
operated
Starting the engine
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
GWARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or
parts of the engine that heat up. There is a risk
of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials in
the engine compartment or in the exhaust
system.
!Do not depress the accelerator when
starting the engine.
General notes
The catalytic converter is preheated for up to
30 seconds after a cold start. The sound of
the engine may change during this time.
Automatic transmission
XShift the transmission to position P
(
Ypage 162).
The transmission position display in the
multifunction display shows
P (
Ypage 163).
iYou can start the engine in transmission
position Pand N.
Starting procedure with the SmartKey
To start the engine using the SmartKey
instead of the Start/Stop button, pull the
Start/Stop button out of the ignition lock.
XTurn the SmartKey to position 3in the igni-
tion lock and release it as soon as the
engine is running (
Ypage 153).
Driving155
Driving and parking
Z
GWARNING
After a short time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is a risk of an accident and injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill start assist is not active if:
Ryou are pulling away on a level road or on a downhill gradient.
Rthe transmission is in position N.
Rthe electric parking brake is applied.
RESP®is malfunctioning.
ECO start/stop function
Introduction
The ECO start/stop function switches the
engine off automatically if the vehicle is stop-
ped under certain conditions.
The engine starts automatically when the
driver wants to pull away again. The ECO
start/stop function thereby helps you to
reduce the fuel consumption and emissions
of your vehicle.
Important safety notes
GWARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes
:ECO start/stop display
The ECO start/stop function is activated
whenever you start the engine using the
SmartKey or the Start/Stop button.
If the engine has been switched off automat-
ically by the ECO start/stop function, the
è ECO symbol is shown in the multifunc-
tion display.
Automatic engine switch-off
If the vehicle is braked to a standstill in Dor N,
the ECO start/stop function switches off the
engine automatically.
The ECO start/stop function is operational
when:
Rthe indicator lamp in the ECO button is lit
green.
Rthe outside temperature is within the range that is suitable for the system.
Rthe engine is at normal operating temper-
ature.
Rthe set temperature for the vehicle interior
has been reached.
Rthe battery is sufficiently charged.
Rthe system detects that the windshield is
not fogged up when the air-conditioning
system is switched on.
Rthe hood is closed.
Rthe driver's door is closed and the driver's
seat belt is fastened.
All of the vehicle's systems remain active
when the engine is stopped automatically.
The HOLD function can also be activated if the
engine has been switched off automatically. It
is then not necessary to continue applying the
brakes during the automatic stop phase.
158Driving
Driving and parking
DYNAMIC SELECT switch
Use theDYNAMI CSELECT switch to chang e
th edrive program. Dependin gon th edrive
program selecte dth efollowing vehicle char-
acteristic swill change:
Rth edrive (engin eand transmissio nman -
agement)
Rth esuspensio n
Rthesteerin g
Rtheavailabilit yof th eEC Ostart/sto pfunc-
tion
Rth eclimat econtrol:
-th eclimat econtro lsetting s
-therea rwindow defroster operation
period
-th eperformanc eof th eseat heatin g
Each time you start th eengin ewit hth e
SmartKey or th eStart/Sto pbutton, drive pro -
gram Cis activated. Fo rfurther information
about startin gth eengine, see (
Ypage 155).
XPush DYNAMI CSELECT switch :up or
down until th edesire ddrive program is
selected.
The status icon of th eselecte ddrive pro -
gram is shown in th emultifunction display.
In addition ,th ecurren tdrive program set -
ting sare displayed briefly in th eAudio 20 or
COMAN Ddisplay.
iIn afe w countries, th eEC Ostart/sto p
function is deactivated at th efactory due to
th eavailable fue lgrade. In this case, th e
EC Ostart/sto pfunction is no tavailable in any drive program, regardles
sof th edisplay
in th eAudio 20 or COMAN Ddisplay.
Available drive programs:
I IndividualIndividual setting s
S+Spor tPlusParticularly sport ydrivin g
characteristics
S Spor tSporty drivin gcharacter-
istic s
CComfortComfortable and econom -
ical drivin gcharacteristics
E Econom yParticularly economical
drivingcharacteristics
Additional information fo rdrive programs
(
Ypage 166).
You can also chang egear yoursel fusin gth e
steerin gwhee lpaddle shifters .Fo rfurther
information on th emanual drive program
(
Ypage 167).
Automatic transmission
Important safet ynotes
GWARNING
If th eengin espeed is abov eth eidlin gspeed
and you engage transmissio nposition Dor R,
th evehicle could pull away suddenly. There is
a ris kof an accident.
Whe nengaging transmissio nposition Dor R,
always firmly depress th ebrake peda land do
no tsimultaneousl yaccelerate.
GWARNING
The automatic transmissio nswitches to neu-
tral position Nwhen you switch of fth eengine.
The vehicle may roll away. There is aris kof an
accident.
Afte rswitchin gof fth eengine, always switch
to parking position P.Prevent th eparke dvehi-
cl e from rollin gaway by applyin gth eparking
brake .
Automatic transmission161
Driving and parking
Z
DIRECT SELECT lever
Overview of transmission positions
jPar kposition wit hparking loc k
kReversegear
iNeutral
hDrive
The DIREC TSELECT lever is on th eright of th e
steerin gcolumn .
The DIREC TSELECT lever always return sto
it s original position .The curren ttransmissio n
position P,R ,N or Dappears in th etransmis -
sio nposition display in th emultifunction dis -
play (
Ypage 163).
Engaging park position P
!If theengin espeed is to ohig hor th evehi-
cl e is moving, do no tshift th eautomatic
transmissio ndirectl yfrom Dto R,from Rto
D or directl yto P. The automatic transmis -
sio ncould otherwise be damaged .
jParkposition wit hparking loc k
kReversegear
iNeutral
hDrive
XPush th eDIREC TSELECT lever in th edirec -
tion of arrow P.
Engaging park position Pautomatically
Par kposition Pis automatically engage dif:
Ryou switch of fth eengin eusin gth eSmart -
Key and remov eth eSmartKey
Ryou switch of fth eengin eusin gth eSmart -
Key or usin gth eStart/Sto pbutto nand
ope nth edriver's doo ror front-passenger
doo r
Rthedriver's doo ris opene dwhen th evehi-
cl eis stationary or drivin gat ver ylow speed
and th etransmissio nis in position Dor R
Under certain conditions, th eautomatic
transmissio nshift sautomatically to transmis -
sio nposition Pif th eHOLD function or
DISTRONIC PLU Sis activated. Observ eth e
information on th eHOLD function
(
Ypage 195) and on DISTRONIC PLU S
(
Ypage 187).
Engaging reverse gea r R
!Only shift theautomatic transmissio nto R
when th evehicle is stationary.
XIf th etransmissio nis in position Dor N:
push th eDIREC TSELECT lever up past th e
first poin tof resistance.
XIf th etransmissio nis in position P:depress
th ebrake peda land push th eDIREC T
SELECT lever up past th efirst poin tof
resistance.
The EC Ostart/sto pfunction is no tavailable
when revers egear is engaged. Further infor-
mation on th eEC Ostart/sto pfunction
(
Ypage 158).
162Automatic transmission
Driving and parking