
XStow luggage itemssecurely. Secure the load
as per the loading guideline s(Ypage 232).
XMake sure that the floormats and carpets are
properly secured so that they canno tslipa nd
obstruct the pedals.
XClose al ldoors.
To start the engine
Important safety notes
GWARNING
Combustio nengines emi tpoisonous exhaust
gases such as carbon monoxide. Inhaling
thes eexhaus tgases lead stopoisoning. There
is ar iskoff atalinjury. Therefore neve rlea ve
the engine running in enclose dspaces with-
outs ufficient ventilation.
!Do not depress the accelerato rwhens tart-
ing the engine.
XBefore starting the engine, make sure that:
Ral lt he doors are closed.
Rallt he vehicl eoccupants are wearing their
sea tbelts correctly.
Rthe parking brake is applied.
iIf yo udepress the brake pedal before start-
ing the engine, the pedal trave lmay be shorter
and pedal resistance higher.
If yo udepres sthe brake pedal agai nafter
starting the engine, pedal trave land resist-
ance will be back to norma lagain.
Automatic transmission
XShif tthe transmissio ntoposition P
(Ypage 126).
The transmissio nposition indicator in the dis-
play shows P.
You can also star tthe engine in neutral N.
To start the engine
XTurn the key to position 3(Ypage 120 )inthe
ignition lock and release it as soo nasthe
engine is running.
Driving off
Automati ctransmission
GWARNING
If the engine speed is above the idling speed
and yo uengage transmission position Dor R,
the vehicl ecould pull away suddenly. There is
ar iskofana ccident.
Whe nengaging transmission position Dor R,
always firmly depress the brake peda land do
not simultaneouslya ccelerate.
!Onlyshift into reverse gear Rwhen the vehi-
cle is stationary .Otherwise, yo ucould dam-
ag et he transmission.
XDepres sthe brake peda land keepi t
depressed.
The parking lock is released.
XShift the transmission to position Dor R.
On vehicles with areverse warning feature ,a
warning signals ounds when reverse gear Ris
engaged to alert othe rroa du sers
(
Ypage 122).
XReleas ethe parking brake (Ypage 133).
The F (only USA) or J(only Canada)
indicator lamp in the instrument cluster goes
out.
XReleas ethe brake pedal.
Hil lstart assist automaticall ymaintains the
brake pressure for abouta nother two sec-
ondsa fterthe brake peda lisreleased .This
makes it possibl etopulla wa yw ithou tthe
vehicl eimmediatelyr olling back
(
Ypage 122).
XCarefull ydepress the accelerato rpedal.
It is onlyp ossibl etos hift the transmission from
po
sition Pto the desired positio nifyoudepress
the brake pedal. Onlyt hen is the parking lock
released .Ifthe brake peda lisnot depressed, the
DIRECT SELECTl ever can stil lbemovedbutthe
parking lock remains engaged.
The vehicl eloc ks centrall yonce yo uhavep ulle d
away .The locking knobs in the doors dro pdown.
Yo uc an open the doors from the insid eatany
time.
Yo uc an also deactivate the automatic locking
feature (
Ypage 72).
Driving121
Driving an dparking
Z

Beforeswitching off the engine, always switch
to parking position P.Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
!If the engine is switched off, rolling in neutral
N can damag ethe power transmission and
result in transmission damage.
Alway sobserve the instructions and safety
notes under "Tow starting and towing away"
(
Ypage 264).
Bearinm ind that power transmission between
the engine and the transmission is interrupted
whe nthe engine is switched off. For this reason,
shift the automatic transmission to Pbefore the
engine is switched off and with the vehicle is
stationary. Appl ythe parking brake to prevent
the vehicle from rolling away.
DIREC TSELECT lever
Overvie wofthe transmissio nshift sys-
tem
jPark positio nwithp arking lock
kReverseg ear
iNeutral
hDrive
The DIREC TSELECT lever is on the right of the
steering column.
The DIREC TSELECT lever always returns to its
origina lposition. The display in the instrument
cluster showst he current transmission position,
namely P,R, Nor D(
Ypage 127).
Selecting transmissio npositions
!If the engine speed is too hig horthe vehicle
is moving, do not shift the automatic trans-
missio ndirectly from Dto R,f rom Rto Dor
directly to P.The automatic transmission
could otherwise be damaged.
!Only shift the automatic transmission to R
whe nthe vehicle is stationary.
XIf park position Pis selected ,depress the
brake pedal to chang ethe transmission posi-
tion.
XDrive positionD :push the DIREC TSELECT
lever dow nbeyond the 1st point of resist-
ance.
XReverse gear R: push the DIRECTSELECT
lever up beyond the 1st point of resistance.
iThe ECO start/stop function is not available
whe nreverse gea risengaged .Further infor-
mation can be found under "EC Ostart/stop
function" (
Ypage 122).
XNeutral N: push the DIREC TSELECT lever up
or dow nasfar as the 1st point of resistance.
iWhe nyou switch off the engine, the auto-
mati ctransmission shifts to Nautomatically.
XPark positionP :press the button of the
DIREC TSELECT lever in the directio nofarrow
P.
Park position Pis engaged automaticall yifyou:
Rremove the key
Rope nthe driver'sd oorwhile the vehicle is sta-
tionary or traveling at very low speeds and the
transmission is in position Dor R
If yo uwantthe automatic transmission to
remain in neutral Nafte ryou switch off the
engine, yo umustleave the key in the ignition
lock. Thisisn ecessa
ry, for example, whe nwash-
i
ng the vehicle in acar wash with aconveyor.
126Automatic transmission
Drivin gand parking

Transmission positions
BPark position
Thisprevents the vehicl efromr olling
away when stopped. Do not shift the
transmission into position Punless
the vehicl eisstationary.
The automatic transmission shifts to P automaticall yifyou:
Rremove the key
Ropen the driver's door whil ethe
vehicl eisstationar yortraveling at
ver ylow speeds and the transmis-
sion is in position Dor R.
The parkin gloc ks houl dnot be used
as ab rake when parking. Always
appl ythe parkin gbrake as well once
yo uh avep arked the vehicle.
CRevers egear
Onlys hift the transmission to Rwhen
the vehicl eisstationary.
ANeutral
No powe ristransmitted fromt he
engine to the drive wheels .Releasi ng
the brakes will allo wyouto mov ethe
vehicl efreely, e.g .byp ushing or tow-
ing.
If ESP
®is deactivated or faulty: shift
the transmission to position Nif the
vehicl eisind angerofs kidding,e.g.
on icy roads.
When yo uswitch off the engine ,the
automatic transmission automati-
cally shifts into neutral N.
!If the engine is switched off ,roll-
ing in neutral Ncan damage the
powe rtransmission and resul tin
transmission damage.
7Drive
The automatic transmission changes
gear itself. All forward gear sareavail-
able.
Yo uc an influence gearshifts with
your choice of transmission program.
Yo uc an also restric tthe shift range.
Transmission position and transmis-
sion program display
:Transmission program
;Current transmission positio nor
current gear in transmission program M
=Shift range,ifrestricted
The transmission positions and current trans-
mission program :ares hown at the bottom of
the instrument cluster display. The current
transmission positio nish ighlighted.
In transmission program M,the transmission
positio nindicator shows the current gear
(
Ypage 130 )inposition D.
If yo urestric tthe shift range ,the transmission
positio nindicator shows the current transmis-
sion positio nplusr estricted shift range =,e.g.
D2 (
Ypage 128).
The arrow sinthe transmission positio ndisplay
sho whow and into which transmission positions
yo uc an change using the DIRECT SELECTl ever.
Changin ggear
The 7-spee dautomatic transmission adapts to
your individual drivin gstyle by continuously
adjusting its shift points .These shift point
adjustments take into account the current oper-
ating and drivin gconditions. If the operating or
drivin gconditions change ,the automatic trans-
mission reacts by adjusting the gearshift pro-
gram.
The 7-spee dautomatic transmission shifts to
the individual gear sautomaticall ywhenitisi n
transmission position D.T hisd epen ds on:
Rthe selecte dtransmission program
(Ypage 129)
Rany restrictio ninthe shift range
(Ypage 128)
Rthe positio nofthe accelerator pedal
Rthe roa dspeed
Yo uc an also change gear manuall yifyouselect
transmission program M(
Ypage 130).
Automati ctransmission127
Driving an dparking
Z

GWARNING
If you leave children unsupervised in the vehi-
cle, they coul dset it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehiclee quip-
ment and become trapped. There is arisk of
an accident and injury.
When leaving the vehicle, alway stake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
!Always secure the vehiclec orrectly against
rolling away. Otherwise, the vehicleori ts driv-
etrain coul dbedamaged.
!When the vehicleisp arked,alway sremove
the key to prevent the battery from becoming
discharged.
Always park you rvehicl esafel yand secure it
against rolling away. When parking, observe the
lega lrequirements of the country in which you
are currently driving.
To ensure that the vehicleisp roperly secured
against rolling awa yunintentionally:
Rthe parking brake must be firmly applied
Rthe transmission must be in position Pand the
key must be removed from the ignitio nlock
Ron steep uphill or downhill gradients, the front
wheels must be turned toward sthe curb
Parking brake
GWARNING
If you leave children unsupervised in the vehi-
cle, they coul dset it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehiclee quip-
ment and become trapped. There is arisk of
an accident and injury.
When leaving the vehicle, alway stake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If you must brake the vehiclew ith the parking
brake, the braking distance is considerably
longer and the wheels coul dlock. There is an
increased dange rofskidding and accidents.
Only use the parking brake to brake the vehi-
cle when the service brake is faulty. Do not
apply the parking brake too firmly .Ifthe
wheels lock, release the parking brake until
the wheels begint urning again.
The brake lampsare not illuminated when you
brake the vehicleu sing the parking brake.
As arule ,you may only apply the parking brake
when the vehicleiss tationary.
XTo apply the parking brake: depress park-
ing brake pedal ;firmly.
The red F(only USA) or J(only Can-
ada )indicator lamp in the instrument cluster
lights up if the engine is running.
XTo release the parking brake: depress the
brake pedala nd keep it depressed.
XPullrelease handle :.
The parking brake is released abruptly.T he
red F (only USA) or J(only Canada)
indicator lamp in the instrument cluster goes
out.
Exceptionally,ift he service brake fails, the park-
ing brake can be used to brake the vehicleina n
emergency.
XEmergency braking: pullrelease handle :
and gradually depress parking brake
pedal ;.
Parking133
Driving and parking
Z

Cruisecontro lmaybe unab leto maintain the
storeds peedonu phillgradients .The stored
speedisr esumedifth eu phill gradiente vens out
and th evehicle 's speedd oes notfall below
20 mph (30 km/ h).C ruise control maintains the
storeds peed on downhil lgradients by automat-
icall yapplyin gthe brakes. Observe the addi-
tiona ldriving tip s(
Ypage 136).
Important safety notes
Observe the notes on braking (Ypage 136).
If yo ufailtoa dapt your driving style or if yo uare
inattentive ,cruise control can neither reduce
the ris kofana ccident nor override the laws of
physics .Cruise control canno ttake road,
weathe rand traffic conditions into account.
Cruise control is only an aid. Yo uare responsible
for the distance to the vehicl einfront, for vehi-
cle speed, for braking in goo dtime and for stay-
ing in lane.
If yo uchange wheel size ,make sure they corre-
spond to the correct wheel size category
(
Ypage 267). If the categor yischanged without
recoding the control units in the vehicle, the
functioning of cruise control may be impaired.
Do not us ecruise control:
Rin traffic conditions that are unsuitable for
driving at aconstant speed, e.g. in heavy traf-
fic, on winding roads or off-road.
Ron slippery roads. Braking or accelerating
may cause the drive wheel stoloset raction
and the vehicl ecould then skid.
Rwhen there is poo rvisibility ,e.g. du etofog,
heavy rai norsnow.
If there is achange of drivers ,make sure that
yo ui nform the new driver aboutt he set cruise
speed.
Cruise control levera nd display
:To activate and store the current speed or a
higher speed
;To activate at the last storeds peed
=To activate and store the current speed or a
lowerspeed
?To deactivate cruise control
The cruise control lever is the lowe rlev er on the
left of the steering column.
Whe nyou activate cruise control ,the display
briefl yshows the Cruise Control
message
and the storeds peed.
The display also shows the Vsymbo land the
storeds peed:
Rin the header on vehicles withou tsteering
wheel buttons (Ypage 170)
Rin the statu sareaonv ehicles with steering
wheel buttons (Ypage 176)
Activation conditions
To activate cruise control ,allof the following
activation conditions mus tbefulfilled:
Rthe parking brake mus tbereleased .The F
(onl yUSA) or J(onlyCanada) indicator
lamp in the instrument cluster goe sout
RESP®mus tbes witched on, bu tnot currently
intervening or performing acontrol action
Ryoua re driving faster than 20 mph (30 km/h)
Rthe brake pedal is not depressed
Driving systems141
Driving and parking
Z

If you change wheel size, make sure they corre-
spond to the correct wheel size category
(
Ypage 267). If the category is changed without
recoding the control units in the vehicle,t he
functioning of the distance warning feature may
be impaired. COLLISION PREVENTION ASSIST
may then detect amalfunction and switch itself
off.
Operation
XTo activate/deactivate: activate or deacti-
vate the distance warning function in the on-
board computer (
Ypage 184).
If the distance warning function of the COL-
LISION PREVENTION ASSISTisa ctivated, the
display shows the Äsymbol:
Rin the header
Rin the Status Overviewof the Assist.menu (Ypage 183)
At speedsuptoa pprox20m ph (30 km/h) the
display in vehiclesw ith Active Parking Assist
first shows the ístatus indicator. Only from
as peed of abou t20m ph (30 km/h )does the
display show the Äsymbolinstead of the
í status indicator.
The distance warning function can help you to
minimize the risk of afront-end collision with a
vehicle ahea dorreduce the effects of such a
collision. With the help of the rada rsensor sys-
tem, the distance warning function can detect
obstacles that are in the path of you rvehicle for
an extended period of time. If the distance warn-
ing function detects that there is arisk of acol-
lision, you wil lbewarned visually and, where
necessary ,acoustically.W ithout yourinterven-
tion, the distance warning function cannot pre-
vent acollision.
The distance warning function issues awarning
at speeds:
Rfrom abou t4mph (7 km/h) if you approach a
vehicle traveling in front or astationary vehi-
cle very quickly. The ·warning lamp in the
instrument cluster flashe sand an intermittent
warning tone also sounds.
At speedsuptoa bout45mph (70 km/h), the
system also detects stationary obstacles ,for
example stationary or parked vehicles.
XBrake immediately until the distance to the
obstacle increases and the risk of acollision
has passed.
or
XTake evasive action, provideditiss afe to do
so.
Adaptive Brake Assist
General notes
Adaptive Brake Assist evaluates the traffic sit-
uatio nwith the help of the rada rsensor system
and can detect obstacle swhich have been in
you rvehicle's path for an extended period of
time. From speedsa bove4mph (7 km/h), Adap-
tive Brake Assist aid syou in braking during haz-
ardou ssituations.
Up to aspeed of approximately 125 mph
(200 km/h), Adaptive Brake Assist is capable of
reacting to moving obstacle sthat have already
been detected as such at least once over the
period of observation.
Important safety notes
GWARNING
Adaptive Brake Assist does not react:
Rto peopleora nimals
Rto oncoming vehicles
Rto crossing traffic
Rto stationary obstacles
Rwhen cornering
As aresult, the Adaptive Brake Assist may not
intervene in all critical conditions. There is a
risk of an accident.
Alway spay careful attention to the traffic sit-
uatio nand be ready to brake.
GWARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist can:
Rintervene unnecessarily
Rnot intervene
There is arisk of an accident.
144Driving systems
Driving and parking

Standard:the sensitivity with which the sys-
tem determines the attention level is set to
normal.
Sensitive: the sensitivity is set higher. The
driver is warned earlier.
When ATTENTION ASSIST is switched on and
the vehicle engine is running:
Ron vehicles without steering wheel buttons,
the À indicator lamp in the instrument
cluster lights up
Ron vehicles with steering-wheel buttons, the
display shows the Àsymbol:
-in the status area
-in the Status Overviewof the Assist.menu (Ypage 183)
For vehicles with steering wheel buttons, if you
deactivate ATTENTION ASSIST, the system is
automatically re-activated when you start the
engine. The system sensitivity then corresponds to the last selection activated –standard or sen-
sitive.
If you switch off ATTENTION ASSIST in avehicle
without steering wheel buttons, the system
remains switched off even after you start the
engine. The status of the system after switching
on the engine always corresponds to the status
last selected.
Warning in the display
If the system detectst iredness or increasing
lapses in concentration, the warning Atten‐
tion Assist: TakeaBreak!orAttent.Asst: Take Break!is shown in the display.
An additional warning tone sounds.
XIf necessary, take abreak.
XConfirm the message by pressing the a
button on the steering wheel.
On long journeys, take regular breaks in good
time to allow yourself to rest. If you do not take
ab reak and ATTENTION ASSIST continues to
detect increasing lapses in concentration, you
will be warned again after 15 minutes at the
earliest. This will only happen if ATTEN-
TION ASSIST still detectst ypical indicators of
fatigue or increasing lapses in concentration.
PARKTRONIC
General notes
PARKTRONIC is an electronic parking aid. The
system is equipped with ultrasonic sensors in
the front and rear bumpers to monitor the area
around your vehicle. PARKTRONIC indicates vis-
uallya nd audibly the distance between your
vehicle and an object.
Your vehicle features two separate sound emit-
ters with different frequencies for the warning
tones. The warning ranges in front of and behind the vehicle are indicated by different warning
tones.
PARKTRONIC is activated automatically when
you:
Rturn the key to position 2in the ignition lock
Rrelease the parking brake and
Rmove the selector lever to D,Nor R
PARKTRONIC is deactivated at speeds above
11 mph (18 km/h). PARKTRONIC is reactivated
at speeds below 10 mph (16 km/h).
Important safety notes
PARKTRONIC is only an aid. It cannot replace
your own awareness of the immediate surround-
ings. You are responsible for safe maneuvering,
parking and pulling away.W hen maneuvering,
parking and pulling away,m ake sure that there
are no persons, animals or object sinthe maneu-
vering area.
!Pay particular attention to obstacles above
or below the sensors when parking, such as
flower pots or trailer towbars. PARKTRONIC
does not recognizes uch objectswhen they
are in the immediate vicinity of the vehicle.
You could damage the vehicle or objects.
PARKTRONIC can suffer interference from:
Rultrasonic sources such as atruck's
compressed-air brakes, an automatic car
wash or apneumatic drill
Rattachments to the vehicle, e.g. rear moun-
ted racks
Rnumber plates (vehicle license plates) that
are not affixed flat against the bumper
Rdirty or icy sensors
Remove adetachable trailer coupling if it is no
longer required. PARKTRONIC measures the
minimum detection range to an obstacle from
the bumper, not the ball coupling.
150Driving systems
Driving and parking

:Detected parkingspace on the left
;Parkin gsym bol
=Detected parkin gspace on the right
If the driver's sea tbeltisf astened and al ldoo rs
ar ec losed ,Activ eParkin gA ssist is activated
automaticall ywhend rivin gforwards .The sys-
tem is operational at speeds of up to approx-
imatel y22m ph (35 km/h). Whil einoperation,
the system independentl yloc ate sand meas-
ures parkin gspacesonb oths ides of the vehicle.
Activ eParkin gA ssist will onl ydetect parking
spaces:
Rparallel or at right angle stothe direction of
travel.
Rthata reparallel to the direction of travel and
ar eatl east59 in (1.5 m) wide
Rthatareparallel to the direction of travel and
at leas t40in( 1.0m) lo nger thany ourvehicle
Rthata re at right angle stothe direction of
travel and at leas t40in( 1.0 m) wider than
your vehicle
iNote thatA ctiveParking Assist cannot
measure the length of aparking space if it is at
right angle stothe direction of travel .You will
nee dtoj udge yourself whether your vehicle
will fit into the parking space.
When the vehicl eisdrivingats peeds of up to
approximately 20 mph (30 km/h), parking sym-
bol ;is shown as astatus dis
pla y
int he header.
The systemd etects and differentiate sbetween
parking space swhich ar eparalle loratr ight
angle stothe direction of travel .Whenap arking
space is detected, an arrow appear snext to
parking symbol ;to indicate which side the
parking space is on. The parking space is dis-
played whil eyou ared rivin gpastita nd unti lyou
ar ea pproximately 50 ft (15 m) awayfromi t.
Active Parkin gAssist display sparking spaces on
the passengers ideass tandard. The parking
spaces on the driver's side ar eonlyd isplayed if
yo uo perate the turn signalont he driver's side.
Whe nparking on the driver's side ,you must
operate the turn signalu ntilyou have started active parking assistance by pressing the
a
button on the steering wheel.
Parking
GWARNING
If yo uleave the driver's sea twhent he vehicle
is onlyb eing braked by Active Parking Assist,
the vehicl ecould rol lawa yif:
Rther eisam alfunctio ninthe system or in
the voltag esupply.
Rthe electrical system in the engine com-
partment, the battery or the fuses ar etam-
pered with.
Rthe battery is disconnected.
Rthe vehicl eisaccelerated,e .g.b yav ehicle
occupant.
There is ariskofana ccident.
Before leaving the driver's seat, always secure the vehicl eagain st rolling away.
If PARKTRONICd etects obstacles, Active Park-
ing Assist brakes automaticall yduring the park-
ing process. Yo uareresponsibl efor braking in
goo dtime.
XBring the vehicl esafelytoas top when the
parking symbo lshows the desired parking
space in the instrument cluster.
XShift the transmission to position R.
The display shows the Start
ParkAssist?Yes:OKNo:% message and the location
of the parking space.
XTo cance lthe process: press the%but-
ton on the steering whee lordrive off.
or
XTo park using active parking assistance:
press the abutton on the steering wheel.
The display shows the ParkAssist
Active :Accelerat eand BrakeObs.Surroundingsmessage.
XLet go of the steering wheel.
XReverse the vehicle, being ready to brake at
allt imes. Exit the parking space slowly and do
not drive faster than6m ph (10 km/h). Oth-
erwis eparking assistance is cancele dand
Active Parking Assist is stopped.
Active Parking Assist brakes the vehicl etoa
standstill when the vehicl eapproaches the
rea rborde roft he parking space.
156Driving systems
Driving an dparking