Gene
rally, you may only apply the parking brake
when theve hicle is stationar y. #
Toapply the pa rking brake: pull handbrake
le ve r1 up as far as the last possible de tent.
When the engine is running, the0049
and 0024 (USA) or 0024(Canada) indicator
lamps in the Instrument Display light up. If
th eve hicle is in motion, a warning tone
sounds.
% In
vehicles with a folding handbrake le ver,
yo u can then press handbrake le ver1 down
as far as it will go. #
Torelease the pa rking brake: onvehicles
with a folding handbrake le ver,firs t pull hand‐
brake le ver1 up as far as it will go. #
Guide handbrake le ver1 down toas far as it
will go.
The 0049 and0024 (USA) or 0024(Canada)
indica tor lamps in the instrument display go
out.
Fo lding the handbrake le ver up or down (only
in vehicles with a folding handbrake le ver)
Re quirements:
R The handbrake le ver is applied. #
Tofold down the handbrake le ver:push the
handbrake le ver down as far as it will go. #
Toraise the handbrake le ver:pull the hand‐
brake le ver up as far as it will go. Pe
rforming emer gency braking with the hand‐
brake le ver If, in
exceptional cases, the service brake fails,
yo u may use the parking brake toper form emer‐
ge ncy braking. #
Eme rgency braking: press and hold release
button 2and carefully pull brake le ver1. Electric parking brake
Information on
the electric pa rking brake &
WARNING Risk of accident and injury
due tochildren left unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R Open doo rs,th ereby endangering other
persons or road users.
R Get out and be stru ck byoncoming traf‐
fi c.
R Ope rate ve hicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion, forex ample by:
R Releasing the parking brake.
R Changing the transmission position.
R Starting theve hicle. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. #
Keep theve hicle key out of reach of
ch ildren. 14 2
Driving and pa rking
Fo
rth e automatic functions towo rkcor rectl y,the
driver must be seated in the cor rect seat position
(/ page 64).
The function of the electric parking brake is
dependent on the on-board electrical sy stem volt‐
age. If the on-board electrical sy stem voltage is
low or there is a malfunction in the sy stem, it
may not be possible toapply the electric parking
brake and theye llow 0024 indicator lamp lights
up.
In this case, park theve hicle in thefo llowing way:
R Park theve hicle on le velground and secure it
to prev ent it from rolling away.
R Ve
hicles with automatic transmission:
shift the transmission toposition 005D.
% The electric parking brake is only actually
applied when there d0049 and0024 (USA)
or 0024 (Canada) indicator lamps light up
continuousl y.
It may not be possible torelease a parking brake
if th e on-board electrical sy stem voltage is low or
if th ere is a malfunction in the sy stem. Inform a
qu alified specialist workshop.
When the engine is switched off, the electric
parking brake car ries out a function test at regu‐
lar inter vals. Noises are normal in this process.
Au tomatically applying the electric parking
brake
Ve hicles with automatic transmission:
The electric parking brake is auto matically
applied when the transmission is in position 005D.
In addition, at least one of thefo llowing condi‐
tions must be fulfilled:
R The engine is switched off
R The driver is not sitting in the driver's seat
R The belt buckle is undone To
prev ent the electric parking brake from apply‐
ing automaticall y,pull switch 1.
The electric parking brake is also automatically
applied if Active Dis tance Assi stDISTRONIC has
brought theve hicle toast andstill.
In addition, at least one of thefo llowing condi‐
tions must be fulfilled:
R The engine is switched off
R The driver is not sitting in the driver's seat
R The belt buckle is undone
R There is a sy stem malfunction
R The po wer supp lyis insuf ficient
R The vehicle is stationary for a long time
The red0049 and0024 (USA) or 0024(Canada)
indicator lamp in the instrument display lights up.
The electric parking brake is only actually applied
when there d0049 and0024 (USA) or 0024
(Canada) indicator lamps light up continuousl y.
Re leasing the electric pa rking brake automat‐
ically
Ve hicles with automatic transmission:
The electric parking brake of your vehicle is
re leased when all of thefo llowing conditions are
fulfilled:
R The driver is sitting in the driver's seat.
R The driver is belted.
R The engine is running.
R The transmission is in position 005Bor005E and
yo u depress the accelera tor.
or
Yo u swit chfrom transmission position 005Dto
position 005Bor005E. You must also depress the Driving and pa
rking 14 3
accelerator if tra
veling on steep uphill gradi‐
ents.
R Ifth e transmission is in position 005E,there ar-
end doors must be closed.
App lying/releasing the electric pa rking brake
manually &
WARNING Risk of accident and inju ry
due tochildren and animals left unat ten‐
ded in theve hicle
If yo u lea vechildren and animals unat tended
in theve hicle, they may be able toset the
ve hicle in motion, forex ample by:
R Releasing the parking brake.
R Shifting the automatic transmission out of
park position 005D.
R Starting the engine.
In addition, they may operate vehicle equip‐
ment and become trapped. #
Never lea vechildren and animals unat‐
te nded in theve hicle. #
When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle. #
Toappl y:press switch 1.
When the electric parking brake is applied,
th ere d0049 and0024 (USA) or 0024(Can‐
ada) indicator lamps light up in the instru‐
ment displa y.The electric parking brake is
only actually applied when there d0049
and 0024 (USA) or 0024(Canada) indicator
lamps light up continuousl y.
It is also possible toapply the electric parking
brake when the ignition is switched off. #
Torelease: pull switch 1.
The red0049 and0024 (USA) or 0024(Can‐
ada) indicator lamps in the instrument display
go out.
Yo u may on lyrelease the electric parking
brake if the ignition is switched on with the
st art/ stop button.
Emer gency braking In
theeve nt of an emergency, you can brake the
ve hicle while it is in motion with the electric park‐
ing brake. #
While driving, press switch 1ofthe electric
parking brake.
The vehicle is braked as long as youke ep
switch 1ofthe electric parking brake
depressed.
The longer electric parking brake switch 1is
depressed, the greater the braking forc e.
During the braking procedure, you will receive the
fo llowing feedback from theve hicle:
R awa rning tone sounds
R the "Release parking brake" display message
appears
R there d0049 and0024 (USA) or 0024(Can‐
ada) indicator lamps in the instrument display
fl ash
When theve hicle has been braked toast andstill,
th e electric parking brake is applied. Pa
rking theve hicle for an extended period Pa
rking theve hicle for longer than 4 weeks #
Method 1: connect thest ar ter battery to a
trickle charge r via the jump-s tart connection. 14 4
Driving and pa rking
Sy
stem limitations
The sy stem may be impaired or may not function
in thefo llowing ins tances:
R The radar sensors are af fected bysno w,rain,
fo g, heavy spr ay,gl are, direct sunlight or
greatly varying ambient light.
R The radar sensors may malfunction in parking
ga rage s or on roads with steep uphill or
downhill gradients.
R Ifth era dar sensors are dirty or co vered.
R On icy or slippery roads, braking or accelerat‐
ing can cause the drive wheels tolose trac‐
tion and theve hicle could then skid.
R Stationary objects are not de tected if these
we renot pr eviously de tected as moving.
R On bends, target vehicles may be lost or not
re cognized cor rectl y.As a result, a target
ve hicle is not used toregulate the speed
which may lead tounwa nted accele ration.
Do not use Active Dis tance Assi stDISTRONIC in
th ese situations. &
WARNING Risk of accident from acceler‐
ation or braking byActive Dis tance Assi st
DISTRONIC
Ac tive Dis tance Assi stDISTRONIC may accel‐
erate or brake in thefo llowing cases, for
ex ample:
R Ifth eve hicle pulls away using Active Dis‐
ta nce Assi stDISTRONIC.
R Ifth estored speed is called up and is con‐
siderably faster or slo werth an the cur‐
re ntly driven speed.
R IfAc tive Dis tance Assi stDISTRONIC no
longer de tects a vehicle in front or does
not react toreleva nt objects. #
Always carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times. #
Take into account the tra ffic situation
before calling up thestored speed. &
WARNING Risk of accident due toinsuf‐
fi cient deceleration byActive Dis tance
Assi stDISTRONIC
Ac tive Dis tance Assi stDISTRONIC brakes
yo ur vehicle with up to50% of the maximum
possible deceleration. If this deceleration is not suf
ficient, Active Dis tance Assi st
DISTRONIC alerts you with a visual and
acoustic warning. #
Inthese cases, adjust your speed and
ke ep a suf ficient dis tance. #
Brake theve hicle yourself and/or take
ev asive action. &
WARNING Risk of accident if de tection
function of Active Dis tance Assi st
DISTRONIC is impaired
Ac tive Dis tance Assi stDISTRONIC does not
re act or has a limited reaction:
R when driving on a dif fere nt lane or when
ch anging lanes
R topedestrians, animals, bicycles or sta‐
tionary vehicles, or unexpected obs tacles
R tocomplex traf fic conditions
R tooncoming vehicles and crossing traf fic
As a result, Active Dis tance Assi stDISTRONIC
may nei ther give warnings nor inter vene in
su ch situations. #
Always obser vethe tra ffic conditions
carefully and react according ly. Ac
tive Dis tance Assi stDISTRONIC may not de tect
nar row vehicles driving in front, e.g. mo torcyc les
and vehicles driving on a dif fere nt line.
Ope rating Active Di stance Assist DIST RONIC
Re quirements:
R The vehicle has been star ted.
R The parking brake has been released.
R ESP ®
is activated and is not inter vening.
R The transmission is in position 005B.
R The driver's and the front-passen ger door are
closed.
R The seat occupancy recognition on the driv‐
er's seat has de tected that the driver has fas‐
te ned the seat belt.
R The check of thera dar sensor sy stem has
been successfully comple ted. Driving and parking
15 3
Information on Hill
Start Assist Hill
Start Assist holds theve hicle for a short time
when pulling away on a hill under thefo llowing
conditions:
R Vehicles with automatic transmission: the
transmission is in position 005Bor005E.
R The pa rking brake has been released.
This gives you enough time tomo veyour foot
from the brake pedal tothe accelerator pedal and
depress it before theve hicle begins toroll. &
WARNING Risk of accident and inju ry
due totheve hicle rolling away
Af ter a short time, Hill Start Assist no lon ger
holds theve hicle and it can rollaw ay. #
Therefore, swiftly mo veyour foot from
th e brake pedal tothe accelerator
pedal. Ne ver attem pttolea vetheve hi‐
cle if it is being held byHill Start Assist. HOLD function
HOLD function
Re quirements:
R The seat occupancy recognition on the driv‐
er's seat has de tected that the driver has fas‐
te ned the seat belt.
The HOLD function holds theve hicle at a stand‐
st ill without requ iring youto depress the brake
pedal, e.g. when pulling away on steep slopes or
when waiting in traf fic. When you depress the
accelerator pedal topull away,th e braking ef fect
is canceled and the HOLD function is deactiva‐
te d.
The HOLD function is only an aid. The responsibil‐
ity forth eve hicle safely standing still remains
with the driver.
Sy stem limits
The HOLD function is only intended toprov ide
assis tance when driving and is not a su fficient
means of safeguarding theve hicle against rolling
aw ay when stationar y.
R The incline must not be greater than 30%.
Ac tivating/deactivating the HOLD function
Requ irements: R
The vehicle is stationar y.
R The engine is running or it has been au tomati‐
cally switched off bythe ECO start/ stop func‐
tion.
R The driver is seated and belted.
R The electric parking brake is released.
R Vehicles with automatic transmission: the
selector le ver is in position 005B,005Eor005C.
R Active Dis tance Assi stDISTRONIC is deacti va‐
te d.
Ac tivating the HOLD function &
WARNING Risk of an accident due tothe
HOLD function being activated when you
lea vetheve hicle
If yo u lea vetheve hicle while only the HOLD
function is braking theve hicle, theve hicle
can rollaw ay inthefo llowing situations:
R Ifth ere is a malfunction in the sy stem or
in the po wer supp ly.
R Ifth e HOLD function is deactivated by
depressing the accelera tor pedal or brake
pedal, e.g. byave hicle occupant. #
Always deactivate the HOLD function
and secure theve hicle against rolling
aw ay before leaving theve hicle. *
NO
TEDama gefrom auto matic braking When
Active Brake Assi st,Ac tive Dis tance
Assi stDISTRONIC or the HOLD function are
activated, theve hicle brakes autonomously in
cer tain situations.
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations: #
During towing #
In a car wash #
Make sure that the activation conditions are
met. #
Depress the brake pedal until the00D9 dis‐
play appears in the multifunction displa y.
The HOLD function is activated. You can
re lease the brake pedal.
% If depressing
the brake pedal thefirs t time
does not acti vate the HOLD function, wait
brief lyand then try again. Driving and parking
15 5
Deactivating the HOLD function
The HOLD function is deactivated in
thefo llowing
situations: #
Vehicles with automatic transmission:
depress the accelerator pedal when the auto‐
matic transmission is in position 005Bor005E. #
Depress the brake pedal again with suf ficient
pressure until the00D9 display in the multi‐
function display goes out. #
Activate Active Dis tance Assi stDISTRONIC.
% Ve
hicles with automatic transmission: the
automatic transmission of your vehicle shifts
to 005D afte r some time. This relie vesth e load
on the service brake.
When the HOLD function is activated, the auto‐
matic transmission automatically shifts to005D in
th efo llowing situations:
R The driver lea vesth e driver's seat.
R The driver's door is opened.
R The engine is switched off without the ECO
st art/ stop function. Pa
rking Assist PARKTRONIC Fu
nction of Parking Assist PARKTRONIC
Pa rking Assist PARKTRONIC is an electronic park‐
ing assis tance sy stem with ultrasound. It moni‐
to rs the area around your vehicle using six sen‐
sors on the front bumper and six sensors on the
re ar bumper. Parking Assist PARKTRONIC indi‐
cates visually and audibly the dis tance between
yo ur vehicle and an object.
Pa rking Assist PARKTRONIC is on lyan aid. It is
not a substitute foryo ur attention tothe sur‐
ro undings. The responsibility for safe maneu ver‐
ing and parking remains with you. Make sure that
th ere are no persons, animals or objects in the
maneuvering area while maneuvering and parking
in/exiting parking spaces.
In thest andard setting, an intermit tent wa rning
to ne sounds from a di stance of appr oximately
1. 3 ft (0.4 m) toan obs tacle. A continuous tone
sounds from a di stance of appr oximately 1.0 ft
(0.3 m). You can set thewa rning tone in the mul‐
timedia sy stem so that it will sound earlier at a
grea ter dis tance of appr oximately 3.3 ft(1 m)
(/ page 156).
Pa rking Assist PARKTRONIC displ ayinthe
mu ltimedia sy stem
If th ePa rking Assist PARKTRONIC display in the
multimedia sy stem is not active and an obs tacle is de
tected in the path of theve hicle, a pop-up
window forPa rking Assist PARKTRONIC appears
in the multimedia sy stem at speeds up toappr ox‐
imately 6 mph (10 km/h).
Sy stem limitations
Pa rking Assist PARKTRONIC does not necessarily
ta ke into account thefo llowing obs tacles:
R Obs tacles bel ow the detection range, e.g. per‐
sons, animals or objects.
R Obs tacles ab ovethe de tection range, e.g.
ove rhanging loads, overhangs or loading
ra mp s of truc ks.
The sensors must be free of dirt, ice and slush.
Otherwise, they may not function cor rectl y.Clean
th e sensors regular ly,ta king care not toscratch
or damage them.
Ve hicles with trailer hitch: Parking Assist
PA RKTRONIC is deactivated forth ere ar zone
when you es tablish an electrical connection
between your vehicle and a trailer.
Deactivating/activating Parking Assist
PA RKTRONIC
* NO
TERisk of an accident from objects at
close range Pa
rking Assist PARKTRONIC may not de tect
cer tain objects at close range. #
When pa rking or maneuvering theve hi‐
cle, pay particular attention toany
objects which are abo veor below the
sensors, e.g. flowe r pots or dr awbars.
The vehicle or other objects could oth‐
erwise be damaged. Multimedia sy
stem:
4 © 5
Settings 5
Quick Access #
Select PARKTRONIC On .
The function is activated or deactivated
depending on the pr evious setting.
% Pa
rking Assist PARKTRONIC is automatical ly
activated when starting theve hicle.
Setting thewa rning tones of Parking Assist
PA RKTRONIC
Multimedia sy stem:
4 Settings 5
Assistance
5 Camera & Parking 5
Set Warning Tones
Ad justing the volume of thewa rning tones #
Select Warning Tone Volume. 15 6
Driving and pa rking
lamp in
the outside mir rorflashes. If the turn sig‐
nal indicator remains switched on, all other
de tected vehicles are indicated only bytheflash‐
ing of there dwa rning lamp.
If yo uove rtake a vehicle quickl y,no warning is
given.
Exit warning
The exitwa rning is an additional function of Blind
Spot Assist and warnsve hicle occupants when
leaving theve hicle about any approaching vehi‐
cles. &
WARNING Risk of accident despite exit
wa rning
The exitwa rning reacts nei ther tostationary
objects nor tovehicles approaching you at a
great lydif fere nt speed.
As a result, theex itwa rning cannot warndriv‐
ers in these situations. #
Always pay particular attention tothe
traf fic situation when opening the doors
and make sure there is suf ficient clear‐
ance. %
An
exitwa rning is not issued for sliding doors
and rear-end doors.
Overview When theve hicle is
st ationar y,an object
is de tected from
behind in the monitor‐
ing range. Display in outside mir‐
ror
When theve hicle is
st ationar y,a door on
th ere leva nt side of
th eve hicle is opened.
An object which is
close to yourvehicle
is de tected in the
monitoring range. Vi
sual and audible
wa rning %
This additional function is only
available when
Blind Spot Assist is activated and up to a
maximum of thre e minutes af terth e drive
sy stem has been switched off. The end of the
av ailability of theex itwa rning function is indi‐
cated bya series of flashes in the outside
mir ror.
The exitwa rning function is only an aid and is no
substitute forth e attentiveness of theve hicle
occupants. Responsibility alw ays lies with the ve
hicle occupants when opening doors and leav‐
ing theve hicle.
Sy stem limits
Blind Spot Assist and theex itwa rning function
may be limited in thefo llowing situations:
R Ifth ere is dirt on the sensors or the sensors
are obscured
R Ifth ere is poor visibility, e.g. due tofog, heavy
ra in, snow or spr ay
R If nar row vehicles are within the monitoring
ra nge, e.g. bicycles
R Onvery wide lanes
R Ifve hicles are not driving in the middle of
th eir lane
% St
ationary or slowly moving objects are not
displa yed.
Wa rnings may be issued in er ror when driving
close tocrash ba rriers or similar solid lane bor‐
ders. Warnings may be inter rupte d when driving
alongside long vehicles, forex ample truc ks,fo r a
prolonged time.
Blind Spot Assist is not operational when reve rse
ge ar is engaged.
The exitwa rning function may be limited in the
fo llowing situations:
R When the sensor is bloc kedby adjacent vehi‐
cles in nar rowparking spaces
R When people are approaching
Ac tivating/deactivating Blind Spot Assi st
Multimedia sy stem:
4 © 5
Settings 5
Assistance #
Activate or deacti vate Blind Spot Assist . Drive
Away Assist Fu
nction of Drive Away Assist
% Drive
Away Assistis only available forve hi‐
cles with automatic transmission.
Drive Away Assistcan reduce the se verity of an
impact when pulling away. If an obs tacle is de tec‐
te d in the direction of tra vel,th eve hicle's speed
is brief lyreduced toappr oximately 1 mph
(2 km/h). If a critical situation is de tected, a sym‐
bol appea rson the camera image of the multime‐
dia sy stem. Driving and parking
16 5
not a sy
stem for automatically keeping tothe
lane. You are responsible forth e dis tance tothe
ve hicle in front, forve hicle speed, braking in good
time and forst ay ing in your lane. If a lane-cor
recting brake application from Active
Lane Keeping Assist occurs, display 1appears
in the multifunction displa y.
Sy stem limits
No lane-cor recting brake application from Active
Lane Keeping Assist occurs in thefo llowing situa‐
tions:
R You clearly and actively steer, brake or accel‐
erate.
R You swit chon the turn signal.
R A driving saf ety sy stem inter venes, su chas
ESP ®
or Active Brake Assi st.
R You ha veadop ted a sporty driving style with
high cornering speeds or high rates of accel‐
eration.
R ESP ®
has been switched off.
R When driving with a trailer, the electrical con‐
nection tothe trailer has been cor rectly
es tab lished.
R If a loss of tire pressure or a faulty tire has
been de tected and displa yed.
The sy stem may be impaired or may not function
in thefo llowing situations:
R There is poor visibilit y,e.g. due toinsuf ficient
illumination of thero ad, highly variable shade
conditions, or due torain, sno w,fog or heavy
spr ay.
R Glare from oncoming traf fic, direct sunlight or
re flections.
R There is dirt on the windshield in the vicinity
of the multifunction camera or the camera is
fo gged up, damaged or obscured.
R No or se veral unclear lane markings are pres‐
ent for one lane, e.g. in a construction area.
R The lane markings are worn, dark or co vered. R
The dis tance totheve hicle in front is too
small, and therefore the lane markings cann ot
be de tected.
R The lane markings change quickl y,e.g. lanes
branch off, cross one ano ther or mer ge.
R The roadw ayisvery nar row and winding.
Ac tivating/deactivating Lane Keeping Assist
or Active Lane Keeping Assist
Multimedia sy stem:
4 © 5
Settings 5
Assistance #
Select Lane Keeping Assist orAct. Lane
Keep Asst. On.
Ac tivating or deactivating the warning #
Select Lane Keeping Assist orAct. Lane
Keep Asst. On. #
Select Warning. Wo
rkmode ADR (working speed control)
Fu
nction of ADR (working speed control)
When activated, ADR automatically increases the
engine speed toa preset speed or a speed you
ha ve set.
% Af
ter a cold start, the idle speed of the
engine is increased automaticall y.Ifth e pre‐
set working speed is lo werth an the
inc reased idle speed, thewo rking speed is
only reached once the engine has comple ted
th ewa rm-up phase.
It is only possible toactivate ADR with the
ve hicle stationary and the parking brake
applied.
On vehicles with automatic transmission, the
selector le ver must be in position 005D. 16 8
Driving and pa rking