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
Depending on
theve hicle's equipment, thera dar
sensors are integrated behind the bumpers
and/or behind thera diator grill. Keep these parts
free of dirt, ice and slush (/ page 288). The sen‐
sors must not be co vered, forex ample bybicycle
ra ck s, overhanging loads or sticke rs. Af ter a colli‐
sion, ha vethe function of thera dar sensors
ch ecked at a qualified specialist workshop as
damage (bo thvisible or non-visible) may ha ve
occur redto the bumper or radiator trim. Fu
nction of driving sy stems and driving
saf ety sy stems In
this section, you will find information about the
fo llowing driving sy stems and driving saf ety sys‐
te ms:
R ABS ( Anti-lock braking system)
(/ page 146)
R ASR (acceleration skid control) (/ page 147)
R BAS (Brak eAssist System) (/ page146)
R ESP ®
(Electronic Stability Program)
(/ page 147)
R EBD ( Electronic Brakeforc eDistribution)
(/ page 148)
R Active Brake Assi st (/ page 149)
R Cruise co ntrol (/ page 151)
R Active Dis tance Assi stDISTRONIC
(/ page 152)
R Hill start assist (/ page155)
R HOLD fu nction (/ page 155)
R Parking Assist PARKTRONIC (/ page156)
R Rear view camera (/ page157)
R Surround view camera (/ page159)
R ATTENTION ASSIST (/ page162)
R Traf fic Sign Assi st (/ page 163)
R Blind Sp otAssi st (/ page 164)
R Active Lane Keeping Assist (/ page167) Fu
nctions of ABS (Anti-lock Braking Sy stem) Obser
vethe impor tant sa fety guidelines forthe
driving saf ety sy stem. ABS cont
rols the brake pressure in critical situa‐
tions:
R The wheels are pr evented from lo cking when
braking, e.g. during maximum full-s top brak‐
ing or when there is insuf ficient tire traction
R The steerability of theve hicle in term s of
ph ysical possibilities is ensured when braking
R ABS is active from speeds of appr ox. 3 mph
(5 km/h). On a slippery road sur face, ABS
inter venes even if you on lybrake gently.
Sy stem limits
If th ere is a malfunction and theye llow 0025 ABS
wa rning lamp lights up continuously in the instru‐
ment display af terst arting the engine, ABS may
be impaired or inoperative.
If ABS inter venes, you will feel a pulsing in the
brake pedal. The pulsating brake pedal may be an
indication of hazardous road conditions and func‐
tions as a reminder totake extra care while driv‐
ing.
If ABS in terv enes: keep the brake pedal firm ly
depressed until the braking situation has passed.
To car ryout maximum full-s top braking:
dep ress the brake pedal with full forc e. Fu
nction of BAS (Brake Assist Sy stem) &
WARNING Risk of an accident caused by
a malfunction in BAS (Brake Assi stSys‐
te m)
If BA S is malfunctioning, the braking dis tance
in an emergency braking situation is
increased. #
Depress the brake pedal with full force
in emer gency braking situations. ABS
pr eve nts the wheels from locking. BA
S suppo rts yo u with additional braking forc e in
an emer gency braking situation.
If yo u depress the brake pedal quickl y,BA S is
acti vated:
R BAS au tomatically boosts the braking forc e of
th e brakes
R BAS can sho rten the braking dis tance
R ABS pr events the wheels from locking
When youre lease the brake pedal, the brakes
function as usual again. BAS is deactivated. 14 6
Driving and pa rking
Fu
nctions of ASR (Acceleration Skid Control) ASR can neither
reduce therisk of an accident
nor override the la wsof ph ysics if the driver does
not pay attention when pulling away or accelerat‐
ing. ASR is only an aid. Alw ays adapt your driving
st yle to suit the pr evailing road and weather con‐
ditions.
If yo u activate or deactivate the all-wheel drive in
a ve hicle with this option, ASR will be deactivated
fo rth e duration of the activation/deactivation
process.
Ve hicles without steering wheel but tons: if
ASR is malfunctioning, the00E5 indicator lamp
lights up while the engine is running and the
engine output may be reduced (/ page 26).
ASR impr oves traction, i.e. the transfer of po wer
from the tires tothero ad sur face, for a sus tained
period and thereb y,also impr ovesth e driving sta‐
bility of theve hicle. If the drive wheels start to
spin, ASR brakes individual drive wheels and lim‐
its the engine torque. ASRthus significantly
assists you when pulling away and accelerating,
especially on wet or slippe ryroads.
If traction on thero ad sur face is not suf ficient,
eve n ASR will not allow youto pull away without
dif ficulty. The type of tires and totalwe ight of the
ve hicle as well as the gradient of thero ad also
play a crucial role.
If ASR inter venes, the00E5 warning lamp in the
Instrument Display flashes. Fu
nctions of ESP ®
(Electronic Stability Pro‐
gr am) &
WARNING Risk of skidding if ESP ®
is
malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ry
out vehicle stabilization. In addition, other
driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have ESP ®
ch ecked at a qualified spe‐
cialist workshop. &
WARNING Risk of skidding if ESP ®
is
deactivated
If yo u deactivate ESP ®
, ESP ®
cannot car ryout
ve hicle stabilization. #
ESP ®
should only be deactivated in the
fo llowing situations. If
th e sur face requ ires, temp orarily deactivate
ESP ®
when pulling away ( / page 148).
Do not operate theve hicle on a roller dynamome‐
te r (e.g. for a per form ance test). If you ha veto
operate theve hicle on a roller dynamom eter, con‐
sult a qualified specialist workshop beforehand.
If yo u activate or deactivate the all-wheel drive in
a ve hicle with this option, ESP ®
will be deactiva‐
te dfo rth e duration of the activation/deactiva‐
tion process.
If ESP ®
is malfunctioning or deactivated, the
00E5 warning lamp lights up while the engine is
ru nning and the engine output may be reduced
(/ page 26).
% Only use wheels with
there commended tire
sizes. Only then will ESP ®
function properly.
ESP ®
can, within ph ysical limits, monitor and
impr ovedriving stability and traction in thefo l‐
lowing situations:
R When pulling away on wet or slippe ryroad
sur faces
R When braking
R Ifyo u are driving fasterthan 49.7 mph
(80 km/h) in stro ng crosswinds
If th eve hicle is deviating from the direction
desired bythe driver, ESP ®
can stabilize theve hi‐
cle byper form ing thefo llowing actions:
R One or more wheels are braked
R The drive sy stem per form ance is adap ted
depending on the situation
If ESP ®
is deactivated 00BB,the00E5 warning
lamp lights up con stantly in the Instrument Dis‐
play:
R Vehicle stabilization may be dela yed
R Crosswind Assist is still active
R The drive wheels may start tospin
R ASR traction control is no longer active
If ESP ®
is deactivated, ESP ®
will still support you
when braking.
If th e00E5 warning lamp in the Instrument Dis‐
play flashes, one or more wheels ha vereached
th eir tire traction limit:
R Adapt your driving style to suit the pr evailing
ro ad and weather conditions
R Do not deactivate ESP ®
under any circum‐
st ances Driving and parking
147
Ac
tivating/deactivating ESP ®
(Electronic Sta‐
bility Prog ram) Multimedia sy
stem:
4 © 5
Settings 5
Quick Access
5 ESP
% ESP®
can only be activated and deactivated
via quick access when at least one other
function is available in quick access. Other‐
wise, you can find ESP ®
in theAssistance
menu. #
Select ESP.
A prom ptappears. #
Select Onor00BB Off.
If th e00BB ESP®
OFF warning lamp lights up con‐
st antly in the instrument clus ter,ESP ®
is deacti‐
va ted.
Obser vethe information on warning lamps and
display messages which may appear in the instru‐
ment clus ter. Fu
nctions of ESP ®
Crosswind Assist Crosswind Assist does not
react under thefo llow‐
ing conditions:
R The vehicle is subjected tosevere jolts and
vib rations, e.g. as a result of une ven su rfaces
or po tholes.
R The vehicle loses traction, e.g. on snow or ice
or when hydroplaning.
R The driver is per form ing sudden and lar ge
st eering mo vements.
Crosswind Assist is operational again as soon as
th e driving conditions return tonormal.
Crosswind Assi stdetects stro ng crosswind gu sts
th at can impair ability of your vehicle todrive
st ra ight ahead. Crosswind Assist inter venes
depending on the direction and stre ngth of the
crosswind.
A stabilizing brake application helps youto keep
th eve hicle on trac k.
Information is shown in the instrument clus ter in
th eeve nt of a clearly discernible inter vention by
Crosswind Assist.
Crosswind Assist is active abo veave hicle speed
of 50 mph (8 0 km/h) when driving stra ight or
slight lycornering. Fu
nction of ESP ®
trailer stabilization &
WARNING Risk of accident in poor road
and weather conditions
In poor road and weather conditions, the
trailer stabilization cannot pr event lu rching of
th eve hicle/trailer combination. Trailers with
a high cen ter of gr avity may tip over before
ESP ®
de tects this. #
Always adapt your driving style to suit
th e cur rent road and weather condi‐
tions. ESP
®
trailer stabilization coun tera cts critical driv‐
ing situations in good time and thereby pr ovides
considerable assis tance when driving wi th a
traile r. Trailer stabilization is part of ESP ®
.
If th e sensor sy stem and evaluation logic de tect
trailer swinging mo vements, ESP ®
trailer stabili‐
zation initially brakes individual vehicle wheels in
a ta rgeted manner. It thus coun tera cts swinging
mo vements. If the swinging mo vements do not
st op, theve hicle is braked until theve hicle/
trailer combination is stabilized. If necessar y,the
ve hicle's engine output is limited.
If yo ur vehicle with trailer (vehicle/trailer combi‐
nation) starts toswer ve,yo u are able tostabilize
th eve hicle/trailer combination only bybraking.
ESP ®
trailer stabilization helps youto stabilize
th eve hicle/trailer combination in this situation.
ESP ®
trailer stabilization is active at speeds
abo veappr oximately 40 mph (6 5 km/h).
If ESP ®
is deactivated because of a malfunction,
trailer stabilization will not function. Fu
nction of EBD (electronic brake forc e distri‐
bution) EBD has
thefo llowing characteristics:
R monitoring and controlling the braking force
on there ar wheels
R impr oving driving stabilization when braking,
especially on bends 14 8
Driving and pa rking
%
It is
recommended that Active Brake Assi stis
alw ays left activated. #
Select a setting.
The last active setting is selected automatically
eve rytime the engine is star ted.
Exception: if the last setting wasOff, theMedium
setting will be automatically activated the next
time the engine is star ted.
Deactivating Active Brake Assi st
% It is
recommended that Active Brake Assi stis
alw ays left activated. #
Select Off.
The dis tance warning function and autono‐
mous braking function are deactivated.
The next time the engine is star ted, theMedium
setting will be automatically activated.
% When
Active Brake Assi stis deactivated, the
00D4 symbol appears inthest atus area of
th e multifunction displa y.Cruise control
Fu
nction of cruise control
Cruise cont rol accelerates and brakes theve hicle
automatically in order tomaintain a pr eviously
st ored speed.
If yo u accelerate toove rtake, forex ample, the
st ored speed is not dele ted. If youre mo veyour
fo ot from the accelerator pedal af terove rtaking,
cruise control will resume speed regulation back
to thestored speed.
Cruise contro l is operated using the cor respond‐
ing steering wheel buttons. You can store any
ro ad speed abo ve15 mp h (20 km/h).
If yo ufa ilto adapt your driving style, cruise con‐
trol can neither reduce therisk of an accident nor
ove rride the la wsof ph ysics. It cannot take into
account road, weather or traf fic conditions.
Cruise control is only an aid. You are responsible
fo rth e dis tance totheve hicle in front, forve hicle
speed, braking in good time and forst ay ing in
yo ur lane.
Displa ysinthe multifunction display
The status of cruise control and thestored speed
are shown in the multifunction displa y. Displ
ayinthe Instrument Display (color display)
1 Cruise cont rol is selec ted
2 Set speed gr ay: speed is stored, cruise con‐
trol is deactivated
3 Set speed green: speed is stored, cruise con‐
trol is activated
Sy stem limitations
Cruise control may be unable tomaintain the
st ored speed on uphill gradients. The stored
speed is resumed when the gradient evens out.
On long and steep downhill gradients, you should
ch ange down toa lo werge ar in good time. Take
particular no teofthis when driving a laden vehi‐
cle. By doing so, you will make use of the
engine's braking ef fect. This relie vesth e load on
th e brake sy stem and pr events the brakes from
ove rheating and wearing tooqu ickl y.
Do not use cruise control in thefo llowing situa‐
tions:
R In traf fic situations whe refrequent speed
ch anges are requ ired, e.g. in heavy traf fic or
on winding roads.
R On slippe ryroads. Accele rating can cause the
drive wheels tolose traction and theve hicle
could then skid.
R Ifyo u are driving when visibility is poor.
Operating cruise cont rol &
WARNING Risk of accident due tostored
speed
If yo u call up thestored speed and this is
lo we rth an your cur rent speed, theve hicle
decelerates. #
Take into account the tra ffic situation
before calling up thestored speed. Re
quirements:
R ESP ®
is activated, but may not inter vene.
R The driving speed is at least 15mph
(20 km/h). Driving and parking
151
#
Toactivate cruise control: pushrock er
switch 1up. #
Remo veyour foot from the accelerator pedal.
The cur rent speed is then sa ved and main‐
ta ined bytheve hicle. #
Push rocker switch 1up. #
Toincrease/reduce speed: pushrock er
switch 2up or down.
The stored speed is increased or reduced by
1 mp h (1 km/h).
or #
Press rocker switch 2up or down and hold.
The stored speed is increased or reduced in
1 mp h (1 km/h) increments.
or #
Push rocker switch 2beyond the pressure
point.
The stored speed is increased or reduced by
5 mp h (10 km/h).
or #
Push rocker switch 2beyond the pressure
point and hold.
The stored speed is increased or reduced in
5 mp h (10 km/h) increments.
or #
Accele rate theve hicle tothe desired speed. #
Push rocker switch 2up.
If cruise cont rol is activated and Traf fic Sign
Assi sthas de tected a speed restriction sign wi th
a maximum permissible speed and this appears
in the instrument display: #
Toadopt the de tected speed: pushrocker
switch 3up.
The maximum permissible speed shown by
th e traf fic sign is stored and theve hicle main‐
ta ins this speed. #
Todeactivate cruise control: pushrock er
switch 3(CNCL) down.
If cruise cont rol is deactivated, it can be reactiva‐
te d as follo ws:
R rock er switch 2(SET+) or (SET-) stores the
cur rent speed and theve hicle maintains this
speed
R rock er switch 3(RES) calls up the last speed
st ored and theve hicle maintains this speed
% Ifyo u brake, deactivate ESP ®
or if ESP ®
inter‐
ve nes, cruise control is deacti vated.
When you swit choff theve hicle, the last
speed stored is cleared. Ac
tive Di stance Assist DISTRO NIC Fu
nction of Active Di stance Assist DISTRO NIC
Ac tive Dis tance Assi stDISTRONIC maintains the
set speed on free-flowing roads. If vehicles ahead
are de tected, the set dis tance is maintained, if
necessa ryuntil theve hicle comes toa halt. The
ve hicle accelerates or brakes depending on the
dis tance totheve hicle in front and the set speed.
Speed and dis tance are set and stored on the
st eering wheel. The speed can be set in thera nge
between 15mp h (20 km/h) and 99 mph
(160 km/h) or between 15mp h (20 km/h) and
th eve hicle's maximum speed.
Other features of Active Dis tance Assi st
DISTRONIC:
R Depending on the preselected dis tance,
DISTRONIC inter venes ei ther dynamically
(short dis tance) or tosave fuel (long dis‐
ta nce).
R Depending on theve hicle mass de tected, the
dynamics of the DISTRONIC inter vention are
re duced.
R Rapid acceleration tothestored speed is initi‐
ated if the turn signal indicator is switched on
to change totheov ertak ing lane.
Ac tive Dis tance Assi stDISTRONIC is only an aid.
The driver is responsible forth e dis tancetothe
ve hicle in front, forve hicle speed and for braking
in good time. 15 2
Driving and pa rking