
Electric parking brake
Electric parking brak efunction (app lying
automatically)
& WARNING Risk of accident and injury
due tochildren lef tunat tende dint he
ve hicle
If yo ul eave children unaccompanied in the
ve hicle, they ma ybea bletos etthev ehicle in
motion, fore xamp leby:
RRe leasing thep arking brake.
RShifting thet ransmission out of park
position j.
RStartin gthe engine.
In addition, they ma yoperat evehicle equip‐
ment.
#Ne verlea ve children and animals unat‐
te nde dint hevehicle.
#When leaving thev ehicle, alw ayst ake
th eS martK eywit hyou and loc kthe
ve hicle.
The electric parking brak eisapplied if thet rans‐
mission is in position jand one of thef ollow‐
ing condition sisfulfilled:
RThe engin eisswitched off.
RThe seat belt tongueisn otinser tedint he
seat belt buckle of thed rive r's seat and the
driver's door is opened.
% Toprev ent application: pull theh andle of the
electric parking brake.
In thef ollowing situations, thee lectric parking
brak eisa lso engaged:
RActiveD ista nce Assist DISTRONICisb ringing
th ev ehicle toas tandstill.
RThe HOL Dfunction is keeping thev ehicle sta‐
tionar y.
RActiveP arking Assis tiskeeping thev ehicle
st ationar y.
This is onl ythe case if one of thef ollowing con‐
ditions is also fulfilled:
RThe engine is switched off.
RThe seat belt tongueisn otinser tedint he
seat belt buckle of thed rive r's seat and the
driver's door is opened.
RTher eisas ystem malfunction.
RThe po wersupply is insuf ficient.
RThe vehicle is stationar yfor alengt hyperiod.
When thee lectric parking brak eisapplied, the
F (USA) or !(Canada) indicator lamp
lights up in thei nstrument clus ter.
The electric parking brak eisnotautomatically
applied if thee ngine is switched of fbythe ECO
st art/ stop function.
Electric parking brak efunction (releasing
automatically)
The electric parking brak eisreleased when the
fo llowing condition sarefulfilled:
RThe engin eisrunning.
RThes eatb eltt ongue is inser tedi nt othe seat
belt buckle of thed rive r's seat.
RThe transmission is in position hork and
yo ud epress thea ccelera torp edalory ou
Drivinga nd pa rking 15
5

Function of ther adar senso rs
Some driving and driving safe ty systems use
ra dar sensor stomonitor thea reainf ront of,
behind or next tothev ehicle (depending on the
ve hicle's equipment).
Depending on thev ehicle's equipment, ther adar
sensors arei ntegrated behind theb umpers
and/or behind ther adiator grille. Keep these
parts free of dirt, ice and slush (
→pag e329).
The sensor smustn otbe co vered, fore xamp le
by bicycle rack s, ove rhanging loads or radar-
re flecting sticke rs.F ollowing an impact and in
th ee vent of associated damage ,whic hm aynot
be visible, totheb umper sorradiator grille, ha ve
th ef unction of ther adar sensors checkedata
qu alified specialis tworks hop. The driver assis‐
ta nce sy stem ma ynolonger workproperly.
Overvie wofdriving sy stems and driving
saf etys ystems
In this section, youw illfind informatio nabout
th ef ollowing driving sy stems and driving saf ety
sy stems:
R360° Camer a(→page185)
RABS ( Anti-lo ckBra king Sys tem)
(→pag e158)
RActiveD ista nce Assist DISTRONIC
(→pa ge 166)
RAIR BODY CONTROL (→pag e176)
RAc tiveB rake Assi st(→pag e160)
RActiveL aneK eeping Assis t(→page199)
RATTENTION ASSIS T(→page193)
RBAS(Brak eAssist System) (→pag e159)
REBD ( Electronic Brakeforc eDistribution)
(→pag e159)
RESP®(Electronic Stability Pro gram)
RHill StartA ssist
RHOL Dfunction (→pag e175)
RSTEER CONTROL (→page 160)
RAc tiveS teering Assis t(→page172)
RActiveP arking Assis t(→page188)
RParking Assis tPARKTRONIC (→page 179)
RRe ar vie wcamer a(→page183)
RCruise control (→pag e164)
RBlind Spo tAssis tand ActiveB lind Spo tAssist
(→pag e197)
RTraf ficS ign Assist (→page195)
Functions of ABS (Anti-loc kBrake System)
AB Sr egulates theb rake pressur eincritical driv‐
ing situations:
RDuring braking, e.g. at maximum full-s top
braking or insuf ficient traction of thet ires,
th ew heels ar epreve nted from blocking.
RVe hicle steerability while braking is ensured.
If ABS inter venes when braking, youw illfeel a
pulsing in theb rake pedal. The pulsating brake
pedal can be an indication of hazardous road
conditionsa nd can serveas areminder totake
ex trac arew hile driving.
158
Driving and pa rking

System limitationsRAB Sisa ctivefroms peeds of appr ox.5m ph
(8 km/h).
RAB Sm aybe impaired or ma ynotfunction if a
malfunction has occur reda nd they el‐
low ! ABSwarning lam plightsupc ontin‐
uousl yinthe instrument clus tera fter the
engine is star ted.
Fu nction of BAS(Brak eAssis tSystem)
&
WARNING Risk of an accident caused by
am alfunctio ninBAS (Brak eAssist Sys‐
te m)
If BA Sism alfunctioning ,the braking dis tance
in an eme rgency braking situation is
increased.
#Depress theb rake pedal wit hfull forc e
in emer gency braking situations. ABS
pr eve nts thew heels from locking.
BASs uppo rtsy our emer gency braking situation
wit ha dditional brak eforce. If
yo ud epress theb rake pedal quickl y,BA Sis
acti vated:
RBA Sa utomatically boosts theb rake pres‐
sure.
RBA Sc an short entheb raking dis tance.
RABS pr events thew heels from locking.
The brakes will function as usual oncey ou
re lease theb rake pedal. BASisd eactivated.
Activating/deactivatin gESP®(Electronic Sta‐
bility Prog ram)
Multimedia sy stem:
, 9 H K L F O H.k $ V V L V W D Q F H. ( 6 3
Mercedes‑AMG vehicles: observethe no tesi n
th eS upplement .Otherwise, youm aynotrecog‐
niz ed angers.
#Ac tivate Oor deacti vate ª thef unction.
ESP
®is deactivated if theå ESP®OFFwarn‐
ing lam plightsupc ontinuousl yinthe instrument
clus ter. Obser
vethei nformation on warning lamps and
displa ymessages whic hmaybe shown in the
instrumentc luster.
Fu nctions of ESP®Crosswind Assist
ESP®Crosswind Assis tdetects sudden gusts of
side wind and helps thed rive rtok eepthev ehi‐
cle in thel ane:
RESP®Crosswind Assis tisactiveatv ehicle
speeds between 50 mph(80 km/h) and
12 5m ph (200 km/h) when driving stra ight
ahead or cornering slightly.
RThe vehicle is stabilized bymeans of individ‐
ua lb rake application on one side.
Function of EBD (Electronic Brak eforce Dis‐
tribution)
EB Disc haracterized bythef ollowing:
RMonitoring and regulating theb rake pressure
on ther ear wheel s.
RImproveddriving stabilityw hen braking,
especiall yonb ends.
Drivin gand parking 15
9

#Storec urrent speed 2(once af ters tarting
th ev ehicle).
or
#Call up stored speed 2.#Deactivatecruise contro l1.
#Press thel eve rbrief ly:t he stored speed is
increased 3orreduced
4 by1m ph (1 km/h).
or
#Press thel eve rbeyo ndthep ressur epoint:
th es tore ds peed is increased 3orreduced
4 by5m ph (1 0km/h).
If cruise contro lhas been deactivated, thec ur‐
re nt driven speed is adop tedw ith3 or4. %
Ifyo ub rake ,d eactivat eESP
®or if ESP®
inter venes, cruise control is deacti vated.
When yous wit ch offt he vehicle, thel ast
speed stored is cleared.
Ac tiv eD ista nce Assis tDISTR ON IC
Function of Activ eD ista nce Assist
DI STRO NIC
Ac tiveD ista nce Assist DISTRONIC
RMaintainsthes etspeed and accelera teso r
decelerates thev ehicle if thed istan ce from
th ev ehicle in front permits.
RAssists youinm aintainin gthe dis tance from
th ev ehicle in front and can bring your vehi‐
cle toas tandstil lifnecessar y.
RBrakesyour vehicle wit hupto50%oft he
maximum possible braking po wer.If greater
decelera tionp erform ance is requ ired, avis‐
ual and acoustic warning is given and you
mus tthen inter vene yourself.
RVe hicles with DrivingA ssistancePack‐
age, Activ eP arking Assis tand COMAND:
When driving in stop-s tart traf fic, thed rive ris
16 6
Driving and pa rking

supportedbye xtende dautomatic re-sta rt in
traf ficj ams.
RVe hicles with DrivingA ssistancePack‐
age: Responds tostationar yvehicles in
urban speed ranges (e xcep tb icycles, mo tor‐
cycles and pedest rians )ifc onditionsa resuf‐
fi cient toenable de tection.
If yo uf ail toadap tyour driving style, Ac tiveD is‐
ta nce Assist DISTRONICc an neither reduce the
ri sk of an accident nor override thel aws of ph ys‐
ics. It canno ttak ei ntoa ccount road, weather or
traf ficc onditions .Activ eDista nce Assist
DISTRONICi sonly an aid. Youa re re sponsible
fo rt he dis tance tothev ehicle in front, forv ehi‐
cle speed, forb raking in good time and fors tay‐
ing in lane.
If all activation condition saremet, youc an act i‐
va te ActiveD ista nce Assist DISTRONICd uringa
journ eyor while stationar y.When ActiveD is‐
ta nce Assist DISTRONICi sactivated, as peed is
st ored whic hthe driver can increase or reduce
at an ytime. The speed can be adjus tedb etwe en
15 mp h(20 km/h) and 120m ph (200 km/h). Ve
hicles with theD riving Assistance Pack‐
age: The speedc an be adjusted between
15 mp h(20 km/h) and 130m ph (2 10km/h).
Ve hicles with DrivingA ssistancePacka ge,
Ac tiv eP arkin gAssis tand COMAND: Upto30
seconds af ters topping, thev ehicle automatically
fo llo ws thev ehicle ahead without
thei n
terven‐
tio noft he driver .This is onl ypossible if thev ehi‐
cle is tr aveling on amotorway orah igh-speed
major road. If an obs tacle is de tected in front of
th ev ehicle during thed riving-of fprocedure, a
ta ke ove rwarning is given. Acceleration is
re duced, thed rive risg ivenavisual and acoustic
wa rning and mus tstopt he vehicle befor ereach‐
ing theo bstacle or takeevasiv ea ction.
Ve hicles with theD riving Assistance Pack‐
age: In conjunction wit hnavigatio nsystems,
Ac tiveD ista nce Assist DISTRONICp reve nts pro‐
hibi tedo vertakin gont heright at speeds over
50 mph(80 km/h) in right-hand traf fica nd over‐
ta king on thel eftinl eft-hand traf ficonf reew ays
and high-speed majo rroads.
If yo ua ctivat et he tur nsignal indicator tochange
lanes, thev ehicle will accelerat emoreb riskly to
th es etspeed under thef ollowing conditions:
RAc tiveD ista nce Assist DISTRONICisa ctiva‐
te d.
RIfth ed riving speed is higher than 45 mph
(70 km/h).
RIf th ed rive ns peed drops belo wthe stored
speed.
RThe sy stem cannot detect av ehicle in ther el‐
ev ant area of theo vertaking lane.
Ve hicles with DrivingA ssistancePacka ge
and Traf ficS ign Assis t:Ac tiveD ista nce Assist
DISTRONICa lsoh astheA ctiv eSpeed Limit
As
si st function. This function can be configure d
in them ultimedia sy stem. If achang eint he
speed limit is de tected and ActiveD ista nce
Assist DISTRONICisa ctivated, Ac tiveD ista nce
Assist DISTRONICa ssumesthis ne wspeed.
The driven speed is adap tedw hen thev ehicle is
le ve lw itht he tra ffic signs. The speed limit dis‐
pla yint he Instrument Displa yisalway su pdate d
when thev ehicle is le velw itht he tra ffic sign.
If Ac tiveD ista nce Assist DISTRONICh asbeen
pu tint op assive mode bypressing thea ccelera‐
Driving and parking 16
7

torp edal, onl yspeedl imits which areh igher
th an thes etspeed ar eadop ted.
Pulling thec ruise control le verw ills etthed is‐
pla yeds peed limit as thes peed, pr ovided that:
RAc tiveS peed LimitA ssisthas been activated
in them ultimedia sy stem and
RAc tiveD istan ce Assist DISTRONICh asbeen
acti vated.
If no speed limit is displa yedw hen thel eve ris
operated, thes peed se tbythe driver is adop ted.
Driv eprogram
The DYNA MIC SELECT switc hallows yout o
ch ang ethe driving styleofA ctiveDista nce
Assist DISTRONIC. Depending on whic hdrive
program is selected ,the driving characteristics
can be geared towa rdsf uel econom y,comfor tor
dynami cperform anc e(
→pag e142).
Sy stem limitations
Ve hicles with theD riving Assistance Pack‐
age: ActiveD ista nce Assist DISTRONICi sactive
in the0m ph (0 km/h) to130m ph (2 10km/h)
speed range. The sy
stem ma ybeimpaired or ma ynotfunction
in thef ollowing ins tances, fore xamp le:
RIn snow ,rain, fog, heavy spr ay,ift hereis
gl are, in direct sunlight or in greatly varying
light conditions.
RThe windshield in thea reaoft he camer ais
dirty ,miste du p, damaged or co vered.
RIfth er adar sensors ared irty or co vered.
ROn slipper yroads, braking or accelerating
can cause thed rive wheels tolose t
raction
and thev ehicle could then skid.
RIn parking garage s,tollst ations or on roads
wit hsteep uphill or downhill gradients.
Do no tuse ActiveD ista nce Assist DISTRONICi n
th ese situations.
Tips
Pa yp articula rattention in thef ollowing traf fic
situations. In suc hsituations, brak eifnecessar y.
Ac tiveD ista nce Assist DISTRONICi sthen deacti‐
va ted:
RWhen cornering, entering and exitin gab end.
RWhen no tdrivingint he center of thel ane.
RWhen other vehicles ar echanging lane.
RIfth er ea renar rowv ehicles.
RIfth er ea reobs tacle sand stationar yvehi‐
cles.
RIf th er ea recrossing vehicles, pedestrians,
mo torcyc lists or cyclists.
Displa yofActive Distance Assis tDISTRONIC
in the assistanc egraphic and in thes peed‐
ome ter
1Ve hicle ahead
2Dis tance indica tor
16 8
Driving and pa rking

3Setspecifie ddista nce
4Yo ur vehicle
1Speed of vehicle ahead
2Stored speed
Displa ysinthem ultifunction display
When activatin gActiv eDista nce Assist
DISTRONICo rwhenc hanging thes tore ds peed,
th en ew stored speed is shown fora round five
seconds in them ultifunction display ç
50 mph(70 km/h).
When ActiveD ista nce Assist DISTRONICi s
acti ve,the se tstore ds peed is displa yedn extto th
eç symbol. When dis tance control is
acti ve,the symbol is shown in green.
Ve hicles with theD riving Assistance Pack‐
age: On free ways or high-speed major roads the
ç symbol is displa yedc yclicall ywhen the
ve hicle is ready topull away.
Ve hicles with Activ eS peed Limit Assi st:If a
spee dlim it is au tomatical lyadop ted, this is
shown as thes tore ds peed wit hthe ê sym‐
bol.
Operating Activ eD ista nce Assis tDISTRONIC
&
WARNING Risk of accident if de tection
function of ActiveD ista nce Assist
DISTRONICi simpaire d
Ac tiveD ista nce Assist DISTRONICd oesn ot
re act:
RTo people or animals.
RTostationar yobstacles on ther oad, e.g.
st opped or par kedv ehicles (vehicles with‐
out theD riving Assis tance Package).
RTo stationar yobstacles on ther oad, e.g.
st opped or par kedv ehicles, if conditions
ar en otsuf ficient toenable de tection
(vehicle switht he Driving Assis tance
Pa ckage).
RTo oncoming vehicles and crossing traf‐
fi c.
Ac tiveD ista nce Assist DISTRONICc an nei‐
th er giv ewarning snor inter vene in such sit‐
uations.
#Alw aysc arefully obser vethet raffic con‐
ditionsa nd beready tobrak eata ll
times.
& WARNING Risk of accident duetol imi‐
te dd etectability of road user sand traf fic
situations
Ac tiveD ista nce Assist DISTRONICc annot
al wa ys clear lyidentify other road user sand
comple xtraf fics ituations.
Driving and park ing16
9

Inthese conditions ,Activ eDista nce Assist
DISTRONICm ay:
RGive an unnecessar ywarning and then
brak ethe vehicle.
RNeither giv eawarning nor inter vene.
RAc celerat eorbrake unexpectedly.
#Continue driving wi thcar eand be ready
to brake, particular lyifAc tiveD ista nce
Assist DISTRONICw arnsyou.
&
WARNING Risk of accident from acceler‐
ation or braking byActiveD ista nce
Assist DISTRONIC
Ac tiveD ista nce Assist DISTRONICm ayaccel‐
erat eorb rake inthef ollowing cases, for
ex ample:
RIfth ev ehicle pulls away usingA ctiveDis‐
ta nce Assist DISTRONIC.
RIfth es tore ds peed is called up and is
considerabl yfasterors lowe rthan the
cur rently driven speed.
RIfAc tiveD ista nce Assist DISTRONICn o
longer de tects avehicle in front or does
no treact toreleva nt objects.
#Alw aysc arefully obser vethet raffic con‐
ditionsa nd beready tobrak eata ll
times.
#Ta ke intoa ccount thet raffic situation
befor ecallin gupt hestored speed.
&
WARNING Risk of accident duetoi nsuf‐
fi cient decele ratio nbyA ctiveDista nce
Assist DISTRONIC
Ac tiveD ista nce Assist DISTRONICb rake s
yo ur vehicle wit hupto50%oft he maximum
possible deceleration. If this decele ratio nis
no ts ufficient, ActiveD ista nce Assist
DISTRONICa lertsy ou wit havisual and
acoustic warning.
#In these cases, adjus tyour speed and
ke ep asufficient dist ance.
#Brakethe vehicle yourself and/or take
ev asiv eaction.
&
WARNING Risk of accident duetoA ctive
Dis tance Assist DISTRONICs tillb eing
activated when youl eave thed rive r's
seat
If yo ul eave thed rive r's seat while thev ehicle
is being braked byActiveD ista nce Assist
DISTRONICo nly,the vehicle can rollaw ay.
#Alw aysd eactivat eActiv eDista nce
Assist DISTRONICa nd securethe vehi‐
cle topreve nt it from rolling away
befor eyou lea vethed rive r's seat.
Re quirementsRThe vehicle's engine mus tbeswitched on.
RThe electric parking brak emustber eleased.
RActiveP arking Assis tisnotbeing used to
par kthe vehicle or toexit from aparking
space.
RESP®mus tbea ctivated, but no tinter vening.
RThe transmission must be in positionh.
RThe driver door ,fro nt passenger door and the
re ar door smustbec losed.
RThe engine hood mus tbeclosed.
170
Driving and pa rking