Page 193 of 533

R
When towing atrailer
R In bad weather or road conditions
R Ifth ea ccelerator pedal is depressed #
Adjus tthe speed tothet raffic situation. Settin
groute-based speed adjustment Re
quirements:
R ActiveD ista nce Assi stDISTRONI Cisactiva‐
te d.
Multimedia sy stem:
, Vehicle .
k Assistance .
Speed
adjustment #
Select DYNAMIC SELECT opt. orOff. Ac
tiv eS teering Assist Fu
nction of Activ eS teering Assist Ac
tiveS teering Assis tassists thed rive rat
speeds up to210k m/h and helps thed rive rto
st ay inthec ent reofthel ane bymeans of mod‐
erat esteering inter ventions. The sy stem orients
itself using de tected lane markings .Depending
on thes peed driven, ActiveS teering Assis tuses
th ev ehicles ahead as areference. If thed etec‐
tio nofl anem arkings and vehicles ahead is
impaired, ActiveS teering Assis tswitches topas‐
siv em ode. The sy stem does no tprovide support
in thef ormofs teering inter ventions. R
The driver is requ ired tokeep their hands on
th es teering wheel at all times and be able to
inter vene at an ytime tocor rect thec ourse of
th ev ehicle and keep it in lane.
R The status of ActiveS teering Assis tisdis‐
pla yedint hestatus bar of them ultifunction
displa y.
Ste ering and contact de tection
The driver is requ ired tokeep their hands on the
st eering wheel at all times and tobe able to
inter vene at an ytime .The driver mu stexpect a
ch ang efroma ctivetop assivemode or vice
ve rsaata nytime. 19 0
Driving and pa rking
Page 194 of 533

If
th es ystemr eaches asysteml imitation or the
driver has no tsteered thev ehicle forac onsider‐
ablep eriod of time or has remo vedt heir hands
from thes teering wheel, thes ystemw ill,
depending on thes ituation ,first aler tthe driver
wit hav isual warning. Display 1appear sinthe
multifunction displa y.Ifth ed rive rs tilld oes not
st eer thev ehicle himself or herself, or still has
no ttaken hold of thes teering wheel, arepeated
wa rning tone sounds in additio ntothe visual
wa rning messag etoremind thed rive rtot ake
cont roloft hevehicle.
The warning messag edoes no tappear or disap‐
pear sifo ne of thef ollowing condition sareme t:
R The driver steer sthe vehicle.
R The driver presses asteering wheel button or
operates Touc hC ontrol.
Ac tiveS teering Assis tisonlyana id. The driver is
re sponsible fort he dis tance tothev ehicle in
front, forv ehicle speed, forb raking in good time
and fors taying in lane. Befor echanging lanes,
th ed rive rm ustm akes uret hat then eighbouring
lane is free (glance over thes houlder). Sy
stem limitations
Ac tiveS teering Assis thas alimited steering tor‐
qu efor lateral guidance. In some cases ,the
st eering inter ventio nisn otsufficien ttok eepthe
ve hicle in thel ane or todriv epaste xits. Active
St eering Assis tcann otprov ide thed rive rw ith
st eering assis tance at roundabouts, T-junctions,
junctions, tollst ations or turns ,for example.
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing ins tances:
R In sno w,rain, fog, heavy spr ay,ift hereis
gl ar eord irect sunlight or if ther ea regreatly
va rying light condition sorreflections, or
stro ng shado wsonthec arriag ewa y.
R Insuf ficient road illumination.
R The windsc reen in thea reaoft he camer ais
dirty ,miste du p, damaged or co vered.
R Absence of lane markings, or se veralu nclear
lane markings, or if them arkings chang erap‐
idly.
R The dista ncetot hevehicle in front is too
small and thel ane markings thus canno tbe
de tected.
R The car riag ewa yisn arrow and winding. R
Obs tacle sont he lane or projecting out into
th el ane.
The sy stem does no tprovide assis tance in the
fo llowing conditions:
R On tigh tbends ,roundabouts and when turn‐
ing.
R Ifyo ua ctivel ychang elane without swit ching
on thet urns ignal indicator. &
WARNING Risk of accident if Active
St eering Assis tunexpectedl ystops func‐
tioning
If th es ysteml imitations of ActiveS teering
Assis tare re ached ther eisnog uarantee that
th es ystemw illremain activ eorwillk eep the
ve hicle in lane. #
Alw aysk eep your hands on thes teering
wheel and obser vethet raffic carefull y. #
Alw ayss teer thev ehicle paying atten‐
tion totraf ficc onditions. Driving and pa
rking 191
Page 195 of 533

&
WARNING Risk of accident if Active
St eering Assis tunexpectedly inter venes
Am alfunctio ninthe de tection of lane mark‐
ings and objects can occu r.
This could cause unexpected steering inter‐
ve ntion. #
Steer according totraf ficc onditions. Ac
tivatin gActive Ste ering Assist
Re quirements:
R ESP ®
mus tbea ctivated, but no tinter vening.
R ActiveD ista nce Assi stDISTRONI Cisactiva‐
te d. #
If indicator lamp 1is off: press button 2.
Fu nction of Activ eL aneC hang eAssist
% Thea vailabilit yofthefollowing function is
countr y-dependent.
Ac tiveL aneC hangeA ssistsupports thed river
when changing lanes, byapplying steering tor‐
qu e. Assis
tance when changing lane sisprovide difa ll
th ef ollowing condition sareme t:
R Youa redrivin gonam otorway orroad with
multiple lane sinthe direction of tr avel.
R The neighbouring lane is separated byab ro‐
ke nl an em arking.
R Novehicle is de tected in thea djacen tlane.
R The driven speed is between 80 km/ha nd
18 0k m/h.
R ActiveL aneC hangeA ssistis activated bythe
driver wit hthe tur nsignal indicator.
R ActiveL aneC hangeA ssistis switched on in
th em ultimedia sy stem.
R ActiveS teering Assis tisswitched on and
active. 19 2
Driving and pa rking
Page 196 of 533

If no
vehicle is de tected in thea djacen tlane and
al ane chang eisp ermitted, thes teering wheel
symbol and thea rrow ares hown in green 2.
The Lanechang etot heleft messag eappears,
fo re xamp le. IfActiveL aneC hangeA ssisthas
been activated wit hthe tur nsignal indicator but
al ane chang eisn otimmediatel ypossible, the
st eering wheel symbol remains green and the
ar row appear sgrey 1.W hent he lane change
suppo rtstarts ,the tur nsignal indicator is auto‐
maticall yactivated. If alane chang eisn otpossi‐
ble, thea rrow fa des out af teras hortperiod and
an ew lane chang em ustbei nitiated. An immedi‐
at el ane chang eiso nly possible on mo torw ay
sections without speed limits. If
th es ystemisi mpaired, ActiveL aneC hange
Assi stma ybec ancelled. If it is cancelle dthe
Lane change cancelled messageappear sinthe
multifunction displa yand aw arning tone sounds. &
WARNING Risk of accident from chang‐
ing lane toan occupied adjacent lane
Lan eChan geAssi stcanno talway sd etect
clear lyifth ea djacen tlane is free.
The lane chang em ightbei nitiated although
th ea djacen tlane is no tfree. #
Befor echanging lanes, mak esuret hat
th en eighbouring lane is free and there
is no danger to otherroad users. #
Monitor thel ane change. &
WARNING Risk of accident if Lane
Chang eAssistunexpectedl ystops func‐
tioning
If th es ystem limitations forL ane Change
Assis thave been reached, ther eisnog uar‐
antee that thes ystem will remain active. Lane Chang
eAssis tcanno tthen assis tyou
by applying steering torques. #
Alw aysm onitor thel ane chang eand
ke ep your hands on thes teering wheel.
Obser vethet raffic condition sand steer
and/or brak eifnecessar y. Sy
stem limitations
The sy stem limitations of ActiveS teering Assist
apply toActiveL aneC hangeA ssist
( → pag e190).
Ac tivating/deactivatin gActive Lan eChange
Assi st
Multimedia sy stem:
, Vehicle .
k Assistance #
Select Lane change assist. #
Activate Oor deacti vate ª thef unction.
Fu nction of Activ eE me rgency Stop Assist
If th ed rive rc ontinues toigno rether epeated
acoustic warning toput their hands on thes teer‐
ing wheel, ActiveD ista nce Assi stDISTRONIC
re duces thes peed. If thed rive rs tilld oes not
re spond, theBeginning emergency stop mes‐ Driving and parking
19 3
Page 197 of 533

sag
eiss hown in them ultifunction displa y.The
ve hicle is decelerated in stages toas tandstill. At
speeds belo w60km/h theh azar dwarning
light sswitc hona utomaticall y.
When thev ehicle is stationar y,thef ollowing
actions ar ecarried out:
R The vehicle is secured wit hthe electric park‐
ing brake.
R ActiveD ista nce Assi stDISTRONI Cisended.
R The vehicle is unloc ked.
R If possible, an emer gency cal lisplace dto
th eM ercedes-Benz emer gency cal lcentre.
The driver can cance lthe deceleration at any
time byper form ing one of thef ollowing actions:
R Steering
R Depressing theb rake or accelera torp edal
R Pressing asteering wheel button or operat‐
ing Touc hC ontrol
R Activating or deacti vating ActiveD ista nce
Assi stDISTRONIC Overvi
ewofActiv eD ista nce Assist
DISTRO NIC displa ysinthei nstrument clus‐
ter The assis
tance graphi cand thes tatus display
sho wthe status of thef ollowing function sinthe
instrument clus ter:
R ActiveD ista nce Assi stDISTRONIC
R Route-based spee dadjustment
R ActiveS teering Assist Assistant display 1
Route-based spee dadjustmen t(type of
ro utee vent)
2 Vehicle ahead
3 Distance indica tor
4 Setspecifie ddista nce
5 Own vehicle 194
Driving and pa rking
Page 198 of 533

Ac
tiv eD ista nce Assis tDISTR ON ICstatus dis‐
pla yand route-base dspee dadjustment 1
ActiveD ista nce Assi stDISTRONI Cselected,
se ts pecified dis tance
2 ActiveD ista nce Assi stDISTRONI Cdeacti va‐
te d, speed stored 3
ActiveD ista nce Assi stDISTRONI Cactive,
speed stored, no vehicle de tected (gr eyvehi‐
cle symbol)
4 ActiveD ista nce Assi stDISTRONI Cactive,
speed stored, vehicle de tected (green vehi‐
cle symbol)
5 ActiveD ista nce Assi stDISTRONI Candroute-
based spee dadjustmen tactive, speed
st ored
% On mo torw aysorh igh-speed major roads,
th eg reen ç vehicle symbol is displa yed
cyclically whe nthe vehicle is ready topull
aw ay.
Speedome ter
The stored speed is highlighted on thes peedom‐
et er.Ift he speed of thev ehicle ahead or the
speed adjustment is less than thes tore ds peed
due tother out eevent ahead, thes egment sin
th es peedome terl ight up. Activation or deacti va‐
tio nofA ctiveDista nce Assi stDISTRONIC, as
we ll as alteration sinthe sa veds peed and the
dis tance tobe maintained, ar edispla yedint he
individual control feedbac kofthe multifunction
displa y. Ac
tiv eS teering Assis tstatus display 1
Grey steering wheel: ActiveS teering Assist
switched on and passive
2 Green steering wheel: ActiveS teering Assist
switched on and active
3 Yello ws teering wheel flashing: transition
from activ etopassivestatus (s ystem limita‐
tion de tected or prom pttothed rive rto
activel yconfirm)
During thet ransition from thea ctiv etop assive
st atus ,the è symbol is shown as enlarged
and flashes yello w. Once thes ystemisp assive
the è symbol is shown as gr eyinthem ulti‐
function displa y. Driving and pa
rking 19 5
Page 199 of 533

Information on Hill
StartA ssist Hill
StartA ssisth olds thev ehicle foras hort
time when pulling away on ahill under thef ol‐
lowing conditions:
R The transmission is in position hork.
R The electric parking brak eisreleased.
This gives youe nough tim etomovey our foot
from theb rake pedal tothea ccelera torp edal
and depress it befor ethe vehicle begins toroll. &
WARNING Risk of accident and inju ry
caused bythev ehicle rolling away
Af teras horttime, Hill StartA ssistnol onger
holds thev ehicle and it can rollaw ay. #
Therefore, swiftl ymove your foot from
th eb rake pedal tothea ccelerator
pedal. Ne vera ttem pttolea vethev ehi‐
cle if it is being held byHillStart Assist. HOLD function
HOLD function
The HOL
Dfunction holds thev ehicle at astand‐
st ill without requ iring youtod epress theb rake
pedal, e.g. when pulling away on steep slopes.
Sy stem limitations
R The incline mus tnotbe grea tert han 30%.
Ac tivating/deactivatin gthe HOL Dfunction &
WARNING Risk of an accident du etothe
HOLD function being acti vatedw heny ou
lea vethev ehicle
If yo ul eave thev ehicle while onl ythe HOLD
function is braking thev ehicle, thev ehicle
can rollaw ay inthef ollowing situations:
R Ifth er eisam alfunction in thes ystemor
in thep owe rsupply.
R Ifth eH OLD function is deactivated by
depressing thea ccelera torp eda lort he
brak epedal, e.g. byavehicle occupant. R
Ifth ee lectrics in thee ngine compart‐
ment ,the batter yorthe fuses ar etam‐
pered wit horifthe batter yisdisconnec‐
te d. #
Alw aysd eactivat ethe HOLD function
and secur ethe vehicle agains trolling
aw ay befor eleaving thev ehicle. *
NO
TEDama gefrom auto matic braking When
ActiveB rake Assi st,A ctiv eDista nce
Assi stDISTRONI Corthe HOLD function are
activated, thev ehicle brakes autonomously
in cer tain situations.
To avo id damag etothevehicle, deactivate
th ese sy stems in thef ollowing or similars it‐
uations: #
During towing #
Inac arwa sh Re
quirements:
R The vehicle is stationar y.
R The driver's door is closed or thes eat belt on
th ed rive r's side is fastened. 19 6
Driving and pa rking
Page 200 of 533

R
The engine is running or ha sbeena utomati‐
cally switched of fbythe EC Ostart/s top
function.
R The electric parking brak eisreleased.
R ActiveD ista nce Assi stDISTRONI Cisdeacti‐
va ted.
R The transmission is in position h,kori.
Ac tivatin gthe HOL Dfunction #
Dep ress theb rake pedal and af teras hort
time quickl ydepress fur ther until theë
displa yappear sinthe multifunction displa y.#
Release theb rake pedal.
Deactivating the HOLD function #
Depress thea ccelerator pedal topull away.
or #
Depress theb rake pedal until theë dis‐
pla yd isappear sfromt he multifunction dis‐
pla y. The HOLD function is deactivated in
thef ollow‐
ing situations:
R ActiveD ista nce Assi stDISTRONI Cisactiva‐
te d.
R The transmission is switched toposition j.
R The vehicle is secured wit hthe electric park‐
ing brake.
In thef ollowing situations, thev ehicle is held by
th et ransmission position jorby thee lectric
parking brake:
R The seat belt is unfas tened and thed rive r's
door is opened.
R The engine is switched off.
R Ther eisam alfunction in thes ystemort he
po we rsupply is insuf ficient. AI
RB ODYC ONT ROL AIR
BODY CONT ROLfunction
AI RB ODYC ONTROL is an air suspension sy stem
wit hvariable dampin gfor impr oveddriving com‐ fo
rt.T he all-round le velc ontrol sy stem ensures
th eb estp ossible suspension and const ant
groun dclearance, evenw ithal aden vehicle.
When driving at speed, thev ehicle is lo wered
automaticall ytoimprove driving saf etya nd to
re duce fuel consum ption. The option of manually
adjustin gthe vehicle le velisa lsoavailable.
AI RB ODYC ONTROL comprises:
R Air suspension wit hautomatic all-round le vel
control
R Speed-dependent lo wering toreduce fuel
consum ption
R Manuall yselec table high-le vels etting for
greater ground clearance
R ADS PLUS (Adaptiv eDamping Sy stem with
const ant dampin gforce adjustment)
R DYNA MIC SELECT switc hand le velb utton Drivin
gand parking 197