ta
inin gthe speed is dependent on ther oad sur‐
fa ce conditions and thed ownhill gradient and
cann ottherefor ebeg uaranteed in all situations.
Yo uc an se tthe speed depending on theg ear
ra ng etob etwe en 2m ph (4 km/h) and 11mph
(1 8k m/h) using theb rake and accelerator pedals
or ther ockers witc hont hesteering wheel.
DSR automaticall ycont rols in thef ollowing situa‐
tions:
R Ifth ev ehicle is stationar y,or its speed is less
th an 2m ph (4 km/h) ,the speed is se tto
2m ph (4 km/h )oritissetto them inimum
speed fort he respectiv egear range.
R Ifyo ud rive fast erthan 11mp h(18 km/h) off-
ro ad, DS Rswitches tostandb ymode .DSR
remains acti vated, but does no tbrake auto‐
matically.
R Ifyo ud rive downhill slo werthan 11mph
(1 8k m/h), DSRs etst he speed tothep revi‐
ous lyse ts peed.
R Ifyo ud rive faster than 28 mph(45 km/h),
DSR switches of fautomaticall y. Ac
tivating/deactivatin gDSR Ac
tivatin gDSR Yo
uc an activat eDSRwhen thev ehicle is station‐
ar yorm oving. #
Press theu pper section of switch 1.#
Brak eora ccelerat ethe vehicle tothed esired
speed between 2mph (4 km/h) and 11mph
(1 8k m/h). #
Release theb rake or accelera torp edal.
The cur rent speed is stored. When stationar y,
2m ph (4 km/h) or them inimum possible
speed fore achg ear rang eiss tore d. DSR maintains
thes tore ds peed on thed ownhill
gradient and brakes automaticall y.
When DSR is activated and thev ehicle pulls
aw ay,a ccelerates or brakes on an incline, the
speed se tcorresponds tothes peed at whic hthe
accelera tororb rake pedal is released or the
rock er switc hispressed during DSR regulation.
This is onl ythe case if youa renotd rivin gfaster
th an 11mp h(18 km/h).
DSR status displa yinthe on-boar dcomputer
R DSR is activated:
- DSR andthes etspeed appear in thes ta‐
tus area of theo n-board computer.
R DSR is activated, but is no
tinter vening:
- Youa redrivin gbetwe en 11mph
(1 8k m/h) and 28 mph(45 km/h).
- DSR andthes peed 11mp h(18 km/h)
appear in thes tatus area of theo n-board
computer.
DSR is in standb ymode.
R DSR is inactive:
- Youa reexceeding aspeed of 28 mph
(45 km/h).
- DSR appear sinthestatus area of theo n-
boar dcomputer .Inaddition, theDSR Off
messag eappears.
- DSR ---appear sinthestatus area of the
on-boar dcomputer.
Setting thes peed while driving downhill
Yo uc an se tthe speed tobetween 2mph
(4 km/h) and, depending on theg ear range, up to
11 mp h(18 km/h) using theb rake and accelera‐
to rp edals or ther ockers witc hont hesteering
wheel. Driving and parking
127
Using electronic le
velc ontrol forc harging
with air in an emer gency *
NO
TEDama gedue topressur ebeing too
high If
th ep ressur eint he air suspension bello ws
is tooh igh, thec ompressed-air lines or thea ir
suspension bello wsmaybed amaged. #
Ensur eyou obser vethem aximum per‐
missible operating pressur eof900 kPa
(9 bar/130 psi). Onl
yfor vehicles wit hvalves fore lectronic le vel
control emergency charging. If electroni clevel
control is malfunctioning and thev ehicle is lean‐
ing, youc an raise or lo werthe vehicle bycon‐
necting an extern al compressed-air source toone
of thee mer gency valves (similar ly as withtire
va lve) .Ife lectronic le velc ontrol is no topera‐
tional, youc an driv eoncarefull ytothe nearest
qu alified specialis tworks hop and ha vethem al‐
function remedied. #
Apply thep arking brake. #
Vehicles with automatic transmission:
shif tthe transmission toposition 005D. #
Switc hoffthee ngine. #
Turn thev alvec ap of thec orresponding valve
(1 L=l eft,2R=r ight). #
Connec tthe extern al compressed-air source. #
Raise or lo werthe vehicle le velbyc harging or
re leasing compressed air until thed riving
le ve lh as been reached and thev ehicle is in a
horizontal position. While doing so, ensure
yo uo bse rvet he maximum permissible oper‐
ating pressur eof900 kP a(9bar/130 psi). #
Disconnec tthe extern al compressed-air
source. #
Tighten thev alvec ap on thev alve(1 L=
left, 2R=r ight). #
Driv eonc arefull ytothe neares tqualified
specialis tworks hop. 13 2
Driving and pa rking
Problems with
thee lectronic le velc ontrol Problem
Possible causes/consequences and 0050 0050Solutions
Yo uc anno traise or lo wer
th ev ehicle le velw hen
st ationar y. The compressor is in danger of
overheating. Af terr epeatedly raising and
lo we ring thev ehicle, electronic le velc ontrol (pla yprotection )isdeactiva‐
te d. #
Trytos etthev ehicle le velm anuall yagain af tera pproxima tely
one minute.
Electri cleve lcontrol has been deactivated due tounde rvoltage. The bat‐
te ry ma ynotbe charging.
Handlin gand ride comfor tmaysuf fer. #
Startt he engine. #
Consult aqualified specialis tworks hop as soon as possible. Re
fueling Re
fueling thev ehicle &
WARNING Risk offire or explosion from
fuel
Fu els ar ehighly flammable. #
Fire, open flames ,smokin gand creation
of spar ksmus tbea voided. #
Swit chofft he ignition and, if available,
th es tationar yheater ,befor eand while
re fueling thev ehicle. &
WARNING Risk of inju ryfrom fuels
Fu els ar epoisonous and hazardous to your
health. #
Do no tswa llowf uel or le titcomeinto
con tact wi thskin, eyes or clo thing. #
Do no tinhale fuel vapor. #
Keep children away from fuel. #
Keep door sand windo wsclosed du ring
th er efueling process.
If yo uoro ther people come int ocontact with
fuel, obser vethef ollowing: #
Immediatel yrins efueloffyo ur skin with
soap and water. #
If fuel comes int ocontact wit hyour
ey es, immediatel yrins ethem thor‐
oughly wit hclean water.Seek medical
attentio nimmediately. #
Ifyo us wallowf uel, seek medical atten‐
tio nimmediatel y.Do no tinduce vomit‐
ing. #
Chang eimmediately out of clo thing that
has com eintoc ontact wi thfuel. &
WARNING Risk offire and explosion due
to electros tatic charge
Electros tatic charge can crea tespar ksand
th ereb yignit efuel vapors. #
Befor eyou open thef uel filler cap or
ta ke hold of thep um pn ozzle, touc ht he
me tallic vehicle body.
This dischar gesa ny electros tatic charge
th at ma yhave built up. #
Do no tget intot he vehicle again during
th er efueling process.
Otherwise, electros tatic charge can
buil dupa gain. &
WARNING Risk offire from fuel mixture
Ve hicles wit hadiesel engine:
If yo um ix diese lfuel wit hgasoline ,the flash
poin toft he fuel mixtur eislowerthan that of
pur ediese lfuel.
While thee ngine is running ,component pa rts
in thee xhau stsystem ma yoverheat without
wa rning. #
Neverrefuel using gasoline. #
Neverm ixga soline wit hdiesel fuel. Driving and parking
13 3
#
Replace fuel filler cap 2and tur nitclock‐
wise.
Yo uw ill hear aclickw hen thef uel filler cap is
close dfully. #
Open thef ront left-hand door. #
Close fuel filler flap 1.
% Ve
hicles with adiese lengine and incor‐
re ct fueling pr otector agains trefueling
wit hgasoline: thef iller nec kisdesigned for
re fueling at diesel filling pumps forp assenger
ve hicles.
% Ve
hicles with adiese lengine without an
incor rect fueling pr otector: refueling pre‐
fe rred at diesel filling pumps forp assenger
ve hicles. Ho wever,yo uc an also refuel at a
diesel filling pum pfor truc ks.
% If
th ef uel tank ha sbeenr un comple tely dr y,
add at leas t1.3gal(5l)off uel. Problems wit
hthe fue land fuel tank Problem
Possible causes/consequences and 0050 0050Solutions
Fu el is leaking from the
ve hicle. The fuel line or
thef uel tank is de fective. #
Apply thep arking brake. #
Switc hoffthee ngine. #
Remo vethek eyfrom thei gnition loc k.
Or ,onv ehicles wit hKEYLESS‑GO: #
Open thed rive r's door.
The on-boar delectronics ar einposition 005A.This cor responds tothe
"k ey remo ved". #
Do no tres tart thee ngine under an ycircums tances. #
Consult aqualified specialis tworks hop.
The engine does not
st art. The fuel
tank ha sbeenr un comple tely dr y. #
Refuel thev ehicle wit hatleast1.3gal(5l)off uel. #
Swit chthei gnition on fora pproxima tely tens econds. #
Startt he engine continuously foram aximu moften seconds until it
ru ns smo othly.
If th ee ngine does no tstart: #
Switc hthe ignition on fora pproxima tely tens econds. #
Startt he engine continuously foram aximu moften seconds until it
ru ns smo othly.
If th ee ngine does no tstart afte rt hree attem pts: #
Consult aqualified specialis tworks hop. Driving and parking
13 5
#
Method 2: interrupt thep owe rsupply byacti‐
va ting standb ymode (/ page145). #
Method 3: disconnect all batteries. In this
case, please con tact aq ualified specialist
wo rkshop.
% Charg
ethe star terb atter yevery 6m onths,
eve nifith asbeen disconnected or in
st andb ymode.
The charge leve loft hestar terb atter ymustbe
ch eckede very four we eksifnom easures are
ta ke ntom aintain theb atter ycharge. #
Voltag eoft hestar terb atter ybelow
12 .2 V: charge thes tarter batter ytopreve nt
deep discha rged amage.
% Yo
uc an obtain fur ther information at aquali‐
fi ed specialis tworks hop. St
andb ymode Ac
tivating/deactivatin gstandb ymode
Re quirements:
R The engin eisswitched off.
When youa ctivat estandb ymode ,the energy loss
is minimized if thev ehicle is par kedf or an exten‐
de dp eriod.
St andb ymode has thef ollowing characteristics:
R The star terb atter yisp rotected.
R The maximum non-operational time is shown
inthem edia displa y.
R The connection toonline services is inter rup‐
te d.
R The ATA (anti-thef talarms ystem) is no tavail‐
able.
R The interior motio nsensor and tow- aw ay
alar mfunction sarenota vailable.
If th ef ollowing condition saremet, standb ymode
can be activated or deactivated usin gthe multi‐
media sy stem:
R The engine is switched off.
R The ignition is switched on.
If th ed ispla yedn on-operational time of thev ehi‐
cle is exceeded, ther ec ould be aloss of comfort
and thes tarter batter ycan no longer be guara n‐
te ed toreliably star tt he engine. The
star terb atter ymustfirst be charge dint he
fo llowing situations:
R The non-operational tim eofthevehicle is to
be extended.
R The messa gethat theb atter ycharg eisn ot
suf ficient fors tandb ymode appear sinthe
media displa y.
% St
andb ymode is automaticall ydeactivated
when thei gnition is switched on.
On-boar dcomputer:
4 Settings 5
Vehicle
5 Ruhezustand (Stan dby) #
Toactivate/deactivate: selectYesorNo.
% If
th eo ptions ar egraye do ut, then theb attery
ch arge is no tsufficient fors tandb ymode. Driving and driving saf
etys ystems Note
on driving sy stems and your responsibil‐
ity Yo
ur vehicle is equipped wit hdriving sy stems
whic hassis tyou in driving, parking and maneu‐
ve ring thev ehicle. The driving sy stems ar eaids
and do no trelie veyouofy ourresponsibility.
Alw aysp ayattention tothet raffic and inter vene
if necessa ry.Bea wareofthel imitations rega rd‐
ing thes afeu se of these sy stems. Information about sensors
Cer
tain driving and driving saf etys ystems use
sensors 1tomonitor thea reainf ront of, behind
or next tothev ehicle (depending on thev ehicle's
equipment). Driving and parking
14 5
Depending on
thev ehicle's equipment, ther adar
sensor sareintegrated behind theb umpers
and/or behind ther adiator grill. Keep these parts
free of dirt, ice and slush (/ page195). The sen‐
sor sm ustn otbe co vered, fore xamp leby bicycle
ra ck s, overhanging loads or sticke rs.A fter ac olli‐
sion, ha vethef unction of ther adar sensors
ch eckedataq ualified specialis tworks hop as
damag e(both visible or non-visible) ma yhave
occur redtot he bumper or radiator trim. Fu
nction of driving sy stems and driving
saf etys ystems In
this section, youw illfind information abou tthe
fo llowing driving sy stems and driving saf etys ys‐
te ms:
R ABS ( Anti-lock braking system)
(/ page146)
R ASR (acceleration skid control) (/ page147)
R BAS(Brake Assist System) (/ page146)
R ESP ®
(Electronic Stability Program)
(/ page147)
R EBD ( Electronic Brakeforce Distribution)
(/ page148)
R ActiveB rake Assi st (/ pag e148)
R Cruise control (/ page151 )
R ActiveD ista nce Assi stDISTRONIC
(/ page 152)
R Hill star ta ssis t(/pag e154)
R HOLD function (/ page154)
R Parking Assis tPARKTRONIC
R Rear vie wcamera
R Surround vie wcamera
R ATTENTION ASSIS T(/ pag e156)
R Blind Spo tAssist ( / pag e157)
R ActiveL aneK eeping Assis t(/ pag e161 ) Fu
nctions of ABS (Anti-loc kBraking Sy stem) Obser
vethei mp ortant sa fety guideline sfor the
driving saf etys ystem. ABS cont
rols theb rake pressur eincritical situa‐
tions:
R The wheels ar epreve nted from lo cking when
braking, e.g. during maximum full-s topb rak‐
ing or when ther eisi nsufficient tir etraction
R The steerability of thev ehicle in term sof
ph ysical possibilities is ensured when braking
R ABSisa ctivefroms peeds of appr ox.3m ph
(5 km/h). On aslipper yroad sur face, ABS
inter venes evenify ou onl ybrake gentl y.
Sy stem limits
If th er eisam alfunction and they ellow 0025 ABS
wa rning lam plight supc ontinuousl yinthe instru‐
ment displa yafter startin gthe engine, ABS may
be impaired or inoperative.
If ABS inter venes, youw illfeel ap ulsing in the
brak epedal. The pulsating brak epedal ma ybean
indication of hazardous road condition sand func‐
tions as areminder totake extrac arew hile driv‐
ing.
If ABS in terv enes: keep theb rake pedal firm ly
depresse duntil theb raking situation has passed.
To car ryout maximum full-s topb raking:
dep ress theb rake pedal wit hfull forc e. Fu
nction of BAS(Brak eAssis tSystem) &
WARNING Risk of an accident caused by
am alfunctio ninBAS (Brak eAssistSys‐
te m)
If BA Sism alfunctioning ,the braking dis tance
in an emergency braking situation is
increased. #
Depress theb rake pedal wit hfull force
in emer gency braking situations. ABS
pr eve nts thew heels from locking. BA
Ss uppo rtsy ou wit hadditional braking forc ein
an emer gency braking situation.
If yo ud epress theb rake pedal quickl y,BA Sis
acti vated:
R BASa utom atically boosts theb raking forc eof
th eb rakes
R BASc an sho rten theb raking dis tance
R ABS pr eventst he wheels from locking
When your elease theb rake pedal, theb rakes
function as usual again. BASisd eactivated. 14 6
Driving and pa rking
Fu
nctions of ASR (Acceleration Skid Control) ASR can neither
reduce ther isk of an accident
nor override thel aws of ph ysics if thed rive rd oes
no tp ay attention when pulling away or accelerat‐
ing. ASR is onl yanaid. Alw aysa dap tyour driving
st yletos uitthep reva iling road and weather con‐
ditions.
If yo ua ctivat eord eactivat ethe all-wheel driv ein
av ehicle wit hthis option, ASR will be deactivated
fo rt he duration of thea ctivation/deactivation
process.
Ve hicles without steering wheel but tons: if
ASR is malfunctioning, the00E5 indicator lamp
lights up while thee ngine is running and the
engine output ma ybereduced (/ page25).
ASR impr ovestraction, i.e. thet ransfer of po wer
from thet ires tother oad sur face, foras ustained
period and thereb y,also impr ovesthe driving sta‐
bilit yoft hevehicle. If thed rive wheels star tto
spin, ASR brakes individuald rive wheels and lim‐
its thee ngine torque. ASRthus significantly
assists youw hen pullin gawaya nd accelerating,
especiall yonw etor slippe ryroads.
If traction on ther oad sur face is no tsufficient,
eve nASR will no tallow youtop ullaway without
dif ficulty .The typ eoftires and totalwe ight of the
ve hicle as well as theg radient of ther oad also
pla yac rucial role.
If AS Rinter venes, the00E5 warning lam pinthe
Instrument Displa yflashes. Fu
nctions of ESP ®
(Electronic Stability Pro‐
gr am) &
WARNING Risk of skidding if ESP ®
is
malfunctioning
If ESP ®
is malfunctioning ,ESP ®
canno tcarry
out vehicle stabilization. In addition ,other
driving saf etys ystems ar eswitched off. #
Driv eonc arefull y. #
Have ESP ®
ch eckedataq ualified spe‐
cialis tworks hop. &
WARNING Risk of skidding if ESP ®
is
deactivated
If yo ud eactivat eESP®
,E SP ®
canno tcarry out
ve hicle stabilization. #
ESP ®
shoul donlybed eactivated in the
fo llowing situations. If
th es urface requ ires, temp oraril ydeactivate
ESP ®
when pulling away .
Do no toperate thev ehicle on aroller dynamo me‐
te r( e.g. forap erform anc etest). If youh aveto
operat ethe vehicle on aroller dynamo meter,con‐
sult aqualified specialis tworks hop beforehand.
If yo ua ctivat eord eactivat ethe all-wheel driv ein
av ehicle wit hthis option, ESP ®
will be deactiva‐
te df or thed uration of thea ctivation/deactiva‐
tion process.
If ESP ®
is malfunctioning or deactivated, the
00E5 warning lam plight supw hilethee ngine is
ru nning and thee ngine output ma ybereduced
(/ page25).
% Onl
yuse wheels wit hthe recommended tire
sizes. Only then will ESP ®
function properly.
ESP ®
can, within ph ysical limits, monitor and
impr ovedriving stabilit yand traction in thef ol‐
lowing situations:
R When pullinga wayonw etor slippe ryroad
sur faces
R Whe nbraking
R Ifyo ua redrivin gfastert han 49.7 mph
(80 km/h) in stro ng crosswinds
If th ev ehicle is deviating from thed irection
desired bythed rive r,ESP ®
can stabiliz ethe vehi‐
cle byper form ing thef ollowing actions:
R One or mor ewheels ar ebraked
R The driv esystem per form anc eisa dapted
depending on thes ituation
If ESP ®
is deactivated 00BB,the00E5 warning
lam plight supc onstantly in theI nstrument Dis‐
play:
R Vehicle stabilizatio nmaybe dela yed
R Crosswind Assis tisstilla ctive
R The driv ewheels ma ystart to spin
R ASR traction control is no longer active
If ESP ®
is deactivated, ESP ®
will still suppor tyou
when braking.
If the 00E5 warning lam pinthe Instrument Dis‐
pla yflashes, one or mor ewheels ha vereached
th eir tir etraction limit:
R Adapty our driving styletos uitthep reva iling
ro ad and weather conditions
R Do no tdeactivat eESP®
unde rany circum‐
st ances Drivin
gand parking 147
Ac
tivating/deactivatin gESP®
(Electronic Sta‐
bility Prog ram) On-boa
rdcompu ter:
4 Settings 5
DriveAssist 5
ESP (ESP) #
Select Ein(On) or Aus00BB (Off). Fu
nctions of ESP ®
Crosswind Assist Crosswind Assis
tdoes no treact under thef ollow‐
ing conditions:
R The vehicle is subjected tosevere jolts and
vib rations, e.g .asar esult of une vens urfaces
or po tholes.
R The vehicle loses traction, e.g. on sno worice
or when hydroplaning.
R The driver is per form ing sudden and lar ge
st eering mo vements.
Crosswind Assis tisoperational again as soon as
th ed riving conditions retur nton ormal.
Crosswind Assi stdetects stro ng crosswind gu sts
th at can impair abilit yofyourvehicle todrive
st ra ight ahead. Crosswin dAssis tinter venes
depending on thed irection and stre ngt hoft he
crosswind.
As tabilizin gbrake applicatio nhelps youtok eep
th ev ehicle on trac k.
Information is shown in thei nstrument clus terin
th ee vent of aclear lydiscernible inter vention by
Crosswind Assist.
Crosswind Assis tisactiveabove avehicle speed
of 50 mph(80 km/h) when driving stra ight or
slightly cornering. Fu
nction of ESP ®
trailer stabilization &
WARNING Risk of accident in poo rroad
and weather conditions
In poor road and weather conditions, the
traile rstabilizatio ncanno tpreve nt lur ching of
th ev ehicle/trailer combination .Trailer sw ith
ah igh cen terofg ravity ma ytipove rbefore
ESP ®
de tects this. #
Alwaysa dap tyour driving styletos uit
th ec urrent road and weather condi‐
tions. ESP
®
trailer stabilizatio ncoun tera cts critica ldriv‐
ing situations in goo dtime and thereb yprovides conside
rable assis tance when driving wi th a
traile r. Trailer stabilizatio nispartofE SP®
.
If th es ensor sy stem and evaluatio nlogic de tect
trailer swinging mo vements, ESP ®
trailer stabili‐
zation initiall ybrake sindividual vehicle wheels in
at arge tedm anner .Itthus cou nteracts swinging
mo vements. If thes winging mo vements do not
st op, thev ehicle is braked until thev ehicle/
trailer combination is stabilized. If necessar y,the
ve hicle's engine output is limited.
If yo ur vehicle wit htrailer (vehicle/trailer combi‐
nation) starts toswer ve,y ou ar eable tostabilize
th ev ehicle/trailer combination onl ybybraking.
ESP ®
trailer stabilizatio nhelps youtos tabilize
th ev ehicle/trailer combination in this situation.
ESP ®
trailer stabilizatio nisactiveats peeds
abo veappr oximately 40 mph(65 km/h).
If ESP ®
is de activated because of amalfunction,
trailer stabilizatio nwill no tfunction. Fu
nction of EBD (electronic brak eforce distri‐
bution) EB
Dh asthef ollowing characteristics:
R monitoring and controllin gthe braking force
on ther ear wheels
R impr oving driving stabilizatio nwhen braking,
especiall yonb ends Fu
nction of Activ eB rake Assi st Ac
tiveB rake Assi stconsi stsoft hefollowing func‐
tions:
R Distance warning function
R Autonomous braking function
R Situation-dependent braking assis tance
Ac tiveB rake Assi stcan hel pyou tominimize the
ri sk of acollision wit hvehicles or pedestrians or
to reduce thee ffects of suc hacollision.
If Ac tiveB rake Assi sthas de tected arisk of colli‐
sion, youw ill be warned visuall yand acousticall y.
If yo udon otreact tothev isual or acoustic warn‐
ing, autonomous brakin gcan be initiated in criti‐
cal situations.
If th er ea repedestrians and cyclists crossing: in
especiall ycritical situations, ActiveB rake Assi st
can initiat eauton omous braking di rectl y.In this
case, thev isual and acoustic warning occurs
simultaneousl ywitht he braking application. 14 8
Driving and pa rking