Page 145 of 322

DSR is in
standb ymode.
R DSR is inactive:
-
as soon as youe xceed 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 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. #
Brak eora ccelerat ethe vehicle tothed esired
speed on thed ownhill gradient. #
Release theb rake or accelera torp edal.
The cur rent speed is stored.
or #
Press rocker switch 1up or down during a
DSR regulation.
The las tsave dspeed is increased or reduced. #
Release rocker switch 1.
The cur rent speed is stored.
or #
Press rocker switch 1up or down until
desired speed is reached. #
Release rocker switch 1.
The cur rent speed is stored.
% It ma
ybeam oment befor ethe vehicle starts
to brak etot he se tspeed. Take this dela yinto
account when setting thes peed wit hrocker
switch 1. Deactivating DSR
#
Press theu pper section of switch 1.
or #
Accele rate and driv efastert han 28 mph
(45 km/h).
DSRd eactivates automaticall yinthefollowing
situations:
R As soon as youe xceed aspeed of 28 mph
(45 km/h).
R Ther eisam alfunction in theE SP®
or ABS
sy stem. Electronic le
velc ontrol Fu
nction of ENR (electronic le velc ontrol) &
WARNING Risk of entrapment from vehi‐
cle lo wering
Whe nlowe ring thev ehicle, people could
become trapped if their limbs ar ebetwe en
th ev ehicle body and thet ires or underneath
th ev ehicle. #
Mak esurenoo ne is underneat hthe
ve hicle or in thei mmediat evicinit yof
th ew heel ar ches when youl owe rthe
ve hicle. &
WARNING Risk of inju ryfrom jac ktip‐
ping
If yo up arkav ehicle wit hair suspension, the
air suspension ma yremain acti vatedf or up to
one hour ,evenw hen thei gnition is switched
off. If yout hen raise thev ehicle wit hthe jac k,
th ea ir suspension will attem pttoadjus tthe
ve hicle le vel. Driving and parking
121
Page 146 of 322

The jac
kmaytip. #
Press theS ervice button on thea ir sus‐
pension remo tecontrol befor eraising
th ev ehicle.
This pr events au tomatic readjustment
of thev ehicle le vela nd pr events it from
being raised or lo weredm anually. &
WARNING Risk of accident du etolow‐
ered or raised chassis
Drivin gwithal oweredorr aised chassis may
greatl yimp air brakin gand handlin gcharac‐
te rist ics. Youm ayalso exceed thep ermissible
ve hicle height when thec hassi sisraised. #
Setthe driving le velb efor epulling away. &
WARNING Risk of accident from mal‐
function of electronic le velc ontrol
If elect ronic le velc ontrol is malfunctioning,
th ev ehicle le velm aybe asymmetrical, too
high or tool ow.
The driving and steering characteristic softhe
ve hicle ma ybenoticeabl ydiffe re nt. #
Adapty our driving stylea ccording lyand
driv ecarefull y. #
Stop, paying attention toroad and traf‐
fi cc onditions. #
Consul taqualified specialis tworks hop. *
NO
TERisk of damag etothechassis from
lo we redv ehicle le vel If electronic le
velc ontrol is malfunctionin gor
re adjusts while youa redriving, thev ehicle
le ve lm aybe lo wered. #
Paya ttention tother oad conditions and
ensur ether eiss ufficient ground clear‐
ance. #
Driv ecarefully. The le
veloft hevehicle depends on vehicle load
and thel oad distribution. Elect ronic le velc ontrol
adjusts thel evel of ther ear axle automaticall yon
ve hicles wit hanair-sprung rear axle .The vehicle
le ve list hereb yalway sm aintained at thed riving
le ve l,re ga rdless of vehicle load. Driving dynamics
re main unaf fected. The height dif fere nce
between thes ides of thev ehicle ma ybeupto
0.4 in (1 cm). Electronic le
velc ontrol is no tengine-dependent
and is onl yoperational when thei gnition is
switched on. The electronic le velc ontrol com‐
pressor worksa udibl y.
% If
th ec ompressor worksc ons tantly or starts
up se veraltimes per minute, elect ronic le vel
control is malfunctioning.
Depending on thev ehicle equipment, electronic
le ve lc ontrol switches between manual and auto‐
matic mode depending on either thev ehicle
speed or thep osition of thep arking brake.
If electronic le velc ontrol switches depending on
ve hicle speed, manual operation is automatically
activated when thev ehicle is stationar y.Yo um ay
ra ise or lo werthe vehicle le vel. If yous ubse‐
qu ently drivefastert han 6mph (1 0km/h), man‐
ual mode is automaticall ydeactivated and auto‐
matic mode sets thev ehicle le vel.
If elect ronic le velc ontrol switches depending on
th ep arking brak eposition ,manual mode is auto‐
maticall yactivated when thep arking brak eis
applied. Youm ayraise or lo werthe vehicle le vel
to load and unload. If your elease thep arking
brake, manual mode is automaticall ydeactivated
and automatic mode sets thed riving le vel.
When working on thev ehicle or changing a
wheel, youc an deactivat eelectronic le velc ontrol
(/ page123).
If electronic le velc ontrol is malfunctionin gorthe
ve hicle le velist oo high or tool ow ,ana udible sig‐
nal sounds.
The drivin gand steering characteristic softhe
ve hicle will be noticeably dif fere nt. Electronic
le ve lc ontrol adjusts thev ehicle le veltot he nor‐
mal le velass oon as possible. Continue driving
carefull yuntil thea udible signal stops. Onl ythen
is thev ehicle at normal le vel.
Au tomatic mode and electronic le velc ontrol
automaticall yswitc hona gain to restor et he vehi‐
cle le vel, depending on theo ption selected:
R when thep arking brak eisreleased
R from speeds of appr oximatel y6mph
(1 0k m/h)
If th ee lectronic le velc ontrol compressor thre at‐
ens to ov erheat, e.g. due torepeated raising or
lo we ring wi thin as hor tperiod, elect ronic le vel
control is deactivated. Youc an raise or lo werthe
ve hicle le vela ga in af tera pproxima tely
one minu te. 12 2
Driving and pa rking
Page 147 of 322

Ra
ising and lo weringthev ehicle le vel Using
ther emo tecontrol
The remo tecontrol is loca tedinah older on the
B‑pilla ronthe driver's side. Remo vether emo te
control from theh older befor euse. Elect
ronic le velc ontrol per form sas elf-chec kreg‐
ularly when it is activated and while in use. Indi‐
cator lamp 1onther emo tecontrol lights up for
appr oximately one second when yous wit ch on
either thei gnition or electronic le velc ontrol with
button 4.
Ther eisam alfunction if indicator lamp 1
beha vesint hefollowing ways:
R thei ndicator lam pdoes no tlight up when you
switc hont he ignition or electronic le velc on‐
trol
or
R thei ndicator lam pdoes no tgoout aftero ne
second
or
R thei ndicator lam pthen lights up again or
fl ashes
In addition ,awarning tone is emitted from the
re mo tecontrol fora pproxima tely 30 seconds.
The fault that has been de tected can be shown
using thei ndicator lamps (signaling of fault
codes). #
Park thev ehicle, leaving thei gnition switched
on. #
Toraise or lo werthe vehicl elevel: press
and hold button 2or3 until thev ehicle
le ve lreaches ther equired height.
The indicator lam ponbutton2or3
fl ashes as lon gasthevehicle le velisb eing
ch anged. When thev ehicle le velh as been set,
th ei ndicator lam ponbutton2or3 lights
up. #
Tolowe rautomatical ly:brie flyp ress but ton
3 .
Electroni cleve lcontrol automaticall ylow ers
th ev ehicle down tothel owest position.
The indicator lam ponbutton3flashes as
lon gast hevehicle le velisb eing changed.
When thev ehicle le velh as been set, thei ndi‐
cator lam ponbutton3lights up. #
Tostop them ovement, brief lypress button
2. #
Toraise or lo wertod riving le vel:brief ly
press button 2or3.
Elect ronic le velc ontrol automaticall yraises or
lo we rsthev ehicle todriving le vel.
The indicator lam ponbutton2or3
fl ashes as lon gasthevehicle le velisb eing
ch anged. When thev ehicle le velh as been set,
th ei ndicator lam ponbutton2or3 lights
up. #
Tostop them ovement, brief lypress theo ther
button. #
Tosave thes etvehicl eleve l:se tthe
re qu ired vehicle le vel. #
Press and hold button 5or6 until youh ear
at one.
The vehicle le vels et has been sa vedonc orre‐
sponding button 5or6. #
Tocall up thes ave dvehicle le vel:briefly
press button 5or6.
Electronic le velc ontrol automaticall yraises or
lo we rsthev ehicle tothes ave ddriving le vel.
The indicator lam ponbutton5or6
fl ashes as lon gasthevehicle le velisb eing
ch anged. When thev ehicle le velh as been set,
th ei ndicator lam ponbutton5or6 lights
up. #
Tostop them ovement, brief lypress button
2 or3. #
Toswitc hona utomaticall y:driv eato ver
6.2 mph(10 km/h) or release thep arking
brake.
Elect ronic le velc ontrol controls thev ehicle
le ve la utomaticall y. #
Tostop them ovement, brief lypress button
2 or3.
Switching electronic le velc ontrol off/on #
Toswitc helectronic le velc ontrol off:
press button 4.
The indicator lam ponbutton4lights up. Driving and parking
12 3
Page 148 of 322

#
Toswitc helectronic le velc ontrol on
again: press button 4again.
The indicator lam ponbutton4goes out.
Using theb uttonint he control panel #
Park thev ehicle, leaving thei gnition switched
on. #
Tolowe rautomatical ly:brie flyp ress the
lo we rsection of switch 2.
Electronic le velc ontrol automaticall ylow ers
th ev ehicle. #
Tostop them ovement, brief lypress theu pper
section of switch 1. #
Toraise todriving le vel:briefly press the
upper sectio nofswitch 1.
Electroni cleve lcontrol automaticall yraises
th ev ehicle tothed riving le vel. #
Tostop them ovement, brief lypress thel ower
section of switch 2. #
Toswitc hona utomaticall y:driv eato ver
6.2 mph(10 km/h) or release thep arking
brake.
Elect ronic le velc ontrol controls thev ehicle
le ve la utomaticall y. Using electronic le
velc ontrol forc harging
with air in an emer gency 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 (tir evalves). If elect ronic
le ve lc ontrol is deactivated, youc an driv eon
carefull ytothe neares tqualified specialis twork‐
shop and ha vethem alfunction remedied.
* 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 eof600 kPa
(6 bar/8 7psi). #
Appl ythe parking brake. #
Vehicles with automatic transmission:
shif tthe transmission toposition 005D. #
Switc hoffelectronic le velc ontrol
(/ page123). #
Switc hoffthee ngine and open theh ood
(/ page173). #
Unscr ewthev alvec ap of thec orresponding
va lve. #
Connect thee xternal co mpressed-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 eof600 kP a(6bar/87psi). #
Disconnec tthe extern al compressed-air
source. #
Tighten thev alvec aps on thev alves. #
Close theh ood (/ page173). #
Driv eonc arefully tothen eares tqualified
specialis tworks hop. 124
Driving and pa rking
Page 149 of 322

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 or explosion from
electros tatic charge
Electros tatic charge can crea tespar ksand
th ereb yignit efuel vapors. #
Befor eopenin gthe fuel filler cap or tak‐
ing hol dofthe pum pnozzle, touc ht he
me tallic body of thev ehicle.
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 could
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
12 5
Page 150 of 322

*
NO
TEDo no tuse diese ltorefuel vehicles
wit hag asoline engine. If
yo ua cciden tally refuel wit hthe wrong fuel:
R Do no tswitc hthe ignition on. Otherwise
fuel can enter thee ngine.
Even small amounts of thew rong fuel
could result in damag etothe fuel sy stem
and thee ngine. The repair costs ar ehigh. #
Consult aqualified specialis tworks hop. #
Have thef uel tank and fue llin es drained
comple tely. *
NO
TEDo no tuse gasoline torefuel vehi‐
cles wit hadiesel engine. If
yo ua cciden tally refuel wit hthe wrong fuel:
R Do no tswitc hthe ignition on. Otherwise,
fuel can enter thef uel sy stem.
Even small amounts of thew rong fuel
could result in damag etothe fuel sy stem
and thee ngine. The repair costs ar ehigh. #
Consult aqualified specialis tworks hop. #
Have thef uel tank and fue llin es drained
comple tely. *
NO
TEDama getothef uel sy stem caused
by ove rfilled fuel tanks. #
Only fill th ef uel tank unti lthe pump
nozzle switches off. *
NO
TEFuel ma yspray out when you
re mo vethef uel pum pnozzle. #
Onlyfillthef uel tank unti lthe pump
nozzle switches off. *
NO
TEDama getopainted sur faces du eto
fuel #
Do no tspillany fuel on painted sur fa‐
ces. +
ENVI
RONMENTAL NOTEEnvironmental
damag eduetoimproper handlin goffuel If fuels ar
ehandled improperly ,the yp ose a
danger topersons and thee nvironment. #
Do no tallowf uels toruni ntot he sew‐
ag es ystem, thes urface wate rs,t he
ground waterorintot he ground. Re
quirements:
R The vehicle is unloc ked.
R The auxiliar yheating is deactivated.
R The ignition is switched off
R The front left-hand door is open.
% Do no
tget back intot he vehicle during the
re fueling process. Otherwise, electros tatic
ch arge could buil dupagain.
Obser vethen otes on operating fluids
(/ page233). 1
Fuelfiller flap
2 Fuelfiller cap
% The fuel
filler flap is besid ethe front left-hand
door when vie wedint he direction of tr avel.
The position of thef uel filler cap 00D4is also
shown in theI nstrument Displa y.The ar row
on thef illing pum pspecifies thes ide of the
ve hicle. #
Open fuel filler flap 1. #
Turn fuel filler cap 2coun ter-clockwise and
re mo veit. #
Close all vehicle door stopreve nt fue lvapors
from entering thev ehicle interior. #
Comple tely slide thef iller nec kofthe pump
nozzle int othe tank ,h oo kinp lace and refuel. #
Fillthef uel tank only unti lthe pum pnozzle
switches off. #
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. 12 6
Driving and pa rking
Page 151 of 322

%
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
incor rect fueling pr otector: youc an also
re fuel at adiesel 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. DEF
Note
sonD EF
* NO
TEWhe nyou open theD EFtank,
small amounts of ammoni avapor may
escape. #
OnlyfilltheD EFtank in well-ventilated
areas. #
Do no tlet DE Fc om eintoc ontact wi th
skin, eyes or clo thes. #
Keep DEFa wayfromc hildren. *
NO
TEDo no tinges tDEF. If DEF is swallo
wed: #
Immediatel yrins eo utyour mout hthor‐
oughly. #
Drink plenty of water. #
Seek medica lattentio nimmediately. *
NO
TEDama gecaused byadditives in
DE Forbyd iluting DEF The DEFe
xhaustgasa ftertreatment sy stem
could be destr oyed bythef ollowing:
R Additives in DEF Driving and parking
127
Page 152 of 322

R
Diluting DEF #
Only us eDEF in acco rdanc ewithI SO
22 241. #
Do no tmix additives. #
Do no tdilut eD EF. *
NO
TEDama geand malfunctions caused
by impurities in DEF Impurities in DE
Fresult in thef ollowing:
R Higher emission values
R Damag etothe catalytic con verter
R Engine damage
R Malfunctions in theD EFexhaus tgas
af te rtre atment sy stem #
Avoid impurities in DEF. *
NO
TEDEF residue cr ystallizes af ter
some time. Remo veDEF residue. #
Immediatel yrins es urfaces that com ein
con tact wi thDEF when filling with
wate r. #
DEF can also be remo vedw ithad amp
clo thand col dwater. #
If DEF has alread ycrystallized, clean
using aspon geand col dwater. DE
Fisa liqu id urea solutio nused fore xhau stgas
af te rtre atment of diese lengines. In order fort he
ex haus tgas af tertre atment tofunction properly,
only use DEF in accordance wit hISO 222 41 .
DEF ha sthe following properties:
R non-t oxic
R colorless and odorless
R non-flammable
DE Fa vailability:
R youc an ha veDEF adde dbyfasts ervice at a
qu alified specialis tworks hop, e.g. an author‐
ized Mercedes-Benz Center.
R DEF is available at numerous gass tations via
DE Ffilling pumps.
R alternatively ,DEF isavailable at qualified spe‐
cialis tworks hops, e.g. an authorized
Mercedes-Benz Center ,and at numerous gas
st ations as aDEFrefill canis terorD EFrefill
bottle. %
DE
Ffreezes at atemperatur eofapprox‐
imatel y12.2 °F (-1 1°C).T he vehicle is equip‐
ped wit haDEF preheating sy stem at thef ac‐
to ry.T hism eans that winter operation is also
ensured fort emperatures belo w12.2 °F
(-1 1° C).Ify ou add DEF at temp eratures
belo w12.2 °F (-1 1°C),the DEF le velint he
instrument clus term aynotbed isplayedc or‐
re ctly .Ift he DEF is frozen, driv efor at least
20 minu tesa nd then par kthe vehicle fora
minimu mof30s econds, so that thel evel is
cor rectl yd ispla yed. In extreme winter condi‐
tions, thet ime needed todetect thet op-up
amount ma ybeconsiderably longer .Parkt he
ve hicle in awarmg arag etos peed up this
process.
% Ensur
ethe connection between ther efill con‐
ta iner and vehicle filler nec kdoes no tdrip.
Calling up theD EFrang ea nd DEF le velg auge
On-board computer:
4 Service #
Select DEFand confirm.
The DEF fill le vela nd theD EFrang ea ppea r. Instrument Displa
ywithc olo rdisplay
1 DEF range
2 DEF fill le vel Instrument Displa
ywithb lack and whit edis‐
play
1 DEFfill le vel
2 DEF range 12 8
Driving and pa rking