Page 121 of 322

Switching of
fautomatic climat econtrol #
Use the0097 rocker switc htochangethe air‐
fl ow setting and air distribution
(/ page97) .
Th eo ther settingr emainsunaf fected bythe
ch ange. Au
tomaticall ycontrolling the climat econtrol
in the rear comp artment Re
quirements:
R Rear-compartment climat econtrol has been
swit ched on (/ page96).
In automatic mode, thet emperature, air flow and
air distribution ar eregulated and kept cons tant. #
Press the /
00A4 button. #
Press the0058 button.
% Even if
thef ront-compartmen tsystemisin
automatic mode, ther ear-compartment sys‐
te mc anexit automatic mode if youa djust
th eb lowe ront herear-compartment menu.
% If
th ea ir is cooled and thed rive r,front
passenger or sliding door is opened, ther ear
air conditioning sy stem blo werist urned
down af tera round 15minutes.
When all door shave been closed again, the
blo werw illber esettot he pr evious setting
af te ra round one minute. Information on
thea ir distribution settings The symbols on
thed ispla yindicat ethe vents
th ro ugh whic hthe air is being directed.
TEMPMATIC R 0087 Defros tera nd center vents
R 008F Allvents
R 009C Center vents
R 009F Center and foot we llve nts
3-zone au tomatic clima tecontrol
R 0061 Defros terv ents
R 0087 Defrost er and center vents
R 008F Allvents
R 0086 Defros tera nd foot we llve nts
R 009C Center vents
R 009F Center and foot we llve nts
R 009B Footwe llve nts Settin
gthe air distribution Re
quirements:
R The climat econtrol sy stem is switched on. #
Press the008F button repeatedl yuntil the
desired air distribution appear sinthe air con‐
ditioning sy stem displa y. Switching
thes ynchronization function on
and off Re
quirements:
R The climat econtrol sy stem has been
switched on (/ page95).
The synchronization function cont rols thec limate
cont rolfunction centrally .The settings fort he
te mp eratur eand air flow inthef ront zonea re
automaticall yadop tedf or ther ear zone. #
Press the0015 button.
% If
th er ear-compartment climat econtrol has
been swit ched off, youc an swit chit on auto‐
matically bypressing the0015 button. Re
moving condensatio nfromt he windo ws Misting on
thei nsid eofw indows #
Press the0064 button.
When thew indshield defros teriss witched on,
th et emperatur eand air flow canno tbeadjus‐
te d. #
Invehicles wit haheating sy stem and aman‐
ual air-conditionin gsystem, also close the
side and center air vent (/ page 98) as well
as thea irve nts fort he rear compartment
(/ page99). #
Vehicles with dual or 3-zone automatic cli‐
mat econtrol: pressthe005A button and, if
necessar y,use the008F button todirect the
air ont othe windshield 0061. #
Increase thea irflow as necessar yand close
all air vents (/ page 98). #
Ifth ew indo wsremain fogged up: press
the 0064 button.
When thew indshield defros teriss witched on,
th et emperatur eand air flow canno tbeadjus‐
te d.
0064 or no symbol will appear on thec limate
cont rols ystemd ispla y. Climat
econtrol 97
Page 122 of 322

#
Vehicles with windshiel dheating: press
the button.
#
Close thec enter air vent (/ page 98) and
air vents fort he headroom (/ page99) and
re ar compartment (/ page99).
Mistin gonthe outside of windo ws #
Switc hont he windshield wiper (/ page88). Switching air-recirculation mode on and off
#
Press the0089 button.
The interior air is recirculated.
The ai r-re circulation mode switches of fautom ati‐
cally.
% When air-recirculation mode is switched off,
th ew indo wsmayfog up mor equickl y.Switch
on ai r-re circulation mode only briefly.
Air-recirculation mode au tomatical lyswitches on
in thef ollowing cases:
R at high outside temp eratures
R while thev ehicle is driving in atunnel (only
ve hicles wit h3-zone automatic climat econ‐
trol)
R when thew indshield wiper sareswitched on
(/ page88)
The indicator lam ponthe0089 button will not
light up in this case. Af teram aximu mof
30 minutes, outsid eair is automatically intro‐
duced again. Switching
thew indshield heating on and off %
In
thee vent of high outsid etemperatures,
th ew indshield heating ma ynottur no n. #
Press theb utton fort he windshield heating.
If th ei ndicator lam plights up, thew indshield
heating is switched on.
% The windshield heating switches of
fautomat‐
ically af teraf ewminutes.
% If
th eb atter yvoltag eistoo lo w,it ma ynotbe
possible toswitc hthe windshield heating on.
If th eb atter yvoltag ebecomes tool ow while
th ew indshield heating is in operation, the
windshield heating will swit choffa utomati‐
cally. Switching
ther ear windo wdefros tero noro ff #
Press the006C button.
If th ei ndicator lam plights up, ther ear win‐
do wd efros teriss witched on. Operating air
vents Ad
justin gthe front-compartmen tairve nts &
WARNING ‑Danger of bu rnsorf rostbite
due tobeing tooc lose tothea irve nts
Ve ry hotorv eryc old ai rcan flow from thea ir
ve nts.
Thi scould result in burns or frostbit einthe
immediat evicinity of thea irve nts. #
Makesur ethat all vehicle occupants
alw aysm aintain asufficient dis tance to
th ea irve nts. #
If necessa ry,d irect thea irflow to
ano ther area of thev ehicle interior. #
Toopen or close: hold center2 of air
ve nt 1 and tur nittot he leftorright as far
as it will go. #
Tosetthe air direction: holdcenter 2 of
air vent 1 and swivel it up wards, down‐
wa rds, to thel eftortot heright. 98
Climat econt rol
Page 123 of 322

#
Toopen or close: turnthe adjustment
wheels 1ontheh igh-po werairve nts tothe
lef torr ight as farast heyw ill go.
% Cooled air will
flow out of theh igh-po werair
ve nts. Heating will no tbep ossible .Opent he
high-po werairve nts only in summer du ring
cooling mod eand keep them closed in win‐
te r. Ad
justin gairve nts in ther oof air duct In
vehicles wit hrear-compartment air condition‐
ing, adjus table air vents ha vebeen integrated in
th er oof air duct. #
Adjustin gthe air flow: if necessar y,open or
close thea irflaps in air vents 1. #
Adjustin gthe air distribution: turna irve nts
1 tother equired position. Ve
ntilation nozzles in ther ear &
WARNING ‑Danger of bu rnsorf rostbite
due tobeing tooc lose tothea irve nts
Ve ry hotorv eryc old ai rcan flow from thea ir
ve nts.
Thi scould result in burns or frostbit einthe
immediat evicinity of thea irve nts. #
Makesur ethat all vehicle occupants
alw aysm aintain asufficient dis tance to
th ea irve nts. #
If necessa ry,d irect thea irflow to
ano ther area of thev ehicle interior. Depending on
thev ehicle equipment, ther ew ill
be an air duct or aheater wit hadditional air noz‐
zles in ther ear foot we ll on thel eft-hand side 1.
No object smaybe placed there. Passengers
mus tmaintain asufficient dis tance du etothe
wa rm airflow and air intake. Au
xiliar yheating Fu
nction of thea uxiliar yheating &
DANG ER Risk of fata linjur ydue topoi‐
sonous exhaus tgases
If th et ailpipe is bloc kedors ufficient ventila‐
tion is no tpossible ,poisonous exhaus tgases
suc hasc arbon monoxide ma yenter thev ehi‐
cle. This is thec ase in enclosed spaces or if
th ev ehicle getsstuc kins now, fore xamp le. #
Alwayss witc hthe stationar yheater off
in enclosed spaces without an air
ex traction sy stems, e.g. in garage s. Climate
control 99
Page 124 of 322

#
Keep thet ailpipe and thea reaa round
th ev ehicle free from sno wwhen the
engine or thes tationar yheater ar erun‐
ning. #
Open awindo wont he windwar dside of
th ev ehicle toensur eana dequat esup‐
ply of fresh air. &
WARNING Risk offire due tohots tation‐
ar yh eater components
When thes tationa ryheater is swit ched on,
parts of thev ehicle can become very hot, e.g.
th es tationa ryheater exhaus tsyst em.
Flammable materials suc hasleaves, grass or
twigs ma yignit eift heyc ome int ocontact
wi th:
R hotp arts of thes tationa ryheater exhaust
sy stem
R thee xhau stgasitself
Ther eisar isk offire. #
When thes tationar yheater is swit ched
on, mak esuret hat:
R Hotvehicle parts do no tcome into
contact wit hflammable materials.
R The exhaus tgas can flow out of the
st ationar yheater exhaus tpipe
unhindered.
R The exhaus tgas doe snotcome into
contact wit hflammable materials. *
NO
TEDama getothea uxiliar yheating If
th ea uxiliar yheating is no tused foran
ex tende dperiod of time ,itcan be damaged. #
Switc hthe auxiliar yheating on for
around tenm inutesatl eastonce a
month. *
NO
TEDama getothea uxiliar yheating
due toove rheating If
th eh otair flow is bloc ked, thea uxiliary
heating can overheat and switc hoff. #
Do no tbloc kthe ho tairflow. %
Ve
hicles with modified fuel displa ys:if an
ex tern all yo perated consume risconnec ted
via thec able fort he auxiliar yheater ,this is
no ttaken in toconside ratio nont he "range
re maining" displa yofthe on-boar dcomputer. In
this case, obser vethef uel displa y.The fuel
displa yprovide sthe cur rent le vel.
If yo ua retranspo rting hazardous materials, com‐
ply wit hthe releva nt sa fety regulations. Alw ays
place objects at asufficient dis tance from the
outle topening of thea uxiliar yheating.
Au xilia ryheating worksi ndependentl yofthe
engine and complements thec limat econt rols ys‐
te mint hevehicle. Auxilia ryheating heats thea ir
inside thev ehicle tothes ettemp erature. Hot-water auxiliar
yheater Fu
nction of theh ot-wat er auxiliar yheater
The hot-water auxiliar yheater complements your
ve hicle's climat econt rols ystem, and has a
heater boos ter,auxiliar yheating and auxiliary
ve ntilation function. In addition, thea uxiliary
heating sy stem heats thee ngine coolant topro‐
te ct thee ngine and sa vefuel during thew arming-
up phase. The auxiliar yheatin gheats thea ir
inside thev ehicle tothes ettemp erature. It is not
dependent on theh eat output of ther unning
engine .The auxilia ryheating is operated directly
using thev ehicle's fuel. Forthis reason ,the fuel
ta nk mus thave been filled abo vether eser vefuel
le ve lsot hatthea uxiliar yheating can work.T he
auxilia ryheating automatically adapts its operat‐
ing mode totheo utside temp eratur eand
we ather .Itist herefor epossible that thea uxiliary
heating ma yswitc hfromv entilation toheating
mode or from heating toventilation mode. When
th ee ngine is running ,auxilia ryventilation is not
acti ve.A uxiliar yheating automatically switches
itself of fafter am aximu mof50m inutes.Yo u
canno tuse the" auxiliar yventilation" operating
mode tocool thea ir inside thev ehicle tobelow
th eo utside temp erature. Auxilia ryheating helps
to heat up thev ehicle while thee ngine is running
and at lo woutsid etemperatures.
Operating theh ot-w ater auxiliar yheater dr aws
po we rfromt hevehicle batter y.Therefore, driv ea
re asonabl ylon gd ista nce af terh eating or ventilat‐
ing thev ehicle twice in succession at most.
Au xilia ryheating can be activated onl yattemper‐
atures belo w40°F(4.5 °C).
Switching theh ot-wat er auxiliar yheatin gon
and of fwitht he button
Re quirements:
R The fuel tank is filled abo vether eser vefuel
le ve l. 100
Climat econtrol
Page 125 of 322

Switching auxiliar
yheating on and off #
Toswitc hon:press the003B button. #
Toswitc hoff:press the003B button.
Switching on thes pecified temperature #
Swit chon thei gnition. #
Toswitc hon:press the003B button. #
Toswitc hoff:press the003B button. #
Setthe temp eratur eusing the0082 button. #
Press the003B button.
The redorb lue indicator lam ponthe003B
button goes on or off.
Color softhe indicator lamp:
R Blue: auxiliar yventilation has been switched
on.
R Red:auxilia ryheating has been switched on.
R Yello w: departur etime has been pre-selec‐
te d.
Au xilia ryheating or ventilation switches of fafter
am aximum of 50 minutes.
Swit ching heater boos term ode on and off #
Toswitc hon:star tt he engine. #
Press the003B button. #
Toswitc hoff:press the003B button.
Heater boos term ode willbes witched on at
an outsid etemperatur eoflessthan 32 °F
(0 °C) when necessar y.
% Heater boo
ster mode is available onl yfor
ve hicles wit hhot-water auxiliary heatings. Ad
justin gthe hot-water auxiliar yheaterw ith
the on-boar dcom puter
Re quirements:
R The fuel tank is filled abo vether eser vefuel
le ve l.
R The ignition is switched on.
On-boar dcomputer:
4 Settings 5
Heating
Setting thes witch-on time #
Select Settings. #
Selec tthe desired departur etime.
Ac tivatin gthe departur etime #
Activat ethe departur etime byticking the
box.
% Ensur
ethat A,Ba ndCe achc orrespond to a
programmed departur etime.
% The programmed time
remains se tonlyu ntil
th en exttime thee ngine is star ted.
Selecting prog rammed time #
Setthe requ ired programmed tim eA,BorC.
% The
requ ired prog rammed time A,BorC will
appea ronly if theb oxtoactivat ethe depar‐
tur etime is tic ked. #
Select ther equired programmed time by
swiping lef torright, e.g. A,BorC.
Problems with ho twater auxiliar yheating Problem
Possible causes/consequences and 0050 0050Solutions
FA IL00A3 Signal transmission between transmitter and
vehicle is malfunctioning. #
Chang eyour position in relation tothev ehicle, moving closer if nec‐
essar y.
FA IL Thestar terb atter yisn otsuf ficiently charge d. #
Charg ethe star terb atter y.
The fuel tank is no tfilled up tother eser veleve l. #
Refuel at then eares tgas station.
FA IL0099 Au
xilia ryheating is malfunctioning. #
Have thea uxiliar yheating checkedataq ualified specialis twork‐
shop. Climat
econtrol 101
Page 126 of 322
Operating cargo compartment
ventilation If
yo ur vehicle is equipped wit haroofventilator,
yo uc an admit fresh air tothec argo compart‐
ment ,orextract ai rfromitasw ell. #
Switc hont he ignition. #
Toswitc hona ndextract: press switch 1
at thet op.
The roof ventilator remo vesu sed air from the
cargo compa rtment. #
Toswitc hona nd admit fresh air: press
switch 2attheb ottom.
The roof ventilator feeds fresh air int othe
carg ocompa rtment. #
Toswitc hoff:setthe switc htothe center
position. 102
Climat econtrol
Page 127 of 322

Driving
Swit
ching on po wersuppl yori gnitionw ith
the start/s topb utton &
WARNING Risk of accident and inju ry
due tochildren lef tunat tende dint he
ve hicle
If ch ildren ar eleftu nat tende dint hevehicle,
th ey could:
R opendoors,t hereb yendangering other
persons or road users.
R geto utofthev ehicle and be hit by
oncomin gtraffic.
R operat evehicle equipment and become
trapped, fore xamp le.
In addition ,children could also se tthe vehicle
in motion, fore xamp le,by:
R releasing thep arking brake.
R shifting thea utomatic transmission out of
par kposition 005D.
R startin gthe engine #
Neverlea 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. #
Keep theS martK eyout of ther eac hof
ch ildren. &
DANG ER Risk of fata linjuries due to
ex haus tgases
Combustio nengines emit poisonous exhaust
ga ses suc hascarbon monoxide. Inhaling
th ese exhaus tgases is hazardou stohealth
and can lead topoisoning. #
Neverlea ve thee ngine running in an
enclose dspace wi thout suf ficient venti‐
lation. &
WARNING Risk offire caused byflamma‐
ble material on thee xhau stsystem
Flammable materials brought in byeither ani‐
mals or environmen talinfluences ma yignit eif
th ey come int ocontact wi thhotp arts of the
engine or exhaus tsystem. #
Therefore, checkr egularly that ther ea re
no flammable materials in thee ngine
compartmen torontheexhaus tsystem. Re
quirements:
R The keyisind etection rang eoft he antenna
(/ page41) and thek eybat tery is no tdis‐
ch arge d. #
Toswitc hont he powersuppl y:press but‐
ton 1once.
Yo uc an no wactivat ethe windshield wipers,
fo re xamp le.
The po wersupp lyis switched of fagain when one
of thef ollowing condition sismet:
R thed rive r's door is open.
R youp ress button 1twice. #
Toswitc hont he ignition: press button1
twice.
The indicator lamps appear in thei nstrument
clus ter.
The ignition is switched of fagain when one of the
fo llowing condition sismet:
R youdon otstar tt he vehicle within
15 minutes.
R youp ress button 1once. Drivin
gand parking 103
Page 128 of 322

St
arting thee ngine St
arting thev ehicle wit hthe start/s topb ut‐
ton &
WARNING Risk of accident and inju ry
due tochildren lef tunat tende dint he
ve hicle
If ch ildren ar eleftu nat tende dint hevehicle,
th ey could:
R opendoors,t hereb yendangering other
persons or road users.
R geto utofthev ehicle and be hit by
oncomin gtraffic.
R operat evehicle equipment and become
trapped, fore xamp le.
In addition ,children could also se tthe vehicle
in motion, fore xamp le,by:
R releasing thep arking brake.
R shifting thea utomatic transmission out of
par kposition 005D.
R startin gthe engine #
Neverlea 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. #
Keep theS martK eyout of ther eac hof
ch ildren. Re
quirements:
R The keyisind etection rang eoft he antenna
(/ page41) and thek eybat tery is no tdis‐
ch arge d. #
Vehicles with automatic transmission:
shif tthe transmission toposition 005Dor005C. #
Depress theb rake pedal and press button 1
once. #
Ifth ev ehicle does no tstart:s witc hoffunnec‐
essar yconsumer sand press button 1once. #
Ifth ev ehicle still does no tstart and thed is‐
pla ym essage Place the Key in the Marked
Space See Operator's Manual appearsinthe
multifunction display: star tt he vehicle in
emergency operation mode.
St arting thev ehicle in eme rgency operation
mode &
WARNING Risk of accident and injury
du etoc hildren lef tunat tende dint he
ve hicle
If ch ildren ar eleftu nat tende dint hevehicle,
th ey could:
R opendoors,t hereb yendangering other
persons or road users.
R geto utofthev ehicle and be hit by
oncomin gtraffic.
R operat evehicle equipment and become
trapped, fore xamp le.
In addition ,children could also se tthe vehicle
in motion, fore xamp le,by:
R releasing thep arking brake.
R shifting thea utomatic transmission out of
par kposition 005D.
R startin gthe engine #
Neverlea 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. #
Keep theS martK eyout of ther eac hof
ch ildren. If
th ev ehicle does no tstart and thePlace the
Key in the Marked Space See Operator's Manual
displa ymessag eappear sinthe multifunction dis‐
pla y,yo uc an star tt he vehicle in emer gency oper‐
ation mode. 104
Driving and pa rking