
Switching
there ar window wiper on/off 1
00E2 Single wipe/wash
2 00C5 Intermittent wiping #
Single wipe: press button1tothe point of
re sis tance. #
Wiping with washer fluid: press button 1
be yond the point of resis tan ce. #
Toswitch intermittent wiping on or off:
press button 2.
If th ere ar wind owwiper is swit ched on, the
00C5 symbol will appear on the Instrument
Displa y. Re
placing the windshield wiper blades &
WARNING Risk of becoming trapped if
th e windshield wipers are switched on
while wiper blades are being replaced
If th e windshield wipers begin tomo vewhile
yo u are changing the wiper blades, you can
be trapped bythe wiper arm. #
Always switch off the windshield wipers
and the ignition before changing the
wiper blades. &
WARNING Risk of inju ryfrom using the
windshield wipers while the engine hood
is open
When the engine hood is open and the wind‐
shield wipers are set in motion, you can be
trapped bythe wiper linkage. #
Always switch off the windshield wipers
and ignition before opening the engine
hood. %
If
th e wiper blades are wornout, they will not
wipe the windshield proper ly.Re place the
wiper blades twice a year, preferably in
spring and fall. #
Fold wiper arm 3away from the windshield. #
Hold wiper arm 3and turn the wiper blade
aw ay from wiper arm 3inthe direction of
th e ar row asfar as it will go. #
Slide catch 2upwards in the direction of the
ar row until it engages. #
Fold back the wiper blade onto the wiper arm. #
Remo vewiper blade 1from wiper arm. #
Insert new washer blade 1inthe holder on
wiper arm 3.
When doing so, take into account the dif fere nt
lengths of the wiper blades:
R Driver's side: long wiper blade
R Front-passenger side: short wiper blade #
Slide catch 2down wards until it engages. #
Fold wiper arm 3back onto the windshield. Re
placing the windshield wiper blades (WET
WIPER SYSTEM) &
WARNING Risk of becoming trapped if
th e windshield wipers are switched on
while wiper blades are being replaced
If th e windshield wipers begin tomo vewhile
yo u are changing the wiper blades, you can
be trapped bythe wiper arm. #
Always switch off the windshield wipers
and the ignition before changing the
wiper blades. Light and vision
89

&
WARNING Risk of inju ryfrom using the
windshield wipers while the engine hood
is open
When the engine hood is open and the wind‐
shield wipers are set in motion, you can be
trapped bythe wiper linkage. #
Always switch off the windshield wipers
and ignition before opening the engine
hood. %
If
th e wiper blades are wornout, they will not
wipe the windshield proper ly.Re place the
wiper blades twice a year, preferably in
spring and fall. #
Fold wiper arm 3away from the windshield. #
Hold wiper arm 3and turn the wiper blade
aw ay from wiper arm 3inthe direction of
th e ar row asfar as it will go. #
Slide catch 2upwards in the direction of the
ar row until it engages. #
Remo vewiper blade 1from the wiper arm in
th e direction of ar row4. #
Carefully remo vehose 5from the wiper
blade. #
Attach hose 5tothe new wiper blade. #
Insert new washer blade 1inthe holder on
wiper arm 3.
When doing so, take into account the dif fere nt
lengths of the wiper blades:
R Driver's side: long wiper blade
R front-passenger side: short wiper blade #
Slide catch 2down wards until it engages. #
Fold back the wiper blade onto the wiper arm. #
Fold wiper arm 3back onto the windshield. Re
placing the rear window wiper blade #
Fold wiper arm 3away from there ar win‐
do w. #
Press bo thretaining clips 2inthe direction
of the ar row and swivel the wiper blade away
from the wiper arm. #
Pull wiper blade 1upwards out of the holder
on wiper arm 3. #
Insert new washer blade 1inthe holder on
wiper arm 3. #
Push new wiper blade 1onto wiper arm 3
until there taining clips engage. #
Fold wiper arm 3back onto there ar win‐
do w. Mir
rors Operating
the outside mir rors &
WARNING Risk of inju ryfrom adju sting
th eve hicle settings while theve hicle is in
motion
Yo u could lose control of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra int, thesteering wheel or the mir ror
while theve hicle is in motion
R ifyo ufast enyour seat belt while theve hi‐
cle is in motion #
Before starting the engine: adjust the
driver's seat, the head restra int, the 90
Light and vision

st
eering wheel or the mir ror and fasten
yo ur seat belt. &
WARNING Risk of accident due tomis‐
judgment of dis tances when using the
passenger mir ror
The outside mir ror on the front-passenger
side reflects objects on a smaller scale. The
objects in view are in fact closer than they
appear.
As a result, you may misjudge the dis tance
between you and thero ad user driving behind
yo u, forex ample, when changing lanes. #
Therefore, alw ays look overyo ur shoul‐
der in order toensure that you are
aw are of the actual dis tance between
yo u and thero ad users driving behind
yo u. Ad
justing the outside mir rors manually #
Adjust the outside mir rors to the cor rect posi‐
tion manually. #
Toengage an outside mir ror that has
been pushed out of position: pushthe out‐
side mir ror into position manually.
Ad justing the outside mir rors electrically Example image
* NO
TEDama getothe electric outside
mir rors If
yo ufo ld the electric outside mir rors in or
out manuall y,yo u may damage the outside
mir rors and they will not lock in place prop‐
er ly. If
th e outside mir rors are not folded in when
wa shing theve hicle in a car wash, thewa sher
brushes may fold them in forc ibly and dam‐
age them. #
The outside mir rors must only be folded
in and out elect rical ly. #
Foldthe outside mir rors in before wash‐
ing theve hicle in a car wash. #
Before driving off, switch on the po wer supp ly
or the ignition. #
Tofold in or out: brieflypress button 2. #
Toadjus t:use button 1or3 toselect the
outside mir rorto be adjus ted. #
Set the position of the mir rorgl ass bypress‐
ing button 4. #
Toengage an outside mir ror that has
been pushed out of position: press and
hold button 2.
Yo u will hear a click and the mir ror will audi‐
bly engage in position. The outside mir ror is
set in the cor rect position.
Heating the outside mir rors #
Vehicles without a rear window defros ter:
at low temp eratures, the mir ror heating
switches on automatically when the engine is
st ar ted. #
Vehicles with a rear window defros ter: at
low temp eratures, the mir ror heater switches
on automatically when the engine is star ted.
The mir ror heater can also be switched on
to ge ther with there ar wind owdefros ter using
th ere ar wind owdefros ter button. Dimming
the inside rearview mir ror Light and vision
91

#
Vehicles with windshield heating: press
th e button.
#
Close the center air vent (/ page 98) and
air vents forth e headroom (/ page 99) and
re ar compartment (/ page 99).
Misting on the outside of windo ws #
Switch on the windshield wiper (/ page 88).Switching air-recirculation mode on and off
#
Press the0089 button.
The interior air is recirculated.
The ai r-re circulation mode switches off au tomati‐
cally.
% When air-recirculation mode is switched off,
th
e windo wsmay fog up more quickl y.Switch
on ai r-re circulation mode only briefly.
Air-recirculation mode au tomatical lyswitches on
in thefo llowing cases:
R at high outside temp eratures
R while theve hicle is driving in a tunnel (only
ve hicles with 3-zone automatic climate con‐
trol)
R when the windshield wipers are switched on
(/ page 88)
The indicator lamp on the0089 button will not
light up in this case. Af ter a maximum of
30 minutes, outside air is automatically intro‐
duced again. Switching
the windshield heating on and off %
In
theeve nt of high outside temp eratures,
th e windshield heating may not turn on. #
Press the button forth e windshield heating.
If th e indicator lamp lights up, the windshield
heating is switched on.
% The windshield heating switches off automat‐
ically af ter a few minutes.
% If
th e battery voltage is too lo w,it may not be
possible toswitch the windshield heating on.
If th e battery voltage becomes too low while
th e windshield heating is in operation, the
windshield heating will swit choff automati‐
cally. Switching
there ar window defros ter on or off #
Press the006C button.
If th e indicator lamp lights up, there ar win‐
dow defros ter is switched on. Operating air
vents Ad
justing the front-compartment air vents &
WARNING ‑ Danger of bu rns or frostbite
due tobeing too close tothe air vents
Ve ry hot or very cold air can flow from the air
ve nts.
This could result in burns or frostbite in the
immediate vicinity of the air vents. #
Makesure that all vehicle occupants
alw ays maintain a suf ficient dis tance to
th e air vents. #
If necessa ry, direct the air flow to
ano ther area of theve hicle interior. #
Toopen or close: hold center2 of air
ve nt 1 and turn it tothe left or right as far
as it will go. #
Toset the air direction: hold center2 of
air vent 1 and swivel it up wards, down‐
wa rds, to the left or totheright. 98
Climate control

#
Toopen or close: turnthe adjustment
wheels 1onthe high-po wer air vents tothe
left or right as far as they will go.
% Cooled air will
flow out of the high-po wer air
ve nts. Heating will not be possible. Open the
high-po wer air vents only in summer du ring
cooling mode and keep them closed in win‐
te r. Ad
justing air vents in thero of air duct In
vehicles with rear-compartment air condition‐
ing, adjus table air vents ha vebeen integrated in
th ero of air duct. #
Adjusting the air flow: if necessar y,open or
close the air flaps in air vents 1. #
Adjusting the air distribution: turn airvents
1 tothere qu ired position. Ve
ntilation nozzles in there ar &
WARNING ‑ Danger of bu rns or frostbite
due tobeing too close tothe air vents
Ve ry hot or very cold air can flow from the air
ve nts.
This could result in burns or frostbite in the
immediate vicinity of the air vents. #
Makesure that all vehicle occupants
alw ays maintain a suf ficient dis tance to
th e air vents. #
If necessa ry, direct the air flow to
ano ther area of theve hicle interior. Depending on
theve hicle equipment, there will
be an air duct or a heater with additional air noz‐
zles in there ar foot we ll on the left-hand side 1.
No objects may be placed there. Passengers
must maintain a suf ficient dis tance due tothe
wa rm airflow and air intake. Au
xiliary heating Fu
nction of the auxiliary heating &
DANG ER Risk of fata l injury due topoi‐
sonous exhaust gases
If th eta ilpipe is bloc ked or suf ficient ventila‐
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi‐
cle. This is the case in enclosed spaces or if
th eve hicle getsst uck in sn ow,fo rex ample. #
Always switch thest ationary heater off
in enclosed spaces without an air
ex traction sy stems, e.g. in garage s. Climate
control 99

#
Keep theta ilpipe and the area around
th eve hicle free from snow when the
engine or thest ationary heater are run‐
ning. #
Open a window on the windward side of
th eve hicle toensure an adequate sup‐
ply of fresh air. &
WARNING Risk offire due tohot station‐
ary heater components
When thest ationary heater is swit ched on,
parts of theve hicle can become very hot, e.g.
th est ationary heater exhaust sy stem.
Flammable materials such as lea ves, grass or
twigs may ignite if they come into contact
wi th:
R hot parts of thest ationary heater exhaust
sy stem
R theex haust gas itself
There is a risk of fire. #
When thest ationary heater is swit ched
on, make sure that:
R Hot vehicle parts do not come into
contact with flammable materials.
R The exhaust gas can flow out of the
st ationary heater exhaust pipe
unhindered.
R The exhaust gas does not come into
contact with flammable materials. *
NO
TEDama getothe auxiliary heating If
th e auxiliary heating is not used for an
ex tended pe riod of time, it can be damaged. #
Switch the auxiliary heating on for
around ten minu tes at least once a
month. *
NO
TEDama getothe auxiliary heating
due toove rheating If
th e hot air flow is bloc ked, the auxiliary
heating can overheat and switch off. #
Do not block the hot air flow. %
Ve
hicles with modified fuel displa ys:if an
ex tern ally operated consumer is connec ted
via the cable forth e auxiliary heater, this is
not take n into conside ration on the "range
re maining" display of the on-board computer. In
this case, obser vethe fuel displa y.The fuel
display pr ovides the cur rent le vel.
If yo u are transpo rting hazardous materials, com‐
ply with there leva nt sa fety regulations. Alw ays
place objects at a suf ficient dis tance from the
outlet opening of the auxiliary heating.
Au xilia ryheating works independently of the
engine and complements the climate cont rol sys‐
te m in theve hicle. Auxilia ryheating heats the air
inside theve hicle tothe set temp erature. Hot-water auxiliary heater
Fu
nction of the hot- water auxiliary hea ter
The hot-water auxiliary heater complements your
ve hicle's climate contro l system, and has a
heater boos ter,auxiliary heating and auxiliary
ve ntilation function. In addition, the auxiliary
heating sy stem heats the engine coolant topro‐
te ct the engine and sa vefuel during thewa rming-
up phase. The auxiliary heating heats the air
inside theve hicle tothe set temp erature. It is not
dependent on the heat output of theru nning
engine. The auxilia ryheating is operated directly
using theve hicle's fuel. Forth is reason, the fuel
ta nk must ha vebeen filled abo vethere ser vefuel
le ve l so that the auxiliary heating can work. The
auxilia ryheating automatically adapts its operat‐
ing mode tothe outside temp erature and
we ather. It is therefore possible that the auxiliary
heating may switch from ventilation toheating
mode or from heating toventilation mode. When
th e engine is running, auxilia ryventilation is not
acti ve.Au xilia ryheating automatically switches
itself off af ter a maximum of 50 minutes. Yo u
cannot use the "auxiliary ventilation" ope rating
mode tocool the air inside theve hicle tobelow
th e outside temp erature. Auxilia ryheating helps
to heat up theve hicle while the engine is running
and at low outside temp eratures.
Operating the hot-wa ter auxiliary heater draws
po we r from theve hicle batter y.Therefore, drive a
re asonably long dis tance af ter heating or ventilat‐
ing theve hicle twice in succession at most.
Au xilia ryheating can be activated only at temp er‐
atures below 40 °F (4.5 °C).
Switching the hot- water auxiliary heating on
and off with the button
Re quirements:
R The fuel tank is filled abo vethere ser vefuel
le ve l. 100
Climate cont rol

Driving
Swit
ching on po wer supply or ignition with
the start/s top button &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R open doo rs,th ereby endangering other
persons or road users.
R get out of theve hicle and be hit by
oncoming traf fic.
R operate ve hicle equipment and become
trapped, forex ample.
In addition, children could also set theve hicle
in motion, forex ample, by:
R releasing the parking brake.
R shifting the automatic transmission out of
park position 005D.
R starting the engine #
Never lea vechildren and animals unat‐
te nded in theve hicle. #
When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle. #
Keep the SmartK eyout of there ach of
ch ildren. &
DANG ER Risk of fata l injuries due to
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases is hazardous tohealth
and can lead topoisoning. #
Never lea vethe engine running in an
enclosed space wi thout suf ficient venti‐
lation. &
WARNING Risk offire caused byflamma‐
ble material on theex haust sy stem
Flammable materials brought in byeither ani‐
mals or environmen tal influences may ignite if
th ey come into contact wi thhot parts of the
engine or exhaust sy stem. #
Therefore, check regularly that there are
no flammable materials in the engine
compartment or on theex haust sy stem. Re
quirements:
R The key is in de tection range of the antenna
(/ page 41) and theke y bat tery is not dis‐
ch arge d. #
Toswitch on the po wer suppl y:press but‐
to n1 once.
Yo u can now activate the windshield wipers,
fo rex ample.
The po wer supp lyis switched off again when one
of thefo llowing conditions is me t:
R the driver's door is open.
R you press button 1twice. #
Toswitch on the ignition: press button 1
twice.
The indicator lamps appear in the instrument
clus ter.
The ignition is switched off again when one of the
fo llowing conditions is me t:
R you do not start theve hicle within
15 minutes.
R you press button 1once. Driving and parking
103

St
arting the engine St
arting theve hicle with thest art/s top but‐
ton &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R open doo rs,th ereby endangering other
persons or road users.
R get out of theve hicle and be hit by
oncoming traf fic.
R operate ve hicle equipment and become
trapped, forex ample.
In addition, children could also set theve hicle
in motion, forex ample, by:
R releasing the parking brake.
R shifting the automatic transmission out of
park position 005D.
R starting the engine #
Never lea vechildren and animals unat‐
te nded in theve hicle. #
When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle. #
Keep the SmartK eyout of there ach of
ch ildren. Re
quirements:
R The key is in de tection range of the antenna
(/ page 41) and theke y bat tery is not dis‐
ch arge d. #
Vehicles with automatic transmission:
shift the transmission toposition 005Dor005C. #
Depress the brake pedal and press button 1
once. #
Ifth eve hicle does not star t:switch off unnec‐
essary consumers and press button 1once. #
Ifth eve hicle still does not start and the dis‐
play message Place the Key in the Marked
Space See Operator's Manual appears inthe
multifunction display: start theve hicle in
emergency operation mode.
St arting theve hicle in emer gency operation
mode &
WARNING Risk of accident and injury
due tochildren left unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R open doo rs,th ereby endangering other
persons or road users.
R get out of theve hicle and be hit by
oncoming traf fic.
R operate ve hicle equipment and become
trapped, forex ample.
In addition, children could also set theve hicle
in motion, forex ample, by:
R releasing the parking brake.
R shifting the automatic transmission out of
park position 005D.
R starting the engine #
Never lea vechildren and animals unat‐
te nded in theve hicle. #
When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle. #
Keep the SmartK eyout of there ach of
ch ildren. If
th eve hicle does not start and thePlace the
Key in the Marked Space See Operator's Manual
display message appears in the multifunction dis‐
pla y,yo u can start theve hicle in emer gency oper‐
ation mode. 104
Driving and pa rking