Page 137 of 418

Switching the rear window wiper on/
off
Combination switch
:
èSwitch
2/5bWipes with washer fluid
3ISwitches on intermittent wiping
40 Switches off intermittent wiping
XTurn the SmartKey to position 1or 2in the
ignition lock (
Ypage 153).
XTurn switch :on the combination switch
to the corresponding position.
When the rear window wiper is switched on,
the icon appears in the instrument cluster.
Replacing the wiper blades
Important safety notes
GWARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
!Never open the hood/tailgate if a wiper
arm has been folded away from the wind-
shield/rear window.
Never fold a windshield wiper arm without a
wiper blade back onto the windshield/rear
window.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release the wiper arm without a wiper blade and it
falls onto the windshield/rear window, the
windshield/rear window may be damaged
by the force of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified
specialist workshop.
!To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
Changing the windshield wiper blades
Adjusting the wiper blades so that they
are vertical
On vehicles without KEYLESS-GO:
XTurn the SmartKey to position 1or 2in the
ignition lock (
Ypage 153).
XSet the windshield wiper to position °.
XWhen the wiper arms have reached the ver-
tical position, turn the SmartKey to position
0 and remove it from the ignition lock.
XFold the wiper arm away from the wind-
shield.
On vehicles with KEYLESS-GO:
XSwitch off the engine.
XRemove your foot from the brake pedal.
XSet the windshield wiper to the °posi-
tion.
XPress the Start/Stop button repeatedly
until the windshield wiper starts.
XWhen the wiper arms have reached the ver- tical position, press the Start/Stop button.
XFold the wiper arm away from the wind-
shield.
Windshield wipers135
Lights and windshield wipers
Z
Page 138 of 418
Removing the wiper blades
XHold on to the wiper arm with one hand.
With the other hand, turn wiper blade in
direction of arrow:away from the wiper
arm as far as it will go.
XSlide catch ;in the direction of arrow =
until it engages in the removal position with
a noticeable click.
XRemove the wiper blade in the direction of
arrow ?away from the wiper arm.
Installing the wiper blades
XInsert the new wiper blade into the wiper
arm in the direction of arrow :.
XSlide catch;in the direction of arrow =
until it engages in the locking position with a noticeable click.
XMake sure that the wiper blade is seated
correctly.
XFold the wiper arm back onto the wind-
shield.
XRemove protective film :of the service
indicator on the tip of the wiper blade.
If the color of the service indicator changes
from black to yellow, the wiper blades should
be replaced.
iThe duration of the color change varies
depending on the terms of use.
136Windshield wipers
Lights and windshield wipers
Page 139 of 418
Replacing the rear window wiper blades
Removing a wiper blade
XRemove the SmartKey from the ignition
lock.
XFold wiper arm?away from the rear win-
dow.
XPress both release clips ;.
XFold wiper blade:in the direction of
arrow =away from wiper arm ?.
XRemove wiper blade:in the direction of
arrow A.
Installing a wiper blade
XPosition new wiper blade :with recess B
on lug A.
XFold wiper blade :in the direction of
arrow =onto the wiper arm, until retaining
clips ;engage in bracket ?.
XMake sure that wiper blade :is seated
correctly.
XFold the wiper arm back onto the rear win-
dow.
Windshield wipers137
Lights and windshield wipers
Z
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Problems with the windshield wipers
ProblemPossible causes/consequences andMSolutions
The windshield wipers
are jammed.Leaves or snow, for example, may be obstructing the windshield
wiper movement. The wiper motor has been deactivated.
XFor safety reasons, you should remove the SmartKey from the
ignition lock.
or
XSwitch off the engine using the Start/Stop button and open the driver's door.
XRemove the cause of the obstruction.
XSwitch the windshield wipers back on.
The windshield wipers
fail completely.The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the combination switch.
XHave the windshield wipers checked at a qualified specialist
workshop.
The windshield washer
fluid from the spray
nozzles no longer hits
the center of the wind-
shield.The spray nozzles are misaligned.
XHave the spray nozzles adjusted at a qualified specialist work-
shop.
138Windshield wipers
Lights and windshield wipers
Page 141 of 418
Useful information............................140
Overview of climate control sys-
tems ................................................... 140
Operating the climate control sys-
tems ................................................... 142
Setting the air vents .........................149
139
Climate control
Page 142 of 418

Useful information
i
This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops (
Ypage 27).
Overview of climate control systems
General notes
Observe the settings recommended on the
following pages. The windows could other-
wise fog up.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only
briefly
Rswitch on the cooling with air dehumidifi-
cation function
Rswitch on the defrost windshield function
briefly, if required
Climate control regulates the temperature
and air humidity in the vehicle interior. The
interior filter cleans the air, thus improving
the interior climate.
If you start the engine using your smartphone,
the last selected climate control setting is
reactivated (
Ypage 156).
iVentilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (
Ypage 99). This
will speed up the cooling process and the
desired interior temperature will be
reached more quickly.
iThe integrated filter filters out most par-
ticles of dust and soot and completely fil- ters out pollen. It also reduces gaseous pol-
lutants and odors. A clogged filter reduces
the amount of air supplied to the vehicle
interior. For this reason, you should always
observe the interval for replacing the filter,
which is specified in the Maintenance
Booklet. As it depends on environmental
conditions, e.g. heavy air pollution, the
interval may be shorter than stated in the
Maintenance Booklet.
iIt is possible that the blower may be acti-
vated automatically 60 minutes after the
SmartKey has been removed depending on
various factors, e.g. the outside tempera-
ture. The vehicle is then ventilated for
30 minutes to dry the climate control sys-
tem.
140Overview of climate control systems
Climate control
Page 143 of 418

Control panel for dual-zone automatic climate control
:Sets the temperature, left (Ypage 145)
;Sets the air distribution (Ypage 145)
=Sets the airflow (Ypage 145)
Switches off climate control (
Ypage 142)
?Sets climate control to automatic (Ypage 144)
ADefrosts the windshield (Ypage 146)
BCalls up the Audio 20 or COMAND climate control menu (see the separate operating
instructions)
CSwitches the rear window defroster on or off (Ypage 146)
DActivates or deactivates synchronization (Ypage 145)
ESwitches air-recirculation mode manually on or off (Ypage 147)
FSwitches cooling with air dehumidification on/off (Ypage 142)
GSets the temperature, right (Ypage 145)
Optimum use of dual-zone automatic
climate control
Dual-zone automatic climate control
The following contains notes and recommen-
dations on optimum use of dual-zone climate
control.
RActivate climate control using the Ã
rocker switch. The indicator lamp above
the à rocker switch lights up. The "Cool-
ing with air dehumidification" function is
not activated automatically in automatic mode. If necessary, activate this function
(
Ypage 142).
RSet the temperature to 72 ‡ (22 †).
ROnly use the "Windshield defrosting" func-
tion briefly until the windshield is clear
again.
ROnly use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could oth-
erwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
Overview of climate control systems141
Climate control
Page 144 of 418

DYNAMIC SELECT switch
You can choosebetween various drive pro -
grams wit hth eDYNAMI CSELECT switch
(
Ypage 161).
If you hav eselecte ddrive program E:
Rth ecoolin goutput is reduce dwhen coolin g
Rwhen heating, th eelectrical heater booster
is deactivated and heat output is reduce d
as aresult
Rth erea rwindow defroster running time is
reduce d
If you hav eselecte ddrive program C,Sor S+ ,
th ecurren tclimat esetting sare maintained.
ECO start/stop function
Durin gautomatic engin eswitch-off ,th ecli-
mat econtro lsystem only operates at a
reduce dcapacity. If you require th efull cli-
mat econtro loutput ,you can switch of fth e
EC Ostart/sto pfunction by pressing th eEC O
butto n (
Ypage 159).
Operating th eclimat econtro lsys -
tems
Activating/deactivating climat econ-
trol
General notes
Whe nth eclimat econtro lis switched off, th e
air supply and air circulation are also
switched off. The windows could fo gup.
Therefore, switch of fclimat econtro lonly
briefly
Switc hon climat econtro lprimarily usin gth e
à rocker switch (
Ypage 144).
Activating or deactivating
XTurnth eSmartKey to position 2in th eigni-
tion loc k (
Ypage 153).
XTo switch on: press thet or!
rocker switch up or down .
The Audio 20 or COMAN Dclimat econtro l
men uopens .
XSwitchon th eclimat econtro lvia th eair-
conditionin gfunction bar ,see th eseparat e
operatin ginstructions.
or
XSe tth eairflow to level 1or higher usin gth e
H rocker switch .
XTo switch off :press th et or!
rocker switch up or down .
The Audio 20 or COMAN Dclimat econtro l
men uopens .
XSwitchof fth eclimat econtro lvia th eair-
conditionin gfunction bar ,see th eseparat e
operatin ginstructions.
or
XSe tth eairflow to level 0usin gth eH
rocker switch .
Switchingcoolin gwit hair dehumidi-
fication on/of f
General notes
If you deactivat eth e"Coolin gwit hair-dehu-
midification "function ,th eair insid eth evehi-
cl e will no tbe cooled .The air insid eth evehi-
cl e will also no tbe dehumidified. The win -
dows can fo gup more quickly. Therefore,
deactivat eth ecoolin gwit hair-dehumidifica-
tion function only briefly.
The "Coolin gwit hair dehumidification "func-
tion is only available when th eengin eis run -
ning .The air insid eth evehicle is cooled and
dehumidified accordin gto th etemperature
selected.
Condensation may dri pfrom th eunderside of
th evehicle when it is in coolin gmode. Thi sis
normal and no t asignthat there is amalfunc -
tion .
142Operating the climate control systems
Climate control