
Installing th
ewiper blades X
Positio nnew wiper blade 001Awith
recess 0024on lug 001E.
X Fold wiper blade 001Ain the direction of
arrow 0023ontot he wiper arm, until retaining
clips 0010engage in bracket 0021.
X Make sure that wiper blade 001Ais seated
correctly.
X Fold the wiper arm back ontot he
windshield.
Replacing the rear window wiper blade Removing
awiper blade X
Remove the SmartKey from the ignition
lock.
X Fold wiper arm 001Aaway from the rear
window until it engages.
X Position wiper blade 0010atar ight angle to
wiper arm 001A. X
Hold wiper arm 001Aand press wiper
blade 0010in the direction of the arrow until
it releases.
X Remove wiper blade 0010.
Installing awiper blade
X Place new wiper blade 0010ontow iper
arm 001A.
X Hold wiper arm 001Aand press wiper
blade 0010in the opposit edirection to the
arrow until it engages.
X Make sure that wiper blade 0010is seated
correctly.
X Position wiper blade 0010parallel to wiper
arm 001A.
X Fold wiper arm 001Aback ont othe rear
window. Windshield wipers
119Lights and windshield wipers Z

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please not ethat your vehicle may
not be equipped with all features
described. This also applies to safety-
related system sand functions.
i Read the information on qualified
specialist workshops: (Y page 25).Overview of climat
econtrol systems Important safet
ynotes
Observ ethe settings recommende donthe
following pages. The windows could
otherwise fog up.
To preven tthe windows from fogging up:
R switch off climate control only briefly
R switch on air-recirculation mode only
briefly
R switch on the cooling with air
dehumidification function
R switch on the defrost windshield function
briefly, if required
The automatic climate control regulates the
temperature and the humidity of the vehicle
interior and filters out undesirable
substances from the air.
Automatic climate control/dual-zone
automatic climate control is only operational
when the engine is running. Optimum
operation is only achieved with the side
windows and panorama roof with power tilt/
sliding panel closed.
The residual heat function can only be
activated or deactivated with the ignition
switched off (Y page 132).
i Ventilate the vehicle for abrief period
during warm weather, e.g. using the
convenience opening feature (Y page 84).This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly.
i The integrated filter filters out most
particles of dust and soot and completely
filters out pollen. With dual-zonea utomatic
climate control, gaseous pollutantsa nd
odors will also be reduced. Aclogged filter
reduces the amoun tofair 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 .Asitdepends on
environmental conditions, e.g. heavy air
pollution, the interval may be shorter than
stated in the Maintenance Booklet.
i It is possible that the dehumidification
function of the climate control system may
be activated automaticallyanh our after the
SmartKey has been removed. The vehicle
is then ventilated for 30 minutes. 122
Overview of climatec
ontrol systemsClimatecontrol

Control panel for climat
econtrol 001A
To set th etem peratur e(Ypage 128)
0010 To defros tthe windshield (Y page 130)
0023 To set the air distribution (Y page 129)
0021 To activate/deactivate air-recirculation mode (Y page 132)
001E To set the airflow (Y page 129)
0024 To switch cooling with air dehumidification on/off (Y page 126)
0007 To switch the rear window defroster on/off (Y page 130)Notes on using climate control
Automatic climate control The following contains notes and
recommendations on optimum use of the
automatic climate control.
R
Switch on the air-conditioning system by
turning control knob 001Eclockwise to the
desired position (except position 0).
R Set the temperature to 22 †.
R Recommendation for preventing
fogged up windowsw ith low outside
temperatures or rain: switch0002on for
the air distribution and switch 0018and
000B off if possible (Y page 129).
In air-recirculation mode, switch 0019off
(Y page 132). Set airflow control
001Etoas ettingb etween
3 and 6(Ypage 129).
R Recommendation for rapid cooling or
heating of the vehicle interior: briefly set
airflow control 001Etoas ettingb etween 3
and 6(Ypage 129).
R Recommendation for aconstant
vehicle interior temperature: set airflow
control 001Etoas ettingb etween 1and
3(Y page 129).
R Recommendation for air distribution in
the winter: set000B and
0002(Y page 129).
Recommendation for air distribution in
the summer: set0018 or0018 and
0002(Y page 129).
R Only use the "Windshield defrosting"
function briefly until the windshield is clear
again. Overview of climate control systems
123Climatecontrol

R
Only use air-recirculation mode briefly,e .g.
if there are unpleasant outside odors or
when in atunnel. The windows could
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R Vehiclesw ith COMAND: if you change the
settings of the climate control system, the
climate status displaya ppears for three
seconds at the bottom of the screen in the
COMAND display. See also the separate
COMAND operating instructions. You will
see the current settings of the various
climate control functions.
ECO start/stop function During automatic engine switch-off, the ECO
start/stop function only operates at a
reduced capacity. If you require the full
climate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (Y page 140). 124
Overview of climatec
ontrol systemsClimatecontrol

Control panel for dual-zone automatic climat
econtrol 001A
To set th etem perature, left (Y page 128)
0010 To set climate control to automatic (Y page 128)
0023 To defros tthe windshield (Y page 130)
0021 To increase the airflow (Y page 129)
001E To set the air distribution (Y page 129)
0024 Display
0007 To activate/deactivate air-recirculation mode (Y page 132)
0008 To switch climate control on/off (Y page 126)
0009 To set the temperature, right (Y page 128)
0016 To switch the residual heat function on/off (Y page 132)
001D To switch cooling with air dehumidification on/off (Y page 126)
0004 To reduce the airflow (Y page 129)
000B To switch the rear window defroster on/off (Y page 130)
001C To switch the ZONE function on/off (Y page 129)Notes on using dual-zone automatic
climate control
Automatic climate control The following contains instructions and
recommendations to enable you to get the
most out of your automatic climate control.
R Activate climate control using the 000Cand
0001 buttons. The indicator lamps in the
000C and0001 buttons light up.
R Set the temperature to 22 †. R
Only use the "Windshield defrosting"
function briefly until the windshield is clear
again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in atunnel. The windows could
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the
temperature settings on the driver's side Overview of climate control systems
125Climatecontrol

for the front-passenger side as well. The
indicator lamp in the
000Dbutton goes out.
R Use the residualh eatfunction if you want
to heat or ventilat ethe vehicl einterior
when the ignition is switched off. The
residual heat function can only be activated
or deactivated with the ignition switched
off.
R Vehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for three
seconds at the bottom of the screen in the
COMAND display. See also the separate
COMAND operatin ginstructions. You will
see the curren tsettings of the various
climate control functions.
ECO start/stop function Durin
gautomatic engin eswitch-off ,the ECO
start/stop function only operates at a
reduced capacity. If you require the full
climate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (Y page 140). Operating the climat
econtrol
systems Switching climat
econtrol on/off
General notes When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could fog up.
Therefore, switch off climate control only
briefly Automatic climat
econtrol X
Turn the SmartKey to position 2in the
ignition lock (Y page 137).
X To switch on: turn control001Eclockwise to
the desired position (except position 0)
(Y page 123).
X To switch off: turn control001Ecounter-
clockwise to position 0(Ypage 123).
Dual-zone automatic climat econtrol X
Turn the SmartKey to position 2in the
ignition lock (Y page 137).
X To switch on: press the000Cbutton.
The indicator lamp in the 000Cbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the 0007button.
The indicator lamp in the 0007button goes
out. The previously selected settings are
restored.
X To switch off: press the0007button.
The indicator lamp in the 0007button lights
up.
i Dual-zone automatic climate control:
switch on climate control primarily using
the 000C button. Activating/deactivating cooling with
air dehumidification
General notes If you deactivat
ethe "Cooling with air-
dehumidification "function ,the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
only deactivat ethe "Cooling with air-
dehumidification "function briefly.
The "Cooling with air dehumidification"
function is only available when the engin eis
running. The air inside the vehicle is cooled 126
Operating thec
limatecontrol systemsClimatecontrol

Problems with the "Cooling with air dehumidification" function
Problem Possible causes/consequences and
000B Solutions
The indicator lamp in
the
0001 button
flashes three times or
remains off. The
"Cooling with air
dehumidification"
function cannot be
switched on. Cooling with air dehumidification has been deactivated due to a
malfunction.
X
Visit aqualified specialist workshop. Setting climate control to automatic
General notes The automatic function is only available in
conjunction with dual-zonea utomatic climate
control.
In automatic mode, the set temperature is
maintained automatically at aconstant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
The automatic mode functions optimally
when the "Cooling with air dehumidification"
function is activated. If necessary, cooling
with air dehumidification can be deactivated.
If you deactivate the "Cooling with air-
dehumidification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
only deactivate the "Cooling with air-
dehumidification" function briefly.
Setting climate control to automatic X
Turn the SmartKey to position 2in the
ignition lock (Y page 137).
X Set the desired temperature.
X To activate: press the000Cbutton.
The indicator lamp in the 000Cbutton lights
up. Automatic air distribution and airflow
are activated. X
To switch to manualm ode:press the
000F or0017 button.
or
X Press the 0004or000E button.
The indicator lamp in the 000Cbutton goes
out. Automatic air distribution and airflow
are deactivated. Setting the temperature
Automatic climate control You can set the temperature for the entire
vehicle.
X
Turn the SmartKey to position 2in the
ignition lock (Y page 137).
X To increase/reduce: turn control001A
clockwise or counter-clockwise
(Y page 123). Only change the temperature
settingins mall increments. Star tat2 2†.
Dual-zon eautomatic climate control Different temperatures can be set for the
driver's and front-passenger sides.
X
Turn the SmartKe ytoposition 2in the
ignition lock (Y page 137).
X To increase/reduce: turnc ontrol 001Aor
0009 clockwise or counter-clockwise
(Y page 125) .Only change the temperature
setting in small increments. Star tat2 2†. 128
Operatin
gthe climate contro lsystemsClimate control

Defrosting th
ewindshield
You can use this function to defrost the
windshield or to defrost th einside of the
windshield and the side windows.
i Yous houl donlys elect the "Windshield
defrosting "fun ctio nuntil the windshield is
clear again.
X Turn the SmartKe ytoposition 2in the
ignition lock (Y page 137).
X To activate: press the0003button.
The indicator lamp in the 0003button lights
up.
The climate contro lsys tem switches to the
following functions:
R high airflow
R high temperature
R aird istribution to the windshield and
front side windows
R air-recirculation mode off
i The "Windshield defrosting" function
automatically set sthe blower output to the
optimum defrosting effect .Asaresult,the
airflow may increase or decrease
automatically after the button is pressed.
i You can adjust the blower output
manually while the "Windshield defrosting"
function is in operation:
R Automatic climate control: tur nairflow
control 001Eclockwise or counter-
clockwise (Y page 123).
R Dual-zon eautomatic climate control:
press the 0015or0005 button.
X To deactivate: press the0003button.
The indicator lamp in the 0003button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
X Dual-zon eautomatic climate control: press
the 000C button.
The indicator lamp in the 0003button goes
out. Airflow and air distribution are set to
automatic mode. or
X
Automatic climate control: turn
temperature control 001Aclockwise or
counter-clockwise (Y page 123).
Dual-zon eautomatic climate control: turn
temperature control 001Aor0009 clockwise or
counter-clockwise (Y page 125). Defrosting th
ewindows
Windows fogged up on th einside Automatic climat
econtrol
X Activat ethe 0001 "Cooling with air
dehumidification "function.
X If the windows continue to fog up, activate
the 0003 "Windshield defrosting" function.
i You should only select this setting until
the windshield is clear again.
Dual-zone automatic climat econtrol
X Activat ethe 0001 "Cooling with air
dehumidification "function.
X Activat eautomatic mode 000C.
X If the windows continue to fog up, activate
the 0003 "Windshield defrosting" function.
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Activat ethe windshield wipers.
X Set the air distribution to 0018or000B.
i You should only select this setting until
the windshield is clear again. Rear window defroster
General notes The rear window defroster has
ahigh current
draw. You should therefore switch it off as
soon as the rear window is clear. Otherwise,
the rear window defroster switches off
automatically after several minutes. 130
Operating thec
limatecontrol systemsClimatecontrol