climate control MERCEDES-BENZ E-Class CABRIOLET 2017 A207 User Guide

Optimum use of automatic climate
control
Climate control system
Below, you can find a number of notes and rec-
ommendations to help you use climate control
optimally.
The 3-zone automatic climate control is only
available on vehicles for Canada.
RActivate climate control using the Ãand
¿ buttons. The indicator lamps above the
à and¿ buttons light up.
RVehicles with 3-zone automatic climate con-
trol: in automatic mode, you can also set the
climate mode (FOCUS, MEDIUM or DIFFUSE).
The MEDIUM level is recommended.
RSet the temperature to 72 ‡ (22 †).
ROnly use the "Windshield defrosting" function
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 otherwise fog up, since no fresh air is drawn into the vehicle in
air-recirculation mode.
RUse the ZONE function to adopt the temper-
ature settings on the driver's side for the
front-passenger side and the rear compart-
ment as well. The indicator lamp above the
á button goes out.
RVehicles with 3-zone automatic climate con-
trol: use the residual heat function if you want
to heat or ventilate the vehicle interior when
the ignition is switched off. The residual heat
function can only be activated or deactivated with the ignition switched off.
RIf you change the settings of the climate con-
trol system, the climate status display
appears for approximately three seconds at
the bottom of the screen in the multimedia
system display. You will see the current set-
tings of the various climate control functions.
ECO start/stop function
During automatic engine switch-off, the climate
control system only operates at a reduced capa-
city. If you require the full climate control output,
you can switch off the ECO start/stop function
by pressing the ECO button (
Ypage 132).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
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
iActivate climate control primarily using the
à button (Ypage 121).
Activating/deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 128).
XTo activate: press theÃbutton.
The indicator lamp above the Ãbutton
lights up. Airflow and air distribution are set to
automatic mode.
XTo deactivate: press the^button.
The indicator lamp above the ^button
lights up.
120Operating the climate control systems
Climate control

Switching cooling with air dehumidification on/off
General notes
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, deactivate the cooling with air-dehumidification function only briefly.
The "Cooling with air dehumidification" function is only available when the engine is running. The air
inside the vehicle is cooled and dehumidified according to the temperature selected.
Condensation may drip from the underside of the vehicle when it is in cooling mode. This is normal
and not a sign that there is a malfunction.
Switching on/off
XTo activate: press the¿button.
The indicator lamp above the ¿button lights up.
XTo deactivate: press the¿button.
The indicator lamp above the ¿button goes out. The "Cooling with air dehumidification"
function has a delayed switch-off feature.
Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences and MSolutions
The indicator lamp over
the¿ button flashes
three times or remains
off. The "Cooling with air
dehumidification" func-
tion cannot be switched
on.Cooling with air dehumidification has been deactivated due to a mal-
function.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
In automatic mode, the set temperature is main-
tained automatically at a constant level. The
system automatically regulates the temperature
of the dispensed air, the airflow and the air dis-
tribution.
The "Cooling with air dehumidification" function
is activated automatically in automatic mode.
Automatic control
XTurn the SmartKey to position 2in the ignition
lock (Ypage 128).
XSet the desired temperature.
XTo activate: press theÃbutton.
The indicator lamp above the Ãbutton
lights up. Automatic air distribution and air-
flow are activated.
i3-zone automatic climate control: when
automatic mode is activated, you can set the
climate mode (
Ypage 122).
XTo switch to manual mode:
Dual-zone automatic climate control: press
air distribution adjustment switch F
(
Ypage 118).
Operating the climate control systems121
Climate control

3-zone automatic climate control: press air
distribution adjustment switchI
(
Ypage 119).
The indicator lamp above the Ãbutton
goes out.
or
XDual-zone automatic climate control: press
airflow adjustment switch G(Ypage 118).
3-zone automatic climate control: press air-
flow adjustment switch H(
Ypage 119).
The indicator lamp above the Ãbutton
goes out.
Adjusting the climate mode settings
The "Set climate mode" function is only available
with 3-zone automatic climate control.
You can select the following climate mode set-
tings in automatic mode:
FOCUS high airflow, slightly cooler setting
MEDIUM medium airflow, standard setting
DIFFUSE low airflow, slightly warmer and draft- free setting
XTurn the SmartKey to position 2in the ignition
lock (Ypage 128).
XPress the Ãbutton.
XPress climate mode selection button Gup or
down and select the desired level
(
Ypage 119).
Setting the temperature
Dual-zone automatic climate control
Different temperatures can be set for the driv-
er's and front-passenger sides.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 128).
XTo increase or reduce the temperature in
the front compartment: press temperature
adjustment switch EorH up or down
(
Ypage 118).
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
3-zone automatic climate control
You can select different temperature settings
for the driver's and front-passenger sides as well
as for the rear compartment.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 128).
XTo increase or reduce the temperature in
the front compartment: press temperature
adjustment switch ForJ up or down
(
Ypage 119).
Only change the temperature setting in small increments. Start at 72 ‡ (22 †).
XTo increase or reduce the temperature in
the rear compartment using the front con-
trol panel: press theábutton.
The indicator lamp above the ábutton
goes out.
XPress temperature adjustment switch For
J up or down (Ypage 119).
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
XTo increase or reduce the temperature in
the rear compartment using the rear con-
trol panel: press therors button on
the rear control panel.
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
Setting the air distribution
Air distribution settings
P Directs air through the center and side air
vents
O Directs air through the footwell air vents
S Directs the airflow through the center
and side air vents as well as the footwell
air vents (Cabriolet only)
¯ Directs air through the defroster vents
a Directs air through the defroster and
footwell vents
iRegardless of the air distribution setting,
airflow is always directed through the side air
vents. The side air vents can only be closed
when the controls on the side air vents are
turned downwards.
122Operating the climate control systems
Climate control

Setting the air distribution
XTurn the SmartKey to position2in the ignition
lock (Ypage 128).
XDual-zone automatic climate control: press
air distribution adjustment switch Fup or
down, until the desired symbol appears in the
display (
Ypage 118).
X3-zone automatic climate control: press air
distribution adjustment switch Iup or
down, until the desired symbol appears in the
display (
Ypage 119).
Setting the airflow
Dual-zone automatic climate control
XTurn the SmartKey to position 2in the ignition
lock (Ypage 128).
XTo increase or reduce: press airflow adjust-
ment switch Gup or down (Ypage 118).
3-zone automatic climate control
XTurn the SmartKey to position 2in the ignition
lock (Ypage 128).
XTo increase or reduce: press airflow adjust-
ment switch Hup or down (Ypage 119).
If the battery is not sufficiently charged, blower output may be reduced. As soon as the battery
is sufficiently charged, full blower output will be
available.
Switching the ZONE function on/off
XTo activate: press theábutton.
The indicator lamp above the ábutton
lights up.
Dual-zone automatic climate control: the tem-
perature setting for the driver's side is not
adopted for the front-passenger side.
3-zone automatic climate control: the tem-
perature setting for the driver's side is not
adopted for the front-passenger side and the
rear compartment.
XTo deactivate: press theábutton.
The indicator lamp above the ábutton
goes out.
Dual-zone automatic climate control: the tem-
perature setting for the driver's side is adop-
ted for the front-passenger side. 3-zone automatic climate control: the tem-
perature setting for the driver's side is adop-
ted for the front-passenger side and the rear
compartment.
Defrosting the windshield
You can use this function to defrost the wind-
shield or to clear a fogged up windshield or side
windows on the inside.
Switch off the "Windshield defrosting" function
as soon as the windshield is clear again.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 128).
XTo activate: press the¬button.
The indicator lamp above the ¬button
lights up.
The climate control system switches to the
following functions:
Rhigh airflow
Rhigh temperature
Rair distribution to the windshield and front
side windows
Rair-recirculation mode off
If the battery is not sufficiently charged, blower output may be reduced. Once the battery is suf-
ficiently charged again, full blower output will be
available again.
XTo deactivate: press the¬button.
The indicator lamp above the ¬button
goes out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
MAX COOL maximum cooling
The MAX COOL function is only available in vehi-
cles for the USA.
MAX COOL is only operational when the engine
is running.
XTo activate: press theÙbutton.
The indicator lamp in the Ùbutton lights
up.
XTo deactivate: press theÙbutton.
The indicator lamp in the Ùbutton goes
out. The previously selected settings are
restored.
Operating the climate control systems123
Climate control

When you activate MAX COOL, climate control
switches to the following functions:
Rmaximum cooling
Rmaximum airflow
Rair-recirculation mode on
Defrosting the windows
Windows fogged up on the inside
XActivate the ¿cooling with air dehumidi-
fication function.
XActivate automatic mode Ã.
XAdjust the side air vents so that the warmed
air is directed to the side windows.
XIf the windows continue to fog up, activate the
"windshield defrosting" function ¬.
iYou should only select this setting until the
windshield is clear again.
Windows fogged up on the outside
XClimate control: press air distribution adjust-
ment switch Fup or down (Ypage 118), until
the P orO symbol appears in the dis-
play.
X3-zone automatic climate control: press air
distribution adjustment switch Iup or down
(
Ypage 119), until the PorO symbol
appears in the display.
XAdjust the side air vents so that no air is
directed to the side windows.
Rear window defroster
General notes
The rear window defroster has a high 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.
If the battery voltage is too low, the rear window
defroster may switch off.
Activating or deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 128).
XPress the ¤button.
The indicator lamp above the ¤button
lights up or goes out.
124Operating the climate control systems
Climate control

Problems with the rear window defroster
ProblemPossible causes/consequences andMSolutions
The rear window
defroster has deactiva-
ted prematurely or can-
not be activated.The battery has not been sufficiently charged.
XSwitch off any consumers that are not required, e.g. reading lamps,
interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window defroster
can be activated again.
Switching air-recirculation mode
on/off
General notes
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle from
outside. The air already inside the vehicle will
then be recirculated.
If you switch on air-recirculation mode, the win-
dows can fog up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows from fog-
ging up.
Activating or deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 128).
XTo activate: press thegbutton.
The indicator lamp above the gbutton
lights up.
XTo deactivate: press thegbutton.
The indicator lamp above the gbutton
goes out.
iAir-recirculation mode deactivates auto-
matically:
Rafter approximately five minutes at outside
temperatures below approximately 41 ‡
(5 †)
Rafter approximately five minutes if cooling
with air dehumidification is deactivated
Rafter approximately 30 minutes at outside
temperatures above approximately 41 ‡
(5 †) if the "Cooling with air dehumidifica-
tion" function is activated
Switching the residual heat on or off
General notes
It is possible to make use of the residual heat of
the engine to continue heating the vehicle for
approximately 30 minutes after the engine has
been switched off. The heating time depends on
the set interior temperature.
The "residual heat" function only functions opti-
mally with the side windows closed.
The "residual heat" function only functions opti-
mally with the soft top closed.
Activating/deactivating
XTurn the SmartKey to position 0in the ignition
lock or remove it (Ypage 128).
XTo activate: press theÌbutton.
The indicator lamp above the Ìbutton
lights up.
iIf the residual heat function is activated, the
windows may fog up on the inside.
iThe blower will run at a low speed regardless
of the airflow setting.
iIf you activate the residual heat function at
high temperatures, only the ventilation will be
activated. The blower runs at medium speed.
XTo deactivate: press theÌbutton.
The indicator lamp above the Ìbutton
goes out.
Residual heat is deactivated automatically:
Rafter approximately 30 minutes
Rwhen the ignition is switched on
Rif the battery voltage drops
Operating the climate control systems125
Climate control

Air vents
Important safety notes
GWARNIN G
Ver yhot or ver ycold air can flo wfrom th eair
vents .This could result in burn sor frostbit ein
th eimmediat evicinity of th eair vents .There
is aris kof injury.
Mak esur ethat all vehicl eoccupant salways
maintai n asufficien tdistanc eto th eair out -
lets. If necessary, redirect th eairflow to
another area of th evehicl einterior.
In order to ensur eth edirec tflo wof fresh air
throug hth eair vents int oth evehicl einterior,
pleas eobserv eth efollowin gnotes:
Rkeep th eair inlet between th ewindshield and
th ehoo dfree of blockages, suc has ice ,snow
or leaves.
Rnever cover th eair vents or air intake grilles in
th evehicl einterior.
Setting the air vents
Exampl e
:
Defroster ven t
;Sideair ven t
=Thumbwheel for side air ven t
XTo open or close:turnthumbwheel =up or
down .
Setting the glove box air vent
!
Close th eair ven twhen heating th evehicle.
At high outside temperatures ,open th eair
ven tand activat eth e"coolin gwit hair dehu- midification
"function .Otherwise ,tempera-
ture-sensitive items store din th eglov ebox
could be damaged.
:Air ven tcontrol
;Air ven t
When th eclimat econtrol system is activated,
th eglov ebox can be ventilated, for instance to
cool it scontents .The level of airflow depend son
th eairflow and air distribution settings.
XTo open or close: turncontrol :to th e
clockwise or counter-clockwise .
Setting the blower outputofthe AIR-
SCARF vents
GWARNIN G
When AIRSCARF is switched on ,ver yhot air
can flo wfrom th events in th ehead restraints .
This could result in burn sin th eimmediat e
vicinity of th eair vents .There is aris kof injury.
Reduc eth eheater output before it become s
to ohot .
You can adjust th eblowe routput of AIRSCARF
vents :usin gth eAIRSCARF butto n
(
Ypage 102).
126Air vents
Climate control

Favorites
Calling up and exiting favorites
XTo call up :press th eò buttonon th econ-
troller .
XSelect afavorite ,e.g. Vehicl e.
The favorite sare displayed.
XTo exit :press th eò buttonagain .
Adding favorites
Adding a predefined favorite
:Adds ane wfavorite
;Renames aselected favorite
=Moves aselected favorite
?Deletes aselected favorite
XPress th eò button.
XSlide6thecontroller.
The men ubar is shown.
XSelec tReassign.
The categories are displayed.
XSelec t acategory.
The favorite sare displayed.
XSelec t afavorite .
XAdd a favorite at th edesired position .
If afavorite has already been added at this
position ,it will be overwritten.
Adding your own favorite
XSelec tVehicl eQClimate Contro l.
XPress and hold theò buttonuntil th e
favorite sare displayed.
XAd d a favorite at th edesired position .
If afavorite has already been added at this
position ,it will be overwritten.
Navigation mode
Important safety notes
GWARNIN G
If you operate information systems and com-
munication equipmen tintegrate din th evehi-
cle while driving ,you will be distracte dfrom
traffic conditions. You could also lose control
of th evehicle. Ther eis aris kof an accident.
Only operate th eequipmen twhen th etraffic
situation permits. If you are no tsure that this
is possible ,park th evehicl epayin gattention
to traffic condition sand operate th eequip-
men twhen th evehicl eis stationary.
You must observ eth elegal requirements for th e
country in whic hyou are currentl ydriving when
operating th enavigation system.
General notes
Amon gother things, correct functioning of th e
navigation system depend son GPS reception .In
certai nsituations, GPS reception may be
impaired ,there may be interferenc eor there
may be no reception at all, e.g. in tunnels or
parking garages.
Audio 20 is equipped wit hMARGIN
®MA PPILOT
(see th emanufacturer' soperating instructions).
The Garmin
®MA PPILOT operating instruction s
are store don th eSD memory car das aPD Ffile .
The SD car dbox contains aquic kguide .
The followin gdescription sapply to navigation
wit hCOMAND .Further information can be
foun din th eDigital Operator's Manual.
Selecting a route type and route options
Multimedia system:
XSelec tNav iQNavigation.
The map shows th evehicle's curren tposition .
XSlide6thecontroller.
XSelec tOption sQRout eSettings.
Notes for rout etypes:
REco Route
RDynami cTraffi cRoute(only available in
th eUS Aand Canada)
Traffic report son th erout efor th erout eguid-
anc eare taken int oaccount.
236Operating system
Multimedia system

from the data shown here. You can find the
data applicable to your vehicle on the vehicle
identification plate.
Vehicle identification number (VIN)
XSlide the right-hand front seat to its rearmost
position.
XSlightly raise front floor covering=and fold
floor covering flap :upwards.
You will see VIN ;.
Engine number
:Emission control information plate, includ-
ing the certification of both federal and Cali-
fornian emissions standards
;Engine number (stamped into the crank-
case)
=VIN (on the lower edge of the windshield)
Service products and filling capaci-
ties
Important safety notes
GWARNING
Service products may be poisonous and haz-
ardous to health. There is a risk of injury.
Comply with instructions on the use, storage
and disposal of service products on the labels
of the respective original containers. Always
store service products sealed in their original
containers. Always keep service products out
of the reach of children.
HEnvironmental note
Dispose of service products in an environ-
mentally responsible manner.
Service products include the following:
RFuels
RLubricants (e.g. engine oil, transmission oil)
RCoolant
RBrake fluid
RWindshield washer fluid
RClimate control system refrigerant
Components and service products must be
matched. Only use products recommended by
Mercedes-Benz. Damage which is caused by the
use of products which have not been recom-
mended is not covered by the Mercedes-Benz
warranty or goodwill gestures. They are listed in
this Mercedes-Benz Operator's Manual in the
appropriate section.
Information on tested and approved products
can be obtained at an authorized Mercedes-
Benz Center or on the Internet at
http://bevo.mercedes-benz.com.
You can recognize service products approved by
Mercedes-Benz by the following inscription on
the containers:
RMB-Freigabe (e.g. MB-Freigabe 229.51)
RMB-Approval (e.g. MB-Approval 229.51)
Other designations or recommendations indi-
cate a level of quality or a specification in
accordance with an MB Sheet Number (e.g. MB 229.5). They have not necessarily been
approved by Mercedes-Benz.
312Service products and filling capacities
Technical data

When handling washer fluid, observe the impor-
tant safety notes on service products
(
Ypage 312).
At temperatures above freezing:
XFill the washer fluid reservoir with a mixture of
water and windshield washer fluid, e.g. MB
SummerFit.
Add 1 part MB SummerFit to 100 parts water.
At temperatures below freezing:
XFill the washer fluid reservoir with a mixture of
water and washer fluid, e.g. MB WinterFit.
For the correct mixing ratio refer to the infor-
mation on the antifreeze reservoir.
iAdd windshield washer fluid, e.g. MB Sum-
merFit or MB WinterFit, to the washer fluid all
year round.
Climate control system refrigerant
Important safety notes
The climate control system of your vehicle is fil-
led with refrigerant R‑ 134a.
The instruction label regarding the refrigerant
type used can be found on the radiator cross
member.
!Only the refrigerant R‑134a and the PAG oil
approved by Mercedes-Benz may be used.
The approved PAG oil may not be mixed with
any other PAG oil that is not approved for
R-134a refrigerant. Otherwise, the climate
control system may be damaged.
Service work, such as topping up refrigerant or
replacing components, may only be carried out
by a qualified specialist workshop. All applicable
regulations must be adhered to, SAE standard
J639 included.
Always have work on the climate control system
carried out at a qualified specialist workshop.
Refrigerant instruction label
Example: refrigerant instruction label
:
Warning symbol
;Refrigerant filling capacity
=Applicable standards
?PAG oil part number
AType of refrigerant
Warning symbol :advises you about:
Rpossible dangers
Rhaving service work carried out at a qualified
specialist workshop
Filling capacities
All modelsCapacity
Refrigerant20.8 ± 0.4 oz
(590 ± 10 g)
PAG oil4.2 ± 0.4 oz
(120 ± 10 g)
Vehicle data
General notes
Please note that for the specified vehicle data:
Rthe heights specified may vary as a result of:
-tires
-load
-condition of the suspension
-optional equipment
Roptional equipment reduces the maximum
payload.
Vehicle data317
Technical data
Z