2017 MERCEDES-BENZ CLS-Class Owner's Manual

Problems with the windshield wipers
ProblemPossible causes/consequences andMSolutions
The windshield wipers
are jammed.Leaves or snow, for example, are obstructing windshield wiper move-
ment. The wiper motor has been deactivated.
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, on vehicles with KEYLESS‑GO:
XOpen the driver's door.
The vehicle electronics now have status 0. This is the same as the
SmartKey having been removed.
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 work-
shop.
The windshield washer
fluid from the spray noz-
zles no longer hits the
center of the windshield.The spray nozzles are misaligned.
XHave the spray nozzles adjusted at a qualified specialist workshop.
Windshield wipers111
Lights and windshield wipers
Z

Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise 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 dehumidifica-
tion function
Rswitch on the defrost windshield function
briefly, if required
Climate control regulates the temperature and
the humidity in the vehicle interior and filters
undesirable substances out of the air.
Climate control can only be operated when the
engine is running. Optimum operation is only
achieved with the side windows and roof closed.
The residual heat function can only be activated
or deactivated with the ignition switched off
(
Ypage 120).
iVentilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (
Ypage 88). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
iThe integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
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 Book-
let.
iIt is possible that the residual heat function
may be activated automatically an hour after
the SmartKey is removed. The vehicle is then
ventilated for 30 minutes to dry the automatic
climate control.
Control panel for dual-zone automatic climate control
Canada only
:Sets the temperature, left (Ypage 117)
;Defrosts the windshield (Ypage 118)
=Switches the ZONE function on/off (Ypage 118)
?Switches cooling with air dehumidification on/off (Ypage 116)
ASwitches the rear window defroster on/off (Ypage 119)
BSets the temperature, right (Ypage 117)
112Overview of climate control systems
Climate control

CSwitches air-recirculation mode on/off (Ypage 120)
DSetting the air distribution (Ypage 118)
EIncreases the airflow (Ypage 118)
FReduces the airflow (Ypage 118)
GActivates/deactivates climate control (Ypage 116)
HSets climate control to automatic (Ypage 117)
USA only
:Sets the temperature, left (Ypage 117)
;Defrosts the windshield (Ypage 118)
=Switches the maximum cooling MAX COOL on or off (Ypage 119)
?Switches cooling with air dehumidification on/off (Ypage 116)
ASwitches the rear window defroster on/off (Ypage 119)
BSets the temperature, right (Ypage 117)
CSwitches air-recirculation mode on/off (Ypage 120)
DSets the air distribution (Ypage 118)
EIncreases the airflow (Ypage 118)
FReduces the airflow (Ypage 118)
GActivates/deactivates climate control (Ypage 116)
HSets climate control to automatic (Ypage 117)
Overview of climate control systems113
Climate control

Control panel for 3-zone automatic climate control
Canada only
Front control panel
:Sets the temperature, left (Ypage 117)
;Defrosts the windshield (Ypage 118)
=Switches the residual heat on or off (Ypage 120)
?Switches cooling with air dehumidification on/off (Ypage 116)
ASwitches the rear window defroster on/off (Ypage 119)
BSets the temperature, right (Ypage 117)
CSwitches the ZONE function on/off (Ypage 118)
DActivates/deactivates climate control (Ypage 116)
ESets the air distribution (Ypage 118)
FIncreases the airflow (Ypage 118)
GReduces the airflow (Ypage 118)
HAdjusts the climate mode settings (Ypage 117)
ISwitches air-recirculation mode on/off (Ypage 120)
JSets climate control to automatic (Ypage 117)
Rear control panel
KIncreases the airflow (Ypage 118)
LReduces the airflow (Ypage 118)
MDisplay
NReduces the temperature (Ypage 117)
OIncreases the temperature (Ypage 117)
114Overview of climate control systems
Climate control

USA only
Front control panel
:Sets the temperature, left (Ypage 117)
;Defrosts the windshield (Ypage 118)
=Switches the maximum cooling MAX COOL on or off (Ypage 119)
?Switches cooling with air dehumidification on/off (Ypage 116)
ASwitches the rear window defroster on/off (Ypage 119)
BSets the temperature, right (Ypage 117)
CSwitches the ZONE function on/off (Ypage 118)
DActivates/deactivates climate control (Ypage 116)
ESets the air distribution (Ypage 118)
FIncreases the airflow (Ypage 118)
GReduces the airflow (Ypage 118)
HAdjusts the climate mode settings (Ypage 117)
ISwitches air-recirculation mode on/off (Ypage 120)
JSets climate control to automatic (Ypage 117)
Rear control panel
KIncreases the airflow (Ypage 118)
LReduces the airflow (Ypage 118)
MDisplay
NReduces the temperature (Ypage 117)
OIncreases the temperature (Ypage 117)
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.
RActivate climate control using the Ãand
¿ buttons. The indicator lamps above the
à and¿ buttons light up.
RIn automatic mode, you can also use the ñ
button to set the climate mode (FOCUS,
MEDIUM or DIFFUSE). The MEDIUM level is
recommended.
RSet the temperature to 72 ‡ (22 †).
Overview of climate control systems115
Climate control

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 127).
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 117).
Activating/deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 123).
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to auto-
matic mode.
XTo deactivate: press the^button.
The indicator lamp in the ^button lights
up.
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.
Activating/deactivating
XTo activate: press the¿button.
The indicator lamp in the ¿button lights up.
XTo deactivate: press the¿button.
The indicator lamp in the ¿button goes out. The "Cooling with air dehumidification" function
has a delayed switch-off feature.
116Operating the climate control systems
Climate control

Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andMSolutions
The indicator lamp in 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 123).
XSet the desired temperature.
XTo switch on: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow are
activated.
3-zone automatic climate control: when auto-
matic mode is activated, you can set the climate mode (
Ypage 117).
XTo switch to manual mode: press the_
button.
or
XPress the IorK button.
The indicator lamp in 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 123).
XPress the Ãbutton.
XPress the ñbutton repeatedly until the
desired climate mode appears in the display.
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 123).
XTo increase or reduce: turn temperature
control :orB counter-clockwise or clock-
wise (
Ypage 112).
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 123).
XTo increase or reduce the temperature in
the front compartment: turn temperature
control :orB counter-clockwise or clock-
wise (
Ypage 114).
Operating the climate control systems117
Climate control

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 in the ábutton goes
out.
The temperature setting for the driver's side
is adopted for the rear compartment and the
front-passenger side.
XTurn temperature control :counter-clock-
wise or clockwise (Ypage 114).
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 air through the center, side and
footwell vents
¯ Directs air through the defroster vents
b Directs the airflow through the defroster,
center and side air vents (Canada only)
a Directs air through the defroster and
footwell vents
_ Directs the airflow through the defroster
vents, the center and side air vents as
well as the footwell air vents (Canada
only)
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.
Setting the air distribution
XTurn the SmartKey to position 2in the ignition
lock (Ypage 123).
XPress the _button repeatedly until the
desired symbol appears in the display.
Setting the airflow
XTurn the SmartKey to position 2in the ignition
lock (Ypage 123).
XTo increase: press theKbutton.
XTo reduce: press theIbutton.
iYou can use 3-zone automatic climate con-
trol to set the airflow in the rear compartment
separately.
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 in 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 in 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.
118Operating the climate control systems
Climate control