2016 MERCEDES-BENZ SLK-Class air condition

heat function can only be activated or deac-tivated with the ignition switched off.
ECO start/stop function
During automatic engine switch-off, the cli-
mate control only operates at a reduced capa-
city. If you require full climate control capa-
city, the ECO start/stop function can be
deactivated by pressing the ECO button
(
Ypage 145).
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 129).
Air-conditioning system
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 139).
XTo switch on: turn airflow control C
clockwise to the desired position (except
position 0) (
Ypage 123).
XTo switch off: turn airflow control C
counter-clockwise to position 0
(
Ypage 123).
Dual-zone automatic climate control
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 139).
XTo switch on: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
XPress the ^button.
The indicator lamp in the ^button goes
out. The previously selected settings are
restored.
XTo switch off: press the^button.
The indicator lamp in the ^button lights
up.
Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi- cle will not be cooled. The air inside the vehi-
cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore,
deactivate the cooling with air-dehumidifica-
tion function only briefly.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. 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 malfunc-
tion.
Operating the climate control systems127
Climate control

Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andMSolutions
The indicator lamp in
the¿ orÁ but-
ton flashes three times
or remains off. The
"Cooling with air dehu-
midification" function
cannot be switched on.Cooling with air dehumidification has been deactivated due to a
malfunction.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
Automatic mode is only available with dual-
zone automatic air conditioning.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature 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-dehu-
midification" function, the air inside the vehi-
cle will not be cooled. The air inside the vehi-
cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore,
deactivate the cooling with air-dehumidifica-
tion function only briefly.
Automatic control
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 139).
XSet the desired temperature.
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow
are activated.
XTo switch to manual mode: press the
_ button.
or
XPress the IorK button.
The indicator lamp in the Ãbutton goes
out.
Setting the temperature
Air-conditioning system
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 139).
XTo increase or reduce: turn control:
clockwise or counter-clockwise
(
Ypage 123).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
iIf you turn control :counter-clockwise
to the lowest temperature setting, air-recir-
culation mode may activate automatically,
depending on the outside temperature.
Dual-zone automatic climate control
Different temperatures can be set for the
driver's and front-passenger sides.
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 139).
XTo increase or decrease: turn control:
or B clockwise or counter-clockwise
(
Ypage 125).
Operating the climate control systems129
Climate control

Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
iIf you turn controls:and Bcounter-
clockwise to the lowest temperature set-
ting, air-recirculation mode may activate
automatically, depending on the outside
temperature.
Setting the air distribution
Air-conditioning system
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 139).
XPress one or more of the P,O,¯
buttons.
The corresponding indicator lamp lights up
briefly.
The following air distribution settings can be
selected:
¯ Directs air through the defroster vents
O Directs air through the footwell air
vents
P Directs air through the center and side
air vents
iYou can also activate several air distribu-
tion settings simultaneously. To do this,
press multiple air distribution buttons. The
air is then directed through various vents.
Dual-zone automatic climate control
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 139).
XPress the _button repeatedly until the
desired symbol appears in the display.
The following air distribution settings can be
selected:
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. You can only close the side air
vents, by fully closing the adjuster on the
side air vents (
Ypage 135).
Setting the airflow
Air-conditioning system
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 139).
XTo increase or reduce: turn controlC
clockwise or counter-clockwise
(
Ypage 123).
Dual-zone automatic climate control
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 139).
XTo increase or reduce: press theKor
I button.
Switching the ZONE function on/off
This function is only available with dual-zone
automatic climate control on vehicles for
Canada.
XTo switch on: press theábutton.
The indicator lamp in the ábutton lights
up. The temperature setting for the driver's
130Operating the climate control systems
Climate control

side is not adopted for the front-passenger
side.
XTo switch off:press theábutton.
The indicator lamp in the ábutton goes
out. The temperature setting for the driv-
er's side is adopted for the front-passenger
side.
Defrosting the windshield
General notes
You can use this function to defrost the wind-
shield or to defrost the inside of the wind-
shield and the side windows.
Switch off the "Windshield defrosting" func-
tion as soon as the windshield is clear again.
Switching the "windshield defrosting"
function on or off
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 139).
XTo switch on: press the¬button.
The indicator lamp in 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
XTo switch off: press the¬button.
The indicator lamp in the ¬button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
XDual-zone automatic climate control: press
the à button.
The indicator lamp in the ¬button goes
out. Airflow and air distribution are set to
automatic mode.
MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles for the USA.
MAX COOL is only operational when the
engine is running.
XTo activate: press theÙbutton.
The indicator lamp in the button lights up.
XTo deactivate: press theÙbutton.
The indicator lamp in the button goes out.
The previously selected settings are
restored.
When you activate MAX COOL, climate con-
trol switches to the following functions:
Rmaximum cooling
Rmaximum airflow
Rair-recirculation mode on
Defrosting the windows
Windows fogged up on the inside
XActivate the ¿orÁ cooling with air
dehumidification function.
XDual-zone automatic air conditioning: acti-
vate the Ãmode button.
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
XActivate the windshield wipers.
XAir-conditioning system: press the Por
O button.
XDual-zone automatic air conditioning:
press the _button until the Por
O symbol appears in the display.
iYou should only select this setting until
the windshield is clear again.
Operating the climate control systems131
Climate control

ECO symbol. This means that the engine is
operating with four cylinders.
If cylinder shut-off is not active, the engine
will operate with all eight cylinders. In this
case,8, the number of active cylinders, is
shown in the èECO symbol.
Automatic engine switch-off
All vehicles (except Mercedes-AMG vehi-
cles)
If the vehicle is braked to a standstill in Dor N,
the ECO start/stop function switches off the
engine automatically.
The ECO start/stop function is operational
when:
Rthe indicator lamp in the ECO button is lit
green.
Rthe outside temperature is within the range that is suitable for the system.
Rthe engine is at normal operating temper-
ature.
Rthe set temperature for the vehicle interior
has been reached.
Rthe battery is sufficiently charged.
Rthe system detects that the windshield is
not fogged up when the air-conditioning
system is switched on.
Rthe hood is closed.
Rthe driver's door is closed and the driver's
seat belt is fastened.
iAll of the vehicle's systems remain active
when the engine is stopped automatically.
iAutomatic engine switch-off can take
place a maximum of four times in a row
(initial stop, then three subsequent stops)..
iThe HOLD function can be activated if the
engine has been switched off automati-
cally. It is then not necessary to continue
applying the brakes during the automatic
stop phase. When you depress the accel-
erator pedal, the engine starts automati-
cally and the braking effe
ct of the HOLD
function is deactivated. Mercedes-AMG vehicles
If the vehicle is braked to a standstill in
Dor N,
the ECO start/stop function switches off the
engine automatically.
The ECO start/stop function is operational
and the èECO symbol is displayed in
green in the multifunction display, if:
Rthe indicator lamp in the ECO button is lit
green.
Rthe outside temperature is within the range
that is suitable for the system.
Rthe engine is at normal operating temper-
ature.
Rthe set temperature for the vehicle interior
has been reached.
Rthe battery is sufficiently charged.
Rthe system detects that the windshield is
not fogged up when the air-conditioning
system is switched on.
Rthe hood is closed.
Rthe driver's door is closed and the driver's
seat belt is fastened.
If the conditions for automatic engine switch-
off are not all fulfilled, the èECO symbol is
lit yellow.
iAll of the vehicle's systems remain active
when the engine is stopped automatically.
iThe engine can be automatically switched
off an unlimited number of times.
iThe HOLD function can be activated if the
engine has been switched off automati-
cally. It is then not neces
sary to continue
applying the brakes during the automatic
stop phase. When you depress the accel-
erator pedal, the engine starts automati-
cally and the braking effect of the HOLD
function is deactivated.
144Driving
Dr iving an d parking

Automa tic engine start
Allvehicles (excep tMercedes-AM G vehi-
cles)
The engin estart sautomatically if:
Ryou switch off th eECO start/sto pfunction
by pressing th eECO butto n
Rin transmission position Dor Nthebrak e
pedal is release dand th eHOLD function is
no tactive
Ryou depress th eaccelerato rpedal
Ryou engage revers egear R
Ryou mov eth etransmission out of position
P
Ryou unfasten your seat belt or open th e
driver' sdoor
Rth evehicl estart sto rol l
Rthebrak esystem require sthis
Rth etemperature in th evehicl einterior devi-
ate sfrom th eset range
Rth esystem detects moisture on th ewind-
shield when th eair-conditioning system is
switched on
Rth ebattery's condition of charge is to olow
iShifting th etransmission to position P
does no tstart th eengine.
Mercedes-AM G vehicles
The engin estart sautomatically if:
Ryou switch off th eECO start/sto pfunction
by pressing th eECO butto n
Rin transmission position Dor Nthebrak e
pedal is release dand th eHOLD function is
no tactive
Ryou depress th eaccelerato rpedal
Ryou engage revers egear R
Ryou mov eth etransmission out of position
P
Ryou switch to driv eprogram Sor M
Ryou unfasten your seat belt or open th e
d
river' sdoor
Rth evehicl estart sto rol l
Rthebrak esystem require sthis
Rth etemperature in th evehicl einterior devi-
ate sfrom th e setrange
Rthesystem detects moisture on th ewind-
shield when th eair-conditioning system is
switched on
Rth ebattery's condition of charge is to olow
iShifting th etransmission to position P
does no tstart th eengine.
iIf you shif tth etransmission from Rto D,
th eECO start/sto pfunction is available
again once th eè ECO symbol reap -
pear sin green in th emultifunction display.
Deactivating oractivating the ECO
start/stop function
All vehicles (excep tMercedes-AM G vehi-
cles)
XTo switch off:press ECO butto n:.
Indicato rlamp ;goes out .
XTo switch on: press ECO butto n:.
Indicato rlamp ;lights up.
iIf indicator lamp ;is off ,th eECO start /
stop function has been deactivated man -
ually or as th eresult of amalfunction .The
engin ewill then no tbe switched off auto -
matically when th evehicl e stops .
iThe ECO start/sto pfunction is activated
eac htime th eengin eis switched on .
Driving145
Driving and parking
Z

Heavy and light loads
GWARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
!Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately, but
drive on for a short while. This allows the air-
flow to cool the brakes more quickly.
Wet roads
If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has been washed or driven through deep water.
You then have to depress the brake pedal
more firmly. Maintain a greater distance from
the vehicle in front.
After driving on a wet road or having the vehi- cle washed, brake firmly while paying atten-
tion to the traffic conditions. This will warm up
the brake discs, thereby drying them more
quickly and protecting them against corro-
sion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
RBrake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
RCarefully depress the brake pedal and the
beginning and end of a journey.
RMaintain a greater distance to the vehicle
ahead.
Servicing the brakes
!The brake fluid level may be too low, if:
Rif the red brake warning lamp lights up in
the instrument cluster and
Ryou hear a warning tone while the engine
is running
Observe additional warning messages in
the multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immedi-
ately. Consult a qualified specialist work-
shop to arrange this.
!As the ESP®system operates automati-
cally, the engine and the ignition must be
switched off (SmartKey in position 0or 1in
the ignition lock) if the electric parking
brake is being tested on a brake dynamom-
eter (maximum 10 seconds).
Braking triggered automatically by ESP
®
may seriously damage the brake system.
All checks and maintenance work on the
brake system must be carried out at a quali-
fied specialist workshop.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the function-
ality of your brakes at regular intervals.
Information on BAS (Brake Assist)
(
Ypage 62).
Mercedes-Benz recommends that you only
have brake pads/linings installed on your
vehicle which have been approved for
Mercedes-Benz vehicles or which correspond
to an equivalent quality standard. Brake
166Driving tips
Driving and parking

pads/linings which have not been approved
for Mercedes-Benz vehicles or which are not
of an equivalent quality could affect your vehi-
cle's operating safety.
Mercedes-Benz recommends that you only
use brake fluid that has been specially
approved for your vehicle by Mercedes-Benz,
or which corresponds to an equivalent quality
standard. Brake fluid which has not been
approved for Mercedes-Benz vehicles or
which is not of an equivalent quality could
affect your vehicle's operating safety.
High-performance and ceramic brake
system (Mercedes-AMG vehicles)
The high-performance brake system is only
available on Mercedes-AMG vehicles.
The AMG brake systems are designed for
heavy loads. This may lead to noise when
braking. This will depend on:
RSpeed
RBraking force
RAmbient conditions, e.g. temperature and
humidity
The wear of individual components of the
brake system, such as the brake pads/linings or brake discs, depends on the individual driv-
ing style and operating conditions.
For this reason, it is impossible to state a
mileage that will be valid under all circum-
stances. An aggressive driving style will lead
to high wear. You can obtain more informa-
tion on this from a qualified specialist work-
shop.
New and replaced brake pads and discs only
reach their optimum braking effect after sev-
eral hundred kilometers of driving. Compen-
sate for this by applying greater force to the
brake pedal. Keep this in mind, and adapt
your driving and braking accordingly during
this break-in period.
Excessive heavy braking results in corre-
spondingly high brake wear. Observe the
brake system warning lamp in the instrument
cluster and note any brake status messages in the multifunction display. Especially for
high performance driving, it is important to
maintain and have the brake system checked
regularly.
Driving on wet roads
Hydroplaning
If water has accumulated to a certain depth
on the road surface, there is a danger of
hydroplaning occurring, even if:
Ryou drive at low speeds.
Rthe tires have adequate tread depth.
For this reason, in the event of heavy rain or in
conditions in which hydroplaning may occur,
you must drive in the following manner:
Rlower your speed.
Ravoid ruts.
Ravoid sudden steering movements.
Rbrake carefully.
Driving on flooded roads
!Do not drive through flooded areas.
Check the depth of any water before driving
through it. Drive slowly through standing
water. Otherwise, water may enter the
vehicle interior or the engine compartment.
This can damage the electronic compo-
nents in the engine or the automatic trans-
mission. Water can also be drawn in by the
engine's air suction nozzles and this can
cause engine damage.
Winter driving
GWARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
Driving tips167
Driving and parking
Z