rear window defroster MERCEDES-BENZ SLK-Class 2014 R172 Owner's Manual

Notes
............................................. 279
Paint .............................................. 281
Plastic trim .................................... 284
Power washer ................................ 281
Roof lining ...................................... 285
Seat belt ........................................ 285
Seat cover ..................................... 285
Sensors ......................................... 283
Steering wheel ............................... 284
Trim pieces .................................... 284
Washing by hand ........................... 280
Wheels ........................................... 282
Windows ........................................ 282
Wiper blades .................................. 282
Wooden trim .................................. 284
Car keys
see SmartKey
Car wash (care) ................................. 280
CD player/CD changer (on-board
computer) .......................................... 198
Center console Lower section .................................. 33
Upper section .................................. 32
Central locking
Automatic locking (on-board
computer) ...................................... 205
Locking/unlocking (SmartKey) ........70
Changing bulbs
High-beam headlamps ...................116
Low-beam headlamps ....................116
Reversing lamps ............................ 117
Side marker lamps (rear) ...............116
Turn signals (front) ......................... 117
Children
In the vehicle ................................... 55
Restraint systems ............................ 55
Special seat belt retractor ...............58
Cigarette lighter ................................ 258
Cleaning Mirror turn signal ........................... 283
Climate control
Air-conditioning system .................123
Automatic climate control (dual-
zone) .............................................. 125
Controlling automatically ...............129
Cooling with air dehumidification ..127
Defrosting the windows .................131
Defrosting the windshield ..............131Important safety notes
..................122
Indicator lamp ................................ 129
Information on using dual-zone
automatic climate control ..............126
Maximum cooling .......................... 131
Notes on using the air-
conditioning system ....................... 124
Overview of systems ......................122
Problems with cooling with air
dehumidification ............................ 129
Problem with the rear window
defroster ........................................ 133
Refrigerant ..................................... 349
Refrigerant filling capacity .............349
Setting the air distribution .............130
Setting the airflow .........................130
Setting the air vents ......................134
Setting the temperature ................129
Switching air-recirculation mode
on/off ............................................ 133
Switching on/off ........................... 127
Switching residual heat on/off ......133
Switching the rear window
defroster on/off ............................ 131
Switching the ZONE function on/
off .................................................. 130
Cockpit
Overview .......................................... 28
see Instrument cluster
Collapsible spare wheel
Inflating ......................................... 338
see Emergency spare wheel
COMAND display
Cleaning ......................................... 284
Combination switch ..........................110
Compass Calibrating ..................................... 272
Calling up ....................................... 271
Setting ........................................... 271
Consumption statistics (on-board
computer) .......................................... 195
Convenience closing feature ..............84
Convenience opening feature see Side windows
Coolant (engine)
Checking the level .........................277
Display message ............................ 225
Filling capacity ............................... 3486
Index

Protection of the environment
General notes .................................. 20
Pulling away
Automatic transmission .................142
Manual transmission ..................... .142 Q
Qualified specialist workshop ...........24 R
RACETIMER (on-board computer) ....207
Radar sensor system Activating/deactivating .................205
Display message ............................ 228
Radio
Selecting a station .........................198
Radio-wave reception/
transmission in the vehicle Declaration of conformity ................24
Reading lamp ..................................... 113
Rear fog lamp Display message ............................ 223
Switching on/off ........................... 110
Rear lamps
see Lights
Rear-view mirror
Anti-glare (manual) ........................103
Dipping (automatic) .......................104
Rear window defroster
Problem (malfunction) ...................133
Switching on/off ........................... 132
Refrigerant (air-conditioning
system)
Important safety notes ..................349
Refueling
Fuel gauge ....................................... 29
Important safety notes ..................156
Refueling proces s.......................... 157
see Fuel
Releasing the parking lock
manually (automatic transmission) 156
Remote control Programming (garage door opener) 268 Replacing bulbs
Important safety notes ..................114
Overview of bulb type s.................. 115
Removing/replacing the cover
(front wheel arch) .......................... 115
Reporting safety defects ....................25
Reserve (fuel tank) see Fuel
Reserve fuel
Display message ............................ 227
Warning lamp ................................. 248
see Fuel
Residual heat (climate control) ........133
Restraint system see SRS (Supplemental Restraint
System)
Reverse gear
Engaging (automatic transmission) 149
Engaging (manual transmission) ....148
Reversible floor panel (trunk) ..........256
Reversing feature Side windows ................................... 82
Trunk lid .......................................... .79
Reversing lamps (display message) 223
Roadside Assistance (breakdown) ....22
Roof Display message ............................ 237
Important safety notes ....................86
Opening/closing (with roof switch) .. 87
Opening/closing (with SmartKey) ....88
Overview .......................................... 86
Problem (malfunction) .....................93
Relocking ......................................... 88
Roof carrier ........................................ 256
Roof lining and carpets (cleaning
guidelines) ......................................... 285
Roof switch .......................................... 87 S
Safety Children in the vehicle .....................55
Child restraint systems ....................55
Occupant Classification System
(OCS) ............................................... 45
Safety system
see Driving safety systems 14
Index

Problems with the seat heating
The seat heating has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
X Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting.
X Once the battery is sufficiently charged,
switch on the seat heating again. AIRSCARF
Activating/deactivating G
WARNING
When AIRSCARF is switched on, very hot air
can flow from the vents in the head restraints.
This could result in burns in the immediate
vicinity of the air vents. There is a risk of injury.
Reduce the heater output before it becomes
too hot. The AIRSCARF function warms the head and
neck area of vehicle occupants with warm air.
The warm air flows out of the holes in the head
restraints.
The three red indicator lamps in the button
indicate the heating level you have selected. X
Make sure that the SmartKey is in position
2in the ignition lock.
X To switch on: press button0043.
Three red indicator lamps in the button light
up. The blower starts up after a preheating
phase of seven seconds.
X Press button 0043repeatedly until the
desired heating level is set.
X To switch off: press button0043repeatedly
until all the indicator lamps go out.
i The blower continues running for seven
seconds to cool down the heating
elements.
i If the battery voltage is too low, AIRSCARF
may switch off.
Problems with AIRSCARF AIRSCARF has switched off prematurely or
will not switch on. The vehicle's electrical
system voltage is too low because too many
electrical consumers are switched on.
X Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting.
X Switch on AIRSCARF again. Steering wheel
Important safety notes
G
WARNING
You could lose control of your vehicle if you
do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine. 100
Steering wheelSeats, steering wheel and mirrors

Mirrors
Rear-view mirror
X
Anti-glare mode: flick anti-glare lever 0043
forwards or back. Exterior mirrors
Adjusting the exterior mirrors G
WARNING
The exterior mirrors reduce the size of the
image. Visible objects are actually closer than
they appear. This means that you could
misjudge the distance from road users
traveling behind, e.g. when changing lane.
There is a risk of an accident.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder. G
WARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the
distance from road users traveling behind,
e.g. when changing lane. There is a risk of an
accident.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder. X
Make sure that the SmartKey is in position
1or 2in the ignition lock.
X Press button 0043for the left-hand exterior
mirror or button 0044for the right-hand
exterior mirror.
The indicator lamp in the corresponding
button lights up in red.
The indicator lamp goes out again after
some time. You can adjust the selected
mirror using adjustment button 0087as long
as the indicator lamp is lit.
X Press adjustment button 0087up, down, to
the right or to the left.
The exterior mirror must be set to a position
that provides you with a good overview of
traffic conditions.
The convex exterior mirrors provide a larger
field of vision.
The exterior mirrors are automatically heated
after starting the vehicle if the rear window
defroster is switched on and the outside
temperature is low. Mirror heating lasts up to
10 minutes.
i You can also heat up the exterior mirrors
manually by switching on the rear window
defroster. Mirrors
103Seats, steering wheel and mirrors Z

Air-conditioning system control panel
Canada only
0043
Sets the temperature (Y page 129)
0044 Activates/deactivates the residual heat function (Y page 133)
0087 Sets the air distribution (Y page 130)
0085 Defrosts the windshield (Y page 131)
0083 Activates/deactivates cooling with air dehumidification ( Ypage 127)
0084 Activates/deactivates air-recirculation mode (Y page 133)
006B Sets the airflow (Y page 130)
006C Switches the rear window defroster on/off (Y page 131)USA only
0043
Sets the temperature (Y page 129)
0044 Switches maximum cooling MAX COOL on/off (Y page 131) Overview of climate control systems
123Climate control

0087
Sets the air distribution (Y page 130)
0085 Defrosts the windshield (Y page 131)
0083 Activates/deactivates cooling with air dehumidification (Y page 127)
0084 Activates/deactivates air-recirculation mode (Y page 133)
006B Sets the airflow (Y page 130)
006C Switches the rear window defroster on/off (Y page 131)Notes on using the air-conditioning
system
Air-conditioning system Below, you can find a number of notes and
recommendations to help you use the air-
conditioning system optimally.
R Switch on climate control using the 005A
button. The indicator lamp in the 005A
button lights up.
R Set the temperature to 72 ‡ (22 †).
R Recommendation for air distribution in
winter: set the009Band0061 settings.
Recommendation for air distribution in
summer: set the009Csetting.
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 a tunnel. The windows could
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
ECO start/stop function During automatic engine switch-off, the ECO
start/stop function only operates at a
reduced capacity. If you require full climate
control capacity, the ECO start/stop function
can be deactivated by pressing the ECO
button (Y page 145). 124
Overview of climate control systemsClimate control

Control panel for dual-zone automatic climate control
Canada only
0043
To set the temperature, left (Y page 129)
0044 To defrost the windshield (Y page 131)
0087 To switch the ZONE function on/off
0085 To switch cooling with air dehumidification on/off (Y page 127)
To switch the residual heat function on/off (Y page 133)
0083 To switch the rear window defroster on/off (Y page 131)
0084 To set the temperature, right (Y page 129)
006B To activate/deactivate air-recirculation mode (Y page 133)
006C To set the air distribution (Y page 130)
006D To increase the airflow (Y page 130)
006E To reduce the airflow (Y page 130)
006F To switch climate control on/off (Y page 127)
0070 To set climate control to automatic (Y page 129) Overview of climate control systems
125Climate control

USA only
0043
To set the temperature, left (Y page 129)
0044 To defrost the windshield (Y page 131)
0087 To switch maximum cooling on/off (Y page 131)
0085 To switch cooling with air dehumidification on/off (Y page 127)
0083 To switch the rear window defroster on/off (Y page 131)
0084 To set the temperature, right (Y page 129)
006B To activate/deactivate air-recirculation mode (Y page 133)
006C To set the air distribution (Y page 130)
006D To increase the airflow (Y page 130)
006E To reduce the airflow (Y page 130)
006F To switch climate control on/off (Y page 127)
0070 To set climate control to automatic (Y page 129)Information about 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 0058and
005A buttons or the 0056button on the
control panel of the climate control. The
indicator lamps in the 0058and005A
buttons or the 0056button light up.
R Set the temperature to 72 ‡ (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 a tunnel. 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
for the front-passenger side as well. The
indicator lamp in the 00D6button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior 126
Overview of climate control systemsClimate control

driver's side is adopted for the front-
passenger side.
Defrosting the windshield
You can use this function to defrost the
windshield or to defrost the inside of the
windshield and the side windows.
Switch off the "Windshield defrosting"
function as soon as the windshield is clear
again.
X Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X To activate: press the0064button.
The indicator lamp in the 0064button lights
up.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windshield and
front side windows
R air-recirculation mode off
X To deactivate: press the0064button.
The indicator lamp in the 0064button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
X Press the 0058button.
The indicator lamp in the 0064button 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. X
To activate: press the00C9button.
The indicator lamp in the button lights up.
X To activate: press off-road button 00C9
again.
The indicator lamp goes out. The previously
selected settings are restored.
When you activate MAX COOL, climate
control switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on Defrosting the windows
Windows fogged up on the inside X
Activate the 005A/0056cooling with air
dehumidification function.
X Activate automatic mode 0058.
X If the windows continue to fog up, activate
the 0064 "Windshield defrosting" function.
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Activate the windshield wipers.
X Press the 008Fbutton repeatedly until the
009C or009B symbol appears in the
display.
i You should only select this setting until
the windshield is clear again. 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.Operating the climate control systems
131Climate control

Problems with the rear window defroster
Problem Possible causes/consequences and
0050
0050Solutions The indicator lamp on
the
006C button
flashes. The rear
window defroster has
deactivated
prematurely or cannot
be activated. The on-board voltage is too low because too many electrical
consumers are switched on.
X
Switch 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. The roof is open.
X
Close the roof.
When the roof is closed, the rear window defroster can be
activated again. Activating/deactivating air-
recirculation mode
General notes If you switch on air-recirculation mode, the
windows can fog up more quickly, in
particular at low temperatures. Only use air-
recirculation mode briefly to prevent the
windows from fogging up.
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 139).
X To activate: press the0072button.
The indicator lamp in the 0072button lights
up.
i Air-recirculation mode is automatically
activated at high levels of pollution or at
high outside temperatures. When air-
recirculation mode is activated
automatically, the indicator lamp in the
0072 button is not lit.
Outside air is added after about
30 minutes.
X To deactivate: press the0072button.
The indicator lamp in the 0072button goes
out. i
Air-recirculation mode deactivates
automatically:
R after approximately five minutes at
outside temperatures below
approximately 41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes at
outside temperatures above
approximately 41 ‡(5 †) if the "Cooling
with air dehumidification" function is
activated Activating/deactivating the residual
heat function
General notes The residual heat function is only available on
vehicles for Canada.
It is possible to make use of the residual heat
of the engine to continue heating the
stationary vehicle for up to 30 minutes after
the engine has been switched off. The heating
time depends on the temperature that has
been set.Operating the climate control systems
133Climate control