air condition MERCEDES-BENZ SLK55AMG 2007 R171 Owner's Manual

Contents
Automatic transmission* ................... 155
Gear selector lever ....................... 155
Shifting procedure ....................... 156
Gear selector lever positions ....... 157
Driving tips ................................... 159
Gear ranges ................................. 160
Automatic shift program .............. 161
Gear selector lever one-touch
gearshifting .................................. 162
Steering wheel gearshift control
one-touch gearshifting* ............... 163
Manual shift program* ................. 165
Emergency operation
(Limp-Home Mode) ...................... 167
Good visibility .................................... 168
Headlamp cleaning system* ........ 168
Rear view mirrors ......................... 168
Sun visors .................................... 170
Rear window defroster ................. 170Climate control ................................... 172
Switching climate control
system on/off ............................... 175
Setting the temperature................ 175
Adjusting air distribution............... 176
Adjusting air volume ..................... 177
Basic settings ............................... 177
Front defroster.............................. 177
Air recirculation mode .................. 178
Air conditioning............................. 180
Residual engine heat utilization .... 181
Automatic climate control* ................ 182
Deactivating the climate control
system .......................................... 185
Operating the climate control
system in automatic mode............ 186
Setting the temperature................ 186
Adjusting air distribution............... 187
Adjusting air volume ..................... 188
Front defroster.............................. 188
Maximum cooling MAX COOL ....... 189
Air recirculation mode .................. 189
Air conditioning............................. 191
Residual heat and ventilation ........ 192Audio system...................................... 193
Audio and telephone*, operation .. 193
Operating safety ........................... 193
Operating and display elements ... 194
Button and soft key operation ...... 196
Operation...................................... 196
Radio operation ............................ 199
Introduction to satellite radio*
(USA only) ..................................... 203
CD mode....................................... 208
GSM network phones ................... 219
TDMA or CDMA network phones .. 226
Emergency calls “911” ................. 233
Power windows .................................. 235
Opening and closing the windows 235
Synchronizing power windows ...... 239
Retractable hardtop ........................... 240
Opening and closing the
retractable hardtop ....................... 240
Wind screen* ................................ 246
Driving systems .................................. 247
Cruise control ............................... 247

Contents
Technical data.................................. 427
Parts service ...................................... 428
Warranty coverage ............................. 429
Loss of Service and Warranty
Information Booklet...................... 429
Identification labels............................ 430
Layout of poly-V-belt drive ................. 432
SLK 280, SLK 350 ........................ 432
SLK 55 AMG ................................. 432
Engine ................................................ 433
Rims and tires .................................... 434
Same size tires ............................. 435
Mixed size tires ............................ 437
Spare wheel with collapsible tire .. 439
Electrical system................................ 440
Main Dimensions ............................... 441
Weights .............................................. 442Fuels, coolants, lubricants, etc. ......... 443
Capacities .................................... 443
Engine oils.................................... 445
Engine oil additives ...................... 445
Air conditioning refrigerant .......... 445
Brake fluid .................................... 446
Premium unleaded gasoline ......... 446
Fuel requirements ........................ 447
Gasoline additives ........................ 447
Coolants....................................... 448
Windshield washer system and
headlamp cleaning system* ......... 450Index................................................. 451

11 Introduction
Operator’s Manual
Important notice for California
retail buyers and lessees of
Mercedes-Benz automobiles
Under California law you may be entitled to
a replacement of your vehicle or a refund
of the purchase price or lease price, if
Mercedes-Benz USA, LLC and/or its
authorized repair or service facilities fail to
fix one or more substantial defects or mal-
functions in the vehicle that are covered by
its express warranty after a reasonable
number of repair attempts. During the
period of 18 months from original delivery
of the vehicle or the accumulation of
18 000 miles (approximately 29 000 km)
on the odometer of the vehicle, whichever
occurs first, a reasonable number of repair
attempts is presumed for a retail buyer or
lessee if one or more of the following
occurs:(1) the same substantial defect or
malfunction results in a condition that
is likely to cause death or serious
bodily injury if the vehicle is driven, that
defect or malfunction has been subject
to repair two or more times, and you
have directly notified Mercedes-Benz
USA, LLC in writing of the need for its
repair,
(2) the same substantial defect or mal-
function of a less serious nature than
category (1) has been subject to
repair four or more times and you have
directly notified us in writing of the
need for its repair, or(3) the vehicle is out of service by reason
of repair of the same or different
substantial defects or malfunctions for
a cumulative total of more than
30 calendar days.
Written notification should not be sent to a
dealer, it should be addressed to:
Mercedes-Benz USA, LLC
Customer Assistance Center
One Mercedes Drive
Montvale, NJ 07645-0350

118 Controls in detail
Instrument cluster
A full view illustration of the instrument
cluster can be found in the “At a glance”
section (
page 26).
1To brighten instrument cluster
illumination (knob+)
2To dim instrument cluster
illumination (knob-)
3Reset buttonJ
The instrument cluster is activated when
you

open a door

switch on the ignition (page 37)

press reset buttonJ

switch on the exterior lampsFor information on changing the instru-
ment cluster settings, e.g. the language,
see “Instrument cluster submenu”
(
page 139).Adjusting instrument cluster
illumination
Adjusting
Use knobs 1 or 2 to adjust the illumina-
tion brightness of the instrument cluster.
To brighten illumination
Press knob1 briefly.
The instrument cluster illumination
brightens.
To dim illumination
Press knob2 briefly.
The instrument cluster illumination
dims.
iOpening a door or pressing the reset
buttonJ without switching on the ignition or
the exterior lighting activates the multifunction
display illumination only for 30 seconds.
Warning!G
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see
information about your driving conditions,
such as speed or outside temperature,
warning/indicator lamps,
malfunction/warning messages or the
failure of any systems. Driving characteris-
tics may be impaired.
If you must continue to drive, do so with
added caution. Contact an authorized
Mercedes-Benz Center as soon as possible.
iThe instrument cluster illumination
automatically adjusts to the ambient light.
You can only adjust the brightness of the instru-
ment cluster illumination when it is dark outside.
iWith the exterior lighting switched on, the
brightness of the switches in the center console
will also be adjusted when using knob 1 or 2.

174 Controls in detail
Climate control
Climate control panel
The climate control is operational when-
ever the engine is running. The system
cools or heats the interior depending on
the selected interior temperature and the
current outside temperature.Nearly all dust particles, pollutants and
odors are filtered out before outside air
enters the interior through the air distribu-
tion system.
The air conditioning will not engage (no
cooling) if the A/Cmode is deactivated
(
page 174).
Item
1Temperature control, left side
2Air volume control, climate control
on/off
3Air distribution control
4Temperature control, right side
5Rear window defroster (page 170)
6Front defroster
7AC cooling on/off,
Residual heat/ventilation
8Air recirculation
Warning!G
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature).
This may cause burns or frostbite to unpro-
tected skin in the immediate area of the air
vents. Always keep sufficient distance
between unprotected parts of the body and
the air vents. If necessary, use the air
distribution controls (
page 174) to direct
the air to air vents in the vehicle interior
that are not in the immediate area of un-
protected skin.
Warning!G
Follow the recommended settings for
heating and cooling given on the following
pages. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.

175 Controls in detail
Climate control
Switching climate control system
on/off
Switching off
Set air volume control2 (page 174)
to position0.
Switching on
Switch on the ignition (page 37).
Set air volume control2 to any speed
(
page 174).
The previous settings are once again in
effect.
Setting the temperature
Use temperature controls1 and4
(
page 174) to separately adjust the air
temperature on each side of the passenger
compartment. You should raise or lower
the temperature setting in small incre-
ments, preferably starting at 72°F (22°C).
The climate control will adjust to the set
temperature as fast as possible.
Increasing
Turn temperature control 1
and/or4 (
page 174) slightly
clockwise.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
iSevere conditions (e.g. strong air pollution)
may require replacement of the filter before its
scheduled interval. A clogged filter will reduce
the air volume to the interior.
If the vehicle interior is hot, ventilate the interior
before driving off. The climate control will then
adjust the interior temperature to the set value
much faster.
Keep the air intake grille in front of the wind-
shield free of snow and debris.
When the retractable hardtop is closed, do not
obstruct air flow by placing objects on the air
flow-through exhaust slots below the rear
window.
Warning!G
When the climate control is switched off, the
outside air supply and circulation are also
switched off. Only choose this setting for a
short time. Otherwise the windows could
fog up, impairing visibility and endangering
you and others.

177 Controls in detail
Climate control
Adjusting air volume
Ten blower speeds are available.
Use air volume control2
(
page 174) to adjust the air volume.
Basic settings
Heating (winter)
Turn temperature controls1and4
(
page 174) to the desired position.
Turn air volume control2
(
page 174) to level2 or higher.
Otherwise the windows may fog over.
Turn air distribution control3
(
page 174) to a position
betweenbandY.
Open the side air vents if necessary.
Close the center air vents.Heating (summer)
Turn air temperature
control1and4 (
page 174) to the
desired position.
Turn air volume control2
(
page 174) to level1 or higher.
Turn air distribution control3
(
page 174) to positiona.
Open the center and side air vents.
Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
side windows.Activating
Press buttonP (page 174).
The indicator lamp on the button
comes on.
The air conditioning switches
automatically to the following
functions:

cooling on to dehumidify

maximum blowing and heating
power

air flows onto the windshield
and the front side windows
iKeep this setting selected only until the
windshield or the side windows are clear again.
iWhen you have activated the front defroster
using buttonP, no other settings are
possible.

178 Controls in detail
Climate control
Deactivating
Press buttonP (page 174) again.
The indicator lamp on the button goes
out.
The previous settings are once again in
effect.
Windshield fogged on the outside
Switch the windshield wipers on
(
page 56).
Turn air distribution control3 to
positionaorY (
page 174).
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside (e.g. before driving
through a tunnel). This setting cuts off the
intake of outside air and recirculates the
air in the interior.
Activating
Briefly press button,
(
page 174).
The indicator lamp on the button
comes on.Deactivating
Press button, (page 174) again.
The indicator lamp on the button goes
out.
iThe cooling remains switched on.
Warning!G
Fogged windows impair visibility, endanger-
ing you and others. If the windows begin to
fog on the inside, switching off the air
recirculation mode immediately should clear
interior window fogging. If interior window
fogging persists, make sure the air
conditioning (
page 180) is activated, or
press buttonP.
iThe air recirculation mode is activated
automatically at high outside temperatures.
The indicator lamp on button, is not lit when
the air recirculation mode is automatically
switched on.
A quantity of outside air is added after
approximately 30 minutes.
iThe air recirculation mode is deactivated
automatically:

after 5 minutes if the outside temperature is
below approximately 41°F (5°C)

after 5 minutes if the air conditioning is
turned off

after 30 minutes if the outside temperature
is above approximately 41°F (5°C)

180 Controls in detail
Climate control
Air conditioning
The cooling function, only operational
when the engine is running, cools the
vehicle interior down to the selected
temperature. The cooling function also
dehumidifies the air in the vehicle interior,
thus preventing the windows from
fogging up.Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the climate
control system. The air in the vehicle will
then no longer be cooled or dehumidified.
Press button9 (page 174).
The indicator lamp on the button goes
out. The cooling function switches off
after a short delay.
Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Press button9 (page 174) again.
The indicator lamp on the button
comes on.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.Maximum cooling
Turn thumbwheels2and9
(
page 172) upwards to the first stop.
The fixed center air vents3and8
(
page 172) and the adjustable air
vents1anda (
page 172) are
open.
For draft-free ventilation, move the
sliders for the center air vents
1anda (
page 172) to the middle
position.
Turn thumbwheels6andb
(
page 172) for the adjustable side air
vents5andc (
page 172) to the
fully open position.
Set air distribution control3
(
page 176) to positiona.
The air distribution directs the air
through the center and side air vents.
Warning!G
If you turn off the cooling function, the inte-
rior air is not dried. The windows can fog up
more quickly. Window fogging may impair
visibility and endanger you and others.
iCondensation may drip from underneath the
vehicle. This is normal and not an indication of a
malfunction.

185 Controls in detail
Automatic climate control*
Nearly all dust particles, pollutants and
odors are filtered out before outside air
enters the interior through the air dis-
tribution system.
The air conditioning will not engage (no
cooling) if the A/Cmode is deactivated
(
page 184).Deactivating the climate control
system
Deactivating
Press button´ (page 184).
The indicator lamp on the button
comes on.
Warning!G
Follow the recommended settings for
heating and cooling given on the following
pages. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
iSevere conditions (e.g. strong air pollution)
may require replacement of the filter before its
scheduled interval. A clogged filter will reduce
the air volume to the interior.
If the vehicle interior is hot, ventilate the interior
before driving off. The automatic climate control
will then adjust the interior temperature to the
set value much faster.
Keep the air intake grille in front of the wind-
shield free of snow and debris.
When the retractable hardtop is closed, do not
obstruct air flow by placing objects on the air
flow-through exhaust slots below the rear win-
dow.
Warning!G
When the automatic climate control is
switched off, the outside air supply and
circulation are also switched off. Only
choose this setting for a short time.
Otherwise the windows could fog up,
impairing visibility and endangering you
and others.