2003 MERCEDES-BENZ SLK 230 KOMPRESSOR engine

106 Controls in detailClimate control
Air conditioning
The air conditioning is operational while
the engine is running and cools the interior
air to the temperature set by the operator.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 buttonAC
OFF
(page 102).
The indicator lamp on the
AC
OFF
button lights up.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.!If the rear window defroster switches
off too soon and the indicator lamp
starts blinking, this means that too
many electrical consumers are operat-
ing simultaneously and there is insuffi-
cient voltage in the battery. The system
responds automatically by deactivating
the rear window defroster.
As soon as the battery has sufficient
voltage, the rear window defroster au-
tomatically turns itself back on.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.
Warning!
G
While driving, deactivate the air conditioning
only temporarily to prevent window fogging.

107 Controls in detail
Climate control
Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
PressAC
OFF
again (
page 102).
The indicator lamp on
theAC
OFF
button goes out.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.
Residual heat
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.
Activating
Turn the key in the steering lock to
position1 or remove it from the steer-
ing lock.

Press button
Ð
(page 102).
The indicator lamp on button
Ð

comes on.
Deactivating

Press button
Ð
(page 102).
The indicator lamp on button
Ð

goes out.The residual heat is automatically turned
off:


when the ignition is switched on


after about 30 minutes


if the battery voltage dropsiHow long the system will provide heat-
ing depends on the coolant tempera-
ture and the temperature set by the
operator. The blower will run at speed
setting 1 regardless of the air distribu-
tion control setting.

137 Controls in detail
Driving systems
1Set current or higher speed
2Set current or lower speed
3Cancel cruise control
4Resume at previously set speed
Saving current speed
Accelerate or decelerate to the desired
speed.

Briefly lift1 or depress2 the cruise
control lever.
The current speed is set.

Remove your foot from the accelerator
pedal.
Cruise control is activated.Canceling cruise control
There are several ways to cancel cruise
control:

Step on the brake pedal.
or

Briefly push the cruise control lever to
position3.
Cruise control will be canceled. The
last speed set will be stored for later
use.iOn uphill or downhill grades, cruise
control may not be able to maintain the
set speed. Once the grade eases, the
set speed will be resumed.
!Moving gear selector lever to
positionN while driving also cancels
cruise control. However, the gear se-
lector lever should not be moved to
positionN while driving except to coast
when the vehicle is in danger of skid-
ding (e.g. on icy roads).iThe last stored speed is canceled when
you turn off the engine.

138 Controls in detailDriving systemsSetting stored speed
(“Resume” function)
Briefly push the cruise control lever to
position4.
Cruise control will resume the last pre-
viously set speed.

Remove your foot from the accelerator
pedal.Setting a higher speed

Lift the cruise control lever to
position1 and hold it up until the de-
sired speed is reached.

Release the cruise control lever.
The new speed is set.
Setting a lower speed

Depress the cruise control lever to
position2 and hold it down until the
desired speed is reached.

Release the cruise control lever.
The new speed is set.Fine adjustment in 1 mph (1 km/h) in-
crements
Faster

Briefly tip the cruise control lever in the
direction of arrow1.
Slower

Briefly tip the cruise control lever in the
direction of arrow2.
Warning!
G
The speed stored in memory should only be
set again if prevailing road conditions per-
mit. Possible acceleration or deceleration
differences arising from returning to preset
speed could cause an accident and/or seri-
ous injury to you and others.
iDepressing the accelerator pedal does
not deactivate cruise control. After
brief acceleration (e.g. for passing),
cruise control will resume the last
speed set.
iVehicles with automatic transmission:
When you use the cruise control lever
to decelerate, the transmission will au-
tomatically downshift if the engine’s
braking power does not brake the vehi-
cle sufficiently.
Vehicles with manual transmission:
The set cruise controlled speed is
switched off when declutching exceeds
4 seconds during downshifting a gear.

142 Controls in detailUseful featuresAshtray
1Cover plate
Opening ashtray
Briefly touch cover plate1.
The ashtray opens automatically.Removing ashtray insert

Secure vehicle from movement by
setting the parking brake. Move the
selector lever to positionP (manual
transmission: in first gear).

Pull ashtray past detent.

Hold left and right side2 of ashtray
insert and pull up.Reinstalling the ashtray insert

Place the ashtray insert into the
ashtray frame.

Push the ashtray insert down until it
engages.
Coin holder

Open the ashtray.

Pull at the top of cover plate1 and fold
it under3.
Warning!
G
Remove front ashtray only with vehicle
standing still. Set the parking brake to se-
cure vehicle from movement. Move gear
selector lever to positionP (manual trans-
mission: in first gear). With gear selector le-
ver in positionP (manual transmission: in
first gear) turn off the engine.

143 Controls in detail
Useful features
Cigarette lighter
1Cigarette lighter
2Cover
Turn key in the steering lock to
position1 or2 (
page 29).

Slide cover2 rearward.

Push in cigarette lighter1.
The cigarette lighter will pop out auto-
matically when hot.
Telephone*
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
The external antenna must be approved by
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Center for informa-
tion on the installation of an approved
external antenna. Refer to the radio trans-
mitter operation instructions regarding use
of an external antenna.
Warning!
G
Never touch the heating element or sides of
the cigarette lighter; they are extremely hot.
Hold the knob only.
When leaving the vehicle, always remove the
key from the steering lock, and lock your
vehicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and/or serious
personal injury.iThe cigarette lighter socket can be
used to accommodate electrical acces-
sories up to a maximum 85 W.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or serious
personal injury.

157 Operation
The first 1000 miles (1500 km)
Driving instructions
At the gas station
Engine compartment
Tires and wheels
Winter driving
Maintenance
Vehicle care

158 OperationThe first 1000 miles (1500 km)In the “Operation” section you will find de-
tailed information on operating, maintain-
ing and caring for your vehicle.
The first 1000 miles (1500 km)The more cautiously you treat your vehicle
during the break-in period, the more satis-
fied you will be with its performance later
on.

Drive your vehicle during the first
1000 miles (1500 km) at varying but
moderate vehicle and engine speeds.


During this period, avoid heavy loads
(full throttle driving) and excessive en-
gine speeds (no more than
2/3 of max-
imum rpm in each gear).


Do not attempt to slow the vehicle
down by shifting to a lower gear using
the selector lever or the gearshift lever.


Shift gears in a timely manner.


Avoid accelerating by kick-down.


Do not brake the vehicle by shifting to
a lower gear using the selector lever.


Select positions3,2 or1 only when
driving at moderate speeds (for hill
driving). After 1000 miles (1500 km) you may grad-
ually increase vehicle and engine speeds
to the permissible maximum.
!Additional instructions for AMG vehi-
cles:

During the first 1000 miles
(1500 km), do not exceed a speed
of 85 mph (140 km/h).


During this period, avoid engine
speeds above 4500 rpm in each
gear.
All of the above, as may apply to your
vehicle type, also apply when driving
the first 1000 miles (1500 km) after the
engine or the rear differential has been
replaced.
iAlways obey applicable speed limits.