technical data MERCEDES-BENZ SL CLASS 2000 Manual Online

95 Automatic climate control
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Rear window defroster
(only functions with hardtop installed)
Turn electronic key in steering lock to position 2.
To select, press F button.
To cancel, press F button again.
Note:
H eavy accu mul ation of snow and ic e shoul d be removed
before activating the defroster.
Th e rea r window defroster u ses a large am ou nt of power.
To keep the battery drain to a minimum, turn off the
defroster as soon as the window is clear.
The defroster is automatically turned off after a
maximum of 12 minutes of operation.
If several power consumers are turned on
simultaneously, or the battery is only partially charged,
it is possible that the defroster will automatically turn
itself off. When this happens, the indicator lamp inside
the switch starts blinking.
As soon as the battery has sufficient voltage, the
defroster automatically turns itself back on.Air distribution
Press b button repeatedly until the requested
symbol is displayed.
Air volume
Press “-” or “+” side of rocker switch ï until the
requested blower speed is attained. A choice of 7 blower
speeds is available.
To switch the automatic climate control off, press “-”
side of rocker switch ï until symbol OFF is
displayed.
The fresh air supply to the car interior is shut off.
While driving, use this setting only temporarily,
otherwise the windshield could fog up.
To switch the automatic climate control on again,
pressU, P, or “+” side ofï.

96 Automatic climate control
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Air recirculation
This mode can be selected to temporarily reduce the
entry of annoying odors or dust into the vehicle’s
interior.
Outside air is not supplied to the car’s interior.
To select, press O button.
To cancel, press O button again.
The system will automatically switch from recirculated
air to fresh air
• after approx. 5 minutes at outside temperatures
below approx. 40°F (5°C),
• after approx. 30 minutes, at outside temperatures
above approx. 40°F (5°C),
• after approx. 5 minutes, if button S is pressed.
Notes:
If the windows should fog up from the inside, switch
from recirculated air back to fresh air.
At high outside temperatures, the system automatically
engages the recirculated air mode thereby increasing
the cooling capacity performance, switching to partially
fresh air within 20 minutes.Residual engine heat utilization
With the engine switched off, it is possible to continue
heating the interior for a short while.
Air volume and distribution are controlled
automatically.
To select:
Turn electronic key in steering lock to position 1 or 0 or
remove electronic key.
Press T button.
This function selection will not activate if the battery
charge level is insufficient.
To c a n c e l :
Press T button.
The system will automatically shut off
• If you turn electronic key in steering lock to
position 2,
• after approx. 30 minutes,
• if the battery voltage drops.

97 Automatic climate control
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Dust filter
Nearly all dust particles and pollen are filtered out
before outside air enters the passenger compartment
through the air distribution system.
Notes:
D o not obstruct t he air f low by pla cing objects on th e air
f low through exhaust slots below the rear window.
Al so keep t he a ir inta ke g rill e in f ront of w indsh iel d free
of snow and debris.

98 Audio system
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Audio and telephone, operation
These instructions are intended to help you become
acquainted with your Mercedes-Benz vehicle radio.
They contain useful tips and a detailed description of
the user functions.
The right to correct errors and make technical amendments is
reserved.
Operating safety1 Optional equipment
Dolby and the double-D symbol
Ù
are trademarks of Dolby
Laboratories Licensing Corporation. The Dolby noise reduction
system is manufactured under licence from Dolby Laboratories
Licensing Corporation.
Wa r n i n g !
In order to avoid distraction which could lead to an
accident, system settings should be entered with
the vehicle at standstill and systems should be
operated by the driver only when traffic conditions
permit. Always pay full attention to traffic
conditions first before operating system controls
while driving. Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is covering
a distance of approximately 50 feet (approximately
14 m ) e v e r y s e c o n d .
Wa r n i n g !
Any alternations made to electronic components
can cause malfunctionsThe radio, cassette deck, CD changer
1 and
telephone
1 are interconnected. Therefore, when
one of the components is defective or has not been
removed/replaced properly this may impair the
function of other components.
These malfunctions might seriously impair the
operating safety of your vehicle.We recommend that you have any service work or
alternations on electronic components done in an
authorized Mercedes-Benz Center.

99 Audio system
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Operating and display elements
1On/off, volume, see page 102
2Telephone mode selector, see page 113
3Seek, see page 104, 107 and 111
4Radio mode selector, see page 104
5Tune, see page 104 and 105
Fast Forward/Reverse, see page 108 and 111
6CD mode selector, see page 1107Display panel, see page 106
8Alpha-numeric keypad for
station storage and frequency entry, see page 105
optional telephone, see page 113
Tape eject, see page 107
Tape track select, see page 107
Dolby, see page 108
CD Random/repeat, see page 112
9Function button, see page 105 and 112

100 Audio system
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
10Soft keys for
radio band selection, see page 104
tone controls, see page 102
scan, see page 105
11Tape mode selector, see page 106
Anti-theft system
If the power supply to the
radio has been
interrupted,“CODE” will
appear on the display when it
is next switched on. The radio
will only work after the five-digit code has been entered
using the buttons on the right-hand control panel.The code number is shown on the Radio code card,
supplied with the radio.
Important!
Never leave the Radio code card in the vehicle. Keep it in
a safe place.

101 Audio system
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Entering the code number
Switch on the radio.“CODE” will appear on the display.
Using the buttons on the alpha-numeric keypad, enter
the five digit code. Confirm by pressing the “OK” key.
If an incorrect code has been entered and confirmed,
“CODE” will reappear on the display. The correct code
must be entered once again.
If an incorrect code is entered
three times, “WAIT” will
appear on the display and the
radio will be locked out for
about 10 minutes.
Note:
Th e lock out time w il l only cou nt d own if th e ra dio is le ft
switched on.Button and soft key operation
In these instructions, the alpha-numeric keypad (right
side of radio face) and the function buttons (left side of
the radio face) are referred to as “buttons” and the four
keys under the display are referred to as “soft keys”
Note:
Do not press directly on the radio display face.

102 Audio system
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Operation
Switching on and off
Press the control knob .
Th e ra dio is switch ed of f wh en the ignition key is tu rned
to position 0 or removed from the ignition. The radio is
switched on again when the ignition key is turned to
position 1 or 2.
Note:
The radio can also be switched on even if the ignition
key is not inserted, but will switch itself off
automatically after one hour to conserve vehicle battery
power.
Adjusting the volume
Turn the control knob - Turning the knob clockwise will
increase the volume, counterclockwise will decrease the
volume.Audio functions
The AUD key is used to select the BASS, TREBLE and
BALANCE functions. Settings for bass and treble are
stored separately for the radio, cassette and CD modes.
Tone level settings are identified by the vertical bars.
The center (flat) setting is shown by one longer bar in
the center of the display.
Bass
Press the AUD key repeatedly
until “BASS” appears in the
display.
Treble
Press the AUD key repeatedly
until “TREBLE” appears in th e
display.
Press the “+” key to increase
or the “-” key to decrease the level.

103 Audio system
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Balance
Press the AUD key repeatedly
until “BALANCE” appears in
the display.
Press the “L” key to move the
sound to the left speaker or the “R” key to move the
sound to the right speaker.
1 not available on all models
Centering all audio functions
Push and hold down the
“AUD” key. All audio
functions (bass, treble,
balance and fader) are set to
center or flat positions, and
the volume is adjusted to a pre-set level.

104 Audio system
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Radio mode
Selecting radio mode
Press button.
Selecting the band
Press the key located below
the desired band. The band
selected is shown in the top
line of the display.Manual tuning
Press either the or
button. Step-by-step tuning in
ascending or descending
order of frequency will take
place.
The first three tuning steps will take place without
muting. The radio will then be muted and high-speed
tuning will take place until the button is released.
The following tuning intervals will be shown on the
display:
Seek tuning
Press either the or button. The radio will tune
to the next receivable station. F r e q u e n c y r a n g e s : F M 8 7. 9 - 10 7. 9 M H z
AM 530 - 1710 kHz
WB approx. 162 MHz
FM 200 kHz
AM 10 kHz
WB Channels 1-7