2001 MERCEDES-BENZ C320 radio controls

Contents
IntroductionProduct information .......................... 1
Operator’s manual ............................. 2
Where to find it .................................. 7
Reporting Safety Defects .................. 9Instruments and controlsInstruments and controls ............... 12
Door control panel ....................... 14
Overhead control panel ............... 15
Dashboard ..................................... 16
Center console .............................. 18OperationVehicle keys ...................................... 22
Start lock-out .................................... 24
General notes on the
central locking system ............... 24
Central locking system ................... 25
Radio frequency and
infrared remote control ............... 25
Locking and unlocking ................ 27Choosing global or selective
mode on remote control ............. 27
Opening the trunk ....................... 28
Opening and closing windows
and sliding / pop-up roof
from outside ................................. 29
Panic button ................................. 30
Mechanical keys .......................... 30
Doors ..................................................31
Central locking switch .................... 33
Automatic central locking .............. 34
Emergency unlocking
in case of accident ...................... 34
Trunk ................................................. 35
Trunk lid release switch ................ 37
Antitheft alarm system ................... 38
Tow-away alarm ............................... 39
Easy-entry/exit feature ................... 41
Front seat adjustment ..................... 42
Removal and installation of
front seat head restraints .......... 47
Multicontour seat ............................ 49
Heated seats ..................................... 50
Rear seat head restraints ............... 52Seat belts and integrated
restraint system .......................... 55
Seat belts ........................................... 55
Seat belt nonusage
warning system ........................... 56
BabySmart
TM airbag
deactivation system .................... 62
Supplemental Restraint
System (SRS) ............................... 63
Emergency tensioning
retractor (ETR) ............................. 64
Airbags .............................................. 65
Safety guidelines for the seat
belt, emergency tensioning
retractor and airbag .................... 72
Infant and child
restraint systems ......................... 73
Steering wheel adjustment
(manual) ....................................... 77
Steering wheel adjustment
(electrical) .................................... 79
Rear view mirrors ............................ 80
Instrument cluster ........................... 88
Multifunction steering wheel,
multifunction display ................. 92

20 Contents - Operation
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
OperationVehicle keys ...................................... 22
Start lock-out .................................... 24
General notes on the
central locking system ............... 24
Central locking system ................... 25
Radio frequency and
infrared remote control ............... 25
Locking and unlocking ................ 27
Choosing global or selective
mode on remote control .............. 27
Opening the trunk ....................... 28
Opening and closing windows
and sliding / pop-up roof
from outside .................................. 29
Panic button .................................. 30
Mechanical keys ........................... 30
Doors .................................................. 31
Central locking switch .................... 33
Automatic central locking .............. 34
Emergency unlocking
in case of accident ...................... 34
Trunk ................................................. 35
Trunk lid release switch ................. 37Antitheft alarm system ................... 38
Tow-away alarm ............................... 39
Easy-entry/exit feature ................... 41
Front seat adjustment ..................... 42
Removal and installation of
front seat head restraints .......... 47
Multicontour seat ............................ 49
Heated seats ..................................... 50
Rear seat head restraints ............... 52
Seat belts and integrated
restraint system .......................... 55
Seat belts .......................................... 55
Seat belt nonusage
warning system .......................... 56
BabySmart
TM airbag
deactivation system ................... 62
Supplemental Restraint
System (SRS) ............................... 63
Emergency tensioning
retractor (ETR) ............................ 64
Airbags .............................................. 65
Safety guidelines for the seat
belt, emergency tensioning
retractor and airbag ................... 72Infant and child
restraint systems ......................... 73
Steering wheel adjustment
(manual) ....................................... 77
Steering wheel adjustment
(electrical) .................................... 79
Rear view mirrors ............................ 80
Instrument cluster ........................... 88
Multifunction steering wheel,
multifunction display ................. 92
Trip and main odometer, FSS, coolant
temperature, vehicle speed,
engine oil level indicator ........... 96
Audio systems .................................. 98
Radio .............................................. 98
CD player ....................................... 99
Cassette player ........................... 100
Telephone ........................................ 101
Navigation system .......................... 106
Trip computer ................................. 107
Malfunction/warning
message memory ...................... 109
Individual settings .......................... 111
Setting the audio volume ............. 123

22 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Ve h i c l e k e y s
Included with your vehicle are 2 electronic main keys
with integrated radio frequency and infrared remote
controls plus removable mechanical key.
The locking tabs for the mechanical key portion of the
two electronic main keys are a different color to help
distinguish it.
Wa r n i n g !
When leaving the vehicle always remove the
electronic key from the starter switch, and lock
your vehicle. Do not leave children unattended in
the vehicle, or with access to an unlocked vehicle.
Unsupervised use of vehicle equipment may cause
serious personal injury.

23 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Electronic main key
The electronic main key has an integrated radio
frequency and infrared remote control, plus removable
mechanical key.
The remote control (1) operates all locks on the vehicle.
The mechanical key (2) works only in the driver’s door,
trunk, and storage compartment locks.When using the mechanical key (2) for lock operations,
it can be removed by sliding it out of the remote control.
To do so, move locking tab (3) to the right and slide the
mechanical key (2) in direction of arrow (4).
The remote control transmitter is located in the
electronic main key.
The infrared receivers are located in the front door
handles.
Note:
Remove the mechanical key from the electronic main
key when using valet parking service. To prevent access
to trunk or storage compartments lock them separately
and retain the mechanical key.
See page 35 for separate locking of trunk and page 194
for locking of glove box.
Obtaining replacement keys
Your vehicle is equipped with a theft deterrent locking
system requiring a special key manufacturing process.
For security reasons, replacement keys can only be
obtained from your authorized Mercedes-Benz Center.
P80.35-2031-26
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25 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Central locking system
Radio frequency and infrared remote control
The electronic main key has an integrated radio
frequency and infrared remote control.
Due to the extended operational range of the remote
control, it could be possible to unintentionally lock or
unlock the vehicle by pressing the transmit button. If
one of the transmit buttons is pressed, the battery check
lamp lights up brief ly – indicating that the batteries are
in order. See page 332 for checking batteries.
The vehicle doors, trunk and fuel filler flap can be
centrally locked and unlocked via remote control.
Opening and closing the windows and sliding/pop-up
roof can only be done with the infrared portion of the
remote control. Aim transmitter eye at a receiver (6
or 7), press and hold transmit button Œ or ‹,
seepage29.
With vehicle centrally locked, the trunk can also be
opened by using the remote control.
If the electronic key is inserted in starter switch, the
vehicle cannot be locked or unlocked, and the trunk lid
cannot be opened with the remote control.1Transmit button
‹ Locking
ΠUnlocking
Š Opening trunk (if not separately locked)
2Lamp for battery check (see page 332 for changing
batteries if it does not light up briefly)
3PANIC button
4Transmitter eye
5Locking tab for mechanical key
P80.35-2032-26
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93 Multifunction steering wheel, multifunction display
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Depending on your vehicle’s equipment, you may use
the buttons on the multifunction steering wheel to call
up, control and set the following systems in the
multifunction display:
1Trip odometer and main odometer, see page 91 and
page 96
Flexible service system (FSS), see page 125
Vehicle speed, see page 96
Coolant temperature gauge, see page 124
Engine oil level indicator, see page 128
2Audio systems, see page 98
Radio, see page 98
CD player, see page 99
Cassette player, see page 1003Navigation system, see page 106
4Malfunction message memory, see page 109
5Individual settings, see page 111
6Trip computer, see page 107
After start
After reset
Fuel tank content
7Telephone, see page 101
Press the è or ÿ button repeatedly until the
required system is displayed.
The display advances by one system each time the
button is pressed.
You may call up add ition al d is plays wit hin som e of t hes e
categories by pressing the j or k button.

94 Multifunction steering wheel, multifunction display
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Note:
The displays in the multifunction display can be set to
German, English, French, Italian or Spanish language.
See the “INSTRUMENT CLUSTER” individual settings
on page 111 for instructions on changing the language
setting.
The displays for the audio systems (radio, CD player,
cassette player) will appear in English, regardless of the
language selected.
Wa r n i n g !
A driver’s attention to the road must always be his /
her primary focus when driving. For your safety and the safety of others, selecting
features through the multifunction steering wheel
should only be done by the driver when traffic and
road conditions permit it to be done safely.
Programming individual settings in the system can
only be made while the vehicle is at standstill.

98 Multifunction steering wheel, multifunction display
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Audio systems
Radio1Audio system is switched off.
2The radio is switched on.
3Wave band setting and memory location number,
where appropriate.
4Station name setting or station frequency.
5This only appears when “MEMORY” rather than
“FREQUENCY” has been selected in the Individual
settings. See page 119.
The radio must be switched on.
Press the è or ÿ button repeatedly until
display (2) appears.
Press button j or k repeatedly until the required
station or frequency is displayed.
Use the j of k button to select a stored station or
station frequency. This depends on the selection made
in the “PRESS BUTTON IN AUDIO MODUS” setting
menu. See individual settings, page 119.
Pressing the è or ÿ button displays the next or
previous system.
P54.30-3634-27