2003 MERCEDES-BENZ C320 COUPE door lock

46 Getting startedDrivingParking brake
1Release handle
2Parking brake

Release the parking brake by pulling on
handle1.
The indicator lamp
;
(USA only) or
3
(Canada only) in the instrument
cluster goes out.
Driving

Depress the brake pedal.

Move selector lever to positionD orR
(manual transmission: first or reverse
gear).

Release the brake pedal.

Carefully depress the accelerator
pedal.
Once the vehicle is in motion, the auto-
matic central locking system engages
and the locking knobs drop down.After a cold start, the automatic transmis-
sion engages at a higher revolution. This al-
lows the catalytic converter to reach its
operating temperature earlier.
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch and lock the ve-
hicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Children could release the parking
brake, which could result in an accident
and/or serious injury.
iYou can open a locked door from the
inside. Open door only when conditions
are safe to do so.
!If you hear a warning signal when driv-
ing off, you have forgotten to release
the parking brake.
Release the parking brake.!Simultaneously depressing the acceler-
ator pedal and applying the brake re-
duces engine performance and causes
premature brake and drivetrain wear.iVehicles with automatic transmission:
Wait for the gear selection process to
complete before setting the vehicle in
motion.

49 Getting started
Driving
Single wipe
Press switch briefly in the direction of
arrow1.
The windshield wipers wipe one time
without washer fluid.
Wiping with windshield washer fluid

Push switch in the direction of arrow1
past the resistance point.
The windshield wiper operates with
washer fluid.
iVehicles without rain sensor*: Fast
wiper speed III goes to setting II when
the vehicle is standing still.
Vehicles with rain sensor*: Intermittent
wiping interval dependent on wetness
of windshield. Wiping will not occur
with a door open.!Vehicles with rain sensor*: Do not
leave in intermittent setting when vehi-
cle is taken to an automatic car wash or
during windshield cleaning. Wipers will
operate in presence of water sprayed
on the windshield, and wipers may be
damaged as a result.
The switch should not be left in inter-
mittent setting as the wipers will wipe
the windshield once every time the en-
gine is started. Dust that accumulates
on the windshield might scratch the
glass when wiping occurs on a dry
windshield.
!If leaves, snow, etc. block the wind-
shield wipers, switch off the wipers.

For safety reasons, withdraw key
from starter switch. Remove block-
age.


Turn the windshield wipers on
again.
If windshield wipers fail to function at
all in switch positionI,


set the combination switch to the
next highest wiper speed.


have the windshield wipers
checked at the nearest authorized
Mercedes-Benz Center.

53 Getting started
Parking and locking
Turning off with the SmartKey
Turn the key in the starter switch to
position0 and remove it.
The immobilizer is activated.

Press the seat belt release button
(page 41).

After exiting the vehicle press the lock
button
‹
on the remote control
(
page 30).
The locking knobs on the doors move
down.
More information can be found in the
“Controls in detail” section (
page 82).
iVehicles with automatic transmission:
The SmartKey can only be removed
from the starter switch with the gear
selector lever in positionP.!With the SmartKey removed and the
driver’s door open, a warning sounds if
the vehicle’s exterior lamps are not
switched off.
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the door
openings when closing the doors. Be espe-
cially careful when small children are
around.
Before closing doors, make sure that there
is no possibility of someone getting caught
in a door during closing.

78 Safety and SecurityAnti-theft systems
Anti-theft systemsImmobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating

Removing the key from the starter
switch activates the immobilizer.
Deactivating


Inserting the key in the starter switch
deactivates the immobilizer.
Anti-theft alarm system*
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens

a door


the trunk lid


the hood.
The alarm will stay on even if the activating
element (a door, for example) is immedi-
ately closed.
The alarm system will also be triggered
when


someone attempts to raise the vehicle


the vehicle is opened with the mechan-
ical key.Arming the alarm system
The alarm system is armed after locking
the vehicle with the SmartKey. The turn
signal lamps blink three times to indicate
that the alarm system is activated. The in-
dicator lamp in the switch for the tow-away
alarm will blink after approximately 10 sec-
onds when the alarm system is completely
armed (
page 80).
iIn case the engine cannot be started
(yet the vehicle’s battery is charged),
the system is not operational. Contact
an authorized Mercedes-Benz Center
or call 1-800-FOR-MER-Cedes (in the
USA), or 1-800-387-0100 (in Canada).
iIf the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem* provided Tele Aid service was
subscribed to and properly activated,
and that necessary cellular service and
GPS coverage are available.iIf the turn signal lamps do not blink
three times one of the following ele-
ments may not be properly closed:

a door


the trunk lid


the hood
Close the respective element and lock
the vehicle again.

79 Safety and Security
Anti-theft systems
Disarming the alarm system
The alarm system is disarmed when you
unlock your vehicle with the SmartKey. The
turn signal lamps blink once to indicate
that the alarm system is deactivated.
Canceling the alarm
To cancel the alarm:
Insert the key in the starter switch.
or

Press the
Œ
or
‹
button.
Tow-away alarm*
Once the tow-away alarm is armed, a visual
and audible alarm will be triggered when
someone attempts to raise the vehicle.Arming tow-away alarm
When you lock your vehicle, the tow-away
alarm is automatically armed after about
30 seconds.
When you unlock your vehicle, the
tow-away protection disarms automatical-
ly.
iThe alarm system will rearm automati-
cally after approximately 40 seconds if
a door or the trunk is not opened.
iThe tow-away protection alarm is trig-
gered, for example, if the vehicle is lift-
ed on one side.
If the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem provided Tele Aid service was
subscribed to and properly activated,
and that necessary cellular service and
GPS coverage are available.

82 Controls in detailLocking and unlockingIn the “Controls in detail” section you will
find detailed information on how to oper-
ate the equipment installed on your vehi-
cle. If you are already familiar with the
basic functions of your vehicle, this section
will be of particular interest to you.
To quickly familiarize yourself with the ba-
sic functions of the vehicle, refer to the
“Getting started” section of this manual.
The corresponding page numbers are giv-
en at the beginning of each segment.
Locking and unlockingInformation on locking and unlocking can
be found in the “Getting started” section
on (
page 30) and (
page 51).
SmartKey
Your vehicle comes supplied with two
SmartKeys with remote controls and a re-
movable mechanical key. The locking tabs
for the mechanical key portion of the two
keys are a different color to help distin-
guish each key unit.
The remote control key provides an ex-
tended operating range. To prevent theft,
however, it is advisable to only unlock the
vehicle when you are in close proximity to
it.
The key centrally locks and unlocks:

the doors


the trunk lid


the fuel filler flap
SmartKey with remote controls1‹
Lock button
2Mechanical key locking tab
3
Œ
Unlock button
4Battery check lamp
5
Â
Panic button* (
page 72)
iCanada only:
Only vehicles equipped with an
anti-theft alarm system* have
SmartKeys with integrated panic
button*5.

83 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press button
Œ
.
All turn signal lamps blink once. The
locking knobs in the doors move up.
The vehicle will lock again automatically
within approximately 40 seconds of un-
locking if neither door nor trunk lid is
opened, the SmartKey is not inserted in
the starter switch, or the central locking
switch is not activated.Global locking

Press button
‹
.
All turn signal lamps blink three times.
The locking knobs in the doors move
down.
Selective setting
If you frequently travel alone, you may wish
to reprogram the key so that
pressing
Œ
only unlocks the driver’s
door and the fuel filler flap.

Press and hold buttons
Œ
and
‹

simultaneously for about five seconds
until battery check lamp4 blinks twice.
The key will then function as follows:
Unlocking driver’s door and fuel filler
flap

Press button
Œ
once.
Global unlocking

Press button
Œ
twice.
Global locking

Press button
‹
.Restoring to factory setting

Press and hold buttons
Œ
and
‹

simultaneously for about six seconds
until battery check lamp4 blinks twice.
iYou can also open and close the power
windows (
page 183) and panorama
sliding/pop-up roof (
page 185) from
outside using the SmartKey.
!To prevent possible malfunction, avoid
exposing the key to high levels of elec-
tromagnetic radiation.
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch and lock the ve-
hicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. It is possible for children to open a
locked door from the inside, which could re-
sult in an accident and/or serious injury.

84 Controls in detailLocking and unlocking
Checking the batteries
Press button
‹
or
Œ
.
Battery check lamp4 lights up briefly
to indicate that the key batteries are in
order.Loss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key,
you should do the following:

Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.

Report the loss of the SmartKey or the
mechanical key immediately to your
car insurance company.

If necessary, have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
!If you can no longer lock or unlock the
vehicle with the key, then either the
batteries in the SmartKey are dis-
charged or the key is malfunctioning or
the vehicle battery is drained.

Check the batteries in the key and
replace them if necessary
(page 276).
or


Check the vehicle battery
(page 294).
or


Use the mechanical key to unlock
the doors (
page 274) as required.
Lock the vehicle using the mechan-
ical key (
page 275).
If the key is malfunctioning, contact an
authorized Mercedes-Benz Center.
!If battery check lamp4 does not light
up briefly during check, then the key
batteries are discharged.
Replace the batteries (
page 276).
You can obtain the required batteries
at any authorized Mercedes-Benz Cen-
ter.