2003 MERCEDES-BENZ C230 COUPE key battery

Contents
Air recirculation mode .................. 154
Charcoal filter .............................. 156
Rear window defroster ................. 156
Air conditioning ............................ 157
Residual heat and ventilation* ..... 158
Rear passenger compartment
adjustable air vents ...................... 158
Audio system ..................................... 159
Audio and telephone, operation ... 159
Operating safety ........................... 159
Operating and display elements ... 160
Button and soft key operation ...... 162
Operation ..................................... 162
Radio mode .................................. 165
Cassette mode ............................. 168
CD changer* operating mode ...... 172
Telephone* operation .................. 176
Power windows .................................. 182
Opening and closing the windows 182
Synchronizing power windows ..... 184
Panorama sliding/pop-up roof* ......... 185
Opening and closing the
sunshades for the panorama
sliding/pop-up roof ...................... 185
Opening and closing the panorama
sliding/pop-up roof ...................... 186Synchronizing the panorama
sliding / pop-up roof ..................... 188
Driving systems ................................. 189
Cruise control .............................. 189
Loading .............................................. 192
Roof rack* ................................... 192
Luggage cover ............................. 192
Split folding rear bench seat ......... 192
Loading instructions .................... 194
Useful features .................................. 195
Interior storage spaces ................ 195
Ashtrays ....................................... 198
Cigarette lighter ........................... 199
Telephone* ................................... 200
Tele Aid* ...................................... 201
Garage door opener ...................... 209
Operation ......................................... 213
The first 1000 miles (1500km) .......... 214
Driving instructions ........................... 215
Drive sensibly – save fuel ............. 215
Drinking and driving ..................... 215
Pedals .......................................... 215
Power assistance .......................... 216
Brakes........................................... 216Driving off .....................................217
Parking .........................................217
Tires ..............................................218
Hydroplaning ................................ 219
Tire traction ..................................219
Tire speed rating ...........................219
Winter driving instructions ............220
Standing water .............................221
Passenger compartment ...............221
Driving abroad ..............................221
Control and operation of radio
transmitter ....................................222
Catalytic converter .......................222
Emission control ...........................223
Coolant temperature ....................223
At the gas station ...............................224
Check regularly and before a
long trip ........................................225
Engine compartment .......................... 226
Hood .............................................226
Engine oil ......................................227
Transmission fluid level ................229
Coolant level .................................229
Battery ..........................................231
Windshield washer system and
headlamp cleaning system ...........232

31 Getting started
Unlocking
Starter switch positionsStarter switch0For removing key
The steering is locked when the key is
removed from the starter switch. If
necessary, move steering wheel slight-
ly to allow the locking mechanism to
engage.
1Power supply to some electrical con-
sumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position
3Starting position
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch and lock
the vehicle. Do not leave children unattend-
ed in the vehicle, or with access to an un-
locked vehicle. Unsupervised use of vehicle
equipment may cause an accident and/or
serious personal injury.iVehicles with automatic transmission:
The SmartKey can only be removed
from the starter switch with the gear
selector lever in positionP.
!If the key is left in the starter switch
position0 for an extended period of
time, it can no longer be turned in the
starter switch.

Remove the key from the starter
switch and reinsert.
If the key can still not be turned, the
battery may not be sufficiently
charged.


Check the battery and charge it if
necessary (
page 294).


Get a jump start (
page 297).
To prevent accelerated battery dis-
charge and a possible dead battery, al-
ways remove the key from the starter
switch.

45 Getting started
Driving

Turn the key in the starter switch to
position3. Release only when the en-
gine is firing regularly (
page 31).
More information can be found in the
“Controls in detail” section (page 130).
Automatic transmission*
Gearshift pattern for automatic
transmissionPPark position with selector lever lock
RReverse gear
NNeutral
DDrive position

Make sure that the gear selector lever
is set toP.

Do not depress accelerator.
Starting

Turn the key in the starter switch to
position3 and hold until the engine
starts (
page 31).

Depress the brake pedal.
The selector lever lock is released.
For information on turning off the engine
with the key see “Turning off the engine”
(
page 52)Starting difficulties
If the engine does not start as described,
carry out the following steps:

Turn key in starter to position0 and re-
peat starting procedure.
Remember that extended starting at-
tempts can drain the battery

Get a jump start (
page 297).
If the engine does not start after several
starting attempts, there could be a mal-
function in the engine electronics or in the
fuel supply system.

Notify an authorized Mercedes-Benz
Center.
iYou can also use the “touch-start”
function. Turn the key to position3 and
release it again immediately. The en-
gine then starts automatically.

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.

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.

158 Controls in detailAutomatic climate control* (Canada only)Residual heat and ventilation*
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 starter switch to
position1 o r r e m ov e i t f r o m t h e s t a r t e r
switch.

Press button
T
(page 151)
The indicator lamp on button
T

comes on.
Deactivating

Press button
T
(page 151).
The indicator lamp on button
T

goes off.
The residual heat is automatically turned
off:


when the ignition is switched on


after about 30 minutes


if the battery voltage drops
Rear passenger compartment adjust-
able air ventsAdjusting the air volume

Turn thumbwheel2.
iHow 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
setting1 regardless of the air distribu-
tion control setting.
Item
1
Left center air vent
2
Thumbwheel
3
Right center air vent
4
Air vent, closed
5
Air vent, opened
6
BloweriFour blower speeds are available.
The temperature at the air vents for
rear passenger compartment1 and3
is the same as at the dashboard center
air vents.