ECU MERCEDES-BENZ CLK430 CABRIOLET 2003 C208 Owner's Manual

2 ContentsMultifunction steering wheel,
multifunction display ................. 84
Trip and main odometer and sub
menu ............................................. 88
Audio systems .................................. 89
Radio .............................................. 89
CD player ....................................... 90
Cassette player ............................. 91
Telephone .......................................... 92
Telephone book ............................ 92
Redialing ....................................... 94
Incoming call ................................ 96
Navigation system ............................ 97
Trip computer ................................... 98
Malfunction/warning message
memory ...................................... 100
Individual settings ......................... 102
Setting the audio volume .............. 104
Flexible service system (FSS) ...... 105
Engine oil level indicator .............. 108
Engine oil consumption ................ 109
Exterior lamp switch ......................110
Night security illumination ..........111
Headlamp cleaning system .......... 112Combination switch ....................... 113
Hazard warning flasher switch .... 115
Automatic climate control ............. 116
Display and controls .................. 118
Basic setting ................................ 118
Economy ....................................... 119
Special settings ........................... 119
Rear window defroster .............. 120
Air recirculation .........................121
Residual engine heat
utilization .....................................121
Dust filter .................................... 122
Audio and telephone, operation .. 123
Power windows .............................. 142
Interior lighting ............................. 145
Sun visors ....................................... 146
Illuminated vanity mirrors .......... 146
Interior ............................................ 147
Storage compartments, armrest and
cup holder .................................. 147
Glove box ..................................... 147
Ashtray .............................................150
Lighter .............................................. 151
Cargo tie down rings .....................152Parcel net in front passenger
footwell ....................................... 152
Armrest, rear bench ...................... 152
Telephone, general ........................ 153
Cellular telephone ......................... 153
Garage door opener ....................... 154
Soft top ............................................ 158
Wind screen .................................... 166
Roller blind (horizontal) ............... 170
Roller blind (vertical) .................... 171
DrivingControl and operation of radio
transmitters ............................... 174
The first 1 000 miles
(1 500 km) ................................. 175
Maintenance ................................... 175
Catalytic converter ........................ 176
Emission control ............................ 177
Tele Aid ........................................... 178
Steering lock ................................... 188
Starting and turning off the
engine ......................................... 190
Automatic transmission ............... 191

21
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Navigation system ............................ 97
Trip computer ................................... 98
Malfunction/warning message
memory ...................................... 100
Individual settings ......................... 102
Setting the audio volume .............. 104
Flexible service system (FSS) ...... 105
Engine oil level indicator .............. 108
Engine oil consumption ................ 109
Exterior lamp switch ......................110
Night security illumination ..........111
Headlamp cleaning system .......... 112
Combination switch .......................113
Hazard warning flasher switch ....115
Automatic climate control .............116
Display and controls ...................118
Basic setting .................................118Economy ....................................... 119
Special settings ........................... 119
Rear window defroster .............. 120
Air recirculation .........................121
Residual engine heat
utilization .....................................121
Dust filter .................................... 122
Audio and telephone, operation .. 123
Power windows .............................. 142
Interior lighting ............................. 145
Sun visors ....................................... 146
Illuminated vanity mirrors .......... 146
Interior ............................................ 147
Storage compartments, armrest and
cup holder .................................. 147
Glove box ..................................... 147Ashtray ............................................ 150
Lighter ............................................. 151
Cargo tie down rings ..................... 152
Parcel net in front passenger
footwell ....................................... 152
Armrest, rear bench ...................... 152
Telephone, general ........................ 153
Cellular telephone ......................... 153
Garage door opener ....................... 154
Soft top ............................................ 158
Wind screen .................................... 166
Roller blind (horizontal) ............... 170
Roller blind (vertical) .................... 171

23 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Electronic key
The electronic 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 glove box lock.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 key.
The infrared receivers are located in the door handles.
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
1
3
4
2

45 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Important!
Prior to operating the vehicle, the driver should adjust
the seat height for proper vision as well as fore/aft
placement and backrest angle to insure adequate
control, reach, operation, and comfort. The head
restraint should also be adjusted for proper height. See
also airbag section on page 61 for proper seat
positioning.
In addition, also adjust the steering wheel to ensure
adequate control, reach, operation, and comfort.
Both the inside and outside rear view mirrors should be
adjusted for adequate rearward vision.
Fasten seat belts. Infants and small children should be
seated in a properly secured restraint system that
complies with U.S. Federal Motor Vehicle Safety
Standards 213 and 225 and Canadian Motor Vehicle
Safety Standards 213 and 210.2.
All seat, head restraint, steering wheel, and rear view
mirror adjustments as well as fastening of seat belts
should be done before the vehicle is put into motion.
Wa r n i n g !
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
TM compatible child seat,
which operates with the BabySmart
TM system
installed in the vehicle to deactivate the passenger
side front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury can result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in back seats
and be seated in an appropriate infant or child
restraint system, which is properly secured with
the vehicle's seat belt or lower anchors, fully in
accordance with the child seat manufacturer’s
instructions.A child’s risk of serious or fatal injuries is
significantly increased if the child restraints are
not properly secured in the vehicle and the child is
not properly secured in the child restraint.

53 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Seat belts
Important!
Laws i n mo st states and all Canadi an provi nc es require
seat belt use.
All U.S. states, the District of Columbia, the U.S.
territories and all Canadian provinces require the use of
child restraints that comply with U.S. Fedral Motor
Vehicle Safety Standards 213 and 225 and Canadian
Motor Vehicle Safety Standards 213 and 210.2.
For your safety and that of your passengers we strongly
recommend their use.
Wa r n i n g !
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
TM compatible child seat,
which operates with the BabySmart
TM system
installed in the vehicle to deactivate the passenger
side front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury will result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in back seats
and be seated in an appropriate infant or child
restraint system, which is properly secured with
the vehicle's seat belt or lower anchors, fully in
accordance with the child seat manufacturer’s
instructions.A child’s risk of serious or fatal injuries is
significantly increased if the child restraints are
not properly secured in the vehicle and the child is
not properly secured in the child restraint.

58 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
• Pregnant women should also use a lap-
shoulder belt. The lap belt portion should be
positioned as low as possible on the hips to
avoid any possible pressure on the abdomen.• Never place your feet on the instrument panel
or on the seat. Always keep both feet on the
floor in front of the seat.Wa r n i n g !
USE CHILD RESTRAINTS PROPERLY.Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
TM compatible child seat,
which operates with the BabySmart
TM system
installed in the vehicle to deactivate the passenger
front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury will result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in back seats
and be seated in an appropriate infant or child
restraint system, which is properly secured with
the vehicle's seat belt or lower anchors, fully in
accordance with the child seat manufacturer’s
instructions.A child’s risk of serious or fatal injuries is
significantly increased if the child restraints are
not properly secured in the vehicle and the child is
not properly secured in the child restraint.Children too big for child restraint systems must
ride in back seats using regular seat belts. Position
shoulder belt across chest and shoulder, not face or
neck. A booster seat may be necessary to achieve
proper belt positioning.

69 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Infant and child restraint systems
We recommend all infants and children be properly re-
strained at all times while the vehicle is in motion. All
lap-shoulder belts except the driver’s seat belt have
special seat belt devices for secure fastening of child
restraints.
To activate, pull shoulder belt out completely and let it
retract. During the seat belt retraction a ratcheting
sound can be heard to indicate that the special seat belt
device is activated. The belt is now locked.
To deactivate, release seat belt buckle and let seat belt
retract completely. The seat belt can again be used in
the usual manner.Important!
The use of infant or child restraints is required by law in
all 50 states, the District of Columbia, the U.S. territories
and all Canadian provinces.
Infants and small children should be seated in an
appropriate infant or child restraint system properly
secured by a lap-shoulder belt or, if so equipped, a child
restraint lower anchorage system that complies with
U.S. Federal Motor Vehicle Safety Standards 213 and
225 and Canadian Motor Vehicle Safety Standards 213
and 210.2.
When using any infant or child restraint system, be sure
to carefully read and follow all manufacturer’s
instructions for installation and use.
Please read and observe warning labels affixed to inside
of vehicle and to infant or child restraints.
Wa r n i n g !
Never release the seat belt buckle while vehicle is
in motion, since the special seat belt device will be
deactivated.

70 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Wa r n i n g !
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
TM compatible child seat,
which operates with the BabySmart
TM system
installed in the vehicle to deactivate the passenger
front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury can result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in back seats
and be seated in an appropriate infant or child
restraint system, which is properly secured with
the vehicle’s seat belt or lower anchors, fully in
accordance with the child seat manufacturer’s
instructions.Infants and small children should never share a
seat belt with another occupant. During an
accident, they could be crushed between the
occupant and seat belt.
Children too big for child restraint systems must
ride in back seats using regular seat belts. Position
shoulder belt across chest and shoulder, not face or
neck. A booster seat may be necessary to achieve
proper belt positioning for children from 41 lbs.
until they reach a height where a lap/shoulder belt
fits properly without a booster.When the child restraint is not in use, remove it
from the vehicle or secure it with the seat belt to
prevent the child restraint from becoming a
projectile in the event of an accident.Do not leave children unattended in the vehicle;
even if the children are secured in a child restraint
system. Unsupervised children in a child restraint
system may use vehicle equipment and may cause
an accident and/or serious personal injury.

72 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Wa r n i n g !Children too big for child restraint systems must
ride in back seats using regular seat belts. Position
shoulder belt across chest and shoulder, not face or
neck. A booster seat may be necessary to achieve
proper belt positioning for children from 41 lbs.
until they reach a height where a lap/shoulder belt
fits properly without a booster.Install child seat according to manufacturer’s
instructions.The child seat must be firmly attached in the right
and left side anchors (2).An incorrectly mounted child seat may come loose
during an accident which could result in serious
injury or death to your child.Damaged or impact damaged child seats or child
seat mounting fittings must be replaced.Do not leave children unattended in the vehicle,
even if the children are secured in a child restraint
system.

111 Exterior lamp switch
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Notes:
With the electronic key removed and the driver’s door
open, a warning sounds and the message “SWITCH OFF
LIGHTS” in the multifunction indicator appears if the
vehicle’s exterior lamps (except standing lamps) are not
switched off.
Fog lamps will operate with the parking lamps and/or
the low beam headlamps on. Fog lamps should only be
used in conjunction with low beam headlamps. Consult
your State or Province Motor Vehicle Regulations
regarding allowable lamp operation.
Fog lamps are automatically switched off when the
exterior lamp switch is turned to position D.Daytime running lamps (Canada only)
When the engine is running and the selector lever is in
a driving position, the low beam headlamps (includes
parking lamps, side marker lamps, taillamps and
license plate lamps) are automatically switched on.
When shifting from a driving position to position “N”
or “P”, the low beam switches off (2 seconds delay).
For nighttime driving the exterior lamp switch should
be turned to position B to permit activation of the
high beam headlamps.
Night security illumination
When exiting the vehicle after driving with the exterior
lamps on, they switch on again for added illumination
for approximately 30 seconds after closing the last door.