fuel cap MERCEDES-BENZ CLK320 CABRIOLET 2003 C208 Owner's Manual

3 ContentsParking brake .................................200
Driving instructions ...................... 201
Drive sensibly – save fuel ......... 201
Drinking and driving ................. 201
Pedals ........................................... 201
Power assistance ........................202
Brakes ..........................................202
Driving off ...................................203
Parking ........................................204
Tires .............................................204
Snow chains ................................207
Winter driving instructions ......207
Standing water ...........................209
Passenger compartment ...........209
Traveling abroad ........................209
Cruise control ................................. 210
Brake assist system (BAS) ............ 212
Antilock brake system (ABS) ....... 214
Electronic stability program
(ESP) ........................................... 216
What you should know at the gas
station .........................................220
Check regularly and before a long
trip ...............................................222
Instrument cluster displayMalfunction and indicator lamps in
the instrument cluster ............. 224
On-board diagnostic system Check
engine malfunction indicator
lamp ............................................. 224
Brake warning lamp .................. 225
Supplemental restraint system
(SRS) indicator lamp ................. 226
Fuel reserve and fuel cap
placement warning ................... 226
Electronic stability program (ESP)
— warning lamp .......................... 227
BAS/ESP malfunction indicator
lamp ............................................. 227
ABS malfunction indicator
lamp ............................................. 227
Telescoping steering column –
indicator lamp ............................ 228
Seat belt warning lamp ............. 228
Malfunction and indicator lamps in
the center console .................... 228
AIRBAG OFF indicator lamp .... 228
Roll bar warning lamp .............. 229Malfunction and warning messages
in the multifunction display ...230
DISPLAY DEFECTIVE (engine
control unit) ................................ 231
DISPLAY DEFECTIVE (several
systems) ....................................... 231
BATTERY/ALTERNATOR ...........232
ABS-SYSTEM ...............................233
BRAKE ASSIST ...........................233
BRAKE LINING WEAR ..............234
BRAKE FLUID .............................234
PARKING BRAKE .......................235
ENGINE FAN ...............................235
COOLANT (coolant level) ..........236
COOLANT TEMP. (coolant
temperature) ...............................237
LIGHTING SYSTEM ....................238
LIGHT SENSOR ...........................239
STEER. WHEEL ADJUST. ...........239
ENGINE OIL LEVEL ...................240
ELEC. STABIL. PROG. (Electronic
stability program) ...................... 241
REMOVE KEY ............................. 241
WASHER FLUID .........................242

5 ContentsHard plastic trim items .............305
Plastic and rubber parts ............305
Wind screen ...............................305
Rubber weatherstrip .................305
Soft top .........................................306
Technical dataSpare parts service ....................... 308
Warranty coverage ........................ 308
Identification labels ...................... 309
Layout of poly-V-belt drive ............ 310
Technical data ................................. 311
Fuels, coolants, lubricants etc. –
capacities .................................... 316
Engine oils ....................................... 318
Engine oil additives ....................... 318
Air conditioner refrigerant ........... 318
Brake fluid ....................................... 318
Premium unleaded gasoline ......... 319
Fuel requirements ......................... 319
Gasoline additives ......................... 320
Coolants .......................................... 320
Consumer information ................. 322
IndexIndex ................................................324

79 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Push buttonsVandWfor intensity of instrument
lamps, see page 81
2Push buttonJ for resetting trip odometer, see
page 83, or to acknowledge a malfunction or
warning message, see page 100.
3Coolant temperature gauge, see page 82
4Fuel gauge with reserve and fuel cap placement
warning lamp, see page 226
5Outside temperature indicator, see page 82
6Left turn signal indicator lamp, see combination
switch on page 113
7ESP warning lamp, see page 2278Speedometer
9Trip odometer, see page 83
10Main odometer, see page 88
11Multifunction indicator, see page 84
or FSS indicator, see page 105
or engine oil level indicator, see page 108
12Right turn signal indicator lamp, see combination
switch on page 113
13Tachometer, see page 83
14Gear range indicator display, see selector lever
positions on page 194
15Clock, see page 102

80 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Indicator lamps in the instrument cluster
High beam
ABS malfunction, see page 227
Brake fluid low (except Canada),
seepage225
Parking brake engaged, see page 225
Brake fluid low (Canada only),
seepage225
Parking brake engaged, see page 225
BAS malfunction, see page 227
ESP malfunction, see page 227 and 241
ESP. Adjust driving to road condition,
seepage216
Fasten seat belts, see page 228Telescoping steering column not locked,
seepage228
SRS malfunction, see page 226
If the “CHECK ENGINE” malfunction
indicator lamp comes on when the engine is
running, it indicates a malfunction of the
fuel management system, emission control
system, systems which impact emissions, or
the fuel cap is not closed tight. In all cases,
we recommend that you have the
malfunction checked as soon as possible,
seepage224.
Function indicator lamp on the center console
Front passenger airbag automatically
switched off, see page 59.
ABSBRAKEBAS
ESP
SRSCHECK
ENGINE

220 What you should know at the gas station
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
What you should know at the gas station
Fuel supplyOpen flap by pushing near front (arrow). Turn fuel cap
to the left and hold on to it until possible pressure in
tank has been released, then remove cap. Failure to
remove slowly could result in personal injury.
Manual release of fuel filler flap, see page 296.
Fuel
To prevent fuel vapors from escaping into open air, fully
insert filler nozzle unit. Only fill fuel tank until the filler
nozzle unit cuts out – do not top up or overfill.
Leaving the engine running and the fuel cap open can
cause the “CHECK ENGINE” lamp to illuminate.
Fuel tank capacity approx. 16.4 US gal (62.0 l).
This includes approx. 2.1 US gal (8.0 l) reserve. Use
premium unleaded gasoline: Posted Octane Index 91
(Average of 96 RON/86 MON).
Wa r n i n g !
Gasoline is highly flammable and poisonous. It
burns violently and can cause serious injury.
Whenever you are around gasoline, avoid inhaling
fumes and skin contact, extinguish all smoking
materials. Never allow sparks, flame or smoking
materials near gasoline!
Wa r n i n g !
Overfilling of fuel tank may result in creating
pressure in the system which could cause a gas
discharge such as the gas spraying back out upon
removing the filler nozzle which could cause
personal injury.

223
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Instrument cluster displayMalfunction and indicator lamps in
the instrument cluster .............224
On-board diagnostic system Check
engine malfunction indicator
lamp ..............................................224
Brake warning lamp ..................225
Supplemental restraint system
(SRS) indicator lamp ..................226
Fuel reserve and fuel cap
placement warning ....................226
Electronic stability program (ESP)
— warning lamp ..........................227
BAS/ESP malfunction indicator
lamp ..............................................227
ABS malfunction indicator
lamp ..............................................227
Telescoping steering column –
indicator lamp .............................228
Seat belt warning lamp .............228Malfunction and indicator lamps in
the center console .................... 228
AIRBAG OFF indicator lamp .... 228
Roll bar warning lamp .............. 229
Malfunction and warning messages
in the multifunction display ... 230
DISPLAY DEFECTIVE (engine
control unit) ................................ 231
DISPLAY DEFECTIVE (several
systems) ...................................... 231
BATTERY/ALTERNATOR .......... 232
ABS-SYSTEM .............................. 233
BRAKE ASSIST ........................... 233
BRAKE LINING WEAR .............. 234
BRAKE FLUID ............................ 234
PARKING BRAKE ....................... 235
ENGINE FAN ............................... 235
COOLANT (coolant level) ......... 236
COOLANT TEMP. (coolant
temperature) ............................... 237LIGHTING SYSTEM ....................238
LIGHT SENSOR ...........................239
STEER. WHEEL ADJUST. ...........239
ENGINE OIL LEVEL ...................240
ELEC. STABIL. PROG. (Electronic
stability program) ...................... 241
REMOVE KEY ............................. 241
WASHER FLUID .........................242
TELE AID .....................................243

224 Malfunction and indicator lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Malfunction and indicator lamps
in the instrument cluster
General information:
If a bulb in the instrument cluster fails to light up
during the bulb self-check when turning the electronic
key in steering lock to position 2, have it checked and
replaced if necessary.
On-board diagnostic system
Check engine malfunction indicator lamp
Engine malfunction indicator lamp. If the
“CHECK ENGINE” malfunction indicator
lamp comes on when the engine is running,
it indicates a malfunction of the fuel management
system, emission control system, systems which impact
emissions, or the fuel cap is not closed tight (check the
fuel cap). If the “CHECK ENGINE” lamp is illuminated
continuously and the vehicle is driving normally, you
may still drive the vehicle, however, in all cases, we
recommend that you have the system checked at your
authorized Mercedes-Benz Center as soon as possible.
If the “CHECK ENGINE” lamp comes on continuously
and / or the vehicle is not driving normally (e.g.
malfunction of the fuel management system or running out of fuel), serious damage can occur to the emission
system. Please contact your authorized Mercedes-Benz
Center immediately.
The Sequential Multiport Fuel Injection (SFI) control
module monitors emission control components that
either provide input signals to or receive output signals
from the control module. Malfunctions resulting from
interruptions or failure of any of these components are
indicated by the “CHECK ENGINE” malfunction
indicator lamp in the instrument cluster and are
simultaneously stored in the SFI control module.
If the “CHECK ENGINE” malfunction indicator lamp
comes on, have the system checked at your authorized
Mercedes-Benz Center as soon as possible.
With some exceptions, the control module switches off
the “CHECK ENGINE” malfunction indicator lamp if the
condition, causing the lamp to come on, no longer exists
during three consecutive cycles. See also page 226 for
fuel cap placement warning.
An on-board diagnostic connector is located in the
passenger compartment near to the parking brake
pedal, allowing the accurate identification of system
malfunctions through the readout of diagnostic trouble
codes.
CHECK
ENGINE

226 Malfunction and indicator lamps
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Supplemental restraint system (SRS) indicator lamp
The operational readiness of the airbag
system is verified by the indicator lamp
“SRS” in the instrument cluster when
turning the electronic key in steering lock to position 1
or 2. If no malfunction is detected, the lamp will go out
after approximately 4 seconds; after the lamp goes out,
the system continues to monitor the components and
circuitry of the airbag system and will indicate a
malfunction by coming on again.
See page 61 for notes on airbags, see page 60 for belt
tensioners and page 69 for infant and child seat
restraint.Fuel reserve and fuel cap placement warning
When the warning lamp (1) comes on after starting the
engine, or if it comes on while driving, it indicates that
the fuel level is down to the reserve quantity of
approximately 2.1 gal (8 liters).
The warning lamp blinks when the fuel cap is not
closed, or a fuel system leak has been detected.
Retighten cap and see if lamp goes out after restart and
next OBD selfcheck.
If the warning lamp continues to blink after closing the
fuel cap correctly, have the fuel system checked at your
authorized Mercedes-Benz Center as soon as possible.
Leaving the engine running and the fuel cap open can
also cause the “CHECK ENGINE” lamp to illuminate, see
page 224.
Wa r n i n g !
In the event a malfunction of the “SRS” is indicated
as outlined above, the “SRS” may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have the
system checked; otherwise the “SRS” may not be
activated when needed in an accident, which could
result in serious or fatal injury, or it might deploy
unexpectedly and unnecessarily which could also
result in injury.SRS
1
P54.30-4557-21

269 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index The pressures listed for light loads are minimum values
offering high driving comfort.
Increased inflation pressures listed for heavier loads
may also be used for light loads. These higher pressures
produce favorable handling characteristics. The ride of
the vehicle, however, will be somewhat harder. Never
exceed the max. values or inflate tires below the min.
values listed in the fuel filler flap.
Tire temperature and pressure increase with the vehicle
speed. Tire pressure should therefore only be checked
and corrected on cold tires. Correct tire pressure in
warm tires only if pressure has dropped below the
pressure listed in the table and the respective operating
conditions are taken into consideration.
An underinflated tire due to a slow leak (e.g. due to a
nail in the tire) may cause damage such as tread
separation, bulging etc.. Regular tire pressure checks
(including the spare tire) at intervals of no more than
14 days are therefore essential.If a tire constantly loses air, it should be inspected for
damage.
The spare tire should be checked periodically for
condition and inflation. Spare tire will age and become
worn over time even if never used, and thus should be
inspected and replaced when necessary.
Wa r n i n g !Do not overload the tires by exceeding the specified
vehicle capacity weight (as indicated by the label
on the driver’s door latch post). Overloading the
tires can overheat them, possibly causing a
blowout.
Follow recommended inflation pressures.
Do not overinflate tires. Overinflated tires can
result in sudden deflation (blowout) because they
are more likely to become punctured or damaged
by road debris, potholes etc.
Do not underinflate tires. Underinflated tires wear
unevenly, adversely affect handling and fuel
economy, and are more likely to fail from being
overheated.

307
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Technical dataSpare parts service ........................308
Warranty coverage .........................308
Identification labels .......................309
Layout of poly-V-belt drive ............ 310
Technical data ................................ 311
Fuels, coolants, lubricants etc. –
capacities ................................... 316
Engine oils ...................................... 318Engine oil additives ....................... 318
Air conditioner refrigerant ........... 318
Brake fluid ....................................... 318
Premium unleaded gasoline ......... 319
Fuel requirements ......................... 319
Gasoline additives ......................... 320
Coolants .......................................... 320
Consumer information ................. 322