check engine MERCEDES-BENZ CLK320 COUPE 2003 C209 Owner's Manual

ContentsOperation......................................... 239
The first 1000 miles (1500 km) ......... 240
Driving instructions ............................ 241
Drive sensibly – save fuel ............. 241
Drinking and driving ..................... 241
Pedals .......................................... 241
Power assistance ......................... 241
Brakes .......................................... 242
Driving off..................................... 243
Parking ......................................... 243
Tires ............................................. 244
Hydroplaning ................................ 245
Tire traction .................................. 245
Tire speed rating .......................... 245
Winter driving instructions ........... 246
Standing water ............................. 247
Passenger compartment .............. 247
Driving abroad .............................. 247
Control and operation of
radio transmitters......................... 248
Catalytic converter ....................... 248
Emission control........................... 249
Coolant temperature .................... 250At the gas station .............................. 251
Check regularly and
before a long trip.......................... 252
Engine compartment ......................... 253
Hood ............................................ 253
Engine oil ..................................... 254
Transmission fluid level ................ 256
Coolant ........................................ 256
Battery ......................................... 258
Windshield washer system and
headlamp cleaning system* ......... 259
Tires and wheels ................................ 260
Important guidelines .................... 261
Life of tires ................................... 261
Direction of rotation ..................... 261
Checking tire inflation pressure ... 262
Rotating wheels ........................... 263
Winter driving .................................... 264
Winter tires .................................. 264
Block heater* ............................... 265
Snow chains ................................. 265Maintenance...................................... 266
Clearing the service indicator ...... 266
Service term exceeded ................ 266
Calling up the service indicator .... 267
Resetting the service indicator .... 267
Vehicle care....................................... 268
Cleaning and care of vehicle ........ 268

49 Getting started
Driving
Problems while driving
The engine runs erratically and misfires

An ignition cable may be damaged.


The engine electronics may not be op-
erating properly.


Unburned gasoline may have entered
the catalytic converter and damaged it.

Give very little gas.

Have the problem repaired by an au-
thorized Mercedes-Benz Center as
soon as possible.The coolant temperature is over 248°F
(120°C)
The coolant is too hot and is no longer
cooling the engine.

Stop the vehicle as soon as possible
and turn off the engine. Allow engine
and coolant to cool.

Check the coolant level and add cool-
ant if necessary (
page 256).In case of accident
If the vehicle is leaking gasoline:

Do not start the engine under any cir-
cumstances.

Notify local fire and/or police authori-
ties.
If the extent of the damage cannot be de-
termined:

Notify an authorized Mercedes-Benz
Center.
If no damage can be determined on the


major assemblies


fuel system


engine mount

Start the engine in the usual manner.

56 Safety and SecurityOccupant safety
Occupant safetyIn this section you will learn the most im-
portant facts about the restraint systems
of the vehicle.
The restraint systems are

Seat belts


Emergency tensioning device


Airbags


Child seats


Child seat recognition


Lower anchors and tethers for children
(LATCH)
As independent systems their protective
effects work in conjunction with each oth-
er.The
1
warning lamp in the instrument
cluster lights up:


for about 4 seconds when you turn the
key in the starter switch to position1
or press the KEYLESS-GO* start/stop
button once.


for about 4 seconds when you start the
engine by turning the key or pressing
the KEYLESS-GO* start/stop button.The warning lamp goes out shortly after
you start the engine. This shows that the
restraint systems are operational.
A malfunction in the system has been de-
tected, if the
1
warning lamp:


fails to extinguish after approximately
4seconds.


does not come on at all.


comes on after the engine was started
or while driving.
For safety reasons, we strongly recom-
mend that you visit an authorized
Mercedes-Benz Center immediately to
have the system checked.
More information can be found in the
“Practical hints” section (
page 278).
iFor information on infants and children
traveling with you in the vehicle and re-
straint systems for infants and chil-
dren, see “Children in the vehicle”
(page 66).
iThe warning lamp remains lit if the key
is turned to position2 and left there or
if the KEYLESS-GO* start/stop button
is pressed twice. The warning lamp will
go out when you start the engine.

118 Controls in detailControl systemMenus, submenus and functions
Menu 1
Menu 2
Menu 3
Menu 4
Menu 5
Menu 6
Menu 7
Menu 8
Commands/submenusStandard dis-
play
AUDIO
NAVI*
Distronic*
Malfunction
memory
Settings
Trip computer
Telephone
Digital speed-
ometer
Select radio
station
Activate
route guid-
ance
Call up set-
tings
Call up malfunc-
tion messages
Reset to factory
settings
Fuel consumption
statistics after
start
Load phone
book
Call up FSS
Operate CD
player*
Instrument clus-
ter submenu
Fuel consumption
statistics since
the last reset
Search for
name in
phone book
Check engine oil
level
Operate cas-
sette player
Time submenu
Call up range
Lighting sub-
menuVehicle sub-
menuConvenience
submenu

119 Controls in detail
Control system
Standard display menu
You can select the functions in the stan-
dard display menu with button
k

or
j
.
The following functions are available:
Display digital speedometer

Press the
j
or
k
button repeat-
edly until you see the digital speedom-
eter appear in the display.
The current vehicle speed is shown in
the multifunction display.
AUDIO menu
The functions in the
Audio
menu operate
the audio equipment which you currently
have turned on.
If no audio equipment is currently turned
on, the message
Audio off
i s s h ow n i n t h e
display.
The following functions are available:
iThe headings used in the menus table
are designed to facilitate navigation
within the system and are not neces-
sarily identical to those shown in the
control system displays.
The first function displayed in each
menu will automatically show you
which part of the system you are in.
Function
Page
Call up digital speedometer
see below
Call up FSS
267
Check engine oil level
254
Function
Page
Select radio station
120
Operate CD player*
120
Operate cassette player
121

146 Controls in detailAutomatic transmissionAccelerator position
Your driving style influences the transmis-
sion’s shifting behavior:
Less throttle Earlier upshifting
More throttle Later upshifting
Kickdown
Use kickdown when you want maximum
acceleration.
Press the accelerator past the point of
resistance.
The transmission shifts into a lower
gear.

Ease on the accelerator when you have
reached the desired speed.
The transmission shifts up again.Emergency operation (Limp Home
Mode)
If vehicle acceleration worsens or the
transmission no longer shifts, the trans-
mission is most likely operating in limp
home (emergency operation) mode. In this
mode, only 2nd gear and reverse gear can
be activated.
Stop the vehicle.

Move selector lever toP.

Turn off the engine.

Wait at least ten seconds before re-
starting.

Move selector lever to positionD (for
2nd gear) orR.

Have the transmission checked at an
authorized Mercedes-Benz Center as
soon as possible.Steering wheel gearshift control
(Speedshift) and manual shift program
CLK 55 AMG
The CLK 55 AMG can be driven in both the
automatic and manual shift program
modes. In the manual shift program mode,
you can change the gears yourself on the
steering wheel or by using the selector le-
ver.
1Shift button
2Left button: downshift
3Right button: upshift

163 Controls in detail
Automatic climate control
Air conditioning
The air conditioning is operational while
the engine is running and cools the interior
air to the temperature set by the operator.
Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the automatic
climate control system. The air in the vehi-
cle will then no longer be cooled or dehu-
midified.
Press buttonAC
OFF
(page 155).
The indicator lamp on the
buttonAC
OFF
lights up.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.

PressAC
OFF
again (
page 155).
The indicator lamp on the
buttonAC
OFF
goes out.
The air conditioning system uses the refrig-
erant R134a. This refrigerant is free of
CFCs which are harmful to the ozone layer.
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 o v e i t f r o m t h e s t a r t e r
switch.

Press button
T
(page 155).
The indicator lamp on button
T

comes on.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.
!If theAC
OFF
button on the automatic
climate control panel starts to blink,
this indicates that the air conditioning
system is losing refrigerant. The com-
pressor has turned itself off. The air
conditioning cannot be turned on
again.
Have the air conditioning system
checked at the nearest authorized
Mercedes-Benz Center.

252 OperationAt the gas station
Check regularly and before a long trip
1Coolant level
More information on coolant can be
found in the “Operation” section on
(
page 256).
2Brake fluid (fuse box cover removed)
More information on brake fluid can be
found in the “Technical data” section
on (page 353).
3Windshield washer and headlamp
cleaning system
More information on refilling the reser-
voir can be found in the “Operation”
section on (
page 259).Engine oil level
More information on engine oil can be
found in the “Operation” section on
(
page 254).
Vehicle lighting
Check function and cleanliness.More infor-
mation on replacing light bulbs can be
found in the “Practical hints” section on
(page 316).
Tire inflation pressure
More information on tire inflate pressure
can be found in the “Operation” section on
(page 262).
Opening hood see (
page 253).
Removing fuse box cover see
(
page 337).
Exterior lamp switch see (
page 105)
iLeaving the engine running and the fuel
cap open can cause the
?
lamp to
illuminate.
More information can be found in the
“Practical hints” section (
page 280).

254 OperationEngine compartment
Closing
Let the hood drop from a height of ap-
proximately 1 ft (30 cm).
The hood will lock audibly.

Check to make sure that the hood is
fully closed.
If you can raise the hood at a point
above the headlamps, then it is not
properly closed. Open it again and let it
drop with somewhat greater force.
Engine oil
The amount of oil your engine needs will
depend on a number of factors, including
driving style. Higher oil consumption can
occur when

the vehicle is new


the vehicle is driven frequently at high-
er engine speeds
Engine oil consumption checks should only
be made after the vehicle break-in period.
Checking engine oil level
When checking the oil level the vehicle
must


be parked on level ground


be at normal operating temperature


have been stationary for at least five
minutes with the engine turned off
Warning!
G
If you see flames or smoke coming from the
engine compartment, or if the coolant tem-
perature gauge indicates that the engine is
overheated, do not open the hood. Move
away from the vehicle and do not open the
hood until the engine has cooled. If neces-
sary, call the fire department.Warning!
G
The engine is equipped with a transistorized
ignition system. Because of the high voltage
it is dangerous to touch any components (ig-
nition coils, spark plug sockets, diagnostic
socket) of the ignition system

with the engine running


while starting the engine


if ignition is “on” and the engine is
turned manually
Warning!
G
Be careful that you do not close the hood on
anyone.

255 Operation
Engine compartment
You can check the engine oil level on the
multifunction display.
Turn the key in the starter switch to
position2.
The standard display (
page 114) should
appear in the multifunction display.

Press button
k
or
j
on the
steering wheel until the following mes-
sage is seen in the multifunction dis-
play:
Engine oil level Measuring now!
Measurement correct only if veh.
level
One of the following messages will sub-
sequently appear in the indicator:

Engine oil level ok


Add 1.0 qt. to reach max. oil
level!(Canada:
1.0 liter
)


Add 1.5 qts. to reach max. oil
level!(Canada:
1.5 liters
)


Add 2.0 qts. to reach max. oil
level!(Canada:
2.0 liters
)

If necessary, add engine oil.Adding engine oil
1Filler neck

Unscrew the cap from filler neck 1. Be
careful not to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.