technical data MERCEDES-BENZ CLK320 COUPE 2003 C209 Owner's Manual

Contents
Practical hints................................. 275
What to do if …?................................. 276
Lamps in instrument cluster ........ 276
Lamp in center console................ 282
Messages in the display ............... 283
Where will I find...? ............................ 305
First aid kit ................................... 305
Vehicle tool kit ............................. 305
Minispare wheel ........................... 307
Unlocking/locking in an emergency .. 310
Unlocking the vehicle ................... 310
Locking the vehicle ...................... 311
Changing batteries ....................... 312
Fuel filler flap ............................... 313
Manually unlocking the
transmission selector lever .......... 313
Opening/closing in an emergency..... 314
Sliding/pop-up roof ..................... 314
Replacing bulbs ................................. 316
Bulbs ............................................ 316
Replacing bulbs for front lamps ... 318
Side marker lamp bulb ................. 321
Replacing bulbs for rear lamps..... 322Replacing wiper blades....................... 323
Removing ...................................... 323
Installing ....................................... 323
Flat tire ............................................... 324
Preparing the vehicle .................... 324
Mounting the Minispare wheel ...... 324
Battery................................................ 329
Disconnecting the battery............. 330
Removing the batteries ................. 330
Charging and
reinstalling batteries ..................... 330
Reconnecting the batteries ........... 331
Jump starting ...................................... 332
Towing the vehicle .............................. 334
Towing the vehicle ........................ 334
Installing towing eye bolt .............. 336
Fuses .................................................. 337
Fuse box in
passenger compartment ............... 337
Fuse box in engine compartment.. 337
Auxiliary fuse box in trunk............. 338
Technical data.................................. 339
Spare parts service ............................ 340
Warranty coverage ............................. 341
Loss of Service and Warranty
Information Booklet ...................... 341
Identification labels ............................ 342
Layout of poly-V-belt drive.................. 343
CLK320 / CLK500 /
CLK 55 AMG ................................. 343
Engine ................................................ 344
Rims and tires .................................... 345
Same size tires ............................. 345
Mixed size tires ............................. 346
Minispare wheel............................ 347
Electrical system ................................ 348
Main dimensions ................................ 349
Weights .............................................. 350

14 IntroductionWhere to find it
Where to find itThis Operator’s Manual is designed to pro-
vide comprehensive support information
for you, the vehicle operator. For you to
find information quickly each section has
its own reference color:At a glance
Here you will find an overview of all the
controls that can be operated from the
driver’s seat.Getting started
Here you will find all the information you
need for your first drive. You should read
this section first if this is your first
Mercedes-Benz vehicle or if you are rent-
ing or borrowing this vehicle.Safety and Security
H e r e y o u w i l l f i n d d e s c r i p t i o n s o f t h e s a f e t y
features in your vehicle.
Controls in detail
Here you will find detailed information
about the equipment installed in your vehi-
cle. This section expands on the “Getting
started” section and also describes techni-
cal innovations. If you are already familiar
with the basic functions of your vehicle,
this section will be of particular interest to
you.Operation
Here you will find all the information you
need for the proper operation of your vehi-
cle.Practical hints
This section provides fast assistance for
dealing with problems you may encounter.
Technical data
All important technical data for your vehi-
cle can be found in this section.Indexes
The glossary provides explanations of the
most important technical terms.
The table of contents and the index are de-
signed to help you find information quickly
and easily.
The following publications are part of your
vehicle documentation:

this Operator’s Manual


the Service Booklet
Separate operating instructions will be
provided as required depending on the
equipment options installed in your vehi-
cle.

16 IntroductionOperating safety
Operating safety
Proper use of the vehicle
Proper use of the vehicle requires that you
are familiar with the following information
and rules:

the safety precautions in this manual


the “Technical data” section in this
manual


traffic rules and regulations


motor vehicle laws and safety stan-
dards
Warning!
G
Work improperly carried out on electronic
components and associated software could
cause them to cease functioning. Because
the vehicle’s electronic components are in-
terconnected, any modification made may
produce an undesired effect on other sys-
tems.
Electronic system malfunctions could seri-
ously impair the operating safety of your ve-
hicle.
Ensure that any repairs or modifications to
electronic components are carried out by an
authorized Mercedes-Benz Center.
Other improper work or modifications on the
vehicle could also have a negative impact on
the operating safety of the vehicle.
Some safety systems only function while the
engine is running. You should therefore nev-
er turn off the engine while driving.

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).

256 OperationEngine compartment
Screw the cap back on the filler neck.
Other display messages
If there is excessive engine oil with the en-
gine at normal operating temperature, the
following message will appear:
Engine oil level Reduce oil level!
Have excess oil siphoned.
If the key is not turned to position 2 in the
starter switch:
Turn on ignition to see engine oil
level!
Switch on the ignition.If you see the message:
Observe waiting time
Wait five minutes before repeating
check procedure.
If you see the message:
Engine oil level Not when engine on! 
Turn off the engine. If engine is at nor-
mal operating temperature, wait five
minutes before checking oil. If the en-
gine is not yet at normal operating tem-
perature, you must wait 30 minutes
before checking oil.
See “Practical hints” (
page 294) if the
engine oil level indicator lights up in the
display while the engine is running.More information on engine oil can be
found in the “Technical data”
(
page 353).
Transmission fluid level
The transmission fluid level does not need
to be checked. If you notice transmission
fluid loss or gear shifting malfunctions,
have an authorized Mercedes-Benz Center
check the automatic transmission.Coolant
The engine coolant is a mixture of water
and anticorrosion/antifreeze. To check
the coolant level, the vehicle must be
parked on level ground and the engine
must be cool.
The coolant expansion tank is located on
the passenger side of the engine compart-
ment.
!Excessive oil must be siphoned or
drained off. It could cause damage to
the engine and catalytic converter not
covered by the Mercedes-Benz Limited
Warranty.
iIf you want to interrupt the checking
procedure, press the
k
or
j
but-
ton on the multifunction steering
wheel.

257 Operation
Engine compartment
1Coolant expansion tank
Using a rag, turn the cap slowly approx-
imately one half turn to the left to re-
lease any excess pressure.

Continue turning the cap to the left and
remove it.The coolant level is correct if the level


for cold coolant: reaches the black top
part of the reservoir


for warm coolant: is approx. 0.6 in
(1.5 cm) higher

Add coolant as required.

Replace and tighten cap.
More information on coolant can be found
in the “Technical data” section
(
page 355).
Warning!
G
In order to avoid any possibly serious burns:

Use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system,
or if the coolant temperature gauge indi-
cates that the coolant is overheated.


Do not remove pressure cap on coolant
reservoir if engine temperature is above
194°F (90°C). Allow engine to cool
down before removing cap. The coolant
reservoir contains hot fluid and is under
pressure.


Using a rag, slowly open the cap approx-
imately
1⁄2 turn to relieve excess pres-
sure. If opened immediately, scalding
hot fluid and steam will be blown out un-
der pressure.


Do not spill antifreeze on hot engine
parts. Antifreeze contains ethylene gly-
col which may burn if it comes into con-
tact with hot engine parts.

259 Operation
Engine compartment
Windshield washer system and headlamp cleaning system*
Fluid for the windshield washer system and
the headlamp cleaning system is supplied
from the windshield washer reservoir. It
has a capacity of approx. 6.4 US qt. (6 l).
During all seasons, add MB Windshield
Washer Concentrate “S” to water. Pre-mix
the windshield washer fluid in a suitable
container.
Refill the reservoir with MB Windshield
Washer Concentrate and water (or
commercially available pre-mixed
windshield washer solvent / antifreeze,
depending on ambient temperatures).
Always use washer solvent/antifreeze
where temperatures may fall below
freezing. Failure to do so could result in
damage to the washer system/reser-
voir.The windshield washer system on this ve-
hicle is heated, so a fluid mixture produced
for temperatures of approximately 14°F
(–10°C) should be sufficient.
More information can be found in the
“Technical data” section (
page 357).1Washer fluid reservoir
Warning!
G
Washer solvent / antifreeze is highly flam-
mable. Do not spill washer
solvent / antifreeze on hot engine parts, be-
cause it may ignite. You could be seriously
burned.
!Only use washer fluid which is suitable
for plastic lenses. Improper washer flu-
id can damage the plastic lenses of the
headlamps.

309 Practical hints
Where will I find...?
In the case of a flat tire, you may tempo-
rarily use the Minispare wheel when ob-
serving the following restrictions:

Do not exceed a vehicle speed of
50 mph (80 km/h).


Drive to the nearest tire repair facility
to have the flat tire repaired or re-
placed as appropriate.


Do not operate vehicle with more than
one Minispare wheel mounted.
More information can be found in the
“Technical data” section (
page 345).Minispare wheel bolts
1Wheel bolt for light alloy rims
2Wheel bolt for Minispare wheel or other
steel rims
!Wheel bolts2 must be used when
mounting the Minispare wheel. The use
of any wheel bolts other than wheel
bolts 2 for the Minispare will physically
damage the vehicle's brakes.
Warning!
G
Be sure to use the original length wheel
bolts when remounting the original wheel af-
ter it has been repaired.

339 Technical data
Spare parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main dimensions
Weights
Fuels, coolants, lubricants, etc.
Consumer information

340 Technical dataSpare parts serviceThe “Technical data” section provides the
necessary technical data for your vehicle.
Spare parts serviceAll authorized Mercedes-Benz Centers
maintain a stock of original spare parts re-
quired for maintenance and repair work. In
addition, strategically located parts distri-
bution centers provide quick and reliable
parts service.
More than 300 000 different spare parts
for Mercedes-Benz models are available.
Mercedes-Benz original spare parts are
subjected to stringent quality inspections.
Each part has been specifically developed,
manufactured or selected for and adapted
to Mercedes-Benz vehicles.
Therefore, Mercedes-Benz original spare
parts should be installed.
!The use of non-genuine parts and ac-
cessories not authorized by
Mercedes-Benz could damage the vehi-
cle, which is not covered by the
Mercedes-Benz Limited Warranty, or
could compromise the vehicle’s dura-
bility or safety.