2006 MERCEDES-BENZ CLK COUPE technical data

ContentsTowing the vehicle ............................. 432
Towing the vehicle........................ 432
Installing towing eye bolt.............. 434
Fuses ................................................. 436
Aids for replacing fuses ................ 436
Main fuse box in passenger
compartment................................ 437
Fuse box in engine compartment . 437
Fuse box in trunk.......................... 438
Technical data................................. 439
Parts service ...................................... 440
Warranty coverage............................. 441
Loss of Service and Warranty
Information Booklet ..................... 441
Identification labels ........................... 442
Layout of poly-V-belt drive ................. 443
CLK 350 ....................................... 443
CLK 500 ....................................... 443
Engine................................................ 444
Rims and tires.................................... 445
Same size tires ............................. 447
Mixed size tires ............................ 448
Minispare wheel ........................... 449
Electrical system ............................... 450
Main dimensions and weights............ 451
Main dimensions .......................... 451
Weights ........................................ 451Fuels, coolants, lubricants, etc. ......... 452
Capacities .................................... 452
Engine oils ................................... 454
Engine oil additives ...................... 454
Air conditioning refrigerant .......... 454
Brake fluid.................................... 454
Premium unleaded gasoline ......... 455
Fuel requirements ........................ 455
Gasoline additives ........................ 456
Coolants ...................................... 457
Windshield washer system and
headlamp cleaning system*......... 459
Technical terms............................... 461Index................................................. 467

14 IntroductionWhere to find itThis Operator’s Manual is designed to pro-
vide comprehensive support information
for you, the vehicle operator. 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
Here you will find descriptions of the safety
and security features of 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
vehicle.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 Maintenance Booklet
Separate operating instructions will be
provided as required depending on the
equipment options installed in your
vehicle.

16 IntroductionOperating 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
standards
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
interconnected, any modifications made
may produce an undesired effect on other
systems. Electronic malfunctions could
seriously impair the operating safety of your
vehicle.
See an authorized Mercedes-Benz Center
for repairs or modifications to electronic
components.
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
never turn off the engine while driving.
Warning!
G
Heavy blows against the vehicle underbody
or tires / wheels, for example when running
over an obstacle, road debris or a pothole,
may cause serious damage to and impair the
operating safety of your vehicle. If you feel a
sudden significant vibration or ride distur-
bance, or you suspect that damage to your
vehicle has occurred, you should turn on
your hazard warning flashers, carefully slow
down, and drive with caution to an area
which is a safe distance from the road.
Inspect the vehicle underbody and
tires / wheels for possible damage. If the
vehicle appears unsafe, have it towed to the
nearest authorized Mercedes-Benz Center
or other qualified maintenance or repair
facility for further inspection or repairs.
Warning!
G
Various warning labels are attached to your
vehicle. These warning labels are intended
to make you and others aware of various
risks. You should not remove any of these
warning labels unless explicitly instructed to
do so by information on the label itself.
Removal of any of these labels may cause
you and others to be unaware of certain
risks which may result in an accident and/or
personal injury.

310 OperationEngine compartmentChecking engine oil level with the con-
trol system, CLK 500
When checking the oil level

the vehicle must be parked on level
ground


with the engine at operating tempera-
ture, the vehicle must have been
stationary for at least 5 minutes with
the engine turned off


with the engine not at operating tem-
perature yet, the vehicle must have
been stationary for at least 30 minutes
with the engine turned off
To check the engine oil level via the
multifunction display, do the following:

Switch on the ignition (
page 36).
The standard display (
page 148) should
appear in the multifunction display.

Press buttonk or j on the mul-
tifunction steering wheel until the fol-
lowing message is seen in the
multifunction display:One of the following messages will
subsequently appear in the multifunc-
tion display:


Engine oil level
ok


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


Add 1.5 qt.
to reach max. oil level(Canada:
1.5 liter
)


Add 2.0 qt.
to reach max. oil level(Canada:
2.0 liter
)

If necessary, add engine oil.
For adding engine oil, see (
page 312).
For more information on engine oil, see the
“Technical data” section (
page 452) and
(
page 454).
Other display messages
If the SmartKey is not turned to position2
in the starter switch, the following
message will appear:
Turn on ignition
to see engine oil level
Switch on the ignition (
page 36).
iIf you want to interrupt the checking
procedure, press thek orj
button on the multifunction steering
wheel.

313 Operation
Engine compartment
CLK 3501Filler capCLK 5001Filler cap

Unscrew filler cap1 from filler neck.

Add engine oil as required.
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.

Screw filler cap1 back on filler neck.
More information on engine oil can be
found in the “Technical data” section
(
page 452) and (
page 454).
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.
!Excess 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.

314 OperationEngine compartmentCoolant
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
compartment.
1Coolant expansion tank
2Cap

Using a rag, turn cap 2 slowly
approximately one half turn counter-
clockwise to release any excess pres-
sure.

Continue turning the cap 2 counter-
clockwise and remove it.
The coolant level is correct if the level


for cold coolant: reaches the marking
(plastic bridge) inside the reservoir


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

Add coolant as required.

Replace and tighten cap 2.
More information on coolant can be found
in the “Technical data” section
(
page 457).
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 indicator
indicates that the coolant is overheated.


Do not remove pressure cap on coolant
reservoir if the coolant temperature is
above 158°F (70°C). Allow the coolant
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.

325 Operation
Tires and wheels
Certification label
Even after careful determination of the
combined weight of all occupants, cargo
and the trailer tongue load (if applicable)
(page 325) as to not exceed the permis-
sible load limit, you must make sure that
your vehicle never exceeds the Gross Vehi-
cle Weight Rating (GVWR) and the Gross
Axle Weight Rating (GAWR) for either the
front or rear axle. You can obtain the
GVWR and GAWR from the Certification la-
bel. The Certification Label can be found
on the driver’s door B-pillar, see “Technical
data” (
page 442).Gross Vehicle Weight Rating (GVWR): The
total weight of the vehicle, all occupants,
all cargo, and the trailer tongue load
(
page 325) must never exceed the
GVWR.
Gross Axle Weight Rating (GAWR): The to-
tal allowable weight that can be carried by
a single axle (front or rear).
To assure that your vehicle does not ex-
ceed the maximum permissible weight
limits (GVWR and GAWR for front and rear
axle), have the loaded vehicle (including
driver, passengers and all cargo and, if ap-
plicable, trailer fully loaded) weighed on a
suitable commercial scale.Trailer tongue load
The tongue load of any trailer is an impor-
tant weight to measure because it affects
the load you can carry in your vehicle. If a
trailer is towed, the tongue load must be
added to the weight of all occupants riding
and any cargo you are carrying in the
vehicle. The tongue load typically is ten
percent of the trailer weight and every-
thing loaded in it.
Your Mercedes-Benz has been designed
primarily to carry passengers and their
cargo. Mercedes-Benz does not recom-
mend trailer towing with your vehicle.

439 Technical data
Parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main dimensions and weights
Fuels, coolants, lubricants, etc.