2005 MERCEDES-BENZ CLK55AMG CABRIOLET fuel

380 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
:
USA only:Add 1 qt. engine oil
at next refuelingCanada only:Add 1 liter engine oil
at next refueling
The engine oil level is too low.

Add engine oil (
page 309) and check
the engine oil level (
page 307).
Engine oil level
Reduce oil level!
You have added too much engine oil.
There is a risk of damaging the engine or
the catalytic converter.

Have oil siphoned or drained off. Ob-
serve all legal requirements with re-
spect to its disposal.
Engine oil level
Stop, engine off!
There is no oil in the engine. There is a
danger of engine damage.

Carefully bring the vehicle to a halt as
soon as possible.

Turn off the engine.

Add engine oil (
page 309) and check
the engine oil level (
page 307).

381 Practical hints
What to do if …?
When the message
Add 1 qt. engine oil
at next refueling (Canada:
1 liter
) ap-
pears while the engine is running and at
operating temperature, the engine oil level
has dropped to approximately the
minimum level.When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.
Visually check for oil leaks. If no obvious oil
leaks are noted, drive to the nearest ser-
vice station where the engine oil should be
topped to the required level with an
approved oil specified in the Factory
Approved Service Products pamphlet.
Display symbol
Display message
Possible cause
Possible solution
:
Engine oil
Visit workshop!
It may be that there is water in the engine
oil.

Have the engine oil checked.
Engine oil level
Visit workshop!
The engine oil has dropped to a critical
level.

Check the engine oil level
(page 307) and add oil as required
(page 309).

If you must add engine oil frequently,
have the engine checked for possible
leaks.
The measuring system is malfunctioning.

Have the measuring system checked
by an authorized Mercedes-Benz
Center.!The engine oil level warnings should
not be ignored. Extended driving with
the symbol displayed could result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.

382 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
A
Reserve fuel
The fuel level has dropped below the re-
serve mark.

Refuel at the next gas station
(page 302).
Y
Hood open!
You are driving with the hood open.

Close the hood (
page 306).
I
Remove key
You have forgotten to remove the
SmartKey.

Remove the SmartKey from the start-
er switch.
Replace key
No additional code available for SmartKey
or SmartKey with KEYLESS-GO*.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Key
Check battery!
The SmartKey with KEYLESS-GO* batter-
ies are discharged.

Change the batteries (
page 412).
Key
not recognized!
The SmartKey with KEYLESS-GO* is not
recognized while the engine is running be-
cause

the SmartKey is not in the vehicle


there is strong radio-frequency inter-
ference

Stop the vehicle as soon as it is safe to
do so.

Search for the SmartKey.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started
again after the engine has been stopped.
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.

Change the position of the SmartKey
in the vehicle.

Operate the vehicle with the SmartKey
in the starter switch if necessary.
Keyless Go
Check system
The KEYLESS-GO* system is malfunction-
ing.

Visit an authorized Mercedes-Benz
Center as soon as possible.

399 Practical hints
Unlocking/locking in an emergency
1Locking
Insert the mechanical key into the
driver’s door lock until it stops.

Turn the mechanical key clockwise to
position1.
The driver’s door is locked.
Fuel filler flap
In case the central locking system does
not release the fuel filler flap, you can open
it manually.
The release button is on the right-hand
side of the luggage compartment behind
the side trim.

Open trunk lid.

Remove the side trim from the
right-hand side of the luggage compart-
ment.

Reach inside through opening2 in di-
rection of arrow.

Turn release knob 1 clockwise (arrow)
as far as will go.
The fuel filler flap is released and can
be opened from outside.

Open the fuel filler flap from outside.
Warning!
G
If you operate the emergency release but-
ton, be careful of the sharp edges so that
you do not injure yourself.

430 Practical hintsJump starting
If the battery is discharged, the engine can
be started with jumper cables and the bat-
tery of another vehicle. Observe the follow-
ing:

Jump starting should only be performed
when the engine and catalytic convert-
er are cold.


Do not start the engine if the battery is
frozen. Let the battery thaw out first.


Only jump start from batteries with the
same voltage rating (12 V). Jump start-
ing with a more powerful battery could
damage the vehicle’s electrical system,
which will not be covered by the
Mercedes-Benz Limited Warranty.


Only use jumper cables with sufficient
cross-section and insulated terminal
clamps.


Always make sure the jumper cables
are not on or near pulleys, fans or other
parts that move when an engine is
started or running.
Warning!
G
Failure to follow these directions will cause
damage to the electronic components, and
can lead to a battery explosion and severe
injury or death.
Never lean over batteries while connecting
or jump starting, you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water, and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and very explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking, etc.
Attempting to jump start a frozen battery
can result in it exploding, causing personal
injury.
Read all instructions before proceeding.
!Avoid repeated and lengthy starting at-
tempts.
Do not attempt to start the engine us-
ing a battery quick charge unit.
If the engine does not run after several
unsuccessful starting attempts, have it
checked at the nearest authorized
Mercedes-Benz Center.
Excessive unburned fuel generated by
repeated failed starting attempts may
damage the catalytic converter and
may present a fire risk.
Make sure the jumper cables do not
have loose or missing insulation.
Make sure the cable clamps do not
touch any other metal part while the
other end is still attached to a battery.

439 Technical data
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.

444 Technical dataEngineModel
CLK 320 (209.465)
1
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equipment.
CLK 500 (209.475)
1
CLK 55 AMG (209.476)
1
Engine
112
113
113
Mode of operation
4-stroke engine, gasoline injec-
tion
4-stroke engine, gasoline injec-
tion
4-stroke engine, gasoline injec-
tion
No. of cylinders
6
8
8
Bore
3.54 in (89.90 mm)
3.82 in (97.00 mm)
3.82 in (97.00 mm)
Stroke
3.31 in (84.00 mm)
3.31 in (84.00 mm)
3.62 in (92.00 mm)
Total piston displacement
195.2 cu in (3 199 cm
3)
303.0 cu in (4 966 cm
3)
331.8 cu in (5 439 cm
3)
Compression ratio
10:1
10:1
11:1
Output acc. to SAE J 1349
215 hp / 5 700 rpm
2
(160 kW / 5 700 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
302 hp / 5 600 rpm
2
(225 kW / 5 600 rpm)
362 hp / 5 750 rpm
2
(270 kW / 5 750 rpm)
Maximum torque acc. to SAE J
1349
229 lb-ft/ 3 000-4 600 rpm
(310 Nm / 3 000-4 600 rpm)
339 lb-ft / 2 700-4 250 rpm
(460 Nm / 2 700-4 250 rpm)
376 lb-ft / 4 000 rpm
(510 Nm / 4 000 rpm)
Maximum engine speed
6000 rpm
6000 rpm
6700 rpm
Firing order
1-4-3-6-2-5
1-5-4-2-6-3-7-8
1-5-4-2-6-3-7-8
Poly-V-belt
2380 mm
2380 mm
2380 mm

445 Technical data
Rims and tires
Rims and tires
Only use tires and rims which have been
specifically developed for your vehicle and
tested and approved by Mercedes-Benz.
Other tires and rims can have detrimental
effects, such as

poor handling characteristics


increased noise


increased fuel consumption
!Moreover, tires and rims not approved
by Mercedes-Benz may, under load, ex-
hibit dimensional variations and differ-
ent tire deformation characteristics
that could cause them to come into
contact with the vehicle body or axle
parts. Damage to the tires or the vehi-
cle may be the result.
iFurther information on tires and rims is
available at any authorized
Mercedes-Benz Center. A placard with
the recommended tire inflation pres-
sures is located on the driver’s door
B-pillar. Some vehicles may have sup-
plemental tire pressure information for
driving at high speeds (
page 323) or
for vehicle loads less than the maxi-
mum loaded vehicle condition. If such
information is provided, it can be found
on the placard located on the inside of
the fuel filler flap. The tire inflation
pressure should be checked regularly
and should only be adjusted on cold
tires. Follow tire manufacturer’s main-
tenance recommendation included
with vehicle.