transmission oil 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

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.

351 Technical data
Fuels, coolants, lubricants, etc.
Fuels, coolants, lubricants, etc.
CapacitiesVehicle components and their respective
lubricants must match. Therefore only use
brands tested and recommended by us.Please refer to the Factory Approved Ser-
vice Products pamphlet, or inquire at your
Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants, etc.
Engine with oil filter
CLK 320
CLK 500
CLK 55 AMG
8.5 US qt (8.0 l)
8.0 US qt (7.5 l)
9.0 US qt (8.5 l)
Recommended engine oils
Automatic transmission
CLK 320
CLK 500
CLK 55 AMG
8.0 US qt (7.5 l)
9.3 US qt (8.7 l)
9.3 US qt (8.7 l)
MB Automatic Transmission Oil
1
1MB part no. 001 989 21 03 10Rear axle
CLK 320
CLK 500
CLK 55 AMG
1.28 US qt (1.2 l)
1.5 US qt (1.4 l)
1.5 US qt (1.4 l)
Hypoid gear oil SAE 85 W 90
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin
CHF 11S)
Front wheel hubs
approx. 3.0 oz (85 g) each
High temperature roller bearing grease
Brake system
0.64 US qt (0.6 l)
MB Brake Fluid (DOT 4+)

363 Technical terms
Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced.
Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.
ESP
(E
lectronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.
ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the sys-
tem's threshold to tighten the seat
belts.
->SRSFSS
(F
lexible S
ervice S
ystem)
Service indicator in the multifunction
display that informs the driver when
the next vehicle maintenance service is
due.
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the selector lever.
GPS
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs CD digital maps for
navigation.
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer,
engine temperature and fuel gauge.KEYLESS-GO*
System for entering and operating the
vehicle without the use of a key.
Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible gear.
This very quickly accelerates the vehi-
cle and should not be used for normal
acceleration needs.
Line of fall
The direct line that an object moves
downhill when influenced by the force
of gravity alone.
Lock button
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the lock button down
on an individual door from inside will
lock that door.