Page 247 of 323
Engine compartment
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Automatic transmission fluid level
The transmission has a permanent fill of automatic
transmission fluid.
Regular automatic transmission fluid level checks and
changes are not required. For this reason the dipstick is
omitted.
If you notice f luid leaks or gear shifting malfunctions,
have your authorized Mercedes-Benz Center check the
transmission fluid level.Coolant level
To check the coolant level, the vehicle must be parked
on level ground and the engine stopped.
Check coolant level only when coolant is cold.
The coolant level should reach the black top part of the
reservoir.
P20.30-2032-26
247
Page 266 of 323

Towing
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index CLK 430:
Cover removal:
Hold left and right end of grille and pull out.
Cover installation:
Engage left and right end of grille and press in securely.
P88.20-2027-26
We recommend that the vehicle be transported using
flat bed equipment. This method is preferable to other
types of towing.
The vehicle may be towed with all wheels on the ground
and the selector lever in position “N” for distances up to
30 miles (50 km) and at a speed not to exceed 30 mph
(50 km/h). The electronic key must be in steering lock
position 2.
To be certain to avoid a possibility of damage to the
transmission, however, we recommend the drive shaft
be disconnected at the rear axle drive f lange for any
towing beyond a short tow to a nearby garage.
Do not tow with sling-type equipment. Towing with
sling-type equipment over bumpy roads will damage
radiator and supports.
Use wheel lift, dolly, or flat bed equipment, with
electronic key in steering lock turned to position 0.Warning!
With the engine not running, there is no power
assistance for the braking and steering systems. In
this case, it is important to keep in mind that a
considerably higher degree of effort is necessary to
brake and steer the vehicle.
266
Page 268 of 323
Towing
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Transmission selector lever, manually unlocking
In the case of power failure the transmission selector
lever can be manually unlocked, e.g. to tow the vehicle.To do so, insert a pin (1), e.g. ball point pen, into the
covered opening below the position “D” of the shift
pattern. While pushing the pin down, move selector
lever from position “P”.
After removal of the pin from the opening, the cover will
not close fully. Only after moving the selector lever to
positions “D+” and “D–” does the cover return to its
closed position.
268
Page 307 of 323

Fuels, coolants, lubricants etc. - capacities
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Fuels, coolants, lubricants etc. – capacities
Vehicle components and their respective lubricants must match. Therefore use only brands tested and recommended
by us. Please refer to the Factory Approved Service Products pamphlet, or inquire at your Mercedes-Benz Center.
Fuels, coolants, lubricants etc. Model Capacity
Engine with oil filter
(recommended engine oils)8.5 US qt (8.0 l)
Automatic transmission
(automatic transmission fluid)CLK 320
CLK 4308.5 US qt (8.0 l)
9.6 US qt (9.1 l)
Rear axle
(Hypoid gear oil SAE 90, 85 W 90)1.4 US qt (1.3 l)
Power steering
(MB Power steering fluid)approx. 1.1 US qt (1.0 l)
Front wheel hubs
(high temperature roller bearing grease)approx. 2.1 oz (60 g) each
Brake system
(MB Brake fluid (DOT 4))approx. 0.5 US qt (0.5 l)
Cooling system
(MB Anticorrosion/antifreeze)CLK 320
CLK 430approx. 9.5 US qt (9.0 l)
approx. 11.7 US qt (11.1 l)
307
Page 320 of 323

LIGHT SENSOR - malfunction and
w a r n i n g m e s sa g e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Lighter 151 LIGHTING SYSTEM - malfunction and
war ning mes sag es ............................................. 230
Limp home mode (Automatic transmission) 191 Locking and unlocking .............................................30 Luggage cover ....................................................... 238 MM a i n t e n a n c e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 Malfunction and indicator lamps
i n t h e i n s t r u m e n t c l u s t er . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Malfun ction an d warning messag es ...................... 222 M a l fu n ct i on m e s s a g e m e m or y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Man ual operation of soft top .................................. 280 Multicontour seat .....................................................54 Multifunction display ..............................................86
Engine oil level indicator .....................................90 ESS (Flexible service system) ...............................90 S e t t i n g th e a u d i o v ol u m e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Trip and main odometer ...................................... 90
Multifunction steering wheel .................................. 86 N Navigation system - Multifunction display ............... 99 0O n - boa r d di a gn os t i c s ys t em . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 Operator's Manual ..................................................... 8 Outside temperature indicator ................................ 84 Overhead control panel ........................................... 21 Panic button............................................................. 33 P a r c e l n et i n fr on t p a s s e n g e r fo ot w e l l . . . . . . . . . . . . . . . . . . . 152 P a r k i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 Parking brake .........................................................192 PARKING BRAKE - malfunction and
war ning messag es ............................................ 227
P o w e r a s s i st an ce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
321 P
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