Page 235 of 341
232 Malfunction and warning messages
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
BATTERY/ALTERNATORThis message indicates a malfunction which must be
repaired immediately.
It may indicate that the poly-V-belt has broken. Should
this condition occur, the poly-V-belt must be replaced
before continuing to operate the vehicle. Otherwise, the
engine will overheat due to an inoperative water pump
which may result in damage to the engine.
Do not continue to drive the vehicle with this message
displayed.
Doing so could result in serious engine damage that is
not covered by the Mercedes-Benz Limited Warranty.
Line 1 Line 2
BATTERY/ALTERNATOR VISIT WORKSHOP!
OVERVOLTAGE VISIT WORKSHOP!
UNDERVOLTAGE CONSUMER DEFECTIVE!
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237 Malfunction and warning messages
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index COOLANT TEMP. (coolant temperature)
1 Observe coolant temperature gauge, see page 82.
Check coolant level, see page 253.
This may indicate that the poly-V-belt has broken. Should this
condition occur, the poly-V-belt must be replaced before continuing
to operate the vehicle. Otherwise, the engine will overheat due to
an inoperative water pump which may result in damage to the
engine. Do not continue to drive the vehicle with this message
displayed. Doing so could result in serious engine damage that is
not covered by the Mercedes-Benz Limited Warranty.
During severe operating conditions and stop-and-go city
traffic, the coolant temperature may rise close to the red
marking.
The engine should not be operated with the coolant
temperature in the red zone. Doing so may cause
serious engine damage which is not covered by the
Mercedes-Benz Limited Warranty.
Line 1 Line 2
COOLANT TEMP. VISIT WORKSHOP!
1
Wa r n i n g !
Driving when your engine is badly overheated can
cause some fluids which may have leaked into the
engine compartment to catch fire. You could be
seriously burned.Steam from an overheated engine can cause serious
burns and can occur just by opening the engine
hood. Stay away from the engine if you see or hear
steam coming from it.Turn off the engine, get out of the vehicle and do
not stand near the vehicle until it cools down.
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299
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar careIndex
Vehicle careCleaning and care of the
vehicle ........................................300
Power washer .............................. 301
Paintwork, painted body
components ................................. 301
Engine cleaning ..........................302
Tar stains .....................................302
Vehicle washing .........................302
Ornamental moldings ................302
Headlamps, taillamps, turn signal
lenses ...........................................303
Window cleaning ........................303
Plastic and rubber parts ............303Wiper blade ................................ 303
Light alloy wheels ..................... 303
Instrument cluster ..................... 304
Steering wheel and gear selector
lever ............................................. 304
Cup holder .................................. 304
Seat belts ..................................... 304
Headliner .................................... 304
Upholstery .................................. 305
Hard plastic trim items ............. 305
Plastic and rubber parts ........... 305
Wind screen .............................. 305
Rubber weatherstrip ................ 305
Soft top ........................................ 306
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302 Cleaning and care of the vehicle
Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints IndexTe ch n i c a l
data Car care
Engine cleaning
Prior to cleaning the engine compartment make sure to
protect electrical components and connectors from the
intrusion of water and cleaning agents.
Corrosion protection, such as MB Anticorrosion Wax
should be applied to the engine compartment after
every engine cleaning. Before applying, all control
linkage bushings and joints should be lubricated. The
poly-V-belt and all pulleys should be protected from any
wax.
Ta r sta in s
Quickly remove tar stains before they dry and become
more difficult to remove. A tar remover is
recommended.Ve h i c l e w a s h i n g
Do not use hot water or wash your vehicle in direct
sunlight. Use only a mild car wash detergent, such as
Mercedes-Benz approved Car Shampoo.
Thoroughly spray the vehicle with a diffused jet of
water. Direct only a very weak spray towards the
ventilation intake. Use plenty of water and rinse the
sponge and chamois frequently.
Rinse with clear water and thoroughly wipe dry with a
chamois. Do not allow cleaning agents to dry on the
finish.
In the winter, thoroughly remove all traces of road salt
as soon as possible.
When washing the underbody, do not forget to clean the
inner sides of the wheels.
Ornamental moldings
For regular cleaning and care of very dirty chrome-
plated parts, use a chrome cleaner.
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304 Cleaning and care of the vehicle
Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints IndexTe ch n i c a l
data Car care
Instrument cluster
Use a gentle dishwashing detergent or mild detergent
for delicate fabrics as a washing solution. Wipe with a
cloth moistened in lukewarm solution. Do not use
scouring agents.
Steering wheel and gear selector lever
Wipe with a damp cloth and dry thoroughly or clean
with Mercedes-Benz approved Leather Care.
Cup holder
Use a gentle dishwashing detergent or mild detergent
for delicate fabrics as a washing solution. Wipe with a
cloth moistened in lukewarm solution. Do not use
scouring agents.Seat belts
The webbing must not be treated with chemical
cleaning agents. Use only clear, lukewarm water and
soap. Do not dry the webbing at temperatures above
176
°F (80
°C) or in direct sunlight.
Headliner
Clean with soft bristle brush, or use a dry-shampoo
cleaner in case of excessive dirt.
Wa r n i n g !
Do not bleach or dye seat belts as this may severely
weaken them. In a crash they may not be able to
provide adequate protection.
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Page 310 of 341
307
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Technical dataSpare parts service ........................308
Warranty coverage .........................308
Identification labels .......................309
Layout of poly-V-belt drive ............ 310
Technical data ................................ 311
Fuels, coolants, lubricants etc. –
capacities ................................... 316
Engine oils ...................................... 318Engine oil additives ....................... 318
Air conditioner refrigerant ........... 318
Brake fluid ....................................... 318
Premium unleaded gasoline ......... 319
Fuel requirements ......................... 319
Gasoline additives ......................... 320
Coolants .......................................... 320
Consumer information ................. 322
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Page 313 of 341
310 Technical data
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
CLK 320 shown
3VIN, visible (lower edge of windshield)
4Engine number
5Body number and paintwork number
6Emission control label
7Information label, California version
Vacuum line routing for emission control systemLayout of poly-V-belt drive
1Automatic belt tensioner
2Crankshaft
3Air conditioner compressor
4Coolant pump
5Generator (alternator)
6Idler pulley
7Power steering pump
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311 Technical data
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Te ch n i c a l d a t a
Model CLK 320 (208 465)
1
CLK 430 (208 470)
1
Engine11 2 113
Mode of operation 4-stroke engine,
gasoline injection4-stroke engine,
gasoline injection
No. of cylinders 6 8
Bore 3.54 in (89.90 mm) 3.54 in (89.90 mm)
Stroke 3.31 in (84.00 mm) 3.31 in (84.00 mm)
Total piston displacement 195.2 cu.in. (3199 cm
3) 260.3 cu.in. (4265 cm
3)
Compression ratio 10:1 10:1
Output acc. to SAE J 1349 215 hp/5700 rpm
(160 kW/5700 rpm)275 hp/5750 rpm
(205 kW/5750 rpm)
Maximum torque acc. to SAE J 1349 232 ft.lb/3000 rpm
(315 Nm/3000 rpm)295 ft.lb/3200 rpm
(400 Nm/3200 rpm)
Maximum engine speed 6000 rpm 6000 rpm
Firing order 1-4-3-6-2-5 1-5-4-2-6-3-7-8
Poly-V-belt 2390 mm 2390 mm
1 The 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.
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