MERCEDES-BENZ C320 2002 W203 Owner's Manual
Manufacturer: MERCEDES-BENZ, Model Year: 2002, Model line: C320, Model: MERCEDES-BENZ C320 2002 W203Pages: 406
Page 371 of 406

368 Cleaning and care of the vehicle
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar careIndex
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.Vehicle washing
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.
Due to the width of the vehicle, prior to running the
vehicle through an automatic car wash, fold back the
outside mirrors to prevent them from getting damaged.
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.
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369 Cleaning and care of the vehicle
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar careIndex Ornamental moldings
For regular cleaning and care of very dirty chrome-
plated parts, use a chrome cleaner.
Headlamps, taillamps, turn signal lenses
Use a mild car wash detergent, such as Mercedes-Benz
approved Car Shampoo, with plenty of water.
To prevent scratches, never apply strong force and use
only a soft, non-scratchy cloth when cleaning the lenses.
Do not attempt to wipe dirty lenses with a dry cloth or
sponge.Window cleaning
Use a window cleaning solution on all glass surfaces. An
automotive glass cleaner is recommended.
Note:
For safety reasons, switch off wipers and remove
electronic key from starter switch before cleaning the
windshield, otherwise the wiper motor can suddenly
turn on and cause injury.
Wiper blades
Clean the wiper blade rubbers with a clean cloth and
detergent solution.
Note:
For safety reasons, remove electronic key from starter
switch before cleaning the wiper blades, otherwise the
wiper motor can suddenly turn on and cause injury.
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370 Cleaning and care of the vehicle
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar careIndex
Light alloy wheels
Mercedes-Benz approved Wheel Care should be used for
regular cleaning of the light alloy wheels.
If possible, clean wheels once a week with Mercedes-
Benz approved Wheel Care, using a soft bristle brush
and a strong spray of water.
Follow instructions on container.
Note:
Use only acid-free cleaning materials. The acid could
lead to corrosion.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.
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371 Cleaning and care of the vehicle
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar careIndex 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 and shelf below rear window
Clean with soft bristle brush, or use a dry-shampoo
cleaner in case of excessive dirt.Leather upholstery
Using aftermarket seat covers or wearing clothing that
have the tendency to give off coloring (e.g. when wet
etc.) may cause the upholstery to become permanently
discolored. By lining the seats with a proper
intermediate cover, contact-discoloration will be
prevented.
Leather Upholstery
Wipe leather upholstery with a damp cloth and dry
thoroughly or clean with Mercedes-Benz approved
Leather Care. Exercise particular care when cleaning
perforated leather as its underside should not become
wet.
MB Tex Upholstery
Pour Mercedes-Benz approved Interior Care onto soft
lint-free cloth and apply with light pressure.
Hard plastic trim items
Pour Mercedes-Benz approved Interior Care onto soft
lint-free cloth and apply with light pressure.
Plastic and rubber parts
Do not use oil or wax on these parts.
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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OM_203.book Seite 372 Donnerstag, 31. Mai 2001 11:57 11
Page 376 of 406

373 Contents - Technical data
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Technical dataSpare parts service ........................ 374
Warranty coverage ......................... 374
Identification labels .......................375
Layout of poly-V-belt drive ............ 376
Technical data ................................377
Fuels, coolants, lubricants etc. -
capacities ................................... 381
Engine oils ......................................383Engine oil additives ...................... 383
Air conditioner refrigerant .......... 383
Brake fluid ...................................... 383
Premium unleaded gasoline ........ 384
Fuel requirements ........................ 384
Gasoline additives ......................... 385
Coolants .......................................... 385
Consumer information ................. 387
Uniform tire quality grading ....... 387
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Page 377 of 406

374 Technical data
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Spare parts service
All authorized Mercedes-Benz Centers maintain a stock
of original spare parts required for maintenance and
repair work. In addition, strategically located parts
distribution centers provide quick and reliable parts
service.
More than 300 000 different spare parts, for
Mercedes-Benz models, are available.
Mercedes-Benz original spare parts are subjected to
stringent quality inspections. Each part has been
specifically developed, manufactured or selected for and
adapted to Mercedes-Benz vehicles.
Therefore, Mercedes-Benz original spare parts should
be installed.
Important!
The use of non-genuine parts and accessories not
authorized by Mercedes-Benz could damage the vehicle
which damage is not covered by the Mercedes-Benz
Limited Warranty or compromise its durability or safety.Wa r r a n t y c o v e r a g e
Your vehicle is covered under the terms of the
“warranties” printed in the Service and Warranty
Information booklet and your authorized
Mercedes-Benz Center will exchange or repair any
defective parts originally installed on the vehicle in
accordance with the terms of the following warranties:
1. New vehicle limited warranty
2. Emission systems warranty
3. Emission performance warranty
4. California, Massachusetts, and Vermont emission
control systems warranty
Replacement parts and accessories are covered by the
Mercedes-Benz Spare Parts and Accessories warranties,
copies of which are available at any Mercedes-Benz
Center.
Loss of Service and Warranty Information Booklet
Should you lose your Service and Warranty Information
booklet, have your authorized Mercedes-Benz Center
arrange for a replacement. It will be mailed to you.
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Page 378 of 406

375 Technical data
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Identification labels
1Certification label2Vehicle Identification Number (VIN)
(below right front passenger seat)
2
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376 Technical data
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
3VIN, visible (lower edge of windshield)
4Engine number
5Emission control label
6Information label, California version
Vacuum line routing for emission control system
When ordering spare parts, please specify vehicle
identification and engine numbers.Layout of poly-V-belt drive
1Automatic belt tensioner
2Crankshaft
3Air conditioner compressor
4Generator (alternator)
5Idler pulley
6Power steering pump
7Coolant pump, fan
4
6
3
5
P 01.00-2220-26
6
5
1
2
3
7
4
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377 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 C 240 (203.061
1)C 320 (203.064
1)C 32 AMG (203.065
1)
Engine11 2 11 2 11 2
Mode of operation 4-stroke engine,
gasoline injection4-stroke engine,
gasoline injection4-stroke engine,
gasoline injection
No. of cylinders666
Bore 3.54 in (89.90 mm) 3.54 in (89.90 mm) 3.54 in (89.90 mm)
Stroke 2.68 in (68.20 mm) 3.30 in (84.00 mm) 3.30 in (84.00 mm)
Total piston displacement 158,5 cu.in. (2597 cm
3) 195.2 cu.in. (3199 cm
3) 195.2 cu.in. (3199 cm
3)
Compression ratio 10:1 10:1 9.0:1
Output acc. to SAE J 1349 167 hp/6000 rpm
(125 kW/6000 rpm)221 hp/5600 rpm
(165 kW/5600 rpm)349 hp/6100 rpm
(260 kW/6100 rpm)
Maximum torque
acc. to SAE J 1349177ft.lb/4500rpm
(240 Nm/4500 rpm)228ft.lb/3000rpm
(310 Nm/3000 rpm)333ft.lb/4400rpm
(450 Nm/4400 rpm)
Maximum engine speed 6200 rpm 6000 rpm 6200 rpm
Firing order 1-4-3-6-2-5 1-4-3-6-2-5 1-4-3-6-2-5
Poly-V-belt 2390 mm 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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