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323
Operation
Tires and wheels
Tire and loading terminology
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power
seats, radio, and heater, to the extent that
these items are available as
factory-installed equipment (whether
installed or not).
Air pressure
The amount of air inside the tire pressing
outward on each square inch of the tire.
Air pressure is expressed in pounds per
square inch (psi), or kilopascal (kPa) or
bars.
Aspect ratio
Dimensional relationship between tire
section height and section width
expressed in percentage.
Bar
Another metric unit for air pressure. There
are 14.5038 pounds per square inch (psi)
to 1 bar; there are 100 kilopascals (kPa)
to 1 bar.
Bead
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least three hours or
driven no more than one mile (1.6 km). Curb weight
The weight of a motor vehicle with
standard equipment including the maxi-
mum capacity of fuel, oil, and coolant, and,
if so equipped, air conditioning and
additional optional equi
pment, but without
passengers and cargo.
DOT (D
epartment o
f T
ransportation)
A tire branding symbol which denotes the
tire meets requirements of the
U.S. Department of Transportation.
GAWR (G
ross A
xle W
eight R
ating)
The GAWR is the maximum permissible
axle weight. The gross vehicle weight on
each axle must never exceed the GAWR for
the front and rear axle indicated on the
Certification label located on the driver's
door B-pillar.
Page 427 of 474
426 Technical dataFuels, coolants, lubricants, etc.CapacitiesVehicle components and their respective
lubricants must match. Therefore use only
brands tested and approved by
Mercedes-Benz. Please refer to the Factory Approved Service Products
pamphlet, or inquire at your authorized
Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants, etc.
Engine with oil filter
C230Kompressor
C320
5.8 US qt (5.5 l)
7.9 US qt (7.5 l)
approved engine oils
Automatic transmission
8.5 US qt (8.0 l)
MB Automatic Transmission Fluid
Manual transmission
1.3 US qt (1.2 l)
MB Manual Transmission Oil
Rear axle
1.2 US qt (1.1 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. 2.1 oz (60 g) each
High temperature roller bearing grease
Cooling system
C230Kompressor
C320
approx. 5.9 US qt (5.6 l)
approx. 6.8 US qt (6.4 l)
MB 325.0 Anticorrosion/Antifreeze Agent
Page 428 of 474
427
Technical data
Fuels, coolants, lubricants, etc.
Model
Capacity
Fuels, coolants, lubricants, etc.
Fuel tank
including a reserve of
16.4 US gal (62.0 l)
2.1 US gal (8.0 l)
Premium unleaded gasoline:
Minimum Posted Octane 91 (Avg. of 96 RON / 86 MON)
Flexible Fuel Vehicles (identified by a label reading
Premium gasoline or E85 only!
on fuel filler flap):
Alternative fuel: Ethanol fuel (E85)
Air conditioning system
R-134a refrigerant and special PAG lubricant oil
(never R-12)
Windshield washer
3.2 US qt (3.0 l)
MB Windshield Washer Concentrate
1
Windshield washer and
headlamp cleaning system*
6.4 US qt (6.0 l)
1Use MB Windshield Washer Concentrate “S” and water for temperatur es above freezing point or MB Windshield Washer Concentrate “S” and commercially available
premixed windshield washer solvent/antifreeze for temperatures below freezing point. Follow suggested mixing ratios ( page 435).
Page 468 of 474

467
Index
Useful features 254
Ashtrays 257, 258
Cigarette lighter 259
Electrical outlet 260
Storage compartments 254
Tele Aid* 261
Telephone* 260
V
Vehicle Individual settings 133, 136
Locking 27
Locking in an emergency 379
Lowering 400
Performance in cold weather 431
Performance in hot weather 432
Service battery 401
Towing 406
Unlocking 27
Unlocking in an emergency 377
With flexible fuel 431
Vehicle battery 401
Vehicle capacity weight 326 Vehicle care 333
Cup holders 337
Engine cleaning 335
Gear selector lever 337
Hard plastic trim items 337
Headlamps 335
Instrument cluster 337
Leather upholstery 338
Light alloy wheels 336
MB Tex upholstery 338
Ornamental moldings 335
Paintwork 334
Plastic and rubber parts 338
Power washer 334
Seat belts 337
side markers 335
Steering wheel 337
Tail lamps 335
Tar stains 334
Turn signals 335
Upholstery 338
Vehicle washing 335
Window cleaning 336
Wiper blades 336
Wood trims 338 Vehicle jack 374
Vehicle lighting
Checking 290
Vehicle loading terminology 323
Vehicle maximum load on the tire 326
Vehicle status message memory 132
Vehicle tool kit 373 Air pump 373
Alignment bolt 373
Collapsible wheel chock 373
Gloves 373
Spare fuses 373
Special fuse puller 373
Towing eye bolt 373
Vehicle jack 373
Wheel bolts 373
Wheel wrench 373
Vehicle washing 335
VIN (Vehicle Identification Number) 441
Viscosity Engine oil 438
Voice control system* Hands-free microphone 29