2004 MERCEDES-BENZ C CLASS COUPE technical data

337
Technical data
Fuels, coolants, lubricants, etc.
Anticorrosion/antifreeze
Your vehicle contains a number of alumi-
num parts. The use of aluminum compo-
nents in motor vehicle engines
necessitates that anticorrosion/antifreeze
coolant used in such engines be specifical-
ly formulated to protect the aluminum
parts. (Failure to use such anticorro-
sion/antifreeze coolant will result in a sig-
nificantly shortened service life.)
Therefore, the following product is strongly
recommended for use in your vehicle:
Mercedes-Benz 325.0 Anticorrosion/Anti-
freeze agent. Before the start of the winter season (or
once a year in hot southern regions), you
should have the anticorrosion/antifreeze
concentration checked. The coolant is also
regularly checked each time you bring your
vehicle to your authorized Mercedes-Benz
Center for service.
Anticorrosion/antifreeze quantityModel
Approx. freeze protection–35°F (–37°C)
–49°F (–45°C)
C230Kompressor
3.0 US qt (2.8 l)
3.3 US qt (3.1 l)
C320
3.4 US qt (3.2 l)
3.8 US qt (3.6 l)

338 Technical dataFuels, coolants, lubricants, etc.Windshield washer system and headlamp cleaning system
Both the windshield and headlamp washer
systems are supplied from the windshield
washer fluid reservoir.
The washer fluid reservoir has a capacity of
approx.

6.4 US qt (6.0 l) in vehicles with head-
lamp cleaning system*


3.2 US qt (3.0 l) in vehicles without
headlamp cleaning system

Refill the reservoir with MB Windshield
Washer Concentrate and water (or con-
centrate and commercially available
premixed windshield washer sol-
vent/antifreeze, depending on ambient
temperatures).Windshield and headlamp washer fluid
mixing ratio
For temperatures above freezing point use
MB Windshield Washer Concentrate “S”
and water:


1 part “S” to 100 parts water
[40 ml “S” to 1 gallon (4 liters) water]
For temperatures below freezing point use
MB Windshield Washer Concentrate “S”
and commercially available premixed
windshield washer solvent/antifreeze:


1 part “S” to 100 parts solvent
[40 ml “S” to 1 gallon (4 liters) solvent].
Warning!
G
Washer solvent/antifreeze is highly flamma-
ble. Do not spill washer solvent/antifreeze
on hot engine parts, because it may ignite
and burn. You can be seriously burned.

339
Technical data
Consumer information
 Consumer information
The following text is published as required
of all manufacturers of passenger cars un-
der Title 49, Code of U.S. Federal Regula-
tions, Part 575 pursuant to the “National
Traffic and Motor Vehicle Safety Act of
1966”.Uniform tire quality grading
Quality grades can be found, where appli-
cable, on the tire sidewall between tread
shoulder and maximum section width. For
example:
All passenger car tires must conform to
federal safety requirements in addition to
these grades. Tread wear
The tread wear grade is a comparative rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For ex-
ample, a tire graded 150 would wear one
and one-half (1½) times as well on the gov-
ernment course as a tire graded 100. The
relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly
from the norm due to variations in driving
habits, service practices and differences in
road characteristics and climate.
Traction
The traction grades, from highest to lowest
are AA, A, B, and C. Those grades repre-
sent the tire’s ability to stop on wet pave-
ment as measured under controlled
conditions on specified government test
surfaces of asphalt and concrete. A tire
marked C may have poor traction perfor-
mance.Tread wear
Traction
Temperature
200
AA
A
Warning!
G
The traction grade assigned to this tire is
based on straightahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.

340 Technical dataConsumer informationTemperature
The temperature grades are A (the high-
est), B, and C, representing the tire’s resis-
tance to the generation of heat and its
ability to dissipate heat when tested under
controlled conditions on a specified indoor
laboratory test wheel. Sustained high tem-
perature can cause the material of the tire
to degenerate and reduce tire life, and ex-
cessive temperature can lead to sudden
tire failure. Grade C corresponds to a level
of performance which all passenger car
tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B
and A represent higher levels of perfor-
mance on the laboratory test wheel than
the minimum required by law.
Warning!
G
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underin-
flation, or excessive loading, either sepa-
rately or in combination, can cause
excessive heat build-up and possible tire
failure.

341
Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Alignment bolt Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.
BabySmart
TM airbag deactivation
system This system detects if a special system
compatible child restraint seat is in-
stalled on the front passenger seat. The
system will automatically deactivate
the passenger front airbag when such a
seat is properly installed (indicator
lamp PASS. AIRBAG OFF in the center
console comes on). See your autho-
rized Mercedes-Benz Center for avail-
ability. BabySmart
TM compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the pas-
senger front airbag if a BabySmart
TM
compatible child seat is installed.
BAS (B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.
Bi-Xenon headlamps* Headlamps which use an electric arc as
the light source and produce a more in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam. CAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.
CAN system (C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or
windshield wiping.
Cockpit All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.

344 Technical termsPower trainCollective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing


engine


clutch/torque converter


transmission


transfer case


drive shaft


differential


axle shafts/axles Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Program mode selector switch Used to switch the automatic transmis-
sion between standard operation S and
winter operation C.
Remote Vehicle Diagnostics Transmission of vehicle data and cur-
rent location to the Mercedes-Benz
Customer Assistance Center for sub-
scribers to Tele Aid service.
Restraint systems Seat belts, belt tensioners, airbags and
child restraint systems. As indepen-
dant systems, their protective func-
tions complement one another. RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as AN-
TI-KNOCK INDEX.
Shift lock When the vehicle is parked, this lock
prevents the gear selector lever from
being moved out of position P without
SmartKey turned and brake pedal de-
pressed.

354 Index
Safety systems 73
Through standing water 229
Driving abroad 230
Driving instructions 223
Driving off 225
Driving safety systems ABS 73
BAS 74
ESP 75
Driving systems 194 Cruise control 194
Driving safety systems 73
E
Easy-entry/exit feature 89 Activating 130
Interrupting movement 89, 130
Electrical fuses 317
Electrical system Technical data 327
Electronic Stability Program see ESP 23, 75, 342 Emergency call system* 206
Emergency calls
Initiating an emergency call 209
Telephone* 184
With Tele Aid* 208
Emergency operation (Limp Home Mode) 145
Emergency operations Closing sliding/pop-up roof 292
Locking the vehicle 289
Opening sliding/pop-up roof 292
Remote door unlock 213
Unlocking the vehicle 288
Emergency release Trunk lid 86
Emergency tensioning device see ETD 64, 342
Emission control 231
Emission control label 322
Ending A call (telephone) 135 Engine
Compartment 236
Message in display 260
Starting with automatic transmission 45
Starting with manual transmission 44
Starting with the key 45
Technical data 324
Turning off with the key 53
Engine cleaning 253
Engine compartment 236 Fuse box in 317
Hood 236
Engine malfunction indicator lamp 23, 260
Engine number 342
Engine oil 237, 332 Adding 239
Additives 332
Checking level 237
Consumption 237
Display messages 275
Filler neck 240

356 IndexFront seat head restraintsInstalling 90
Manual seat 90
Power seat* 91
Removing 90
Front seats Heater 93
FSS (Flexible Service System) 249, 342
Fuel 234 Additives 334
Cruising range 335
E85 (Ethanol fuel) 335
Fuel reserve warning lamp 262
Gasoline additives 334
Premium unleaded gasoline 234, 331, 333
Requirements 333
Reserve warning 23
Switching (Flexible fuel vehicle) 334
Technical data 330
Fuel additives 334 Fuel consumption statistics
After start 133
Since last reset 133
Fuel filler flap 233 Locking 233
Opening 291
Unlocking 233
Fuel requirements 333
Fuel reserve tank Message in display 277
Fuel tank Capacity 331
Filler flap 233
Fuels, coolants, lubricants etc. Capacities 330
Functions (control system) 110, 113 Resetting 120
Fuse box 317
Fuse chart 317
Fuse extractor 318
Fuses 317 Auxiliary fuse box in trunk 318
Fuse box in engine compartment 317
Fuse box in passenger
compartment 317
Fuse chart 317
Fuse extractor 318
G
Garage door opener 27, 214
Gasoline see Fuel 234 Gasoline additives 334
Gear range 342 Automatic transmission 141
Limiting 141
Shifting into optimal 140
Gear range limit Canceling 140
Gear selector lever 291 Cleaning 255
Position 142
Unlocking manually 291
Global Locking 83
Unlocking 83