2004 MERCEDES-BENZ C320 Brake system

350 Technical dataFuels, coolants, lubricants, etc.
Model
Capacity
Fuels, coolants, lubricants, etc.
Front axle
C2404MATIC
C3204MATIC
0.5 US qt (0.46 l)
Hypoid gear oil SAE 85 W 90
Transfer case
C2404MATIC
C3204MATIC
approx. 0.62 US qt (0.59 l)
MB Transfer case fluid
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin CHF 11S)
Front wheel hubs
approx. 2.1oz (60g) each
High temperature roller bearing grease
Brake system
0.5 US qt (0.5 l)
MB Brake Fluid (DOT 4+)
Cooling system
C 230 Kompressor Sport
C 240 (all models)
C 320 (all models)
C32AMG
approx. 5.9 US qt (5.6 l)
approx. 6.8 US qt (6.4 l)
approx. 6.8 US qt (6.4 l)
approx. 6.8 US qt (6.4 l)
MB 325.0 Anticorrosion/antifreeze agent
Fuel tank
including a reserve of
16.4 US gal (62.0 l)
2.1 US gal (8.0 l)
Premium unleaded gasoline:
Posted Octane 91 (Avg. of 96 RON/86 MON)Flexible Fuel Vehicle (identified by a label
reading Premium gasoline or E85 only! on
fuel filler flap):
Alternative fuel: Ethanol fuel (E85)

352 Technical dataFuels, coolants, lubricants, etc.Engine oils
Engine oils are specifically tested for their
suitability in our engines. Therefore, only
use engine oils approved by
Mercedes-Benz. Information on approved
engine oils is available in the Factory
Approved Service Products pamphlet, or at
your authorized Mercedes-Benz Center.Please follow FSS recommendations for
scheduled oil changes. Failure to do so
could result in engine damage not covered
by the Mercedes-Benz Limited Warranty.
Engine oil additives
Do not blend oil additives with engine oil.
They may damage the engine.
Damage or malfunctions resulting from
blending oil additives are not covered by
the Mercedes-Benz Limited Warranty.Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil is used in the air
conditioning system.Never use R-12 (CFC) or mineral-based
lubricating oil. Otherwise damage to the
system will occur.
Brake fluid
During vehicle operation, the boiling point
of the brake fluid is continuously reduced
through the absorption of moisture from
the atmosphere. Under extremely strenu-
ous operating conditions, this moisture
content can lead to the formation of
bubbles in the system, thus reducing the
system’s efficiency.
Therefore, the brake fluid must be
replaced every two years, preferably in the
spring.
Only brake fluid approved by
Mercedes-Benz is recommended. Your
authorized Mercedes-Benz Center will
provide you with additional information.
!Always check the oil filler cap
(page 255) for important information
pertaining to the engine oil needing to
meet a specific Mercedes-Benz specifi-
cation (e.g. MB 229.5). If such informa-
tion is printed on the oil filler cap, only
use an engine oil from the list of ap-
proved engine oils in the Factory Ap-
proved Service Products pamphlet that
meets the specification indicated on
the oil filler cap.
Using engine oils of other specification
may cause the FSS to incorrectly deter-
mine the next service interval and will
result in engine damage not covered by
the Mercedes-Benz Limited Warranty.

361 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
TM1
airbag deactivation
system
This system detects if a special system
compatible child restraint seat is
installed on the front passenger seat.
The system will automatically deacti-
vate the passenger front airbag when
such a seat is properly installed
(PASS. AIRBAG OFF indicator lamp
located in the center console comes
on). See your authorized
Mercedes-Benz Center for availability. BabySmart
TM compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the
passenger front airbag if a
BabySmartTM compatible child seat is
installed.
BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking
situations. 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
intense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.CAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service
center, which can help you with any
questions about your vehicle and
provide assistance in the event of a
breakdown.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control
vehicle functions such as door locking
or windshield wiping depending on
vehicle settings and/or ambient
conditions.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the
passenger compartment needed for
vehicle operation and monitoring.
1BabySmart
TM is a trademark of Siemens
Automotive Corp.

364 Technical termsPower train
Collective term designating all
components used to generate and
transmit motive power to the drive
axles, including


engine


clutch/torque converter


transmission


transfer case


drive shaft


differential


axle shafts/axles
Program mode selector switch
Used to switch the automatic trans-
mission between standard operationS
and comfort operationC.Remote Vehicle Diagnostics
Transmission of vehicle data and
current location to the Mercedes-Benz
Customer Assistance Center for
subscribers to Tele Aid service.
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the
vehicle interior for a short time after
the engine has been turned off.
Restraint systems
Seat belts, belt tensioners, airbags and
child restraint systems. As inde-
pendent systems, their protective
functions 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 deto-
nation (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Shift lock
When the vehicle is parked, this lock
prevents the transmission gear
selector lever from being moved out of
positionP without SmartKey turned
and brake pedal depressed.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning
device and airbags. Though indepen-
dent systems, they are closely inter-
faced to provide effective occupant
protection.

369 Index
Air vents, rear passenger compartment
Adjustable
Automatic climate control* 172
Climate control 161
Air volume
Adjusting
Automatic climate control* 166
Climate control 157
Airbags 55
BabySmart
TM deactivation
system 66, 361
Children 56
Front 59
Passenger 59
Safety guidelines 58
Side impact 60
Window curtain 60
Alarm
Audible 71, 78
Canceling 79
Visual 78Alarm system
Anti-theft* 78
Tow-away* 79
Alignment bolt (vehicle tool kit) 319, 361
Anticorrosion/antifreeze 357
Antiglare
Automatic* 149
Manual 149
Antilock Brake System see ABS
Anti-theft alarm system*
Arming 78
Canceling alarm 79
Disarming 79
Anti-theft systems 78
Anti-theft alarm system* 78
Immobilizer 78
Tow-away alarm* 79
Aquaplaning see Hydroplaning
Armrest
Storage compartment in front of 218
Storage spaces 219
Ashtrays 220ATF 256
AUDIO menu 118
Selecting radio station 119
Selecting satellite radio* station 119
Audio system 173
Audio and telephone, operation 173
Button and soft key operation 176
Cassette operation 186
CD* operation 189
Operating and display elements 174
Operating safety 173
Operation 176
Radio operation 179
Switching off 176
Switching on 176
Telephone* operation 193
Automatic antiglare* for rear view
mirror 149
Automatic central locking
Activating/deactivating
(control system) 133

371 Index
Bi-Xenon headlamps* 361
Bi-Xenon type*
Front lamp bulbs 313
Block heater 264
Blocking
Rear door window operation 70
Bolts
For Minispare wheel 304
Brake Assist System see BAS
Brake fluid 352
Checking 251
Message in display 286
Brake lamp bulbs 311
Brake lamp, high mounted 311
Brake pads
Message in display 286
Brakes 240
Warning lamp 275
Break-in period 238Bulbs, replacing 310
Additional turn signals 310
Backup lamps 311
Brake lamps 311
Fog lamps 310
Front lamps 310
High beam 310
High beam flasher 310
High mounted brake lamp 311
License plate lamps 311, 315
Low beam 310
Parking lamps 310, 311, 313, 314
Rear fog lamp 311, 315
Rear lamps 311
Side marker lamps 310, 314
Standing lamps 310, 311, 313, 314
Tail lamp assemblies 311, 315
Turn signal lamps 310, 311
Button
Audio system 176C
CAC 361
California
Important notice 11
Calling up
Range (distance to empty) 138
Service indicator 266
CAN system 361
Capacities
Fuels, coolants, lubricants, etc. 349
Cargo area see Trunk
Cassette operation
Playing cassettes 186
Cassette player
Operating 121
Catalytic converter 247
CD changer* 189
CD player*
Operating 120
CD* operation 189

372 IndexCenter console 25
Lower part 26
PASS. AIRBAG OFF
indicator lamp 279
Upper part 25
Centigrade
Setting temperature units 127
Central locking
Automatic 90
From inside 91
Switch 91
Switching on/off
(control system) 133
Unlocking from inside 91
Central locking switch 91
Certification label 338
Changing
Batteries (SmartKey) 307
CDs 189
Key setting 133
Charcoal filter 169Charging
Vehicle battery 324
CHECK ENGINE
malfunction indicator lamp 276
Checking
Brake fluid 251
Coolant level 251, 257
Engine oil level 251, 254
Tire inflation pressure 251
Vehicle lighting 251
Child safety 63
Airbags 56
Infant and child restraint
systems 60, 63
LATCH-type child seat anchors 69
Child safety switch see
Blocking of rear door window operation
Child seat anchors
see LATCH-type child seat anchors
Cigarette lighter 221Cleaning
Cloth upholstery 272
Cup holder 271
Gear selector lever 271
Hard plastic trim items 271
Headlamps 148
Headliner and shelf below
rear window 271
Instrument cluster 270
Leather upholstery 271
Light alloy wheels 270
MB Tex upholstery 272
Plastic and rubber parts 272
Seat belts 271
Steering wheel 271
Upholstery 271
Windows 270
Windshield 48
Wiper blades 270
Wood trims 272

379 Index
Gear selector lever 23, 44
Cleaning 271
Lock 44
Position (Automatic
transmission*) 23, 142, 145
Gearshift lever 43
Global
Locking 83
Unlocking 83
Global Positioning System see GPS
Glove box 21, 216
Closing 216
Opening 216
Good visibility 148
GPS 362
GPS see COMAND*
H
Halogen-type
Front lamp bulbs 312
Hands-free microphone 27
Hard plastic trim items
Cleaning 271Hazard warning flasher 106
Switching off 106
Switching on 106
Head restraints
Front seats
Manual seat 34, 93
Power seat* 35, 94
Rear seats 94
Headlamp cleaning system* 259
Headlamp shut-off delay see Delayed
shut-off, exterior lamps
Headlamps
Automatic control 103
Bi-Xenon* 361
Bi-Xenon* type
Replacing bulbs 313
Cleaning 269
Cleaning system* 148, 259, 358
Halogen-type
Replacing bulbs 312
Refilling washer fluid 259
Switching off 51
Switching on 46
Washer fluid 358Headliner and shelf below rear window
Cleaning 271
Heated seats* 98
Height adjustment
Front seat head restraints
Manual seat 34
Power seat* 35
Rear seat head restraints 94
Seat belts 42
Steering wheel
Adjustment, electrical* 37
Adjustment, manual 37
High beam flasher 47, 106
High beam headlamps
Messages in display 294
Replacing bulbs 310, 312
Switching on 106
High beam headlamps xenon type*
Replacing bulbs 313
High mounted brake lamp 311