2005 MERCEDES-BENZ C COUPE service

433 Technical data
Fuels, coolants, lubricants, etc.
If you use a solution that is more than 55%
anticorrosion/antifreeze (freeze protec-
tion to approximately - 49°F [-45°C]), the
engine temperature will increase due to
the lower heat transfer capability of the so-
lution. Therefore, do not use more than
this amount of anticorrosion/antifreeze.
If the coolant level is low, water and
MB 325.0 anticorrosion/antifreeze should
be used to bring it up to the proper level
(have cooling system checked for signs of
leakage). Please make sure the mixture is
in accordance with label instructions.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water. If you
are not sure about the water quality, con-
sult an authorized Mercedes-Benz Center.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
significantly 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 an authorized Mercedes-Benz
Center for service.

437 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.
Accessory weight
(
page 323)
Air pressure
(page 323)
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.
Aspect ratio
(page 323)
Bar
(page 323)
BAS
(Brake 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.Bead
(
page 323)
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
(Customer 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.
Cold tire inflation pressure
(
page 323)
Collapsible tire
An especially compact spare tire that
must be inflated with a provided air
pump before using. It should only be
used to bring the vehicle to the nearest
service station.
COMAND*
(Cockpit M
anagement and D
ata Sys-
tem)
Information and operating center for
vehicle sound and communications
systems, including the radio and navi-
gation system, as well as other optional
equipment (CD changer, telephone,
etc.).

438 Technical termsControl system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to ad-
just settings.
Cruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.
Curb weight
(
page 323)
DOT
(Department o
f Transportation)
(
page 323)
Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced.Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.
ESP
(E
lectronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.
ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the sys-
tem's threshold to tighten the seat
belts.
->SRSFSS (Canada vehicles)
(F
lexible S
ervice S
ystem)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. FSS evaluates
engine temperature, oil level, vehicle
speed, engine speed, distance driven
and the time elapsed since your last
maintenance service, and calls for the
next maintenance service accordingly.
GAWR
(G
ross A
xle W
eight R
ating)
(
page 323)
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the gear selector le-
ver.

439 Technical terms
GPS*
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs CD digital maps for
navigation.
GVW
(G
ross V
ehicle W
eight)
(
page 324)
GVWR
(Gross V
ehicle W
eight R
ating)
(
page 324)
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer
and fuel gauge.Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible gear.
This very quickly accelerates the vehi-
cle and should not be used for normal
acceleration needs.
Kilopascal (kPa)
(
page 324)
Lock button
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the lock button down
on an individual door from inside will
lock that door.
Maintenance System (U.S. vehicles)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. The Maintenance
System in your vehicle tracks distance
driven and the time elapsed since your
last maintenance service, and calls for
the next maintenance service accord-
ingly.Maximum load rating
(
page 324)
Maximum loaded vehicle weight
(page 324)
Maximum tire inflation pressure
(page 324)
Memory function*
Used to store three individual seat,
steering wheel and mirror positions for
each SmartKey.
MON
(Motor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. It is an indication of a gasoline's
ability to resist undesired detonation
(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.

446 IndexBolts
For spare wheel 376
Brake
Indicator lamp 25
Brake assist system (BAS) 437
Brake fluid 290, 428
Checking 290
Message in display 358
Brake lamp bulbs 385
Brake pads
Message in display 358
Brakes 278
Warning lamp 341
Break-in period 276
Bulbs, replacing 384
Additional turn signals 385
Brake lamps 385
Fog lamps 385
Front lamps 385
High beam 385
High beam flasher 385
License plate lamps 385, 392
Low beam 385
Parking lamps 385, 388, 390
Rear fog lamp 385, 390
Rear lamps 385Side marker lamp 391
Side marker lamps 385, 390
Standing lamps 385, 388, 390
Tail lamp assemblies 385
Tail lamp unit 390
Turn signal lamps 385
Button
Audio system 198
C
CAC (Customer Assistance Center) 437
Calling up
Range (distance to empty) 152
Service indicator 331
CAN system 437
Capacities
Fuels, coolants, lubricants, etc. 426
Cargo compartment
Lighting 118
Tie-down rings 253
Cargo tie-down rings 253
Catalytic converter 285
CD changer* 213
CD changer* operation 215
CD player
Operating 131
CD* operation 213Center console 27
Front passenger front air bag off indica-
tor lamp 27, 76, 345
Lower part 28
Upper part 27
Centigrade
Setting temperature units 137
Central locking
Automatic 97
From inside 98
Switch 98
Switching on/off (control
system) 148
Unlocking from inside 98
Central locking switch 98
Changing
CDs 213
Key setting 148
Charcoal filter 191
Activating 191
Deactivating 192
Charging
Vehicle battery 402
CHECK ENGINE malfunction indicator
lamp 342

449 Index
Deactivating
Air conditioning (cooling) 192
Climate control 179
Air recirculation mode 190
Climate control 178
Alarm 87
Anti-theft alarm system 87
Automatic climate control* 183
Central locking (control system) 148
Charcoal filter 192
Climate control 173
Climate control system 175
Cruise control 248
Defrost 188
Defrosting
Climate control 177
ESP 84
Exterior lamps 111
Exterior lamps delayed shut-off 146
Front fog lamps 146
Hazard warning flasher 116
Headlamps 57
Immobilizer 86
Rear window defroster 170
Residual heat 193Seat heating* 106
Tow-away alarm 88
Deep water see Standing water 284
Defogging
Windshield 187
Climate control 176
Defrosting 188
Climate control 177
Delayed shut-off
Exterior lamps 146
Department of Transportation see DOT
Dialing
A number (telephone*) 154
Difficulties
While driving see Problems while
driving 55
With starting 49
Digital speedometer 129
Direction of rotation (tires) 303
Discharged battery
Jump starting 404
Disconnecting
Vehicle battery 402
Display
Messages in display 362Display elements
Audio system 196
Displays
Digital speedometer 129
Engine oil 293
Outside temperature 129
Selecting display for status
indicator 138
Service indicator 330
Showing malfunctions 132
Symbol messages 357
Text messages 349
Vehicle status messages 347
Distance to empty (range)
Calling up 152
Door control panel 30
Door handle 30
Door unlock
With Tele Aid* 268
Doors
Message in display 362
Opening from inside vehicle 94
Opening from outside 92
Opening from the outside 92
DOT 323

451 Index
Engine oil 292, 428
Adding 294
Additives 428
Checking level 292
Consumption 292
Display messages 363–364
Filler neck 295
Messages in display 293, 363–364
Viscosity 438
Engine oil level see Oil level
ESP 25, 83, 438
Messages in display 355–356
Switching off 84
Switching on 85
Warning lamp 343
ETD 438
Safety guidelines 64
ETD (Emergency tensioning device) 69
Ethanol fuel
At the gas station 288
Switching fuels 431
Exterior lamp switch 110
Exterior lamps
Delayed shut-off 146
Exterior rear view mirror
Parking position* for 150Exterior rear view mirrors
Adjusting 42
F
Fahrenheit
Setting temperature units 137
Fastening the seat belts 44
Fine adjustment
Cruise control 249
First aid kit 373
Flat tire 394
Inflating the spare tire 398
Lowering the vehicle 400
Mounting the spare wheel 394
Preparing the vehicle 394
Spare wheel 375
Tighten wheel bolts 400
Flexible fuel vehicles 431
At the gas station 288
Switching fuels 431
Flexible Service System (Canada
vehicles) 330, 438
Fog lamp, rear
Message in display 368
Switching on 113Fog lamps, front
Messages in display 366
Replacing bulbs 385, 386
Switching on 113
Front air bags 65
Front lamps
Bi-Xenon* type 388
Halogen-type 386
Messages in display 366–370
Replacing bulbs 385, 386
Switching on 110
Front passenger front air bag off indicator
lamp 27, 76, 345
Front seat backrest
Folding backrest back 40
Folding backrest forward 39
Front seat head restraints
Installing 102
Power seat* 103
Manual seat 102
Power seat* 103
Removing 102
Power seat* 103
Front seats
Heating* 106

452 IndexFSS see Flexible Service System (Canada
vehicles)
Fuel 289
Additives 430
Cruising range 432
E85 (Ethanol fuel) 432
Fuel reserve warning lamp 344
Gasoline additives 430
Premium unleaded gasoline 289,
427, 429
Requirements 429
Reserve warning 25
Switching (Flexible fuel vehicle) 431
Technical data 426
Fuel additives 430
Fuel cap
Message in display 365
Fuel consumption statistics
After start 151
Since last reset 151
Fuel filler flap 288
Locking 288
Opening in an emergency 379
Unlocking 288Fuel tank
Capacity 427
Filler flap 288
Fuels, coolants, lubricants etc.
Capacities 426
Functions (control system) 124, 127
Resetting 135
Fuse box 411
In trunk 412
Fuse chart 410
Fuse extractor 410, 412
Fuses 410
Aid for changing 410
Fuse box in engine compartment 411
Fuse box in passenger
compartment 411
Fuse box in trunk 412
Fuse chart 410
Fuse extractor 410, 412G
Garage door opener* 29, 269
Gasoline
Gasoline additives 430
Gasoline see Fuel 289
GAWR 323
Gear range 438
Automatic transmission* 161
Limiting 161
Shifting into optimal 161
Gear range limit
Canceling 161
Gear selector lever 25, 159
Cleaning 337
Position (Automatic
transmission*) 25, 159, 162
Global
Locking 92
Unlocking 92
Global Positioning System (GPS) 439
Glove box 23, 254
Closing 254
Opening 254
Good visibility 167
GPS 439
Gross Axle Weight Rating see GAWR