2004 MERCEDES-BENZ C CLASS COUPE coolant level

335
Technical data
Fuels, coolants, lubricants, etc.
When switching fuels, make sure:

Fuel level is below half full.


Fuel level is above reserve (reserve
warning lamp is not lit).


Amount of added fuel is more than
5 gallons (20 liters).


Ignition is off during refill.


Immediately after refueling engine is
started and operated for at least five
minutes.
These precautions and recommendations
are supposed to prevent any difficulties
when starting and operating the engine
which otherwise may be experienced be-
fore the engine has fully adapted to the dif-
ferent fuel.
If in spite of these recommendations the
engine does not perform properly, adding
more gasoline (at least 3 gallons
[12 liters]) to the fuel may improve the en-
gine behavior. Cold weather performance
It is possible that starting times will signif-
icantly increase at temperatures below
32°F (0°C). At low temperatures the use
of a block heater is recommended (see
your authorized Mercedes-Benz Center for
further information). Rough idling may also
be experienced at such temperatures be-
fore the engine is fully warmed up.
Hot weather performance
At ambient temperatures above 95°F
(35°C) start times may increase and be ac-
companied by a rough idle following the
start.
Cruising range
E85 fuel contains less energy per gallon
than gasoline. To ensure that engine per-
formance with Ethanol fuel is similar to
that when using gasoline, the engine must
burn more Ethanol fuel. As a result, it is to
be expected that the fuel consumption will
increase when using E85 compared to gas-
oline operation.
Maintenance
Please inform your Mercedes-Benz Center
if you use or have used E85 fuel when your
vehicle is delivered for maintenance or re-
pairs.
!E85 fuel is unsuitable for use when am-
bient temperatures fall below 14°F
(-10°C).
iUse of E85 may reduce your driving
range.

336 Technical dataFuels, coolants, lubricants, etc.Coolants
The engine coolant is a mixture of water
and anticorrosion/antifreeze, which pro-
vides:

Corrosion protection


Freeze protection


Boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximately -22°F (-30°C) and corro-
sion protection.
If the antifreeze mixture is effective to
-22°F (-30°C), the boiling point of the cool-
ant in the pressurized cooling system is
reached at approximately 266°F (130°C). The coolant solution must be used
year-round to provide the necessary corro-
sion protection and increase boil-over pro-
tection. Refer to Service Booklet for
replacement interval.
Coolant system design and coolant used
stipulate the replacement interval. The
replacement interval published in the Ser-
vice Booklet is only applicable if MB 325.0
anticorrosion/antifreeze solution or other
Mercedes-Benz approved products of
equal specification (see Factory Approved
Service Products pamphlet) are used to re-
new the coolant concentration or bring it
back up to the proper level.
To provide important corrosion protection,
the solution must be at least 45% anticor-
rosion/antifreeze (equivalent to freeze
protection to approx. - 22°F [-30°C]).If you use a solution that is more than 55%
anticorrosion/antifreeze (freeze protec-
tion to approx. - 49°F [-45°C]), the engine
temperature will increase due to the lower
heat transfer capability of the solution.
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 your authorized Mercedes-Benz
Center.

351
Index
Checking
Coolant level 235, 241
Oil level 235, 237
Tire inflate pressure 235
Vehicle lighting 235
Child safety 65 Airbags 58
Infant and child restraint systems 62, 65
LATCH child seat mounts 70
Child seat mounts see LATCH child seat mounts 70
Cigarette lighter 204
Cleaning Cup holder 255
Gear selector lever 255
Hard plastic trim items 255
Headlamps 148
Headliner and shelf below rear window 255
Instrument cluster 255
Leather upholstery 256
Light alloy wheels 254 MB Tex upholstery 256
Plastic and rubber parts 256
Seat belts 255
Steering wheel 255
Upholstery 256
Windows 254
Windshield 50
Wiper blades 254
Wood trims 256
Climate control 150 Adjusting 153
Defogging windshield 153
Defrosting 154
Rear window defroster 149
Setting the temperature 153
Clock 23, 122
Closing Glove box 200
Hood 237
power window with SmartKey 188 Roller sunblind for the
sliding/pop-up roof 189
Side windows 187
Sliding/pop-up roof 190, 292
Trunk lid 86
Windows 186
Windows with SmartKey 188
Closing sliding/pop-up roof In an emergency 292
Cockpit 20, 341
Cockpit management and data system (COMAND*) 342
Collapsible tire 342
COMAND* 342
COMAND* see separate operating instruc- tions
Combination switch 102 High beam flasher 102
Turn signals 48
Windshield wipers 49
Consumer information 339
Control and operation of radio transmitters 230
Control system 109, 342

352 Index
AUDIO menu 114
Convenience submenu 129
Display digital speedometer 114
Functions 110, 113
Instrument cluster submenu 122
Lighting submenu 125
Malfunction memory menu 117
Menus 112, 113, 343
Multifunction display 109
Multifunction steering wheel 110
NAV menu 117
Selecting radio system 115
Settings menu 118
Standard display menu 114
Submenus 111, 113
TEL* menu 134
Trip computer menu 132
Vehicle submenu 128
Convenience submenu 129 Activating easy-entry/exit feature 130 Setting key dependency 131
Setting parking position for
exterior rear view mirror 132
Coolant 241, 336 Adding 241
Anticorrosion/antifreeze quantity 336
Capacities 330
Checking level 241
Messages in display 271, 272
Temperature 232
Temperature indicator 106
Warning lamp 272
Coolant level Checking 235, 241
Cruise control 194, 342 Canceling 195
Driving downhill 195
Driving uphill 195
Fine adjustment 196
Message in display 274
Saving current speed 195 Setting speeds 196
Cruise control lever 194
Cruising range, fuel 335
Cup holder Cleaning 255
In front seat armrest 201
Customer Assistance Center (CAC) 341
D
Daytime running lamp mode 100 Setting 125, 126
Deactivating Air conditioning (cooling) 156
Air recirculation mode 155
Alarm 79
Anti-theft alarm system 79
Central locking (control system) 129
Climate control 151
Cruise control 195
Defrost 154
ESP 76

361
Index
Mechanical key 288, 289
Memory function 95, 343
Recalling positions from memory 96
Storing exterior rear view mirror parking positions 97
Storing key dependent settings 96
Menus 110 AUDIO 114
Control system 343
In control system 112, 113
Malfunction memory 117
NAV 117
Settings menu 118
Standard display 114
Submenus 111
TEL* 134
Trip computer 132
Microphone Hands-free microphone 27
Miles/kilometers in speedometer Setting 124 Mirrors
Adjusting 39
Automatic antiglare for rear view mirror 146
Exterior rear view mirror 40
Exterior rear view mirror parking positions 132
Interior rear view mirror 39
Storing exterior rear view mirror parking position 97
MON 234
MON (Motor Octane Number) 343
Mph or km/h in speedometer 124
Multifunction display 109, 343 Displaying gear range 141
Selecting language 124
Standard display 113
Multifunction display messages ABS 268
BAS 265
Battery 269
Brake fluid 270
Brake pads 270 Check engine 260
Check gas cap 277
Coolant 272
Coolant level 271
Cruise control 274
Display 274
Doors 274
Engine 260
Engine oil 276
ESP 266
Fuel reserve tank 277
Hood 277
Key 277
Lamps 277, 279–??
Parking brake 269
Steering column
not properly locked 282
Steering gear oil level 282
Tele Aid* 283
Telephone* 283
Trunk lid 283