2004 MERCEDES-BENZ C240 4MATIC Add coolant

354 Technical dataFuels, coolants, lubricants, etc.Gasoline additives
A major concern among engine
manufacturers is carbon build-up caused
by gasoline. Mercedes-Benz recommends
only the use of quality gasoline containing
additives that prevent the build up of
carbon deposits.
After an extended period of using fuels
without such additives, carbon deposits
can build up especially on the intake valves
and in the combustion area, leading to
engine performance problems such as:

Warm-up hesitation


Unstable idle


Knocking/pinging


Misfire


Power loss
Do not blend any specific fuel additives
with fuel. This only results in unnecessary
cost and may be harmful to engine
operation.Damage or malfunctions resulting from
poor fuel quality or from blending specific
fuel additives are not covered by the
Mercedes-Benz Limited Warranty.
Flexible Fuel Vehicles
Flexible Fuel Vehicles are identified by a
label reading Premium gasoline or E85
only! on fuel filler flap.
These vehicles are designed to operate on
premium unleaded gasoline or Ethanol
fuel (E85), or on any mixture of these two.
Ethanol fuel (E85) is a mixture of
approximately 85% Ethanol and 15%
unleaded gasoline.Switching fuels
For best performance and driveability it is
recommended to use either one or the
other fuel. A refueling pattern that
alternates between the two different fuels
should be avoided if possible.
Warning!
G
Ethanol fuel (E85) and its fumes are highly
flammable, poisonous and burn easily. Etha-
nol fuel can cause serious injuries if ignited
or if you come into contact with it or inhale
fumes of it. Avoid inhalation of Ethanol
fumes and skin contact with Ethanol. Extin-
guish all open flames before fueling. Never
smoke or create sparks close to Ethanol.

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

Fuel level is below half full.


Fuel level is above reserve (fuel 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
before the engine has fully adapted to the
different 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
engine 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 (Canada only) is
recommended (see your authorized
Mercedes-Benz Center for further
information). Rough idling may also be
experienced at such temperatures before
the engine is fully warmed up.
Hot weather performance
At ambient temperatures above 95°F
(35°C) start times may increase and be
accompanied 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
gasoline operation.
Maintenance
Please inform your Mercedes-Benz Center
if you use or have used E85 fuel when your
vehicle is delivered for maintenance or
repairs.
!E85 fuel is unsuitable for use when
ambient temperatures fall below 14°F
(-10°C).
iUse of E85 may reduce your driving
range.

367 Index
A
ABS 23, 72, 361
ABS control 72
Malfunction indicator lamp 274
Messages in display 284
Accelerator position,
automatic transmission* 147
Accident
In case of 49
Activating
Air conditioning (cooling)
Automatic climate control* 170
Climate control 160
Air recirculation mode
Automatic climate control* 167
Climate control 158
Anti-theft alarm system* 78
Automatic climate control* 163
Central locking (control system) 133
Charcoal filter 169
Climate control 155Climate control system 159
Defrosting
Automatic climate control* 167
Climate control 158
Easy-entry/exit feature* 134
ESP 76
Exterior headlamps 46
Exterior lamps 103
Exterior rear view mirror
parking position* 150
Hazard warning flasher 106
Headlamps 46
High beams 106
Ignition 31
Immobilizer 52
Rapid seat heating* 98
Rear fog lamp 104, 105
Rear window defroster 153
Residual heat 171
Seat heating* 98
Tow-away alarm* 80
Windshield wipers 48Adding
Coolant 257
Engine oil 255
Additional turn signals 310
Adjustable air vents,
rear passenger compartment
Automatic climate control* 172
Climate control 161
Adjusting 32
Air distribution
Automatic climate control* 166
Climate control 157
Air volume
Automatic climate control* 166
Climate control 157
Backrest contour 97
Backrest side bolsters 97
Backrest tilt
Manual seat 33
Power seat* 35
Exterior rear view mirrors 38

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

374 IndexCoolant 257, 356
Adding 257
Anticorrosion/antifreeze
quantity 356
Capacities 350
Checking level 257
Messages in display 287–289
Temperature 248
Temperature display 110
Coolant level
Checking 257
Cruise control 206, 362
Canceling 207
Driving downhill 207
Driving uphill 207
Fine adjustment 208
Message in display 290
Setting current speed 207
Setting speeds 208
Cruise control lever 206
Cruising range, fuel 355Cup holder
Cleaning 271
In front of seat armrest 217
In rear seat armrest 218
Customer Assistance Center see CAC
D
Daytime running lamp mode 104
Setting 129
Deactivating
Air conditioning (cooling)
Automatic climate control* 170
Climate control 160
Air recirculation mode
Automatic climate control* 168
Climate control 159
Alarm 79
Anti-theft alarm system* 79
Automatic climate control* 163
Central locking (control system) 133
Climate control 155
Climate control system 159Cruise control 207
Defrosting
Automatic climate control* 167
Climate control 158
Engine with the SmartKey 52
ESP 75
Exterior lamps 103
Exterior lamps delayed shut-off 131
Front fog lamps 131
Hazard warning flasher 106
Headlamps 51
Interior lighting delayed shut-off 132
Rapid seat heating* 98
Rear window defroster 153
Seat heating* 98
Tow-away alarm* 80
Deep water see Standing water
Defogging
Windshield
Automatic climate control* 166
Climate control 157

378 IndexFSS 265, 362
Fuel 250
Additives 354
Cruising range 355
E85 (Ethanol fuel) 355
Fuel reserve warning lamp 278
Gasoline additives 354
Message in display 293
Premium unleaded
gasoline 250, 350, 353
Requirements 353, 354
Reserve warning 23
Switching (Flexible Fuel Vehicle) 354
Technical data 350
Fuel additives 354
Fuel cap
Message in display 293
Fuel consumption statistics
After start 137
Since last reset 137Fuel filler flap 249
Locking 249
Opening in an emergency 308
Unlocking 249
Fuel requirements 353
For ethanol fuel 354
Fuel reserve tank
Message in display 293
Fuel tank
Capacity 350
Filler flap 249
Fuels, coolants, lubricants etc.
Capacities 349
Functions (control system) 114, 117
Resetting 124
Fuse box
Auxiliary in trunk 334
In engine compartment 333
In passenger compartment 332Fuse chart 332
Fuse extractor 334
Fuses 332
Auxiliary fuse box in trunk 334
Fuse box in engine compartment 333
Fuse box in
passenger compartment 332
Fuse chart 332
Fuse extractor 334
Spare fuses 334
G
Garage door opener 27, 231
Gasoline additives 354
Gasoline see Fuel
Gear range 362
Automatic transmission* 144
Limiting 144
Shifting into optimal 143
Gear range limit
Canceling 143

393 Index
Technical data
Air conditioning refrigerant 352
Brake fluid 352
Coolant 350
Coolants 356
Electrical system 346
Engine oil additives 352
Engine oils 352
Flexible fuel vehicles 354
Fuel requirements 353
Fuels 350
Gasoline additives 354
Lubricants 349
Main dimensions 347
Premium unleaded gasoline 353
Rims and tires 342
Weights 348
Windshield washer 351
Windshield washer and headlamp
cleaning* system 351, 358Tele Aid* 223
Emergency calls 224
Information 227
Initiating an emergency call
manually 226
Message in display 299
Remote door unlock 230
Roadside assistance 226
SOS button 226
Stolen vehicle tracking services 230
System self-check 224
Tele Aid System 223, 365
Upgrade signals 229
Telematics* 365
Telephone* 24, 222
Answering a call 139
Dialing a number from
the phone book 140
Emergency call 198
Ending a call 139
Hands-free microphone 27Loading phone book 140
Message in display 299
Operation 138, 193
Redialing 140
Signal strength 139
Temperature
Display mode 127
Grades of tires 360
Setting interior temperature
Automatic climate control* 165
Climate control 156
Setting units in display 127
Tires 262
Tightening torque
(Wheel bolts) 321, 365
Tilt
Head restraint
Manual seat 34
Power seat* 36
Time
Setting hours 126
Setting minutes 126