2004 MERCEDES-BENZ C320 4MATIC WAGON fuel consumption

115 Controls in detail
Control system
Menus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Menu6
Menu7
Standard display
AUDIO
NAVI*
Malfunction
memory
Settings
Trip computer
Telephone*
Commands/submenusCoolant
temperature display
Select radio station
Activate route
guidance
Call up malfunc-
tion messages
Reset to factory
settings
Fuel consumption
statistics after
start
Load phone
book
Digital speedometer
Operate CD
player*
Instrument clus-
ter submenu
Fuel consumption
statistics since
the last reset
Search for
name in
phone book
Call up FSS
Operate cassette
player
Lighting
submenu
Call up range
Check engine oil
level
Vehicle
submenuConvenience
submenu

134 Controls in detailControl systemSetting parking position for exterior rear
view mirror
Use the
MIRROR SETTING WHEN PARKING

function to select whether the passen-
ger-side exterior rear view mirror should be
turned downward during parking maneu-
vers when reverse gearR is engaged.
For additional information, see “Activating
exterior rear view mirror parking position”
(
page 147).

Move the selection marker to the CONVENIENCE
submenu using theæ
orç button.

Press buttonj ork repeatedly
until you see this message in the
display:
MIRROR SETTING WHEN
PARKING.
The selection marker is on the current
setting.

Pressæ orç to switch function ON or
OFF
.
Trip computer menu
Use the trip computer menu to call up
statistical data on your vehicle. The
following information is available:Function
Page
Fuel consumption statistics after
start
135
Fuel consumption statistics
since last reset
135
Call up range (distance to empty)
136

135 Controls in detail
Control system
Fuel consumption statistics after start
Press buttonÿ orè repeatedly
until you see the first function of the
Trip computer menu.

Press buttonj ork repeatedly
until you see this message in the
display:
AFTER START
.
1Distance driven since start
2Time elapsed since start
3Average fuel consumption since start
4Average speed since startFuel consumption since last reset

Press buttonÿ orè repeatedly
until you see the first function of the
Trip computer menu.

Press buttonj ork repeatedly
until you see this message in the
display:
AFTER RESET
.
1Distance driven since last reset
2Time elapsed since last reset
3Average fuel consumption since last
reset
4Average speed since last resetResetting fuel consumption statistics

Press buttonÿ orè repeatedly
until you see the first function of the
Trip computer menu.

Press buttonj ork repeatedly
until you see the reading that you want
to reset in the display.

Press and hold the reset button in the
instrument cluster (
page 22) until
the value is reset to 0.
iAll statistics stored since the last en-
gine start will be reset approximately
four hours after the SmartKey in the
starter switch is turned to position0 or
removed from the starter switch.
Resetting will not occur if you turn the
SmartKey back to position1 or2
within this time period.

239 Operation
Driving instructions
Driving instructions
Drive sensibly – save fuel
Fuel consumption, to a great extent,
depends on driving habits and operating
conditions.
To save fuel you should:

Keep tires at the recommended infla-
tion pressures.


Remove unnecessary loads.


Remove roof rack when not in use.


Allow engine to warm up under low
load use.


Avoid frequent acceleration and decel-
eration.


Have all maintenance work performed
at the intervals specified in the Service
Booklet and as required by the FSS.
Contact your authorized
Mercedes-Benz Center.
Fuel consumption is also increased by
driving in cold weather, in stop-and-go
traffic, on short trips and in hilly country.
Drinking and driving
PedalsPower assistance
Warning!
G
Drinking and driving and/or taking drugs
and driving are very dangerous combina-
tions. Even a small amount of alcohol or
drugs can affect your reflexes, perceptions
and judgement.
The possibility of a serious or even fatal
accident are greatly increased when you
drink or take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or
taking drugs.
Warning!
G
Keep driver’s foot area clear at all times.
Objects stored in this area may impair pedal
movement.Warning!
G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the
vehicle.

341 Technical data
Rims and Tires
Rims and Tires
Only use tires and rims which have been
specifically developed for your vehicle and
tested and approved by Mercedes-Benz.
Other tires and rims can have detrimental
effects, such as

poor handling characteristics


increased noise


increased fuel consumption
!Moreover, tires and rims not approved
by Mercedes-Benz may, under load,
exhibit dimensional variations and
different tire deformation characteris-
tics that could cause them to come into
contact with the vehicle body or axle
parts. Damage to the tires or the
vehicle may be the result.
iFurther information on tires and rims is
available at any authorized
Mercedes-Benz Center. A tire inflation
pressure table is located on the fuel
filler cap of the vehicle. The tire pres-
sure should be checked regularly and
should only be adjusted on cold tires.
Follow tire manufacturer’s mainte-
nance recommendation included with
vehicle.

351 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.

371 Index
Electrical outlet 221
Electrical system
Technical data 343
Electronic stability program (ESP) 358
Electronic Stability Program see ESP
Emergency call system* 222
Emergency calls
Initiating an emergency call 225
Telephone* 194
With Tele Aid* 224
Emergency operation
(Limp Home Mode) 144
Emergency operations
Closing sliding/pop-up roof 309
Locking the vehicle 306
Opening sliding/pop-up roof 309
Remote door unlock 229
Unlocking the vehicle 305
Emergency tensioning device (ETD) 358
Emergency tensioning device see ETD
Emission control 247
Emission control label 338Ending
A call (telephone) 137
Engine
Compartment 252
Message in display 276
Starting with automatic
transmission 43
Technical data 340
Turning off with the key 53
Engine cleaning 269
Engine compartment 252
Fuse box in 333
Hood 252
Engine malfunction
indicator lamp 23, 276
Engine number 358
Engine oil 254, 348
Adding 256
Additives 348
Checking level 254
Consumption 254
Display messages 291Filler neck 256
Messages in display 255, 291
Viscosity 358
Engine oil level see Oil level
ESP 23, 76, 358
Four wheel electronic
traction system with ESP 79
Messages in display 282
Switching off 77
Switching on 78
Synchronizing 282
Warning lamp 277
ETD 358
Safety guidelines 60
ETD (Emergency tensioning device) 65
Ethanol fuel
At the gas station 249
Switching fuels 350
Exterior lamp switch 100
Exterior lamps
Delayed shut-off 129
Exterior rear view mirrors
Adjusting 38
Parking position for 134

372 IndexF
Fahrenheit
Setting temperature units 125
Fastening the seat belts 40
Fine adjustment
Cruise control 204
First aid kit 300
Flat tire 318
Lowering the vehicle 322
Minispare wheel 302
Mounting the Minispare wheel 318
Preparing the vehicle 318
Flexible fuel vehicles 350
At the gas station 249
Switching fuels 350
Flexible Service System (FSS) 265
Flexible service system (FSS) 358
Fog lamp, rear 103, 311Fog lamps
Replacing bulbs 310
Fog lamps, front
Messages in display 294
Replacing bulbs 311
Switching on 102
Four wheel electronic
traction system (4MATIC) with ESP 79
4MATIC 79
Front airbags 61
Front lamps
Bi-Xenon type 313
Halogen-type 312
Messages in display 293–296
Replacing bulbs 310, 312
Front seat head restraints
Installing 91
Manual seat 91
Power seat* 92
Removing 91Front seats
Heater* 95
FSS 358
FSS (Flexible Service System) 265
Fuel 250
Additives 350
Cruising range 351
E85 (Ethanol fuel) 351
Fuel reserve warning lamp 278
Gasoline additives 350
Premium unleaded
gasoline 250, 347, 349
Requirements 349
Reserve warning 23
Switching (Flexible fuel vehicle) 350
Technical data 346
Fuel additives 350
Fuel consumption statistics
After start 135
Since last reset 135