2008 MERCEDES-BENZ C300 4MATIC fuel consumption

155 Controls in detail
Control system
Menus, submenus and functions
Menu1Menu2Menu3Menu4Menu5Menu6
Trip computerNavi*AudioTel*ServiceSettings
(page 156)(page 158)(page 158)(page 160)(page 164)(page 165)
Commands/submenus
Standard displayShow route guid-
ance instructions,
current direction
traveledSelecting radio
stationTo take a callCall up vehicle mal-
function, warning and
system status mes-
sages stored in mem-
ory
1
1The vehicle status message memory menu is only displayed if there is a message stored.
Reset to factory
settings
Fuel consumption
statistics since startSelecting satellite
radio station*Select a phone
book entryTire Pressure Monitor-
ing System (TPMS)
(USA only)Instrument cluster
submenu
Fuel consumption
statistics since the
last resetOperating
CD player* RedialRun Flat Indicator
(Canada only)
Distance to emptyCall up maintenance
service display
Digital speed-
ometer or outside
temperature

156 Controls in detail
Control system
Trip menu
In the
Trip menu, you can show an addi-
tional display for the speedometer and call
up or reset your vehicle’s statistical data.
The following information is available:Standard display
In the standard display, the trip odometer
and the main odometer are shown in the
multifunction display.
1Trip odometer
2Main odometer
If another display is shown instead of the
standard display:
Press ( or & to select the Trip
menu.
or
Press buttonL repeatedly until the
standard display appears.
or
Press and hold buttonL until the
standard display appears.Fuel consumption statistics since start
Press ( or & to select the Trip
menu.
Press % to select From Start.
1Distance driven since start
2Time elapsed since start
3Average speed since start
4Average fuel consumption since start
FunctionPage
Standard display156
Fuel consumption statistics
since start156
Fuel consumption statistics
since last reset157
Distance to empty157
Digital speedometer158
Resetting157
iAll values that are based on the last start are
reset when you turn off the vehicle’s engine for
more than four hours.
If you turn the SmartKey to position1 or2 again
during this time, the values will not be reset.
After 999 hours or 9999 miles (kilometers), the
fuel consumption statistics after start are auto-
matically reset.

157 Controls in detail
Control system
Fuel consumption statistics since last
reset
Press ( or & to select the Trip
menu.
Press % or $ to select Since
Reset
.
1Distance driven since last reset
2Time elapsed since last reset
3Average speed since last reset
4Average fuel consumption since last
resetResetting values
You can reset the values for the following
functions:

Trip odometer

Fuel consumption statistics since start

Fuel consumption statistics since last
reset
Press ( or & to select the Trip
menu.
Press % or $ to select the func-
tion you wish to reset.
Press#.
Example illustration: Reset fuel consump-
tion statistics since start
Press% to select Yes.
Press# to confirm.Distance to empty
Press ( or & to select the Trip
menu.
Press % or $ to select Range.
With the ignition switched on, the
calculated remaining driving range
based on the current fuel tank level
appears in the multifunction display.
1Approximate distance
When the reserve tank is half empty, only
the fuel pump symbol W is displayed.
iAfter 9999 hours or 99 999 miles (kilome-
ters), the fuel consumption statistics since last
reset are automatically reset.

311 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 tire
inflation 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 Mainte-
nance Booklet and as required by the
Maintenance System. Contact an au-
thorized Mercedes-Benz Center.
Fuel consumption is also increased by driv-
ing in cold weather, in stop-and-go traffic,
on short trips, and in hilly area.
Drinking and drivingPedals
Power 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 judgment.
The possibility of a serious or even fatal ac-
cident 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
Make sure absolutely no objects are ob-
structing the pedals’ range of movement.
Keep the driver’s footwell clear of all obsta-
cles. If there are any floormats or carpets in
the footwell, make sure the pedals still have
sufficient clearance. Otherwise this could
lead to accidents or injury.
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 ve-
hicle.

467 Technical data
Rims and tires
Rims and tires
!Only use tires which have been tested and
approved for your vehicle by Mercedes-Benz.
Tires approved by Mercedes-Benz are developed
to provide best possible performance in conjunc-
tion with the driving safety systems on your
vehicle such as ABS or ESP
®. Tires specially
developed for your vehicle and tested and
approved by Mercedes-Benz can be identified by
finding the following on the tire’s sidewall:

MO = Mercedes-Benz Original equipment
tires
Using tires other than those approved by
Mercedes-Benz may result in damage that is not
covered by the Mercedes-Benz Limited
Warranty.
!Using tires other than those approved by
Mercedes-Benz 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 dimen-
sional variations and different tire deformation
characteristics 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 placard with the recommended tire
inflation pressures is located on the driver’s door
B-pillar (
page 334). Some vehicles may have
supplemental tire inflation pressure information
for driving at high speeds (
page 340) or for
vehicle loads less than the maximum loaded
vehicle condition (
page 348). If such informa-
tion is provided, it can be found on the tire infla-
tion label located on the inside of the fuel filler
flap. The tire inflation pressure should be checked
regularly and should only be adjusted on cold
tires. Follow tire manufacturer’s maintenance
recommendation included with vehicle.
iThe following pages also list the approved
wheel rim and tire sizes for equipping your
vehicles with winter tires. Winter tires are not
available as standard or optional factory equip-
ment, but can be purchased from an authorized
Mercedes-Benz Center.
Depending on vehicle model and the standard or
optional factory-equipped wheel rim/tire
configuration on your vehicle (Appearance
Package, Sport Package etc.), equipping your
vehicle with winter tires approved for your
vehicle model may also require the purchase of
two or four wheel rims of the recommended size
for use with these winter tires. Contact an autho-
rized Mercedes-Benz Center for more informa-
tion.

483 Technical data
Fuels, coolants, lubricants, etc.
Switching fuels
For best performance and driveability it is
recommended to use either one or the oth-
er fuel. A refueling pattern that alternates
between the two different fuels should be
avoided if possible.
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
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.
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 authorized
Mercedes-Benz Center if you use or have
used E85 fuel when your vehicle is deliv-
ered for maintenance or repairs.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 an
authorized Mercedes-Benz Center for fur-
ther 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.iUse of E85 may reduce your driving range.
!E85 fuel is unsuitable for use when ambient
temperatures fall below 14°F (-10°C).

494 Index
Fuel cap
Message in display 406
Fuel consumption statistics
From start 156
Resetting 157
Since last reset 157
Fuel filler flap 322
Locking/Unlocking 322
Fuel tank
Capacity 478
Filler flap 322
Fuels, coolants, lubricants etc.
Capacities 476
Fuses 456
Fuse box in engine compartment 457
Fuse box in passenger
compartment 457
Fuse box in trunk 458
Replacing 456G
Garage door opener 303
Gasoline also see Fuel
GAWR 357
Gear range
Automatic transmission 143
Limiting 143
Shifting into optimal 145
Gear selector lever 126, 137
Messages in display 392
Position, Automatic
transmission* 139, 151
Shifting procedure 139
Gear selector lever one-touch gearshifting
Automatic transmission* 145
Gear selector lever* 138
Gearshift pattern 138
Lock 127
Position, Automatic
transmission* 140
Unlocking in an emergency 426
Glove box 284
Aux socket 220
Power outlet 293
Gloves, Vehicle tool kit 420GPS
Tele Aid* 295
Gross Axle Weight Rating see GAWR
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GVW 357
GVWR 357