fuel consumption MERCEDES-BENZ C-Class 2011 W204 Owner's Manual

Child-proof locksRear doors ....................................... 60
Children
In the vehicle ................................... 55
Restraint systems ............................ 56
Child seat
Automatic recognition .....................46
Automatic recognition/air bag
deactivation, self-test ......................48
Display message ............................ 185
LATCH-type (ISOFIX ) child seat
anchors ............................................ 58
Special seat belt retractor ...............58
Top Tether ....................................... 59
Troubleshooting ............................... 49
Cigarette lighter ................................ 224
Classification system for
occupants (OCS) Faults ............................................... 45
Operation ......................................... 41
System self-test ............................... 44
Climate control
Activating/deactivating .................122
Activating/deactivating air-
recirculation mode .........................125
Controlling automatically ...............123
Cooling with air dehumidification ..122
Defrosting the windshield ..............124
Demisting the windows .................. 125
Dual-zone automatic climate
control ........................................... 121
Important safety information .........120
Indicator lamp ................................ 123
Maximum cooling .......................... 124
Problems with "cooling with air
dehumidification" ........................... 123
Problems with the rear window
heating .......................................... 125
Refrigerant ..................................... 309
Setting the air distribution .............123
Setting the airflow .........................124
Setting the air vents ......................126
Setting the temperature ................123
Switching the MONO function on/
off .................................................. 124
Switching the rear window
heating on/off ............................... 125
Clock (on-board computer) ............... 179Cockpit ................................................. 25
Combination switch .......................... 108
Compass ............................................ 235
Consumption statistics (on-board
computer) .......................................... 170
Convenience closing feature .............. 84
Convenience opening feature ............ 84
Coolant (engine) Checking the level .........................240
Display message ............................ 194
Notes ............................................. 310
Temperature (on-board computer) . 171
Temperature gauge ........................ 166
Warning lamp ................................. 210
Cooling
see Climate control
Cornering light (display message) ... 191
Crash-responsive emergency
lighting ............................................... 111
Cruise control Cruise control lever .......................156
Display message ............................ 197
Function/notes ............................. 156
Cup holder ......................................... 220
Center console .............................. 221
Rear compartment .........................221
Current fuel consumption (on-
board computer) ............................... 170
Customer Assistance Center (CAC) ............................................... 21
Customer Relations Department ....... 21
D
Dashboard see Cockpit
Date (on-board computer) ................ 179
Daytime running lamps Display message ............................ 194
Switching on/off (on-board
computer) ...................................... 180
Delayed switch-off
Exterior lighting (on-board
computer) ...................................... 180
Interior lighting (on-board
computer) ...................................... 180
Digital speedometer ......................... 171
Display (cleaning instructions) ........ 247
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Emergency spare wheelStorage location ............................ 254
Emergency starting ........................... 266
Emergency tensioning device Function ........................................... 54
Safety guidelines ............................. 35
Emissions purification
Service and warranty information ....18
Engine
Irregular running ............................ 136
Starting problems ..........................136
Starting the engine with the key ....133
Starting with KEYLESS-GO .............133
Switching off .................................. 149
Warning lamp Check Engine ..........210
Engine electronics
Malfunction .................................... 136
Engine number .................................. 304
Engine oil Adding ........................................... 240
Checking the oil level ..................... 239
Display message ............................ 196
Lubricant additives ........................309
Notes about oil grades ................... 308
Temperature (on-board computer) . 171
Viscosity ........................................ 309
ESC (Electronic Stability Control)
see ESP ®

ESP ®
(Electronic Stability
Program) Activating/deactivating (AMG
vehicles) .......................................... 65
Activating/deactivating (except
AMG vehicles) .................................. 64
Activating/deactivating (on-
board computer) ............................ 178
AMG menu (on-board computer) ...171
Display message ............................ 184
ETS/4ETS ........................................ 63
Important safety information ...........63
Warning lamp ................................. 207
ETS/4ETS (Electronic Traction
System) ................................................ 63
Exhaust check ................................... 151
Exhaust tail pipe (cleaning
instructions) ...................................... 247Exterior lighting
see Lights
Exterior mirrors
Adjusting ....................................... 100
Dipping (automatic) .......................101
Folding in/out (automatically) .......101
Folding in/out (electrically) ...........100
Folding in when locking (on-board
computer) ...................................... 182
Out of position ............................... 101
Setting ........................................... 100
Storing settings (memory
function) ........................................ 102
Storing the parking position ..........101
Exterior view ........................................ 24
F
First-aid kit ......................................... 253
Flat tire Changing a wheel/mounting the
spare wheel ................................... 255
MOExtended run-flat system .........259
Preparing the vehicle .....................254
Raising the vehicle .........................256
Floormat ............................................. 236
Front fog lamp (display message) ... 193
Fuel Additives ........................................ 308
Notes ............................................. 306
Premium-grade unleaded gasoline . 306
Refueling ........................................ 145
Specifications ................................ 307
Troubleshooting ............................. 148
Fuel consumption
Current (on-board computer) .........170
Notes ............................................. 150
Fuel filler cap (display message) ..... 197
Fuel filler flap Emergency release ........................146
Opening/closing ............................ 146
Fuel level
Calling up the range (on-board
computer) ...................................... 170
Fuses
Dashboard fuse box .......................267
Fuse allocation chart .....................267
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Service Booklet or indicated by the service
interval indicator.
Fuel consumption is also increased by driving
in cold weather, in stop-and-go traffic, on
short trips and in mountainous areas.
Drinking and driving
GWarning
Drinking and driving and/or taking drugs and
driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and
judgment.
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.
Pedals
GWarning
Make sure absolutely no objects are
obstructing the pedals' range of movement.
Keep the driver's footwell clear of all
obstacles. If there are any floormats or
carpets in the footwell, make sure that the
pedals still have sufficient clearance.
During sudden driving or braking maneuvers,
the objects could get caught between the
pedals. You could then no longer brake or
accelerate. This could lead to accidents and
injury.
Coasting with the engine switched off
GWarning!
There is no power assistance for the steering
and the brake when the engine is not running.
Steering and braking requires significantly
more effort and you could lose control of the
vehicle and cause an accident as a result.
Do not turn off the engine while the vehicle is
in motion.
Exhaust checkGWarning
Inhalation of exhaust gas is hazardous to your
health. All exhaust gas contains carbon
monoxide (CO), and inhaling it can cause
unconsciousness and possible death.
Do not run the engine in confined areas (such
as a garage) which are not properly ventilated.
If you think that exhaust gas fumes are
entering the vehicle while driving, have the
cause determined and corrected
immediately. If you must drive under these
conditions, drive only with at least one
window fully open at all times.
Certain engine systems are designed to keep
the level of poisonous components in exhaust
fumes within legal limits.
These systems only work optimally if they are
maintained exactly in accordance with the
manufacturer's specifications. For this
reason, all work on the engine must be carried
out by qualified and authorized Mercedes-
Benz technicians.
The engine settings must not be changed in
any circumstances. Furthermore, all specific
service work must be carried out at regular
intervals and in accordance with the
Mercedes-Benz service requirements. Details
can be found in the Service Booklet.
Brakes
Important safety notes
GWarning
On slippery road surfaces, never downshift in
order to obtain braking action. This could
result in drive wheel slip and reduced vehicle
control. Your vehicle's ABS will not prevent
this type of loss of control.
GWarning
Make sure that you do not endanger other
road users when you apply the brakes.
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The Audio and Tel menus differ slightly in vehicles with an audio system and vehicles with
COMAND. The examples given in this Operator's Manual apply to vehicles equipped with
COMAND.Trip menu
Standard displayXPress and hold the % button on the
steering wheel until the Trip menu with
odometer : and trip odometer ; is
shown.
Trip computer "From start" or "From
reset"
The values in the From Start submenu are
calculated from the start of a journey whilst
the values in the From Reset submenu are
calculated from the last time the submenu
was reset.
XPress = or ; on the steering wheel
to select the Trip menu.XPress 9 or : to select From Start
or From Reset .
Trip computer "After start" (example)
:Distance;Time=Average speed?Average fuel consumptionThe From Start trip computer is reset
automatically when
R the ignition has been switched off for more
than 4 hours.
R 999 hours have been exceeded.
R 9999 miles have been exceeded.
The From Reset trip computer is
automatically reset if the trip exceeds
9999 hours or 99,999 miles.
You can select km or miles as the unit of
measurement for distance ( Y page 178).
Displaying the range and current fuel
consumptionXPress = or ; on the steering wheel
to select the Trip menu. XPress the 9 or : button to select
current fuel consumption and approximate
range.:Current fuel consumption 19;Approximate range
Approximate range
; is calculated
according to current driving style and the
amount of fuel in the tank. If there is only a
small amount of fuel left in the fuel tank, the
display shows a vehicle being refueled C
instead of range ;.
19
Not in AMG vehicles.170Menus and submenusOn-board computer and displays
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Distribution of the vehicle occupants
This is the distribution of vehicle occupants
over designated seat positions in a vehicle.
Maximum permissible payload
weight
Nominal load and luggage load plus
68 kilograms (150 lb) multiplied by the
number of seats in the vehicle.
Wheel/tire combinations
Points to remember
GWarning
Observe the "Important safety notes"
( Y page 270).
! For safety reasons, Mercedes-Benz
recommends that you only use tires,
wheels and accessories which have been
approved by Mercedes-Benz specifically
for your vehicle.
These tires have been specially adapted for
use with the control systems, such as ABS
or ESP ®
, and are marked as follows:
R MO = Mercedes-Benz Original
R MOE = Mercedes-Benz Original Extended
(tires with run-flat characteristics)
R MO1 = Mercedes-Benz Original (only
certain AMG tires)
Mercedes-Benz Original Extended tires
may only be used on wheels that have been
specifically approved by Mercedes-Benz.
Only use tires, wheels or accessories
tested and approved by Mercedes-Benz.
Certain characteristics, e.g. handling,
vehicle noise emissions or fuel
consumption, may otherwise be adversely
affected. In addition, when driving with a
load, tire dimension variations could cause
the tires to come into contact with the
bodywork and axle components. This could
result in damage to the tires or the vehicle.
Mercedes-Benz accepts no liability for
damage resulting from the use of tires,
wheels or accessories other than those
tested and approved.
Further information about tires, wheels and
approved combinations can be obtained
from any authorized Mercedes-Benz
Center.
i The Tire and Loading Information placard
with the recommended tire pressures is
attached to the B-pillar on the driver's side.
Further information about driving at high
speeds or driving with vehicle loads that are
lighter than the maximum vehicle load can
be found in the tire pressure table on the
inside of the fuel filler flap. Check tire
pressures regularly, and only when the tires
are cold. Follow the tire manufacturer's
maintenance recommendations in the
vehicle document wallet.
Further information on recommended tire
pressures including tire pressures for specific
driving situations, see ( Y page 272).
i Notes on the vehicle equipment – always
equip the vehicle:
R with tires of the same size on a given axle
(left/right)
R with the same type of tires at a given time
(summer tires, winter tires, MOExtended
tires)
i The following pages contain information
on approved wheel rims and tire sizes for
equipping your vehicle with winter tires.
Winter tires are not available at the factory
as standard equipment or optional extras.
If you wish to fit approved winter tires to
your vehicle, rims of appropriate size are
also required, as the sizes of the approved
winter tires can differ from those of the
original tires. This is dependent on the
model and the equipment installed at the
factory.
Tires and wheel rims as well as additional
information are available from a qualifiedWheel/tire combinations293Tires and wheelsBA 204 USA, CA Edition A 2011; 1; 5, en-UShereepeVersion: 3.0.3.62010-05-20T09:17:30+02:00 - Seite 293Z

into contact with your skin. Before refueling,
extinguish all naked flames. Never allow
sparks or smoking materials near ethanol.
Changing the fuel type
For best performance and driveability, it is
recommended that you use either one or the
other fuel. Avoid alternating regularly
between the two different types of fuel.
When changing the fuel type, make sure:
R the fuel level is below half full.
R the fuel level is above the reserve level. This
is identifiable by the fuel tank reserve
warning lamp not being lit.
R you add more than 5 gallons (20 liters) of
fuel.
R before refueling, you switch off the engine.
R the engine is started and operated for at
least five minutes immediately after
refueling.
These precautions and recommendations
should 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, add at
least 3 gallons (12 liters) of gasoline. This may
improve the running of the engine.
Fuel consumption
Ethanol fuel (E85) contains less energy per
gallon than gasoline. To ensure that the
engine performance with ethanol fuel (E85) 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
ethanol fuel (E85), compared to gasoline.
Maintenance
When you bring your vehicle for maintenance
or repairs, please inform your authorized
Mercedes-Benz Center if you use or have
used ethanol fuel (E85).Low outside temperatures
It is possible that the time required for the
starting procedure will significantly increase
at outside temperatures below 32 ‡ (0 †).
At low outside temperatures, Mercedes-Benz
recommends the use of an auxiliary heater.
For further information, contact an
authorized Mercedes-Benz Center.
Rough idling may also be experienced at low
outside temperatures until the engine is fully
warmed up.
Ethanol fuel (E85) is unsuitable for use when
outside temperatures fall below 14 ‡
(-10 †).
High outside temperatures
At outside temperatures above 95 ‡ (35 †),
the time required for the starting procedure
may increase and be accompanied by rough
idling following the start.
Fuel requirements
Use only premium-grade unleaded gasoline.
The octane number should be at least 91.
Details can be found on the gas pump. The
octane number is the average value of the
Research Octane Number (RON) and Motor
Octane Number (MON): (RON + MON) / 2,
also known as knock resistance.
Reformulated Gasoline (RFG) and/or
unleaded gasoline with additives can be used
if the concentration of the additives in the fuel
does not exceed 10%, e.g.:
R Ethanol
R TAME
R ETBE
R IPA
R TBA
For MTBE, the concentration should not
exceed 15%.
The concentration of methanol in gasoline
including other additives must not exceed 3%.
Using mixtures of methanol and ethanol is not
permitted. Gasohol, a mixture of 10% ethanol
and 90% unleaded gasoline can be used.
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