2018 MERCEDES-BENZ C-CLASS SEDAN fuel consumption

Rthe vehicle is stationary and the brake pedal is
depressed (left foot).
Rthe transmission is in positionh
Activating RACE START
iWhen manual mode (Ypage 152) is active,
the transmission automatically shifts up to
RACE START in the drive program. This func-
tion supports maximum acceleration with
RACE START. After going through an acceler-
ating process once from a stationary position, this function is automatically deactivated.
XDepress the brake pedal with your left foot
and keep it depressed.
XPull and hold both steering wheel paddle shift-
ers (Ypage 152).
The RACE START Confirm: Paddle UP
Cancel: Paddle DOWNmessage appears in
the multifunction display.
XRelease both steering wheel paddle shifters
(Ypage 152).
iIf the activation conditions are no longer ful-
filled, RACE START is canceled. The RACE
START Canceledmessage appears in the
multifunction display.
XTo cancel: pull the left steering wheel paddle
shifter (Ypage 152).
or
XTo confirm: pull the right steering wheel pad- dle shifter (Ypage 152).
The RACESTARTAvailableDepressgaspedal.message appears in the multifunction
display.
iIf you do not depress the accelerator pedal
fully within two seconds, RACE START is can-
celed. The RACE
STARTNotPossibleSeeOperator'sManualmessage appears in the
multifunction display.
XDepress the accelerator pedal completely,
until the engine speed stops increasing.
The RACE
STARTReleasebraketostartmessage appears in the multifunction display.
iIf you do not release the brake pedal within
five seconds, RACE START is canceled. The
RACE START Canceled
message appears in
the multifunction display.
XTake your foot off the brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum acceler-
ation. The
RACE
STARTActivemessage appears in
the multifunction display.
RACE START is deactivated when the vehicle
reaches a speed of approximately 30 mph (Can-
ada: 50 km/h).
RACE START is deactivated immediately if you
release the accelerator pedal during RACE
START or if any of the activation conditions are
no longer fulfilled. The RACE START Not Pos‐
sible See Operator's ManualorRACESTART Canceledmessage appears in the mul-
tifunction display.
iIf RACE START is used repeatedly within a
short period of time, it is only available again
after the vehicle has been driven a certain
distance.
AIRMATIC
General notes
AIRMATIC is an air suspension with variable
damping for improved driving comfort. All-round
level control ensures the best possible suspen-
sion and constant ground clearance, even with a
laden vehicle. When you drive fast, the vehicle is
lowered automatically to improve driving safety
and to reduce fuel consumption. There is also
the option to manually adjust the vehicle level.
AIRMATIC consists of level setting, level control
and ADS PLUS (Adaptive Damping System with
continuous damping adjustment).
The vehicle level can be set using the DYNAMIC
SELECT switch (
Ypage 144) or the level button
(Ypage 182). The setting always corresponds
to the last selected function.
Important safety notes
GWARNING
When the vehicle is being lowered, people
could become trapped if their limbs are
between the vehicle body and the wheels or
underneath the vehicle. There is a risk of
injury.
Make sure no one is underneath the vehicle or
in the immediate vicinity of the wheel arches
when the vehicle is being lowered.
iIf one of the doors is open, the vehicle is not
lowered.
Driving system s181
Driving an d parking
Z

Displaying therange an dcurrent fuel
consumption
:Range of th efue lsupply
;Curren tfue lconsumption
=Recuperation display
XPress th eò buttonon th esteerin gwhee l
to ope nth emen ulist .
XPress :or9 on thesteerin gwhee lto
selec tth eTri pmenu.
XConfir mby pressing aon thesteerin g
wheel.
XPress 9or: to selec tth edisplay.
Approximat erange :that can be covered is
calculated accordin gto your curren tdrivin g
style and th eamount of fue lin th etank .If
there is only asmall amount of fue llef tin th e
fue ltank , avehicle bein grefuele dC
appears instead of approximat erange :.
Recuperation display =shows you if energ y
has bee nrecuperated from th ekineti cenerg y
in overrun mode and saved in th ebattery.
Recuperation display =depend son th e
engin einstalled and is therefore no tavailable
in all vehicles .
ECO display
XPressòon thesteerin gwhee lto ope nth e
men ulist .
XPress :or9 on thesteerin gwhee lto
selec tth eTri pmenu.
XConfir mby pressing aon thesteerin g
wheel.
XPress th e: or9 buttonto selec tEC O
display.
If th eignition remain sswitched of ffo rlonger
than four hours, th eEC Odisplay will be auto-
matically reset . Fo
rfurther information on th eEC Odisplay, see
(
Ypage 165).
Trip compute r"From Start" or "From
Reset "
:Distanc e
;Driving time
=Average speed
?Average fue lconsumption
XPress th eò buttonon th esteerin gwhee l
to ope nth emen ulist .
XPress :or9 on thesteerin gwhee lto
selec tth eTri pmenu.
XConfir mby pressing aon thesteerin g
wheel.
XPress :or9 to selec tFro mStartor
Fro mReset.
The values in th eFro mStartsubmen uare
calculated from th estart of ajourney, whil e
th evalues in th eFro mReset
submen uare
calculated from th elast time th esubmen u
was reset (
Ypage 216).
The trip compute ris automatically reset in th e
followin gcases FromStart
:
Rtheignition has bee nswitched of ffo rmore
than four hours.
R99 9hour shav ebee nexceeded.
R9,999 miles hav ebee nexceeded.
Whe n9999 hour sor 99,999 milesh ave been
exceeded, the trip computer is automatically
reset From Reset
.
Digital speedometer
XPress òon the steering wheel to open the
menu list.
XPress :or9 on the steering wheel to
select the Tripmenu.
Menus and submenus215
On-board computer and displays
Z

Settings in the bottom bar of the cli-
mate control menu
Switching cooling with air dehumidifica-
tion on/off
XCall up the climate control menu
(Ypage 275).
XSlide6the controller repeatedly until the
bottom bar is activated.
XTo select OA/C: turn and press the control-
ler.
XSwitch cooling with air dehumidification on
O or off ª.
iThe current status of the cooling function is
displayed in the climate control bar: A/C ON
– activated, A/C OFF – deactivated.
iDeactivating the cooling with air dehumidi-
fication function reduces fuel consumption.
Synchronizing the climate control set-
tings
Use OSync(synchronization) to select the cli-
mate control setting for all zones together Oor
separately ª.
XCall up the climate control menu
(Ypage 275).
XSlide6the controller repeatedly until the
bottom bar is activated.
XTo select OSync: turn and press the con-
troller.
XSwitch the synchronization function on Oor
off ª.
For further information on synchronizing climate
control settings, see (
Ypage 129).
Navigation mode
Important safety notes
GWARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle when driving, you may be distracted from
the traffic situation. You could also lose con-
trol of the vehicle. There is a risk of an acci-
dent.
Only operate this equipment when the traffic
situation permits. If you are not sure that this is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for the
country in which you are currently driving when
operating the navigation system.
General notes
Among other things, correct functioning of the
navigation system depends on GPS reception. In
certain situations, GPS reception may be
impaired, there may be interference or there
may be no reception at all, e.g. in tunnels or
parking garages.
Audio 20 is equipped with Garmin
®MAP PILOT
(see the manufacturer's operating instructions).
The Garmin
®MAP PILOT operating instructions
are stored on the SD card as a PDF file. The SD
card box contains a quick guide.
The following descriptions apply to navigation
with COMAND. Further information can be
found in the Digital Operator's Manual.
Selecting a route type and route options
Multimedia system:
XSelect NaviQNavigation.
XSelectOptionsQRoute Settings.
iIf route guidance is active, first slide 6the
controller and show the menu.
XSelect a route type.
Notes for route types:
REco Route
Calculates an economic route.
RDynamic Traffic Route(only available in
the USA)
Traffic reports on the route for the route guid-
ance are taken into account.
RCalculate Alternative Routes
Different routes are being calculated. Instead
of Start, select the Continuemenu item.
XTo avoid/use route options: selectAvoid
Options.
XSelect a route option.
276Operating system
Multimedia system

RCheck the tire for foreign objects.
RCheck whether the wheelislosing air or the
valve isleaking.
If you are unab leto rectify the damage, con-
tact a qualified specialist workshop.
GWARNING
If you fit unsuitab leaccessories onto tire
valves, the tire valves may beoverloaded and
malfunction, which can cause tire pressure
loss. Due to their design, retrofitted tire pres- sure monitors keep the tire valve open. This
can also result intire pressure loss. There isa
risk of an acc ident.
Only screw the standard valve cap or other
valve caps approved byMercedes-Benz for
your veh icleonto the tire valve.
Use a suitable pressure gauge to check the tire
pressure. The outer appearance of a tire does
not permit any reli ableconclusion about the tire
pressure. On veh iclesequipp edwith the elec-
tronic tire pressure monitor, the tire pressure
can bechecked inthe on-board computer.
The tire temperature and pressure increase
when the veh icle is inmotion. This isdependent
on the driving speed and the load.
Therefore, you should only correct tire pres-
sures when the tires are co ld.
The tires are co ld:
Rifthe veh iclehas been parked with the tires
out of direct sunlight for at least three hours
and
Rif the veh iclehas not been driven further than
1 mile (1.6 km)
The tire temperature changes dependin g on the
outside temperature, the veh iclespeed and the
tire load. Ifthe tire temperature changes by
18 ‡ (1
0 †), the tire pressure changes
by
approximate ly10 kPa (0.1 bar/1.5 psi). Take
th is into account when checking the pressure of
warm tires. Only correct the tire pressure if it is
too low for the current operating conditions. If
you check the tire pressure when the tires are
warm, the resulting value will behigher than if
the tires were co ld.This isnormal. Do not
reduce the tire pressure to the value specifie d
for co ldtires. The tire pressure would otherwise
be too low. Observe the recommended tire pressures for
cold tires:
Ron the Tire and Loading Information placard
on the B-pillar on the driver's
side
Rinthe tire pressure tab leon the fuel filler flap
(Ypage 156)
Underinflated or overinflated tires
Underinflated tires
GWARNING
Tires with pressure that is too low can over-
heat and burst as a consequence. In addition, they also suffer from excessive and/or irreg-
ular wear, which can severely impair the brak-
ing properties and the driving characteristics.
There is a risk of an accident.
Avoid tire pressures that are too low in all the
tires, including the spare wheel.
Underinflated tires may:
Roverheat, leading to tire defects
Radversely affect handling
Rwear excessively and/or uneven ly
Rhave anadverse effect on fuel consumption
Overinflated tires
GWARNING
Tires with excessively high pressure can burst
because they are damaged more easily by
road debris, potholes etc. In addition, they
also suffer from irregular wear, which can
severe lyimpair the braking properties and the
driv ing characteristics. There is a risk of an
accident.
Avoid tire pressures that are too high in all the
tires, including the spare wheel.
Overinflated tires may:
Rincrease the braking distance
Radversely affect handling
Rwear excessively and/or uneven ly
Rhave anadverse effect on ride comfort
Rbe more susceptible to damage
338Tire pressure
Wheels and tires

XClean the wheel and wheel hub contact sur-
faces.
XSlide the wheel to bemounted onto the align-
ment boltand push iton.
XTighten the wheel bolts unt ilthey are finger-
tight.
XUnscrew the alignment bolt.
XTighten the last wheel boltuntil it is finger-
tight.
Lowering the vehicle
GWAR NING
The wheels could work loose ifthe wheel nuts
and bolts are not tightened to the specifie d
tightening torque. There isa risk of acc ident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel ischanged.
XTurn the crank of the jack counter-clock wise
unt ilthe veh icle isonce again standing firmly
on the ground.
XPlace the jack to one side.
XTighten the wheel bolts evenly ina crosswise
pattern inthe sequence indicated (: toA). The tightening torque must be
111lb-ft
(1 50 Nm) .
XTurn the jack back to its initial position.
XStow the jack and the rest of the vehicle tools
in the trunk again.
XMercedes-AMG vehicles and vehicles
with AMG equipment: insert the cover into
the outer sill.
XCheck the tire pressure of the ne wlymounted
wheel and adjust it if necessary.
Observe the recommended tire pressure
(
Ypage 336).
When you are driving with the collapsible spare
wheel mounte d,the tire pressure loss warning
system or the tire pressure monitor cannot func-
tion reliably. Only restart the tire pressure loss
warning system or tire pressure monitor when
the defective wheel has been replaced with a
new wheel.
Vehicles with a tire pressure controlsys-
tem: all installed wheels must be equipped with
functioning sensors.
Wheel/tire combination
You can ask for information regarding permitted wheel/t ire combinations at an authorized
Mercedes-Benz Center.
!For safety reasons, Mercedes-Benz recom-
men dsthat you only use tires and wheels
whic h have been approved byMercedes-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:
RMO = Mercedes-Benz Original
RMOE = Mercedes-Benz Original Extended
(tires featuring run-flat characteristics)
RMO1 = Mercedes-Benz Original (only cer-
tain AMG tires)
Mercedes-Benz Original Extended tires may
only beused on wheels that have been spe-
cifically 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 other-
wise be adverselyaffected. In addition, when
driving with a load, tire dimension variations
could cause the tires to come into contact
Wheel/tire combination357
Wheels and tires
Z

!To ensure the longevity and full perform-
ance of the engine, only premium-grade
unleaded gasoline must be used.
If standard unleaded gasoline is unavailable
and you have to refuel with unleaded gasoline
of a lower grade, observe the following pre-
cautions:
ROnly fill the fuel tank to half full with regular unleaded gasoline and fill the rest with pre-
mium-grade unleaded gasoline as soon as
possible.
RDo not drive at the maximum speed.
RAvoid sudden acceleration and engine
speeds over 3,000 rpm.
You will usually find information about the fuel
grade on the fuel pump. If you cannot find the
label on the fuel pump, ask the gas station staff.
iFor further information, consult a qualified
specialist workshop or visit
http://www.mbusa.com (USA only).
As a temporary measure, if the recommended
fuel is not available, you may also use regular
unleaded gasoline with an octane rating of
87 AKI/91 RON. This may reduce engine per-
formance and increase fuel consumption. Avoid
driving at full throttle and sudden acceleration.
Never refuel using gasoline with a lower AKI.
Information on refueling (
Ypage 156).
Additives
!Operating the engine with fuel additives
added later can lead to engine failure. Do not
mix fuel additives with fuel. This does not
include additives for the removal and preven-
tion of residue buildup. gasoline must only be mixed with additives recommended by
Mercedes-Benz. Comply with the instructions
for use on the product label. More information
about recommended additives can be
obtained from any authorized Mercedes-Benz
Center.
Mercedes-Benz recommends that you use bran- ded fuels that have additives.
The fuel quality available in some countries may
not be sufficient. Residue could build up in the
fuel injection system as a result. In such cases,
and in consultation with an authorized
Mercedes-Benz Center, the fuel may be mixed
with the cleaning additive recommended by
Mercedes-Benz. You must observe the notes
and mixing ratios specified on the container.
Diesel
Fuel grade
GWARNING
If you mix diesel fuel with gasoline, the flash
point is lower than that of pure diesel fuel.
When the engine is running, exhaust system
components could overheat without being
noticed. There is a risk of fire.
Never refuel with gasoline. Never mix gasoline with diesel fuel.
!Refuel only using diesel fuel that conforms
to European standard EN 590 or an equivalent
specification. Fuel that does not conform to
EN 590 can lead to increased wear and dam-
age the engine and exhaust system.
!Do not use the following:
Rmarine diesel
Rheating oil
Rbio-diesel
Rvegetable oil
Rgasoline
Rparaffin
Rkerosene
Do not mix such fuels with diesel fuel and do
not use any special additives. Otherwise,
engine damage may occur.
!Vehicles with diesel particle filters: in
countries outside the EU, only use low sulfur
Euro diesel with a sulfur content of under
50 ppm. Otherwise, the emission control sys-
tem could be damaged.
!Vehicles without a diesel particle filter:
in countries where only diesel fuel with a high
sulfur content is available, you will need to
carry out your vehicle's oil change at shorter
intervals. Further information on oil change
intervals can be obtained at a qualified spe-
cialist workshop.
You will usually find information about the fuel
quality on the pump. If you cannot find the label
on the fuel pump, ask the gas station staff.
Information on refueling (
Ypage 156).
Service products and filling capacities363
Technical data
Z