MERCEDES-BENZ C-CLASS ESTATE 2021 Owners Manual

ECO Assist function (vehicles with 48 V on-board
electrical system)%ECO Assist is active only in drive pro-
grams  and A .
ECO Assist analyses data for the vehicle's expec-
ted route. This allows the system to optimally
adjust the driving style for the route ahead, save
fuel and recuperate. If the system detects an
event ahead and the vehicle nears the event, ECO
Assist will calculate the optimum speed for maxi- mum fuel economy and recuperative energy
based on the distance, speed and downhill gradi-
ent.
ECO Assist display on the driver's display on the
Assistance menu
1"Foot oM the accelerator" recommendation2Route event ahead
If a route event that can be dealt with more eP-
ciently by adjusting your driving style is detected
ahead, corresponding symbol 2 will be dis-
played.
In addition, the

System limits
If the calculated route is adhered to when route guidance is active, ECO Assist will operate with greater accuracy. The basic function is also availa-ble without active route guidance. Not all informa-
tion and traPc situations can be foreseen. The
quality depends on the map data.
ECO Assist is only an aid. The driver is responsible
for keeping a safe distance from the vehicle in
front, for vehicle speed and for braking in good
time.
The system may be impaired or may not function in the following situations:
= If there is poor visibility, e.g. due to insuPcient
illumination of the road, if there are highly vari-
able shade conditions or in rain, snow, fog or
heavy spray.
= If there is glare, e.g. from oncoming traPc,
direct sunlight or reOections.
= If the windscreen in the area of the multifunc-
tion camera is dirty, or if the camera is misted
up, damaged or covered.= If the traPc signs are hard to detect, e.g. due
to dirt, snow or insuPcient lighting, or
because they are covered.
= If the information in the navigation system's
digital map is incorrect or out-of-date.
= If the signs are ambiguous, e.g. road signs in
roadworks or in adjacent lanes.
DYNAMIC SELECT button
Function of the DYNAMIC SELECT button
%Depending on the engine and equipment, the vehicle has diMerent drive programs.
Use the DYNAMIC SELECT button to change
between the following drive programs:
The chosen drive program appears in the driver display.
Individual
= Individual settings
B Sport+
= Sporty driving
=Emphasises the vehicle's own oversteering
and understeering characteristics for a more
active driving style
= Only suitable for good road conditions, a dry
road surface and a clear stretch of road
C Sport
= Still sporty, but with an emphasis on stability
= Allows the sporty driver a more active driving
style
= Only suitable for good road conditions, a dry
road surface and a clear stretch of road
A Comfort
= Comfortable and economical driving
= Balance between traction and stability
= Recommended for all road conditions
 Eco
= Particularly economical driving
= Balance between traction and stability
= Recommended for all road conditions170Driving and parking

Depending on the drive program, the following
systems change their characteristics:
= Drive
- Engine and transmission management
- Active Distance Assist DISTRONIC
- Availability of Glide mode
= ESP n
= SteeringSelecting the drive programPress the DYNAMIC SELECT button 1 on the
les or right.
The chosen drive program appears in the dis- play of the button.ConNguring DYNAMIC SELECT (multimedia sys-
tem)
Multimedia system:
4 © 5
Settings 5
Vehicle
5 DYNAMIC SELECT
Setting drive program I
Select Individual .Select and set a category.
Switching the reset display on/oM
Activate or deactivate Ask when starting.%This function must be activated for each user
proNle separately. Only when this function is
activated will the drive program and ECO
start/stop setting for the previous journey be
saved for the respective user proNle.
Function on: the next time the vehicle is started a
prompt appears asking whether the last active
drive program should be restored. If the ECO start/stop function was deactivated, an additionalprompt appears asking if the function should
remain deactivated.
Driving and parking171

%The prompt appears only if the previously
active settings deviate from the standard set-
tings.
Function oM the next time the vehicle is started
the A drive program is set automatically. The
ECO start/stop function is activated automati-
cally.
Displaying vehicle data
Multimedia system:
4 © 5
Info
Select Vehicle .
The vehicle data is displayed.
Displaying engine data
Multimedia system:
4 © 5
Info
Select Engine.
The engine data is displayed.%The actual (maximum) values that can be ach-
ieved for engine output and engine torque
may deviate from the certiNed values withinthe country-speciNc guidelines for permissible
tolerances (basis: UN-ECE No. 85 or country-
speciNc guidelines).
*nOuencing variables that can inOuence this
are, for example:
= Sea level
= Fuel quality
= Outside temperature
= Operating temperature of the engine
Please adjust your driving style accordingly.
The U warning lamp in the instrument
cluster is on until the engine has reached
operating temperature.%The values displayed serve only as orienta-
tion. The values for engine output and engine
torque shown in the central display may devi- ate from the actual values.%U to display the power reduction aser
engine start is not available in all vehicle mod- els.Calling up the fuel consumption indicator
Multimedia system:
4 © 5
Info
Select Consumption .
The current and average fuel consumption is
displayed.
Automatic transmission
DIRECT SELECT lever

q Function of the DIRECT SELECT lever
&WARNING Risk of accident due to incor-
rect gearshising
If the engine speed is higher than the idle
speed and you engage the transmission posi-
tion 005B or 005E, the vehicle may accelerate
sharply.
If you engage the transmission position
005B or 005E when the vehicle is at a stand-
still, always depress the brake pedal
Nrmly and do not accelerate at the same
time.172Driving and parking

&WARNING Risk of accident and injury due
to leaving children unattended in the vehi-
cle
If children are les unattended in the vehicle,
they could, in particular:
= open doors, thereby endangering other
persons or road users.
= get out and be struck by oncoming traPc.
= operate vehicle equipment and become
trapped, for example.
In addition, the children could also set the
vehicle in motion by, for example:
= releasing the parking brake.
= changing the transmission position.
= starting the vehicle.
Never leave children unattended in the
vehicle.When leaving the vehicle, always take the key with you and lock the vehicle.Keep the vehicle key out of the reach of
children.Use the DIRECT SELECT lever to switch the trans-
mission position. The current transmission posi-
tion is shown in the driver display.005DPark position005EReverse gear005CNeutral005BDrive position
q Engaging reverse gear RDepress the brake pedal and push the DIRECT
SELECT lever upwards past the Nrst point of
resistance.

q Engaging neutral N
Depress the brake pedal and push the DIRECT
SELECT lever up or down to the Nrst point of
resistance.%To shis into neutral 005C with the ignition on,
push the selector lever up or down for several
seconds to the Nrst point of resistance.
Subsequently releasing the brake pedal will allow
you to move the vehicle freely, e.g. to push it or
tow it away.
Proceed as follows if you want the automatic transmission to remain in neutral 005C, even if the
ignition is switched oM or the driver's door is
opened:
Depress the brake pedal and engage neutral
005C when the vehicle is at a standstill.Release the brake pedal.Switch the ignition oM.Driving and parking173

The Risk of vehicle rolling away N activated man-
ually No automatic switch to P message appears
on the driver's display.%If you then exit the vehicle leaving the key in the vehicle, the automatic transmission
remains in neutral 005C.
The park position 005D is automatically re-engaged
as soon as one of the following conditions is met:
= You switch to transmission position 005B or 005E.
= You press the button 005D.

q Engaging park position P
Observe the notes on parking the vehicle
(  page 182).Depress the brake pedal until the vehicle
comes to a standstill.When the vehicle is at a standstill, press but-
ton 005D.
When the transmission position display shows
005D , the park position is engaged. If no trans-
mission position display 005D appears, secure
the vehicle to prevent it from rolling away.%Depending on the situation, it may take a short time until 005D is engaged. Therefore,always pay attention to the transmission posi-
tion display.
Park position 005D is engaged automatically if one
of the following conditions is met:
= You switch oM the ignition when the vehicle is
stationary and the transmission position is 005B
or 005E .
= You open the driver's door when the vehicle is
at a standstill or when driving at a very low
speed and the transmission position is 005B or
005E .
=
You switch oM the engine and bring the vehicle
to a standstill when the vehicle is rolling and the transmission position is 005B or 005E.
=
You switch oM the engine, bring the vehicle to
a standstill and open the driver's door when
the vehicle is stationary or when the vehicle is
rolling and the transmission position is 005C.
=
Engaging park position 005D automatically is
required by the vehicle.
%To manoeuvre with an open driver's door,
open the driver's door while at a standstill and
engage transmission position 005B or 005E again.
qEngaging drive position DDepress the brake pedal and push the DIRECT
SELECT lever down past the Nrst point of
resistance.
When the automatic transmission is in transmis-
sion position 005B, it shiss the gears automatically.
This depends, among other things, on the follow- ing factors:
= The selected drive program
= The position of the accelerator pedal
= The driving speed
Manual gearshising
174Driving and parking

When the automatic transmission is shised to
position 005B, you can manually shis it with the
steering wheel gearshis paddle. If permitted, the
automatic transmission shiss to a higher or lower
gear depending on the steering wheel gearshis
paddle being pulled.
You have two options to manually shis the auto-
matic transmission:
= Temporary setting
= Permanent setting
The gears shis automatically when manual shising
is deactivated.
Temporary setting: Activating: Pull steering wheel gearshis paddle
1 or 2.
Manual shising is activated for a short time.
The transmission position display shows 0063
and the current gear.%How long the manual shising stays activated
is dependant on various factors.Manual shising can be automatically deactiva-
ted in the following cases:
= Changing the drive program
= Restarting the vehicle
= When the transmission position 005B is
engaged again
= Driving styleShising up: Pull steering wheel gearshis pad-
dle 2.Shising down: Pull steering wheel gearshis
paddle 1.Deactivating: Pull steering wheel gearshis
paddle 2 and hold it in place.
The transmission position display shows 005B.
Permanent setting:
Change to drive program ( page 171).Select drive setting 0063 ( page 171).
Using kickdown
Maximum acceleration: depress the accelera-
tor pedal beyond the pressure point.To protect against engine overrev, the automatic
transmission shiss up to the next gear when maxi-
mum engine speed has been reached.
Glide mode function
With an anticipatory driving style, Glide mode
helps you to reduce fuel consumption.
Glide mode is characterised by the following: = The combustion engine is disconnected from
the drivetrain and continues to run in neutral.
= The transmission position display 005B is shown
in green.
= The combustion engine can be switched oM.
All of the vehicle functions remain active.
Glide mode is activated if the following conditions are met:
= Drive program  is selected.
= The speed is within a suitable range.
= The road's course is suitable, e.g. no steep
uphill or downhill inclines or tight bends.
= There is no trailer hitched up to the trailer
hitch, and no bicycle rack Fitted.
Driving and parking175

=You do not depress the accelerator or brake
pedal (except for light brake applications).%Glide mode can also be activated if you have
selected the "Eco" setting for the drive in the drive program .
Glide mode is deactivated again if one of the con-
ditions is no longer met.
Glide mode can also be prevented by the following
parameters:
= Incline
= Downhill gradient
= Temperature
= Height
= Speed
= Operating status of the engine
= TraPc situation
Refuelling
Refuelling the vehicle
&WARNING Risk of Nre or explosion from
fuel
Fuels are highly Oammable.
Fire, naked Oames, smoking and creation
of sparks must be avoided.Switch oM the ignition and, if available,
the stationary heater, before and while
refuelling the vehicle.&WARNING Risk of injury from fuels
Fuels are poisonous and hazardous to your
health.
Do not swallow fuel or let it come into
contact with skin, eyes or clothing.Do not inhale fuel vapour.Keep children away from fuel.Keep doors and windows closed during
the refuelling process.If you or other people come into contact with
fuel, observe the following:Immediately rinse fuel oM your skin with
soap and water.If fuel comes into contact with your eyes, immediately rinse them thoroughly with
clean water. Seek medical attention
immediately.If you swallow fuel, seek medical atten-
tion immediately. Do not induce vomit-
ing.Change immediately out of clothing that has come into contact with fuel.&WARNING Risk of Nre and explosion due
to electrostatic charge
Electrostatic charge can ignite fuel vapour.
Before you open the fuel Nller cap or
take hold of the pump nozzle, touch the metallic vehicle body.176Driving and parking

To avoid creating another electrostatic
charge, do not get into the vehicle again
during the refuelling process.&WARNING Risk of Nre from fuel mixture
Vehicles with a diesel engine:
If you mix diesel fuel with petrol, the Oash
point of the fuel mixture is lower than that of
pure diesel fuel.
While the engine is running, component parts
in the exhaust system may overheat without
warning.
Never refuel using petrol.Never mix petrol with diesel fuel.*NOTE Damage caused by the wrong fuel
Vehicles with a petrol engine:
Even small amounts of the wrong fuel could
result in damage to the fuel system, the
engine and the emission control system.
Only refuel using unleaded, sulphur-free
petrol that conforms to European
EN 228, or an equivalent speciNcation.
Fuel of this speciNcation may contain up to
10% ethanol. Your vehicle is suitable for use
with E10 fuel.
Never refuel with one of the following fuels: = diesel
= regular petrol with an octane number
lower than 91 RON
= petrol with more than 10% ethanol by vol-
ume, e.g. E15, E20, E85, E100
= petrol with more than 3% methanol by vol-
ume, e.g. M15, M30
= petrol with additives containing metal
If you have accidentally refuelled with the
wrong fuel:
do not switch the ignition on.Consult a qualiNed specialist workshop.*NOTE Damage caused by the wrong fuel
Vehicles with a diesel engine:
Even small amounts of the wrong fuel could
result in damage to the fuel system, the
engine and the emission control system.
Only refuel using sulphur-free diesel fuel
that conforms to European standard
EN 590, or an equivalent speciNcation.
In countries without sulphur-free diesel
fuel, refuel using only low-sulphur diesel
fuel with a sulphur content less than
50 ppm.
Never refuel using any of the following fuels:
= petrol
= marine diesel
= heating oil
= pure bio-diesel fuel or vegetable oil
= paraPn or kerosene
If you accidentally refuel with the wrong fuel:
Do not switch the ignition on.Driving and parking177

Consult a qualiNed specialist workshop.*NOTE Do not use diesel to refuel vehicles
with a petrol engine
If you have accidentally refuelled with the
wrong fuel:
= do not switch the ignition on. Otherwise
fuel can enter the engine.
Even small amounts of the wrong fuel
could result in damage to the fuel system and the engine. The repair costs are high.
Consult a qualiNed specialist workshop.Have the fuel tank and fuel lines drained
completely.*NOTE Do not use petrol to refuel vehicles
with a diesel engine
If you have accidentally refuelled with the
wrong fuel:
= do not switch the ignition on. Otherwise,
fuel can enter the fuel system.
Even small amounts of the wrong fuel
could result in damage to the fuel system and the engine. The repair costs are high.
Consult a qualiNed specialist workshop.Have the fuel tank and fuel lines drained
completely.*NOTE Damage to the fuel system caused
by overNlled fuel tanksOnly Nll the fuel tank until the pump noz-
zle switches oM.
If you have added too much fuel because of a
defective Nlling pump, for instance:
Do not switch the ignition on.Consult a qualiNed specialist workshop.*NOTE Fuel may spray out when you
remove the fuel pump nozzleOnly Nll the fuel tank until the pump noz-
zle switches oM.
Requirements:
= The vehicle is unlocked.
%Do not get into the vehicle again during the
refuelling process. Otherwise, electrostatic
charge could build up again.
Observe the notes on operating Ouids and fuel.
The recommended octane number for your vehi-
cle can be found on the information label in the fuel Nller Oap.
178Driving and parking