MERCEDES-BENZ C CLASS 2023 Owners Manual

Fire, open Oames, smoking and creating
sparks must be avoided.Before refueling, switch oM the vehicle
and, if installed, the stationary heater,
and leave them switched oM during refu-
eling.&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 vapor.Keep children away from fuel.Keep doors and windows closed during
the refueling 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 withclean 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 vapor.
Before you open the fuel Nller cap or
take hold of the pump nozzle, touch the metallic vehicle body.To avoid creating another electrostatic
charge, do not get into the vehicle again
during the refueling process.*NOTE Damage caused by the wrong fuel
Vehicles with a gasoline 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 with low-sulfur spark-ignition
engine fuel.
This fuel may contain up to 10% ethanol. Your vehicle is suitable for use with E10 fuel.
Never refuel with one of the following fuels: = Diesel
= Gasoline with more than 10% ethanol by
volume, e.g. E15, E85, E100
= Gasoline with more than 3% methanol by
volume, e.g. M15, M30, M85, M100
= Gasoline with additives containing metal
If you have accidentally refueled with the
wrong fuel:
Do not switch on the vehicle.Consult a qualiNed specialist workshop.Driving and parking169

*NOTE Do not use diesel to refuel vehicles
with a gasoline engine
If you have accidentally refueled with the
wrong fuel:
= Do not switch on the vehicle. 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 Damage to the fuel system due to
overNlling the fuel tankOnly Nll the fuel tank until the pump noz-
zle switches oM.
If too much fuel has been added due, for
example, to a faulty Nlling pump:
Do not switch on the vehicle.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.
Observe the notes on service Ouids and fuel.
Refuel only with fuel that has at least the octane rating speciNed in the information label in the fuel
Nller Oap. Otherwise, engine output may be
reduced and fuel consumption increased.
1Fuel Nller Oap2Bracket for fuel Nller cap3Tire pressure table4QR code for rescue card5Fuel typePress on the rear part of fuel Nller Oap 1 .Turn the fuel Nller cap counter-clockwise and
remove it.170Driving and parking

Insert fuel Nller cap from above into bracket
2 .Completely insert the pump nozzle into the
tank Nller neck, hook in place and refuel.Fill the fuel tank only until the pump nozzle
switches oM.Replace the cap on the Nller neck and turn
clockwise until it engages audibly.Close fuel Nller Oap 1 .
Parking
Parking the vehicle
&WARNING Risk of accident and injury
caused by an insuPciently secured vehi-
cle rolling away
If the vehicle is not securely parked suP-
ciently, it can roll away in an uncontrolled way
even at a slight downhill gradient.
On uphill or downhill gradients, turn the
front wheels so that the vehicle rolls
towards the curb if it starts moving.Apply the parking brake.Switch the transmission to position ].&WARNING Risk of Nre caused by hot
exhaust system parts
Flammable materials such as leaves, grass or
twigs may ignite.
Park the vehicle so that no Oammable
material can come into contact with hot
vehicle components.In particular, do not park on dry grass- land or harvested grain Nelds.&WARNING Risk of accident and injury due
to children les unattended in the vehicle
If you leave children 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 gearbox 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 key out of reach of children.*NOTE Damage to the vehicle due to it roll-
ing awayAlways secure the vehicle against rolling away.Driving and parking171

Bring the vehicle to a standstill by depressing
the brake pedal.On gradients, turn the front wheels so that the vehicle will roll towards the curb if it starts
moving.Apply the electric parking brake.Engage transmission position ] in a station-
ary vehicle with the brake pedal depressed
(  page 165).Switch oM the vehicle by pressing button 1.Release the service brake slowly.Get out of the vehicle and lock it.\bWhen you park the vehicle, you can still oper-
ate the side windows and the sliding sunroof for approximately four minutes if the driver\bsdoor is closed.\bWhen you park the vehicle, you can still oper-
ate the side windows and the panoramic slid- ing sunroof for approximately four minutes if
the driver\bs door is closed.Garage door opener

q Programming buttons for the garage door
opener
&DANGER Risk of death caused by exhaust
gases
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases is hazardous to health
and leads to poisoning.
Never leave the engine or, if present, the
auxiliary heating running in an enclosed
space without suPcient ventilation.&WARNING Risk of injury by becoming
trapped when opening and closing a garage door
When you operate or program a garage door
with an integrated garage door opener, per- sons can become trapped or struck by the
garage door if they stand within its range of movement.
172Driving and parking

Always make sure that nobody is withinthe range of the garage door\bs move-
ment.Only operate the following doors using the garage
door opener:
= Doors with a safety stop and reversing func-
tion
= Doors that conform to the current U.S. safety
standards
Before programming the garage door opener, park
the vehicle outside the garage. Make sure that the
vehicle is switched on but not started.
Requirements
= The vehicle has been parked outside the
garage or outside the range of movement of
the door.
= The vehicle is switched on.
= The vehicle has not been started.
\bThe garage door opener function is always
available when the vehicle is switched on.Check that the transmitter frequency of the
remote control has a frequency range of 280
to 868 MHz.
Radio equipment approval number: = NZLMUAHL5 (USA)
= 4112A-MUAHL5 (Canada)Press and hold button 1, 2 or 3 that you
wish to program.
Indicator lamp 4 will Oash yellow.\bIt can take up to 20 seconds before the indi-
cator lamp Oashes yellow.Release the button previously pressed.
Indicator lamp 4 will continue to Oash yellow.Point remote control 5 from a distance of
0.4 in (1 cm) to 3 in (8 cm) towards button
1 , 2 or 3.Press and hold button 6 of remote control
5 until one of the following signals appears:
= Indicator lamp 4 lights up green continu-
ously. Programming is complete.
= Indicator lamp 4 Oashes green. Program-
ming was successful. Additionally, the roll-
ing code must be synchronized with the door system.If indicator lamp 4 does not light up or Oash
green: repeat the procedure.Release all of the buttons.Driving and parking173

\bThe remote control for the door drive is not
included in the scope of delivery of the garage
door opener.

q Synchronizing the rolling code
Requirements
= The door system uses a rolling code.
= The vehicle must be within range of the garage
door or door drive.
= The vehicle as well as persons and objects are
located outside the range of movement of the door.
Press the programming button on the door
drive unit.
Initiate the next step within approximately
30 seconds.Press previously programmed button 1, 2
or 3 repeatedly until the door closes.
When the door closes, programming is com-
pleted.\bPlease also read the operating instructions for
the door drive.
q Troubleshooting when programming the remote
controlCheck if the transmitter frequency of remote
control 5 is supported.Replace the batteries in remote control 5.Hold remote control 5 at various angles from
a distance of 0.4 in (1 cm) to 3 in (8 cm) front
of the inside rearview mirror. You should test
every position for at least 25 seconds before
trying another position.Hold remote control 5 at the same angles at
various distances in front of the inside rear-
view mirror. You should test every position for
at least 25 seconds before trying another
position.On remote controls that transmit only for a
limited period, press button 6 on remote
control 5 again before transmission ends.Angle the antenna line of the garage door
opener unit towards the remote control.\bIt is possible that older garage doors cannot
be operated using the remote control in the inside rearview mirror even aser you havesuccessfully performed the measures descri-
bed above. If this is the case, contact the
HomeLink n
Hotline.\bSupport and additional information on pro-
gram:
= on the toll free HomeLink n
Hotline on
1-800-355-3515
= on the Internet at https://
www.homelink.com/mercedes

q Opening or closing a garage door
Requirements
= The corresponding button is programmed to
operate the door.
Press and hold button 1, 2 or 3 until the
door opens or closes.If indicator lamp 4 Oashes yellow aser
approximately 20 seconds: press and hold the
button previously pressed again until the door opens or closes.174Driving and parking

qClearing the garage door opener memoryPress and hold buttons 1 and 3.
Indicator lamp 4 will light up yellow.If indicator lamp 4 Oashes green: release
buttons 1 and 3.
The entire memory has been deleted.
Electric parking brake

q Function of the electric parking brake (applying
automatically)
&WARNING Risk of accident and injury due
to children les unattended in the vehicle
If you leave children 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 gearbox 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 key out of reach of children.
The electric parking brake is applied if the trans-mission is in position ] and one of the following
conditions is fulNlled:
= The vehicle is switched oM.
= The seat belt tongue is not inserted in the seat
belt buckle of the driver\bs seat and the driver\bs
door is opened.
\bTo prevent application: pull the handle of the
electric parking brake (  page 176).In the following situations, the electric parking
brake is also applied: = The HOLD function is keeping the vehicle sta-
tionary.
= Active Parking Assist is keeping the vehicle
stationary.
= Active Distance Assist DISTRONIC is bringing
the vehicle to a standstill.
= In addition, one of the following conditions
must be fulNlled:
- The vehicle is switched oM.
- The seat belt tongue is not inserted in the
seat belt buckle of the driver\bs seat and
the driver\bs door is opened.
- There is a system malfunction.
- The power supply is insuPcient.
- The vehicle is stationary for a lengthy
period.
When the electric parking brake is applied, the red M (USA) or

\bThe electric parking brake is not automatically
applied if the vehicle is switched oM by the
ECO start/stop function.

q Function of the electric parking brake (releas-
ing automatically)
The electric parking brake is released when the
following conditions are fulNlled:
= The driver\bs door is closed.
= The vehicle has been started.
= The transmission is in position [ or ^ and
you depress the accelerator pedal or you shis
from transmission position ] to [ or ^
when on level ground.
= If the transmission is in position ^, the trunk
lid must be closed.
= The seat belt tongue is inserted into the seat
belt buckle of the driver\bs seat.
If the seat belt tongue is not inserted into the seat belt buckle of the driver\bs seat, one of thefollowing conditions must be fulNlled:
- You shis from transmission position ].
or
- You have previously driven at speeds
greater than 2 mph (3 km/h).
When the electric parking brake is released, the
red M (USA) or

Information on collision detection when a vehicle
is parked
If a collision is detected when the tow-away alarm
is armed on a locked vehicle, you will receive a
notiNcation in the multimedia system when you
switch the vehicle on.
You will receive information about the following points:
= The area of the vehicle that may have been
damaged.
= The force of the impact.
The following situation can lead to inadvertent
activation:
= The parked vehicle is moved, for example, in a
two-story garage.
\bDeactivate the tow-away alarm in order to
prevent inadvertent activation. If you deacti-
vate the tow-away alarm, collision detection
will also be deactivated.
You can permanently deactivate collision
detection via the multimedia system
(  page 177).\bIf the battery is severely discharged, the func-
tion for detecting a collision with a parked vehicle will automatically be deactivated tofacilitate the next engine start.
System limits
Detection may be restricted in the following situa- tions:
= The vehicle is damaged without an impact, for
example, if an outside mirror is torn oM or the
paint is damaged by a key
= An impact occurs at low speed
= The electric parking brake is not applied
\bYou are responsible for your vehicle. There-
fore, always make sure that your vehicle is free of damage and is roadworthy.Setting collision detection on a parked vehicle
Multimedia system:
4 © 5
Settings 5
Vehicle
5 Open/Close 5
Vehicle Protection
Activate or deactivate the function via Colli-
sion Notification .\bA maximum of three incidents can be regis-
tered. Up to 15 photos will be taken for every incident. In the event of another incident, the
photos of the Nrst incident will be overwritten
if they have not been deleted already.
Activating or deactivating the collision photos
function
Note possible legal restrictions in some countries
regarding automatic recording of the vehicle sur- roundings.
Activate or deactivate Take photos.
Transferring the collision photos with the
Mercedes me App
Select Upload to Mercedes me .Select Upload Automatically .Driving and parking177

Scan the generated QR code on the central
display with the Mercedes me app.
The encrypted collision photos will then be
uploaded to Mercedes me.\bAny device that can scan QR codes can be
used to view the collision photos in the
Mercedes me app.
Copying the collision photos to a USB Oash drive
Connect a USB Oash drive .Select Manage Collision Photos .Select Copy (USByf .
All collision photos will be copied to the USB
Oash drive.\bTo ensure secure operation, use only with
FAT32- or exFAT-formatted USB storage devi-
ces.
Deleting collision photos
Select Manage Collision Photos .Select Delete.
All collision photos will be deleted.Notes on parking the vehicle for an extended
period
If you leave the vehicle parked for longer than six
weeks, it may suMer damage through disuse.
The 12 V battery may also be impaired or dam-
aged by heavy discharging.
\bFurther information can be obtained at a
qualiNed specialist workshop.
Standby mode (extension of the starter battery\bs
period out of use)

q Standby mode function
\bThis function is not available for all models.
If standby mode is activated, energy loss will be
minimized during extended periods of non-opera-
tion.
Standby mode is characterized by the following:
= The starter battery is preserved.
= The maximum non-operational time appears in
the driver\bs display.
= The connection to online services is interrup-
ted.
If the following conditions are fulNlled, standby
mode can be activated or deactivated using the
multimedia system:
= The vehicle is switched on.
= The vehicle has not been started.
Exceeding the vehicle\bs displayed non-operational
time may cause inconvenience; i.e. it cannot be guaranteed that the starter battery will reliablystart the vehicle.
Charge the starter battery in the following situa- tions:
= The vehicle\bs non-operational time must be
extended.
= The starter battery charge level is insuPcient
for standby mode.\bStandby mode is automatically deactivated when the vehicle is switched on.

q Activating/deactivating standby mode (parking
up the vehicle)
Requirements
= The power supply is switched on.
178Driving and parking