MERCEDES-BENZ C CLASS 2023 Owners Manual

Make sure that no windshield washer
concentrate spills out next to the Nller
opening.Open cap 1 by the tab.Add washer Ouid.\bFurther information about the windshield
washer Ouid ( page 379)Keeping the air/water duct freeKeep the area between the hood and the
windshield free of deposits, e.g. ice, snow or
leaves.
Cleaning and care
Information on washing the vehicle in a car wash
&WARNING Risk of accident due to
reduced braking eMect aser washing the
vehicle
The braking eMect is reduced aser washing
the vehicle.
Aser the vehicle has been washed, brake
carefully while paying attention to the
traPc conditions until the braking eMect
has been fully restored.*NOTE Damage from automatic braking
If one of the following functions is activated,
the vehicle will brake automatically in certain
situations:
= Active Brake Assist
= Active Distance Assist DISTRONIC
= HOLD function
= Active Parking Assist
To avoid damage to the vehicle, deactivate
these systems in the following or similar situa-
tions:
During towing.In a car wash.*NOTE Damage due to unsuitable car washBefore driving into a car wash make sure
that the car wash is suitable for the vehi-
cle dimensions.Maintenance and care309

Ensure there is suPcient ground clear-
ance between the underbody and the guide rails of the car wash.Ensure that the clearance width of the
car wash, in particular the width of the
guide rails, is suPcient.
To avoid damage to your vehicle when using a car
wash, ensure the following beforehand:
= Active Distance Assist DISTRONIC is deactiva-
ted.
= The HOLD function is switched oM.
= The 360° camera or the reversing camera is
switched oM.
= The side windows and sliding sunroof are com-
pletely closed.
= The outside mirrors are folded in.
= The blower for the ventilation and heating is
switched oM.
= The windshield wiper switch is in position Z.
= The key is at a minimum distance of 10 s
(3 m) away from the vehicle. Otherwise, the trunk lid could open unintentionally.
= For car washes with a conveyor system:
- Neutral \\ is engaged.
- If you would like to leave the vehicle while
it is being washed, make sure the key islocated in the vehicle. Park position ]
will otherwise be engaged automatically.\bIf, aser the car wash, you remove the wax
from the windshield and wiper rubbers, this
will prevent smearing and reduce wiper noise.
Automatic car wash mode
In car wash mode, the vehicle is prepared for driv-
ing into an automatic car wash. Car wash mode
can be activated at a speed of up to 12 mph
(20 km/h) (  page 311).
When car wash mode is activated, the Automatic
Car Wash Mode Active message will appear on
the driver\bs display. The following adjustments will
be made:
= The outside mirrors will be folded in.
= To prevent the windshield washer system from
starting up automatically, the rain sensor will
be deactivated.
= Parking Assist PARKTRONIC will be deactiva-
ted.
= Vehicles with 360° camera: the front image
will be activated aser approximately eight sec-
onds.
= Vehicles with HANDS-FREE ACCESS: kick rec-
ognition will be deactivated.
If one of the settings cannot be selected, this will be shown by the symbol next to the respec-
tive setting.
Pressing Switch Off will cancel car wash mode.
Above a speed of 12 mph (20 km/h), car wash mode will be deactivated automatically.
You can also switch oM car wash mode via the
MBUX multimedia system (  page 311).
The following settings will be reset when car wash
mode is deactivated:
= The outside mirrors will be folded out.
= The rain sensor will be activated.
= Parking Assist PARKTRONIC will be reset to
the previously selected setting.310Maintenance and care

=Vehicles with 360° camera: the front image
will be deactivated at speeds above 11 mph
(18 km/h).
= Vehicles with HANDS-FREE ACCESS: kick rec-
ognition will be activated.
Activating/deactivating automatic car wash mode
Requirements:
= The vehicle is stationary.
= The vehicle is switched on.
Multimedia system: 4 © 5
Settings 5
Vehicle 5
Driving
Activating automatic car wash mode
Select Automatic Car Wash Mode .Select Activate .
If one of the settings cannot be selected, this is
shown by a next to the respective setting.
\bFor an overview of the settings made when
activating automatic car wash mode
(  page 309).Deactivating automatic car wash modeSelect Deactivate .
The automatic car wash settings are reset.\bThe automatic car wash mode is automatically
deactivated as soon as a speed of 12 mph
(20 km/h) is exceeded.
Information on using a power washer
&WARNING Risk of an accident when using
power washers with round-spray nozzles
The water jet can cause externally invisible
damage.
Components damaged in this way may unex-
pectedly fail.
Do not use a power washer with round- spray nozzles.Have damaged tires or chassis parts
replaced immediately.To avoid damage to your vehicle, observe the fol- lowing when using a power washer:
= The key is at a minimum distance of 10 s
(3 m) away from the vehicle. Otherwise, the
trunk lid could open unintentionally.
= Maintain a distance of at least 11.8 in (30 cm)
to the vehicle.
= Vehicles with decorative Nlms: parts of your
vehicle are covered with a decorative Nlm.
Maintain a distance of at least 27.6 in (70 cm) between the Nlm-covered parts of the vehicle
and the nozzle of the power washer. Move the power washer nozzle around while cleaning.
The water temperature of the power washer
must not exceed 140°F (60°C).
= Observe the information on the correct dis-
tance in the equipment manufacturer\bs oper-
ating instructions.
= Do not direct the nozzle of the power washer
directly at sensitive parts, e.g. tires, gaps,
electrical components, batteries, illuminants or louvers.Maintenance and care311

Washing the vehicle by hand*NOTE Engine damage due to water ingressTake care not to point the water jet
directly towards the air inlet grille below the hood.
Observe the relevant legal requirements (e.g. in
some countries, washing by hand is permitted
only in specially designated wash bays).
Use a mild cleaning agent (e.g. car shampoo).Wash the vehicle with lukewarm water using a
sos car sponge. When doing so, do not
expose the vehicle to direct sunlight.Carefully hose the vehicle oM with water and
dry using a chamois.\bObserve the notes on the care of car parts
(  page 313).
Notes on paintwork/matt Nnish paintwork care
To avoid damaging the paintwork and interfering
with the driving assistance systems, please
observe the following notes:
Paint
= Insect remains: soak with insect remover and
rinse oM the treated areas aserwards.
= Bird droppings: soak with water and rinse oM
aserwards.
= Tree resin, oils, fuels and greases: remove by
rubbing gently with a cloth soaked in petro- leum ether or lighter Ouid.
= Coolant and brake Ouid: remove with a damp
cloth and clean water.
= Tar stains: use tar remover.
= Wax: use silicone remover.
= Do not attach stickers, Nlms or similar materi-
als. Have Nlm attached to the bumper only at
a qualiNed specialist workshop.
= Remove dirt immediately, where possible.
Matt Nnish
= Use only care products approved for
Mercedes-Benz.
= Do not attach stickers, Nlms or similar materi-
als. Have Nlm attached to the bumper only at
a qualiNed specialist workshop.=
Do not polish the vehicle and alloy wheels.
= Use only car washes that correspond to the
latest engineering standards.
= Do not use any car wash program with a Nnal
hot wax treatment.
= Do not use paint cleaners, buPng or polishing
products or gloss preservers, e.g. wax.
In the event of paintwork damage:
= Always have paintwork repairs carried out at a
qualiNed specialist workshop.
= Make sure the radar sensors function
(  page 179).
Notes on cleaning decorative Nlms
Observe the "Notes on paintwork/matte Nnish
paintwork care" (  page 312). They also apply to
matte decorative Nlms.
Observe the notes on cleaning decorative Nlms to
avoid damage.
Cleaning
= For cleaning, use plenty of water and a mild
cleaning agent without additives or abrasive
312Maintenance and care

substances (e.g. a car shampoo approved for
Mercedes-Benz).
= Remove dirt as soon as possible. Avoid rub-
bing too hard in order not to damage the dec- orative Nlm irreparably.
= If there is dirt on the Nnish or if the decorative
Nlm is dull: use the paint cleaner recommen-
ded and approved for Mercedes-Benz.
= Insect remains: soak with insect remover and
rinse oM the treated areas aserwards.
= Bird droppings: soak with water and rinse oM
aserwards.
= To prevent water stains, dry a Nlm-wrapped
vehicle with a sos, absorbent cloth aser every
car wash.
Avoiding damage to the decorative Nlm
= The service life and color of decorative Nlms
are impaired by:
- Sunlight
- Temperature (e.g. hot air blower)
- Weather conditions
- Stone chippings and dirt-Chemical cleaning agents
- Oily products
= Do not use polish on matte decorative Nlm.
Polishing will have the eMect of shining the
Nlm-wrapped surface.
= Do not treat matte or structured decorative
Nlms with wax. Permanent stains may occur.
Scratches, corrosive deposits, areas aMected by
corrosion and damage caused by incorrect care
cannot always be completely repaired. In this case, contact a qualiNed specialist workshop.
You can obtain more information on care and
cleaning agents from the manufacturer.
In the case of Nlm-wrapped surfaces, visual diMer-
ences may occur between the surfaces that were
not protected by a decorative Nlm aser a decora-
tive Nlm has been removed.\bHave work or repairs to decorative Nlms car-
ried out at a qualiNed specialist workshop
(e.g. at an authorized Mercedes-Benz Center).Notes on care of car parts&WARNING Risk of entrapment if the wind-
shield wipers are switched on while the
windshield is being cleaned
If the windshield wipers are set in motion
while you are cleaning the windshield or wiper
blades, you can be trapped by the wiper arm.
Always switch oM the windshield wipers
and the vehicle before cleaning the wind-
shield or wiper blades.
To avoid damage to the vehicle, observe the notes
on cleaning and care of the following car parts:
Wheels and rims
= Use water and acid-free alloy wheel cleaners.
= Do not use acidic alloy wheel cleaners to
remove brake dust. This could damage wheel
bolts and brake components.
= To avoid corrosion of the brake disks and
brakepads, drive the vehicle for a few minutes
aser cleaning before parking it. The brake
disks and brakepads will warm up and dry out.
Maintenance and care313

Windows
= Clean the windows inside and outside with a
damp cloth and with a cleaning agent recom- mended for Mercedes-Benz.
= Do not use dry cloths or abrasive or solvent-
based cleaning agents to clean the insides of windows.\bAser changing the wiper blades or treating
the vehicle with wax, clean the windshield
thoroughly with cleaning agents recommen- ded for Mercedes-Benz. Failure to observe the
application instructions may result in damage,
smear marks or glare spots.\bRemove external fogging or dirt on the wind-
shield in front of the multifunction camera.
Otherwise, driving systems and driving safety
systems may be impaired or unavailable
(  page 179).
Wiper blades
= Move the wiper arms into the replacement
position (  page 134).
= With the wiper arms folded out, clean the
wiper blades with a damp cloth.
\bMake sure that the wiper blades are coated.
The coating may leave residue on a cloth. Do
not rub the wiper blades excessively or clean them too osen.
Exterior lighting
= Clean the lenses with a wet sponge and mild
cleaning agent (e.g. car shampoo).
= Use only cleaning agents or cleaning cloths
that are suitable for plastic lenses.
Sensors = Clean the sensors in the front and rear bump-
ers with a sos cloth and car shampoo
(  page 179).
= When using a power washer, maintain a mini-
mum distance of 11.8 in (30 cm).
Rear view camera and 360° camera = Open the camera cover with the multimedia
system (  page 228).
= Use clean water and a sos cloth to clean the
camera lens.
= Do not use a power washer.
Notes on care of the interior&WARNING Risk of injury from plastic parts
breaking oM aser the use of solvent-based
care products
Care and cleaning products containing sol-
vents can cause surfaces in the cockpit to
become porous. When the airbags are
deployed, plastic parts may break away.
Do not use any care or cleaning products
containing solvents to clean the cockpit.&WARNING Risk of injury or fatal injuries
from bleached seat belts
Bleaching or dyeing seat belts can severely weaken them.
This can, for example, cause seat belts to tear
or fail in an accident.
Never bleach or dye seat belts.
To avoid damage to the vehicle, observe the fol- lowing notes on cleaning and care:
314Maintenance and care

Seat belts= Clean with lukewarm soapy water.
= Do not use chemical cleaning agents.
= Do not dry by heating them to over 176°F
(80°C) or exposing them to direct sunlight.
Display
= Switch oM the display and let it cool down.
= Clean the surface carefully with a microNber
cloth and a suitable display care product (TFT-
LCD).
= Do not use any other agents.
Head-up display = Clean with a sos, non-static, lint-free cloth.
= Do not use cleaning agents.
Plastic trim
= Clean with a damp microNber cloth.
= For heavy soiling: use a cleaning agent recom-
mended for Mercedes-Benz.
= Do not attach stickers, Nlms or similar materi-
als.= Do not allow cosmetics, insect repellent or
sun cream to come into contact with the plas- tic trim.
Real wood and trim elements
= Clean with a microNber cloth.
= Black piano-lacquer look: clean with a damp
cloth and soapy water.
= For heavy soiling: use a cleaning agent recom-
mended for Mercedes-Benz.
= Do not use solvent-based cleaning agents, pol-
ishes or waxes.
Roof lining
= Clean with a brush or dry shampoo.
Carpet
= Use a carpet and textile cleaning agent recom-
mended for Mercedes-Benz.
Steering wheel made of genuine leather or DINA-
MICA*NOTE Damage caused by wrong cleanersDo not use solvent-based cleaning
agents such as tar remover or wheelcleaner; neither should you use polishes
or waxes. Otherwise you may damage
the Nnish.
=
Clean with a damp cloth and 1% soapy water
solution and then wipe with a dry cloth.
= For heavy soiling: use a cleaning agent recom-
mended for Mercedes-Benz.
= Leather care: use a leather care agent that
has been recommended for Mercedes-Benz.
= Do not allow the leather to become too damp.
= Do not use a microNber cloth.
\bLeather is a natural product. It exhibits natural
surface properties such as diMerences in
structure, marks caused by growth and injury or subtle color diMerences. These surface
properties are characteristics of leather and not material faults. What\bs more, leather issubject to a natural aging process during
which the surface properties change.
Genuine leather seat covers
= Vacuum up dirt such as crumbs or dust and
then clean the seat covers with a damp cotton
Maintenance and care315

cloth and wipe down with a dry cloth. Regu-
larly clean the seat covers.
= For heavy soiling: use a leather care agent rec-
ommended for Mercedes-Benz asercare.
= Leather care: use a leather care agent that
has been recommended for Mercedes-Benz.
= Do not use a microNber cloth.
= Do not allow the leather to become too damp.
= Do not use oil-based cleaning and care prod-
ucts.\bLeather is a natural product. It exhibits natural
surface properties such as diMerences in
structure, marks caused by growth and injury or subtle color diMerences. These surface
properties are characteristics of leather and not material faults. What\bs more, leather issubject to a natural aging process during
which the surface properties change. Regular cleaning and care of the leather
reduces soiling, wear marks and aging dam-
age and thus signiNcantly extends its life
span. Clothing that can leave stains (e.g.
jeans) may discolor the leather.DINAMICA seat covers
= Clean with a damp cloth.
= Do not use a microNber cloth.
Imitation leather seat covers = Vacuum up dirt such as crumbs or dust and
then use a damp cotton cloth and a 1% soapsolution to clean the entire seat cover. Do notspot clean.
= Use cleaning and care products recommen-
ded for Mercedes-Benz.
= Do not use a microNber cloth.
= Do not use oil-based cleaning and care prod-
ucts.
Fabric seat covers
= Vacuum up dirt such as crumbs or dust and
then use a damp microNber cloth and a 1%
soap solution to clean the entire seat cover. Do not spot clean.
= Use cleaning and care products recommen-
ded for Mercedes-Benz.
= Do not use oil-based cleaning and care prod-
ucts.EASY-PACK trunk box = Clean with a damp cloth.
= Do not use any alcohol-based thinners, gaso-
line or abrasive cleaning agents.316Maintenance and care

Emergency
Removing the safety vest
The safety vests are located in the stowage com-
partments in the driver\bs and front passenger
door.
Pull out safety vest bag 1 by the loop.Open the safety vest bag and pull out the
safety vest.1Maximum number of washes2Maximum wash temperature3Do not bleach4Do not iron5Do not tumble dry6Do not dry clean7Class 2 safety vest
The requirements deNned by the legal standard
are fulNlled only if the safety vest is the correct
size and is fully closed.
Replace the safety vest in the following cases:
= The reOective strips are damaged or dirty
=
The maximum permissible number of washes
is exceeded
= The Ouorescence has faded
Warning triangle

qRemoving the warning triangle
Breakdown assistance317

Push both sides of warning triangle holder 1
in the direction of the arrow and open it.Remove warning triangle 2.
The warning triangle is located in the trunk lid.

q Setting up the warning triangle
Fold side reOectors 1 upwards to form a tri-
angle and attach at the top using upper press- stud 2.Fold legs 3 down and out to the side.
First-aid kit (sos-sided) overview
First-aid kit (sos-sided) 1 is located on the les-
or right-hand side of the cargo compartment, depending on the vehicle version.
Flat tire
Notes on Oat tires
&WARNING Risk of accident due to a Oat
tire
A Oat tire severely aMects the driving charac-
teristics as well as the steering and braking of
the vehicle.
Tires without run-Oat characteristics:
Do not drive with a Oat tire.Change the Oat tire immediately with an
emergency spare wheel or spare wheel.
Alternatively, consult a qualiNed special-
ist workshop.
Tires with run-Oat characteristics:
Observe the information and warning
notes on MOExtended tires (run-Oat
tires).
In the event of a Oat tire, the following options are
available depending on your vehicle\bs equipment:
= Vehicles with MOExtended tires: it is possible
to continue the journey for a short period of
time. Make sure you observe the notes on MOExtended tires (run-Oat tire) ( page 319).
= Vehicles with a TIREFIT kit: you can repair the
tire so that it is possible to continue the jour-
ney for a short period of time. To do this, use the TIREFIT kit (  page 320).
= Vehicles with Mercedes me connect: you can
make a call for breakdown assistance via the
318Breakdown assistance