MERCEDES-BENZ C-CLASS ESTATE 2021 Owners Manual

qSetting up the warning triangleFold 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 in the load compart-
ment in the les-hand stowage net.
Removing the Nre extinguisher&WARNING Risk of accident due to an
incorrectly secured Nre extinguisher in the
driver's footwell
A Nre extinguisher may impede pedal travel or
block a depressed pedal.
This jeopardises the operating and road safety
of the vehicle.
The Nre extinguisher can be Oung around and
injure the driver or other vehicle occupants.
Always store and secure the Nre extin-
guisher in the bracket.Do not remove the Nre extinguisher while
driving.Breakdown assistance329

Les-hand drive vehicle: pull tab 1 upwards.Right-hand drive vehicle: pull tab 1 down-
wards.Remove Nre extinguisher 2.
Flat tyre
Notes on Oat tyres
&WARNING Risk of accident due to a Oat
tyre
A Oat tyre severely aMects the driving charac-
teristics as well as the steering and braking of
the vehicle.
Tyres without run-Oat characteristics: Do not drive with a Oat tyre.Change the Oat tyre immediately with an
emergency spare wheel or spare wheel.
Alternatively, consult a qualiNed special-
ist workshop.
Tyres with run-Oat characteristics:
Observe the information and warning
notes on MOExtended tyres (run-Oat
tyres).
In the event of a Oat tyre, the following options are
available depending on your vehicle's equipment:
= Vehicles with MOExtended tyres: it is possible
to continue the journey for a short period of time. Make sure you observe the notes onMOExtended tyres (run-Oat tyres)
(  page 330).
= Vehicles with a TIREFIT kit: you can repair the
tyre so that it is possible to continue the jour-
ney for a short period of time. To do this, use
the TIREFIT kit (  page 332).
=
Vehicles with Mercedes me connect: you can
make a call for breakdown assistance via the overhead control panel in the case of a break-
down (  page 295).
= All vehicles: change the wheel (  page 357).
Notes on MOExtended tyres (run-Oat tyres)
&WARNING Risk of accident when driving in
limp-home mode
Driving in emergency mode impairs the han- dling characteristics of the vehicle.
Do not exceed the permissible maximumspeed of the MOExtended tyres.Avoid any abrupt steering and drivingmanoeuvres as well as driving over
obstacles (kerbs, pot holes, oM-road).
This applies, in particular, to a loaded
vehicle.Stop driving in the emergency mode if
you notice:
= banging noise
330Breakdown assistance

=vehicle vibration
= smoke which smells like rubber
= continuous ESP n
intervention
= cracks in the tyre sidewallsAser driving in emergency mode, have
the rims checked by a qualiNed specialist
workshop with regard to their further
use.The defective tyre must be replaced in
every case.
With MOExtended tyres (run-Oat tyres), you can
continue to drive your vehicle even if there is a
total loss of pressure in one or more tyres. How-
ever, the tyre aMected must not show any clearly
visible damage.
You can recognise MOExtended tyres by the
MOExtended marking which appears on the side wall of the tyre.
Vehicles with tyre pressure monitoring system:
MOExtended tyres may only be used in conjunc-
tion with an activated tyre pressure monitoring system.
If a pressure loss warning message appears in thedriver's display, proceed as follows:
= Check the tyre for damage.
= If driving on, observe the following notes.
Driving distance possible in emergency mode
aser the pressure loss warning:Load conditionDriving distance possi-
ble in emergency modePartially laden80 kmFully laden30 km
The driving distance possible in emergency mode
may vary depending on the driving style. Observe the maximum permissible speed of 80 km/h.
If a tyre has gone Oat and cannot be replaced with
an MOExtended tyre, you can use a standard tyre
as a temporary measure.
TIREFIT kit storage location
In the as-delivered state, TIREFIT kit 1 is located
on the les-hand side of the load compartment.
Depending on the vehicle's equipment, placing it under the load compartment Ooor is also possible.
%Depending on the power category (LK), the
tyre inOation compressor weighs as follows:
= LK1 !

The tyre inOation compressor is maintenance-
free. If there is a malfunction, please contact
a qualiNed specialist workshop.
Using the TIREFIT kit
Requirements:
= Tyre sealant bottle
= TIREFIT sticker
= Tyre inOation compressor
=
Gloves (depending on the vehicle equipment)
TIREFIT kit storage location: (  page 331)
You can use TIREFIT tyre sealant to seal perfora-
tion damage of up to 4 mm, particularly those in
the tyre contact surface. You can use TIREFIT in
outside temperatures down to -20 °C.
&WARNING Risk of accident when using
tyre sealant
The tyre sealant may be unable to seal the
tyre properly, especially in the following cases:
=there are cuts or punctures in the tyre
larger than damage previously mentioned.
=
the wheel rim is damaged.
= you have driven at very low tyre pressures
or on a Oat tyre.
Do not drive on.Consult a qualiNed specialist workshop.&WARNING Risk of injury and poisoning
from tyre sealant
Tyre sealant is hazardous to health and causes
irritation. Do not allow it to come into contact
with your skin, eyes or clothing, and do not
swallow it. Do not inhale any vapours. Keep the tyre sealant away from children.
Observe the following if you come into contact
with the tyre sealant:
Rinse oM the tyre sealant from your skin
using water immediately.If tyre sealant gets into your eyes, thor-
oughly rinse them using clean water immediately.If tyre sealant has been swallowed, thor-oughly rinse out your mouth immediately and drink plenty of water. Do not induce
vomiting and seek medical attention immediately.Change out of clothing which has come
into contact with tyre sealant immedi-
ately.If an allergic reaction occurs, seek medi-
cal attention immediately.*NOTE Overheating due to the tyre inOation
compressor running too longDo not run the tyre inOation compressor
for longer than ten minutes without inter- ruption.
Comply with the manufacturer's safety notes on
the sticker on the tyre inOation compressor.
332Breakdown assistance

Have the tyre sealant bottle replaced in a qualiNed
specialist workshop every Nve years.Do not remove any foreign objects which have
entered the tyre.APx part 1 of the TIREFIT sticker to the
instrument cluster within the driver's Neld of
vision.APx part 2 of the TIREFIT sticker near the
valve on the wheel with the defective tyre.Pull plug 4 with the cable and hose 5 out
of the tyre inOation compressor housing.Push the plug of hose 5 into Oange 6 of
tyre sealant bottle 1 until the plug engages.Place tyre sealant bottle 1 head downwards
into recess 2 of the tyre inOation compres-
sor.Remove the cap from valve 7 on the faulty
tyre.Screw Nlling hose 8 onto valve 7.Insert plug 4 into a 12 V socket in your vehi-
cle.Switch on the ignition.Press on and oM switch 3 on the tyre inOa-
tion compressor.
The tyre inOation compressor is switched on.
The tyre is inOated. First, tyre sealant is pum-
ped into the tyre. The pressure may brieOy rise
to approximately 500 kPa (5 bar/73 psi).Breakdown assistance333

Do not switch oM the tyre inOation compressor
during this phase!Let the tyre inOation compressor run for a
maximum of ten minutes. The tyre should then have attained a tyre pres-
sure of at least 200 kPa (2.0 bar/29 psi).
If tyre sealant leaks out, make sure you clean the
aMected area as quickly as possible. It is prefera-
ble to use clean water.
If you get tyre sealant on your clothing, have it cleaned as soon as possible with perchloroethy- lene.
If, aser ten minutes, a tyre pressure of 200 kPa
(2.0 bar/29 psi) has not been attained:
Switch oM the tyre inOation compressor.Unscrew the Nlling hose from the valve of the
defective tyre.
Please note that tyre sealant may leak out when
unscrewing the Nlling hose.
Very slowly drive forwards or reverse approx-
imately 10 m.Pump up the tyre again.
Aser a maximum of ten minutes the tyre pres-
sure must be at least 200 kPa (2.0 bar/
29 psi).&WARNING Risk of accident due to the
speciNed tyre pressure not being attained
If the minimum tyre pressure is not reached
aser the speciNed time, the tyre is too badly
damaged. The tyre sealant cannot repair the
tyre in this instance.
The braking and driving characteristics may be greatly impaired.
Do not continue driving.Consult a qualiNed specialist workshop.
If, aser ten minutes, a tyre pressure of 200 kPa
(2.0 bar/29 psi) has been attained:
&WARNING Risk of accident from driving
with sealed tyres
A tyre temporarily sealed with tyre sealant
impairs the handling characteristics and is not
suitable for higher speeds.
Adapt your driving style accordingly and
drive carefully.Do not exceed the maximum speed limit with a tyre that has been repaired using
tyre sealant.Observe the maximum permissible speed for a
tyre sealed with tyre sealant 80 km/h.APx the upper section of the TIREFIT sticker
to the instrument cluster in a location where it
will be easily seen by the driver.*NOTE Staining from leaking tyre sealant
Aser use, excess tyre sealant may leak out
from the Nlling hose.
Therefore, place the Nlling hose in the
plastic bag that contained the TIREFIT
kit.+ENVIRONMENTAL NOTE Environmental
pollution caused by environmentally irre-
sponsible disposal
Tyre sealant contains pollutants.
334Breakdown assistance

Have the tyre sealant bottle disposed of
professionally, e.g. at a Mercedes-Benz
Service Centre.Switch oM the tyre inOation compressor.Unscrew the Nlling hose from the valve of the
defective tyre.Stow the tyre sealant bottle and the tyre inOa-
tion compressor.Pull away immediately.Stop driving aser approximately ten minutes
and check the tyre pressure using the tyre inOation compressor.
The tyre pressure must now be at least
130 kPa (1.3 bar/19 psi).&WARNING Risk of accident due to the
speciNed tyre pressure not being attained
If the speciNed tyre pressure is not reached,
the tyre is too badly damaged. The tyre seal-
ant cannot repair the tyre in this instance.
The braking and driving characteristics may be
greatly impaired.
Do not continue driving.Consult a qualiNed specialist workshop.
Countries that have Mercedes-Benz Service24h:
you will Nnd a sticker with the telephone number,
e.g. on the B!äpillar on the driver's side.
Correct the tyre pressure if it is still at least
130 kPa (1.3 bar/19 psi). See the tyre pres-
sure table on the fuel Nller Oap for values.To increase the tyre pressure: switch on the
tyre inOation compressor.To reduce the tyre pressure: press pressure
release button 1 next to manometer 2.When the tyre pressure is correct, unscrew
the Nlling hose from the valve of the sealed
tyre.Screw the valve cap onto the valve of the sealed tyre.Pull the tyre sealant bottle out of the tyre inOa-
tion compressor. Press the locking tabs on the
yellow cap together to do this.
The Nlling hose stays on the tyre sealant bot-
tle.Drive to the nearest qualiNed specialist work-
shop and have the tyre, tyre sealant bottle and
Nlling hose replaced there.Breakdown assistance335

Battery (vehicle)
Notes on the 12 V battery
&WARNING Risk of an accident due to work
carried out incorrectly on the battery
Work carried out incorrectly on the battery
can, for example, lead to a short circuit. This can restrict functions relevant for safety sys-
tems and impair the operating safety of your
vehicle.
You could lose control of the vehicle in the fol-
lowing situations in particular:
= when braking
= in the event of abrupt steering manoeuvres
and/or when the vehicle's speed is not
adapted to the road conditions
In the event of a short circuit or a similar incident, contact a qualiNed specialist
workshop immediately.Do not drive on.Always have work on the battery carried
out at a qualiNed specialist workshop.=
Further information on ABS (  page 191)
= Further information on ESP n
( page 192)
For safety reasons, Mercedes-Benz recommends that you only use batteries which have been tes-ted and approved for your vehicle by Mercedes-Benz.
All vehicles except vehicles with a lithium-ion bat- tery&WARNING Risk of explosion due to elec-
trostatic charge
Electrostatic charge can ignite the highly
explosive gas mixture in the battery.
To discharge any electrostatic charge
that may have built up, touch the metal
vehicle body before handling the battery.
The highly Oammable gas mixture is created while
the battery is charging and during starting assis-
tance.
&WARNING Danger of chemical burns from
the battery acid
Battery acid is caustic.
Avoid contact with the skin, eyes or
clothing.Do not lean over the battery.Do not inhale battery gases.Keep children away from the battery.Immediately rinse battery acid oM thor-
oughly with plenty of clean water and
seek medical attention immediately.
All vehicles
+ENVIRONMENTAL NOTE Environmental
damage due to improper disposal of bat- teries
Batteries contain pollutants. It is illegal
to dispose of them with the household rub-
bish.
336Breakdown assistance


Dispose of batteries in an
environmentally responsible manner.
Take discharged batteries to a qualiNed
specialist workshop or to a collection
point for used batteries.
If you have to disconnect the 12 V battery, con- tact a qualiNed specialist workshop.
Comply with safety notes and take protective
measures when handling batteries.
Risk of explosion.Fire, naked Oames and smoking are
prohibited when handling the battery.
Avoid creating sparks.Electrolyte or battery acid is corrosive.
Avoid contact with the skin, eyes or
clothing. Wear suitable protective
clothing, in particular gloves, an apronand a face mask. Immediately rinse
electrolyte or acid splashes oM with
clean water. Consult a doctor if neces-
sary.Wear safety glasses.Keep children away.Observe this Owner's Manual.
Observe the following if you do not intend to use
the vehicle over an extended period of time:
= Activate standby mode.
= Alternatively: connect the battery to a battery
charger approved by Mercedes-Benz or con-
sult a qualiNed specialist workshop to discon-
nect the battery.
Notes on starting assistance and charging the 12
V battery
Vehicles with a lithium-ion battery
When charging the battery and during starting
assistance, always use the jump-start connection
point in the engine compartment.
*NOTE Damage to the battery from over-
voltage
When charging using a battery charger without
a restriction of the maximum charging voltage,
the battery or the on-board electronics can be
damaged.
Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
All other vehicles
When charging the battery and during starting
assistance, always use the jump-start connection
point in the engine compartment.
Breakdown assistance337

*NOTE Damage to the battery from over-
voltage
When charging using a battery charger without
a restriction of the maximum charging voltage,
the battery or the on-board electronics can be
damaged.
Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.&WARNING Risk of explosion from hydro-
gen gas igniting
There is a danger of hydrogen gas igniting
when charging the battery if there is a short
circuit or sparks start to form.
Make sure that the positive terminal of
the connected battery does not come
into contact with vehicle parts.Never place metal objects or tools on a
battery.The described order of the battery
clamps must be observed when connect-
ing and disconnecting the battery.When giving starting assistance, always make sure that you only connect batteryterminals with identical polarity.During starting assistance, you must
observe the described order for connect-
ing and disconnecting the jump lead.Do not connect or disconnect the bat-
tery clamps while the engine is running.&WARNING Risk of explosion during charg-
ing process and starting assistance
During the charging process and starting
assistance, the battery may release an explo-
sive gas mixture.
Avoid Nre, naked Oames, creating sparks
and smoking.Make sure there is suPcient ventilation.Do not lean over a battery.&WARNING Risk of explosion from a frozen
battery
A discharged battery may freeze at tempera-
tures slightly above or below freezing point.
During starting assistance or battery charging,
battery gas can be released.
Always allow a battery to thaw before
charging it or performing starting assis-
tance.
If the indicator/warning lamps in the instrument cluster do not light up at low temperatures, it is
very likely that the discharged battery has frozen.
In this case you may neither jump-start the vehi- cle nor charge the battery.
The service life of a battery that has been thawedmay be dramatically shortened. The starting char-
acteristics may be impaired, especially at low
temperatures.
It is recommended that you have a thawed battery checked at a qualiNed specialist workshop.
338Breakdown assistance