2022 MERCEDES-BENZ C-CLASS ESTATE Owners Manual

If you or other people come into contact with
fuel, obser
ve the following: 
Immediately rinse fuel oM y
our skin with
soap and water. 
If fuel comes into contact with your eyes,
immediat
ely rinse them thoroughly with
clean water. Seek medical attention
immediately. 
If you swallow fuel, seek medical atten-
tion immediat

ely. Do not induce vomit-
ing. 
Change immediately out of clothing that
has come int
o contact with fuel. &
WARNING Risk of Nr
e and explosion due
to electrostatic charge
Electrostatic charge can ignite fuel vapour. 
Before you open the fuel Nller cap or
t
ake hold of the pump nozzle, touch the
metallic vehicle body. 
To avoid creating another electrostatic
c

harge, do not get into the vehicle again
during the refuelling process. &
WARNING Risk of Nr
e from fuel mixture
Vehicles with a diesel engine:
If y
ou mix diesel fuel with petrol, the Oash
point of the fuel mixture is lower than that of
pure diesel fuel.
While the vehicle is running, component parts
in the exhaust system may overheat without
warning. 
Never refuel using petrol. 
Never mix petrol with diesel fuel. *
NOTE Damag
e caused by the wrong fuel Vehicles with a petrol engine:
Ev

en 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
spar
k-ignition engine fuel that conforms to European EN 228, or an equivalent
speciNcation.
Fuel of this speciNcation ma
y 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 on the vehicle. 
Consult a q
ualiNed specialist workshop.206
Driving and parking

*
NOTE Damag e caused by the wrong fuel Vehicles with a diesel engine:
Ev

en 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
t

hat 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 with one of the following fuels: = P

etrol
= Marine diesel
= Heating oil
= Pure bio-diesel or vegetable oil
= ParaPn or kerosene
If you have accidentally refuelled with the
wrong fuel: 
Do not switch on the vehicle. 
Consult a q
ualiNed specialist workshop. *
NOTE Do no
t use diesel to refuel vehicles
with a petrol engine If you have accidentally refuelled with the
wr
ong 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 q
ualiNed specialist workshop. 
Have the fuel tank and fuel lines drained
com

pletely. *
NOTE Do no
t use petrol to refuel vehicles
with a diesel engine If you have accidentally refuelled with the
wr
ong fuel:
= Do not switch on the vehicle. 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 q
ualiNed specialist workshop. 
Have the fuel tank and fuel lines drained
com

pletely. *
NOTE Damag
e to the fuel system due to
overNlling the fuel tank 
Only Nll t
he fuel tank until the pump noz-
zle switches oM.
If too much fuel has been added due, for
e
xample, to a faulty Nlling pump: 
Do not switch on the vehicle. Driving and parking
207


Consult a qualiNed specialist workshop.*
NOTE F
uel may spray out when you
remove the fuel pump nozzle 
Only Nll t
he fuel tank until the pump noz-
zle switches oM. Requirements:
= The v

ehicle is unlocked.
= Plug-in hybrid with petrol engine: the fuel tank
was depressurised before refuelling
(  page 209). This function is country-
dependent.
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. 1
Fuel Nller Oap
2 Bracket for fuel Nller cap
3 Tyre pressure table
4 QR code for rescue card
5 Fuel type
% Plug-in hybrid with petrol engine: t
he fuel Nller
Oap opens automatically aser the fuel tank
has been depressurised ( page 209). 
Press on the back area of fuel Nller Oap 1. 
Turn the fuel Nller cap anti-cloc
kwise and
remove it. 
Insert fuel Nller cap fr
om above into bracket
2. 
Completely insert the pump nozzle into the
t
ank Nller neck, hook in place and refuel. 
Only Nll t
he fuel tank until the pump nozzle
switches oM.
% Vehicles with a diesel engine: t
he tank Nller
neck is designed for refuelling at diesel Nlling
pumps.
Your vehicle is equipped with an incorrect
fuelling protector to prevent Nlling up with the
wrong fuel. This function may be deactivated
in some countries due to local circumstances.
For more information, consult a Mercedes-
Benz service centre.
% Vehicles with a diesel engine: when t
he fuel
tank is completely empty, top up with at least
5 litres of diesel. 208
Driving and parking

%
Vehicles with a diesel engine: use a Nller nec k
with a large diameter for vehicles with a diesel
engine when topping up fuel from a fuel can.
Otherwise, the Nller neck cannot slide into the
tank.
Your vehicle is equipped with an incorrect
fuelling protector to prevent Nlling up with the
wrong fuel. This function may be deactivated
in some countries due to local circumstances.
For more information, consult a Mercedes-
Benz service centre. 
Replace the cap on the Nller nec
k and turn
clockwise until it engages audibly. 
Close fuel Nller Oap 1. Depressurising the fuel tank (plug-in hybrid with
pe
trol engine) 
Pull switch 1 once br
ieOy.
Indicator lamp 2 will Oash and the Please
wait Depressurising fuel tank message will
appear on the driver's display.
When the fuel tank is depressurised, indicator
lamp 2 will light up continuously. The Fuel tank is depressurised Ready for
refuelling
messag

e will appear on the driver's
display and the fuel Nller Oap will open auto-
matically.
% Depressurising the fuel tank may take several
minut

es.
The fuel tank can be depressurised only if the
conditions descr
ibed above are fulNlled. Other-
wise, drive the vehicle at least 0.5 km and repeat
the process.
% In the following situations, there is a malfunc-
tion:
= Indicat

or lamp 2 Oashes initially and then
goes out.
= The yellow engine diagnostics warning
lamp


Only refuel when the fuel Nller Oap has
opened aut omatically. AdBlue
n
(v
ehicles with a diesel engine only) Notes on topping up AdBlue
n
A
dBlue n
is a water-soluble Ouid for the NOx
exhaust gas asertreatment of diesel engines. In
order for the exhaust gas asertreatment to func-
tion properly, only use AdBlue n
in accordance
with ISO 22241.
AdBlue n
is characterised by the following:
= non-toxic
= colourless and odourless
= non-Oammable
If you open the AdBlue n
tank, small amounts of
ammonia vapour may be released. Only Nll the
AdBlue n
tank in well-ventilated areas.
Do not let AdBlue n
come into contact with skin,
eyes or clothes. Keep AdBlue n
away from chil-
dren. Do not ingest AdBlue
n
. If A
dBluen
is swallowed,
immediately rinse your mouth out thoroughly.
Drink plenty of water. Seek medical attention at
once.
Observe the notes on operating Ouids
( page 445).
AdBlue n
is available here:
= AdBlue n
can be topped up by fast service at a
qualiNed specialist workshop, e.g. a
Mercedes-Benz Service Centre.
= AdBlue n
is available at many Nlling stations
from AdBlue n
Nlling pumps.
= Alternatively, AdBlue n
is available at qualiNed
specialist workshops, e.g. Mercedes-Benz
Service Centres, and at many Nlling stations in
AdBlue n
reNll canisters or AdBlue n
reNll bot-
tles.
% Ensure the connection between the r
eNll con-
tainer and vehicle Nller neck does not drip. Topping up AdBlue
n
* NOTE Engine damag
e due to AdBluen
being in the fuel 
AdBlue n
mus
t not be used to Nll the fuel
tank. 
Only use AdBlue n
t
o Nll the AdBlue n
tank. 
Do not o
verNll the AdBluen
tank. *
NOTE Cont
amination of the vehicle inte-
rior due to AdBlue n
leakage 
Aser t
opping up, carefully close the
AdBlue n
reNll container. 
Avoid carrying AdBlue n
r
eNll containers
permanently in the vehicle. Requirements:
= The v

ehicle is unlocked. 210
Driving and parking

The following messages appear in order in the
dr iver's display when the AdBlue n
tank requires
topping up:
= Refill AdBlue See Owner

Topping up AdBlue
n
Mer cedes-Benz recommends topping up AdBlue n
at a Nlling pump. If no AdBlue n
Nlling pump is
available, you can also top up AdBlue n
using a
canister. 
Screw on the fastener of AdBlue n
r
eNll canis-
ter 4. 
Screw the disposable hose 3 ont
o the open-
ing of AdBlue n
reNll canister 4 until hand-
tight. 
Screw the disposable hose 3 ont
o the Nller
neck of the vehicle until hand-tight. 
Lis up and tip A
dBluen
reNll canister 4.
The Nlling process stops when the AdBlue n
tank is completely full.
AdBlue n
reNll canister 4 can be removed
when it has been only partially emptied. 
Unscrew and close the disposable hose 3
and A
dBluen
reNll canister 4 in reverse
order. 
Replace AdBlue n
Nller cap 2 and tur
n it
clockwise until it audibly engages. 
Close fuel Nller Oap 1. 
Switch on the vehicle for at least 60 seconds.
% If the vehicle could not be started as the
A

dBlue n
tank was empty, it can take up to
60 seconds for the reNll to be detected. 
Start the vehicle. %
Avoid storing AdBlue n
r
eNll containers perma-
nently in the vehicle. Charging the high-voltage battery (plug-in
h
ybrid) Notes on charging the high-voltage battery
*
NOTE High-v
oltage battery damage due to
leaving the vehicle idle for lengthy periods
of time Lithium-ion batteries experience a natural self-
disc
harge.
Exhaustive discharging can therefore occur if
the vehicle is idle for several months. This can
damage the high-voltage battery. 
To avoid damage, please observe the fol-
lo

wing recommendations when handling
the high-voltage battery. 212
Driving and parking

*
NOTE Accelerated ageing of the high-volt-
age battery due to not observing the fol-
lowing recommendations As a result of its basic characteristics, the
s
torage capacity of and the amount of energy
available from the high-voltage battery decrea-
ses over the course of its life. Due to this, both
the maximum electrical range that can be ach-
ieved by the vehicle and its maximum electri-
cal output can be impaired.
The following factors could accelerate the age-
ing of the high-voltage battery:
= a high level of charge, especially if the
vehicle is idle for a lengthy period of time
= frequent rapid charging with direct current
(mode 4)
= leaving the vehicle idle for lengthy periods
at high ambient temperatures 
To avoid accelerated ageing, please
obser
ve the following recommendations
when handling the high-voltage battery. Recommendations when handling the high-voltage
batt
ery:
= Only charge the high-voltage battery with
direct current (mode 4) if necessary.
= If leaving the vehicle idle for lengthy periods,
park up the vehicle with a high-voltage battery
charge level between 25% and 30%. Do not
keep the high-voltage battery continuously
connected to power supply equipment.
= If leaving the vehicle idle for lengthy periods of
time avoid, if possible, high ambient tempera-
tures.
= Check the high-voltage battery's charge level
every six weeks (  page 229).
= Charge the high-voltage battery if the charge
level is below 15%.
= Do not disconnect the 12 V battery even if the
vehicle is les idle for a lengthy period. Other-
wise, the condition of the vehicle's high-volt-
age battery cannot be monitored. Depending on the equipment and national ver-
sion, y
our vehicle is equipped with one of the fol-
lowing vehicle sockets:
= Type 1 for charging with alternating current
(mode 2/3)
= Type Combo 1 for charging with alternating
current (mode 2/3) and charging with direct
current (mode 4)
= Type 2 for charging with alternating current
(mode 2/3)
= Type Combo 2 for charging with alternating
current (mode 2/3) and charging with direct
current (mode 4) Driving and parking
213