2022 MERCEDES-BENZ GLC SUV Owners Manual

Glide mode will be deactivated again if one of the
conditions is no long
er met.
Glide mode can also be prevented by the following
parameters:
= Incline
= Downhill gradient
= Temperature
= Height
= Speed
= Operating status of the engine
= TraPc situation Function of 4MATIC
4MA
TIC ensures that all four wheels are driven.
Together with ESP n
and 4ETS, 4MATIC improves
the traction of your vehicle whenever a driven
wheel spins due to insuPcient traction.
If you fail to adapt your driving style, 4MATIC can
neither reduce the risk of an accident nor override
the laws of physics. 4MATIC cannot take account
of road, weather and traPc conditions. 4MATIC is
only an aid. You are responsible especially for maintaining a safe distance from the vehicle in
fr
ont, for vehicle speed, for braking in good time
and for staying in lane.
% In wintry road conditions, the maximum eMect
of 4MA
TIC can be achieved only if you use
winter tyres (M+S tyres), with snow chains if
necessary. Refuelling
Refuelling the vehicle
&
WARNING Risk of Nr
e or explosion from
fuel
Fuels are highly Oammable. 
Fire, naked Oames, smoking and cr
eating
sparks must be avoided. 
Before refuelling, switch oM t
he vehicle
and, if Ntted, the stationary heater and
keep switched oM during Nlling. &
WARNING Risk of injur
y from fuels
Fuels are poisonous and hazardous to your
healt
h. 
Do not swallow fuel or let it come into
cont

act with skin, eyes or clothing. 
Do not inhale fuel vapour. 
Keep children away from fuel. 
Keep doors and windows closed during
t

he refuelling process.
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. 206
Driving and parking


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 =
P
etrol 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. *
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 Driving and parking
207

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 r

esult 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. 
Consult a q
ualiNed 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 vented before refuelling (  page 210).
This function is country-dependent.
Observe the notes on service Ouids and fuel. 208
Driving and parking

The recommended octane number for your vehi-
cle can be f
ound 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: The fuel Nller
Oap opens aut
omatically aser the fuel tank
has been vented ( page 210). 
Press on the rear part 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 diesel engine: The t
ank Nller
neck is designed for refuelling at diesel Nlling
pumps.
Your vehicle is equipped with an incorrect
fuelling protection system to prevent Nlling up
with the wrong fuel. This function may be
deactivated in some countries due to local cir-
cumstances. For more information, consult a
Mercedes-Benz service centre. %
Vehicles with diesel engine: R
efuel with at
least 5 litres of diesel if the fuel tank has been
run dry completely.
% Vehicles with diesel engine: Use a Nller nec
k
with a large diameter for vehicles with diesel
engine when topping up fuel from a fuel can.
Otherwise, the Nller neck cannot be pushed
into the tank shas.
Your vehicle is equipped with an incorrect
fuelling protection system to prevent Nlling up
with the wrong fuel. This function may be
deactivated in some countries due to local cir-
cumstances. 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. Driving and parking
209

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

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 441).
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.
qR
eNlling
AdBluen
* 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. The following messages appear in order in the
dr

iver's display when the AdBlue n
tank requires
reNlling:
= Refill AdBlue See Owner

Plug-in hybrid:
The f
ollowing messages appear in order in the
driver's display when the AdBlue n
tank requires
reNlling:
= Refill AdBlue See Owner


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. *
NOTE A
ccelerated 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- Driving and parking
213