2022 MERCEDES-BENZ C-CLASS SALOON Owners Manual

=
mobile phones
= electr
onic devices (notebooks, tablets)
= shielding due to metal objects or induction
loops for electrical gate systems or automatic
barriers 
Make sure that there is suPcient dis
tance
between the key and the potential source of
interference. Activating or deactivating the automatic locking
f

eature Multimedia system:
4 © 5
Settings 5
Vehicle
5 Open/close
% The vehicle is locked automatically when the
v
ehicle is switched on and the wheels are
turning faster than walking pace. 
Activate or deactivate Automatic locking.
In the following situations, there is a danger of
being loc
ked out when the function is activated:
= The vehicle is being towed or pushed. =
If t
he vehicle is being tested on a roller dyna-
mometer. Locking/unlocking the vehicle with the emer-
g

ency key Unlocking a
les-hand v
ehicle door with the emer-
gency key element 
Remove the emergency key (  pag
e 81). 
Slightly pull and hold door handle 1. 
Insert emergency key 2 int
o the lock cylinder
as shown. 
Turn the 2 emer
gency key anti-clockwise to
1 position. 
Turn the emergency key 2 bac
k to its start-
ing position. 86
Opening and closing


Remove emergency key 2 and r elease door
handle 1.
Locking the doors 
Insert a suitable object, e.g. the emergency
k
ey, into opening 1 on the door lock. 
To lock the les-hand side of t
he vehicle: turn
the emergency key anti-clockwise as far as it
will go. 
To lock the right-hand side of the vehicle: tur
n
the emergency key clockwise as far as it will
go.
If the locked door is then closed, it can no longer
be opened fr
om the outside. Boot
Opening the boot lid
&
DANGER Risk of e
xhaust gas poisoning
Combustion engines emit poisonous exhaust
g
ases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the boot
lid is open when the engine is running, espe-
cially if the vehicle is in motion. 
Always switch oM t
he engine before
opening the boot lid. 
Never drive with the boot lid open. *
NOTE Damag
e to the boot lid by obstacles
above the vehicle The boot lid swings upwards when it is
opened.

Therefore, make sure that there is suP-
cient clear

ance above the boot lid. 
Pull the boot lid handle. 
Vehicles with HANDS-FREE ACCESS: mak
e a
kicking movement with your foot below the
bumper ( page 90). Opening and closing
87

Vehicles with boot lid convenience closing

Pull remote operating switch 1 until t he boot
lid opens.
or 
Press and hold the - butt
on on the key.
If the boot lid is stopped in an intermediate
position, pull it upw ards. Release it as soon as
it begins to open. 
With the boot lid opening limiter activated,
manuall

y pull the stopped boot lid upwards.
If an obstacle obstructs the boot lid during the
aut
omatic opening process, blockage detection
will stop the boot lid. The automatic blockage
detection function is only an aid and is not a sub-
stitute for your attentiveness. Closing the boot lid
&
WARNING Risk of injur
y from unsecured
items in the vehicle
If objects, luggage or loads are not secured or
no
t secured suPciently, they could slip, tip
over or be thrown around and thereby hit vehi-
cle occupants.
There is a risk of injury, particularly in the
event of sudden braking or a sudden change
in direction. 
Always stow objects in such a way that
t

hey cannot be thrown around. 
Before the journey, secure objects, lug-
g

age or loads against slipping or tipping
over. Observe the notes on loading the vehicle.
Notes on closing the boot lid:
y
our vehicle is
equipped with automatic key recognition. If a key
belonging to the vehicle is detected in the vehicle,
the boot lid will not be locked and will pop open
again.
Note that the boot lid will not be locked if the fol-
lowing situation occurs:
= You have locked the vehicle and close the
boot lid while a key belonging to the vehicle is
inside the vehicle.
and
= A second key belonging to the vehicle is not
detected outside the vehicle.
Automatic key recognition is only an aid and is not
a substitute for your attentiveness. 
Before locking, ensure that at least one key
belonging t

o the vehicle is outside the vehicle. 88
Opening and closing


To close the boot lid: pull t he boot lid down-
wards using the handle recess and push it
closed.
Vehicles with boot lid convenience closing &
WARNING Risk of becoming tr
apped dur-
ing automatic closing of the boot lid
Parts of the body could become trapped.
Ther
e may be people in the closing area. 
Make sure that nobody is in the vicinity
of t
he closing area. 
Use one of the following options to stop
t

he closing process:
= Press the - button on the key.
= Press or pull the remote operating
switch on the driver's door.
= Press the closing or locking button
on the boot lid.
= Pull the boot lid handle. Vehicles with HANDS-FREE ACCESS:
it is also
possible t
o stop the closing process by making a
kicking movement below the rear bumper. 
Pull the boot lid handle. Release it as soon as
it begins t

o close. 
If the boot lid is stopped in an intermediate
position, push it do
wnwards.
The boot lid will continue to close. 
Push remote operating switch 1 until t
he
boot lid is fully closed. 
Press closing button 1 on t
he boot lid.
Vehicles with KEYLESS-GO 
Press locking button 2 on t
he boot lid.
If a key is detected outside the vehicle, the
boot lid will close and the vehicle will be
locked. Opening and closing
89


With the boot lid completely open, press and
hold t
he - button on the key. The key must
be in the vicinity of the vehicle.
Vehicles with HANDS-FREE ACCESS 
With the boot lid completely open, make a
kic
king movement with your foot below the
bumper ( page 90).
Boot lid automatic reversing function
The boo
t lid is equipped with automatic blockage
detection with a reversing function. If an obstacle
obstructs the boot lid during the automatic clos-
ing process, it will automatically open again. The
automatic reversing function is only an aid and is
not a substitute for your attentiveness. 
During the closing process, make sure that no
body par
ts are in the closing area. &
WARNING Risk of becoming tr
apped
despite reversing function
The reversing function will not react:
= t

o sos, light and thin objects, e.g. Nngers
= towards the end of the closing procedure In these situations in particular, the reversing
function canno

t prevent someone being trap-
ped. 
Ensure that no body parts are in the
closing ar
ea. 
If someone is trapped, use one of the fol-
lo

wing options:
= Press the - button on the key.
= Press the remote operating switch on
the driver's door.
= Press the closing or locking button
on the boot lid.
= Pull the boot lid handle. HANDS-FREE ACCESS function
With HANDS-FREE ACCESS you can open, close
or int
errupt boot lid movement by performing a
kicking movement under the rear bumper.
The kicking movement triggers the opening or
closing process alternately.
Observe the notes when opening (  page 87)
and closing ( page 88) the boot lid.
% A warning tone sounds while the boot lid is
opening or closing. 90
Opening and closing

&
WARNING Risk of bur ns caused by a hot
exhaust system
The vehicle exhaust system can become very
ho
t. If you use HANDS-FREE ACCESS, you
could burn yourself by touching the exhaust
system. 
Always ensure that you only make a kick-
ing mo

vement within the detection range
of the sensors. *
NOTE Damag
e to the vehicle caused by
unintentionally opening the boot lid =
when using an aut
omatic car wash
= when using a high pressure cleaner 
Deactivate the function of the key in
t

hese situations.
or 
Make sure that the key is at a minimum
dis

tance of 3 m away from the vehicle. When making the kicking movement, make sure
t

hat you are standing Nrmly on the ground. You
could otherwise lose your balance, e.g. on ice.
Observe the following notes: = The key is behind the vehicle.
= Stand at least 30 cm away from the vehicle
while performing the kicking movement.
= Do not come into contact with the bumper
while making the kicking movement.
= Do not carry out the kicking movement too
slowly.
= The kicking movement must be towards the
vehicle and back again. 1
Detection range of the sensors
If several consecutive kicking movements are not
successful, w
ait ten seconds.
System limits
The system may be impaired or may not function
in the following cases:
= The sensors are dirty, e.g. due to road salt or
snow.
= The kicking movement is made using a pros-
thetic leg. Opening and closing
91

The boot lid could be opened or closed uninten-
tionall
y, in the following situations:
= A person's arms or legs are moving in the sen-
sor detection range, e.g. when polishing the
vehicle or picking up objects.
= Objects are moved or placed behind the vehi-
cle, e.g. the hose of a fuel dispenser, a charg-
ing cable or luggage
= Clamping straps, tarpaulins or other coverings
are pulled over the bumper.
= A protective mat with a length reaching over
the boot sill down into the detection range of
the sensors is used.
= The protective mat is not secured correctly.
= Work is being done on the trailer hitch, trailers
or rear bicycle racks.
Deactivate the function of the key (  page 80) or
do not carry the key about your person in such
situations. Switching separate boot locking on and
oM Multimedia system:
4 © 5
Settings 5
Vehicle
5 Closing functioning
Switc

hing separate boot locking on 
Select Block boot . 
Create a PIN. 
Press OK t
o conNrm the PIN. 
Enter the PIN again and conNr
m it.
The boot will remain locked if you unlock the
vehicle centrally.
% If an accident has been detected, the boot will
unloc

k even if separate locking is switched
on.
% You can open the boot with the emergency
k
ey even while boot locking is active. Sepa-
rate boot locking will remain active.
Switching separate boot locking oM 
Select Block boot . 
Enter the PIN.
If t

he PIN is correct, separate boot locking will
be switched oM and the PIN deleted. Activating/deactivating the boot lid opening lim-
it
er Multimedia system:
4 © 5
Settings 5
Vehicle
5 Other functions 
Activate or deactivate the Opening height lim-
iter.
This function prevents the boot lid from hitting a
lo
w garage ceiling, for example. 92
Opening and closing

Side windows
Opening and closing the side windows
&
WARNING Risk of becoming tr apped when
opening a side window
When you open a side window, parts of the
body could be dr
awn in or become trapped
between the side window and window frame. 
When opening, make sure that nobody is
t
ouching the side window. 
If someone is trapped, release the but-
t
on immediately or pull it in order to
close the side window again. &
WARNING Risk of becoming tr
apped when
closing a side window
When closing a side window, body parts could
be tr
apped in the closing area in the process. 
When closing, make sure that no body
par

ts are in the closing area. 
If someone is trapped, release the but-
t
on immediately or press the button in
order to reopen the side window. &
WARNING Risk of becoming tr
apped when
children operate the side windows
Children could become trapped if they operate
t
he side windows, particularly when unatten-
ded. 
Activate the child safety lock for the rear
side windo
ws. 
When leaving the vehicle, always take the
k
ey with you and lock the vehicle. 
Never leave children unattended in the
v
ehicle. Requirements:
= The po

wer supply or the vehicle has been
switched on. 1
Closing
2 Open
The buttons on the driver's door take precedence. 
To start automatic operation: pr
ess the b
button beyond the point of resistance or pull
and release it. 
To interrupt automatic operation: pr
ess or pull
the b button again. Opening and closing
93