MERCEDES-BENZ S CLASS 2023 Owners Manual

=When using a high pressure cleanerDeactivate the function of the SmartKey
in these situations.
or
Make sure that the SmartKey is at a min-
imum distance of 10 "s (3 m) (power
washer) or 20 "s (6 m) (automatic car
wash) away from the vehicle.
Observe the notes:
= on washing the vehicle in a car wash
(  page 410)
= on using a high pressure cleaner
(  page 412)
Unlocking the vehicle: with the door handle
extended, touch the inside surface of door
handle 1.
If the door handle is not extended, e.g. a"ser a
waiting period:
Touch sensor surface 2 to unlock.Opening and closing89

To lock the vehicle: touch recessed sensor
surface 3.Convenience closing: touch recessed sensor
surface 3 for an extended period.\bFurther information on convenience closing
(  page 102).Problems with KEYLESS-GO, troubleshooting
You can no longer lock or unlock the vehicle using
KEYLESS-GO
Possible causes: = The function of the SmartKey has been deacti-
vated.
= The SmartKey battery is weak or discharged.
Activate the function of the SmartKey
(  page 84).Check the battery using the indicator lamp
(  page 82).Replace the SmartKey battery, if necessary
(  page 85).Use the replacement SmartKey.Use the emergency key to lock or unlock
(  page 91).Have the vehicle and SmartKey checked at a
quali"Ned specialist workshop.There is interference from a powerful radio signal
source
Possible causes if the function of KEYLESS-GO is
impaired:
= High voltage power lines
= Mobile phones
= Electronic devices (notebooks, tablets)
= Shielding due to metal objects or induction
loops for electrical gate systems or automatic
barriersMake sure that there is su"Pcient distance
between the SmartKey and the potential
source of interference.
Activating or deactivating the automatic locking
feature
Multimedia system:
4 © 5
Settings 5
Vehicle
5 Open/Close
\bThe vehicle is locked automatically when the
vehicle is switched on and the wheels are
turning faster than walking pace.90Opening and closing

Activate or deactivate Automatic Door Lock.
In the following situations, there is a danger of
being locked out when the function is activated:
= The vehicle is being towed or pushed.
= If the vehicle is being tested on a roller dyna-
mometer.
Power closing function
&WARNING Risk of becoming trapped when
the doors close automatically
Body parts or objects can become trapped,
causing injuries.
Ensure that no body parts or objects are
in the closing area.Automatic closing of the doors can be
canceled by pulling the outer or inner
door handle.
If you push the door into the lock to the "Nrst
detent position, the power closing function will
automatically pull the door into the lock.
\bAutomatic closing of the doors may be trig-
gered if the vehicle is locked from the outside, or during pulling away.
Locking/unlocking the vehicle with the mechani-cal key
Unlocking a le"s-hand vehicle door with the
mechanical key
\bIf you unlock and open the driver\bs door with the mechanical key, this triggers the burglar
alarm system.\bIf you unlock the driver\bs door with the
mechanical key, the trunk lid will not be
unlocked.
Vehicles without KEYLESS-GO
Remove the mechanical key (  page 84).Pull and hold the door handle.Insert the mechanical key into the lock cylin-
der.Turn the mechanical key counter-clockwise to
position G.Turn the mechanical key back to its starting
position.Opening and closing91

Remove the mechanical key and release thedoor handle.
Vehicles with KEYLESS-GO
Remove the mechanical key (  page 84).
If the door handle is retracted:
Insert a "Oat, non-metallic object behind door
handle 1 from above and pry it slightly out-
ward.Reach behind door handle 1 from below, pull
it outward to the pressure point and hold it
there.
If the door handle is extended:
Pull door handle 1 outward to the pressure
point and hold it there.Insert the mechanical key into the lock cylin-
der.Turn the mechanical key counter-clockwise to
position G.Forcefully pull door handle 1 outward past
the pressure point.Turn the mechanical key back to its starting
position.Remove the mechanical key and release the door handle.92Opening and closing

Locking the doorsInsert a suitable object, e.g. the mechanicalkey, into opening 1 on the door lock.To lock the le"s-hand side of the vehicle: turn
the mechanical key clockwise as far as it will go.To lock the right-hand side of the vehicle: turn
the mechanical key counter-clockwise as far
as it will go.
If the locked door is then closed, it can no longer be opened from the outside.
Trunk
Opening the trunk lid
&DANGER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the trunk
lid is open when the engine is running, espe-
cially if the vehicle is in motion.
Always switch o"M the engine before
opening the trunk lid.Never drive with the trunk lid open.*NOTE Damage to the trunk lid by obsta-
cles above the vehicle
The trunk lid swings upwards when it is
opened.
Therefore, make sure that there is su"P-
cient clearance above the trunk lid.Pull the trunk lid handle.Vehicles with HANDS-FREE ACCESS: make a
kicking movement with your foot below the
bumper (  page 97).Opening and closing93

Vehicles with trunk lid convenience closingPull remote operating switch 1 until the
trunk lid opens.
or
Press and hold the - button on the key.If the trunk lid is stopped in an intermediate
position, pull it upwards. Release it as soon as
it begins to open.With the trunk lid opening height restriction
activated, manually pull the stopped trunk lid
upwards.
If an obstacle obstructs the trunk lid during the
automatic opening process, blockage detection
will stop the trunk lid. The automatic blockage
detection function is only an aid and is not a sub-
stitute for your attentiveness.
Closing the trunk lid
&WARNING Risk of injury from unsecured
items in the vehicle
If objects, luggage or loads are not secured or
not secured su"Pciently, 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
they cannot be thrown around.Before the journey, secure objects, lug-
gage or loads against slipping or tipping
over.Observe the notes on loading the vehicle.
Notes on closing the trunk lid: your vehicle is
equipped with automatic SmartKey recognition. If
a SmartKey belonging to the vehicle is detected in
the vehicle, the trunk lid will not be locked and will pop open again.
Note that the trunk lid will not be locked if the fol- lowing situation occurs:
= You have locked the vehicle and close the
trunk lid while a SmartKey belonging to the vehicle is inside the vehicle.
and
= A second SmartKey belonging to the vehicle is
not detected outside the vehicle.
Automatic SmartKey recognition is only an aid and is not a substitute for your attentiveness.
Before locking, ensure that at least one
SmartKey belonging to the vehicle is outside the vehicle.94Opening and closing

To close the trunk lid: pull the trunk lid down-
wards using the handle recess and push it
closed.\bVehicles with trunk lid convenience closing: if
you lightly push the trunk lid closed, the
power closing function will automatically pull
the trunk lid into the lock.
Vehicles with trunk lid convenience closing
&WARNING Risk of becoming trapped dur-
ing automatic closing of the trunk lid
Parts of the body could become trapped.
There may be people in the closing area.
Make sure that nobody is in the vicinity of the closing area.Use one of the following options to stop
the closing process:
= Press the - button on the Smart-
Key.
= Press or pull the remote operating
switch on the driver\bs door.
= Press the closing or locking button
on the trunk lid.= Pull the trunk lid handle.
Vehicles with HANDS-FREE ACCESS: it is also
possible to stop the closing process by making a
kicking movement below the rear bumper.
Pull the trunk lid handle. Release it as soon as
it begins to close.If the trunk lid is stopped in an intermediate position, push it downwards.
The trunk lid will continue to close.Push remote operating switch 1 until the
trunk lid is fully closed.Opening and closing95

Press closing button 1 on the trunk lid.
Vehicles with KEYLESS-GO
Press locking button 2 on the trunk lid.
If a SmartKey is detected outside the vehicle,
the trunk lid will close and the vehicle will be
locked.With the trunk lid completely open, press and hold the - button on the SmartKey. TheSmartKey must be in the vicinity of the vehi-
cle.
Vehicles with HANDS-FREE ACCESS
With the trunk lid completely open, make a kicking movement with your foot below the
bumper (  page 97).
Trunk lid automatic reversing function
The trunk lid is equipped with automatic blockage
detection with a reversing function. If an obstacle
obstructs the trunk 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 parts are in the closing area.&WARNING Risk of becoming trapped
despite reversing function
The reversing function will not react:
= to so"s, light and thin objects, e.g. "Nngers
= towards the end of the closing procedure
In these situations in particular, the reversing
function cannot prevent someone being trap-
ped.Ensure that no body parts are in the closing area.If someone is trapped, use one of the fol-
lowing options:
= Press the - button on the Smart-
Key.
= Press the remote operating switch on
the driver\bs door.
= Press the closing or locking button
on the trunk lid.
= Pull the trunk lid handle.96Opening and closing

HANDS-FREE ACCESS function
With HANDS-FREE ACCESS you can open, closeor interrupt trunk lid movement by performing a
kicking movement under the rear bumper.
The kicking motion will trigger the opening or
closing process alternately.
Observe the notes when opening (  page 93)
and closing (  page 94) the trunk lid.
\bA warning tone will sound while the trunk lid is
opening or closing.&WARNING Risk of burns caused by a hot
exhaust system
The vehicle exhaust system can become very hot. If you use HANDS-FREE ACCESS, you
could burn yourself by touching the exhaust
system.
Always ensure that you only make a kick-
ing movement within the detection range
of the sensors.*NOTE Damage to the vehicle caused by
unintentionally opening the trunk lid or a
door
= When using an automatic car wash
= When using a high pressure cleaner
Deactivate the function of the SmartKey
in these situations.
or
Make sure that the SmartKey is at a min-
imum distance of 10 "s (3 m) (powerwasher) or 20 "s (6 m) (automatic car
wash) away from the vehicle.
When making the kicking movement, make sure
that you are standing "Nrmly on the ground. You
could otherwise lose your balance, e.g. on ice.
Make sure of the following:
= The key is behind the vehicle.
= Stand at least 12 in (30 cm) away from the
vehicle while performing the kicking move-
ment.
= 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.
Opening and closing97

1Detection range of the sensors
If several consecutive kicking movements are not
successful, wait 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.
The trunk lid could be opened or closed uninten- tionally, in the following situations:
= A person\bs 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 trunk sill down into the detection range of
the sensors is used.
= The protective mat is not secured correctly.
Deactivate the function of the key (  page 84) or
do not carry the key about your person in such situations.Switching separate trunk locking on and o"M
Multimedia system:
4 © 5
Settings 5
Vehicle
5 Locking Function
Switching separate trunk locking on
Select Block Trunk Access .Create a PIN.Con"Nrm the PIN with OK.Enter the PIN again and con"Nrm it.
The trunk will remain locked if you unlock the
vehicle centrally.\bIf an accident has been detected, the trunk will unlock even if separate locking isswitched on.
Switching separate trunk locking o"M
Select Block Trunk Access .Enter the PIN.
If the PIN is correct, separate trunk locking
will be switched o"M and the PIN deleted.98Opening and closing