key MERCEDES-BENZ S CLASS 2017 Owner's Guide

X
To deactivate: open the glove box.X
Push the switch to position C .
If the vehicle is unlocked centrally, the trunk
will also be unlocked.
Unlocking the trunk using the
mechanical key
General notes Use the mechanical key if the trunk lid can no
longer be unlocked: R
using the SmartKey R
using HANDS-FREE ACCESS R
using the remote operating switch in the door
control panel
! The trunk lid swings upwards when opened.
Therefore, make sure that there is sufficient
clearance above the trunk lid.
The opening dimensions of the trunk lid can be
found in the "Vehicle data" section
( Y
page 376).
Unlocking X
Insert the mechanical key into the trunk lid
lock as far as it will go.
X
Turn the mechanical key from position G
counter-clockwise as far as it will go to posi-
tion H .
The trunk lid is released. X
Turn the mechanical key back to position G
and remove it. Unlocking the trunk from the inside
using the emergency release button
You can unlock the trunk lid from the inside
using emergency release button C .X
Press emergency release button C briefly.
The trunk lid unlocks and opens.
The trunk lid can be unlocked using emergency
release button C when stationary or when the
vehicle is in motion.
Emergency release button C does not unlock
the trunk lid if the battery is disconnected or
discharged.
Emergency release button C flashes:R
for 30 minutes after the trunk lid is opened R
for 60 minutes after the trunk lid is closed
Side windows
Important safety notes
G WARNING
While opening the side windows, body parts
could become trapped between the side win-
dow and the door frame as the side window
moves. There is a risk of injury.
Make sure that nobody touches the side win-
dow during the opening procedure. If some-
body becomes trapped, release the switch or
pull the switch to close the side window again.
G WARNING
While closing the side windows, body parts in
the closing area could become trapped. There
is a risk of injury.90
Side windows
Opening and closing

When closing make sure that no parts of the
body are in the closing area. If somebody
becomes trapped, release the switch or press
the switch to open the side window again.
G WARNING
If children operate the side windows they
could become trapped, particularly if they are
left unsupervised. There is a risk of injury.
Activate the override feature for the rear side
windows. When leaving the vehicle, always
take the SmartKey with you and lock the vehi-
cle. Never leave children unsupervised in the
vehicle.
Side window reversing feature The side windows are equipped with an auto-
matic reversing feature. If a solid object blocks
or restricts a side window from traveling
upwards during the automatic closing process,
the side window opens again automatically. Dur-
ing the manual closing process, the side window
only opens again automatically after the corre-
sponding switch is released.
The automatic reversing feature is only an aid
and does not relieve you of the responsibility of
paying attention when closing a side window.
G WARNING
The reversing feature does not react: R
to soft, light and thin objects, e.g. small fin-
gers R
while resetting
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure. If
someone becomes trapped, press the switch
to open the side window again. Opening and closing the side win-
dows The switches for all side windows are located on
the driver's door. There is also a switch on each
door for the corresponding side window.
The switches on the driver's door take prece-
dence.
C
Front left D
Front right

Before opening or closing the side windows, a
check is carried out to see whether a valid
SmartKey is in the vehicle. The check is carried
out if you use the start/stop button instead of a
SmartKey in the ignition and you press or pull a
button while the engine is switched off. This is
carried out by means of a brief radio connection
between the vehicle and the SmartKey.
Information on opening and closing the roller
sunblinds on the rear side windows
( Y
page 293).
Convenience opening
General notes If the SmartKey is in close proximity to the vehi-
cle, the convenience opening function is availa-
ble.
You can ventilate the vehicle before you start
driving.
To do this, the SmartKey is used to carry out the
following functions simultaneously: R
unlock the vehicle R
open the side windows R
open the panorama roof with power tilt/slid-
ing panel and the roller sunblinds R
switch on the seat ventilation for the driver's
seat
The "convenience opening" feature is also avail-
able when the vehicle is unlocked.
Convenience opening X
Press and hold the 6 button until the side
windows and the panorama sunroof are in the
desired position.
If the roller sunblinds of the panorama roof
with power tilt/sliding panel are closed, the
roller sunblinds are opened first. X
Keep the 6 button pressed until the pan-
orama roof with power tilt/sliding panel is in
the desired position. X
To interrupt convenience opening: release
the 6 button. Convenience closing feature
Important safety notes
G WARNING
When the convenience closing feature is oper-
ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. Make sure that no body parts are in
close proximity during the closing procedure.
When you lock the vehicle, you can simultane-
ously: R
close the side windows R
close the panorama roof with power tilt/slid-
ing panel
On vehicles with a panorama roof with power
tilt/sliding panel, you can then close the roller
sunblinds.
i Notes on the automatic reversing feature
for: R
the side window ( Y
page 91)R
the panorama roof with power tilt/sliding
panel ( Y
page 95) R
the roller sunblinds ( Y
page 96)
Using the SmartKey X
Press and hold the 7 button until the side
windows and the panorama roof with power
tilt/sliding panel are fully closed. X
Make sure that all the side windows and the
panorama roof with power tilt/sliding panel
are closed. X
On vehicles with a panorama roof with
power tilt/sliding panel: press and hold the
7 button again until the roller sunblinds of
the panorama roof with power tilt/sliding
panel close. X
To interrupt convenience closing: release
the 7 button.
Using KEYLESS-GO
The SmartKey must be outside the vehicle. All
the doors must be closed.92
Side windows
Opening and closing

X
Touch recessed sensor surface C on the
door handle until the side windows and the
panorama roof with power tilt/sliding panel
are fully closed.
i Make sure you only touch recessed sensor
surface C .X
Make sure that all the side windows and the
panorama roof with power tilt/sliding panel
are closed. X
Vehicles with a panorama roof with
power tilt/sliding panel: touch recessed
sensor surface C on the door handle again
until the roller sunblinds of the panorama roof
with power tilt/sliding panel close. X
To interrupt convenience closing: release
recessed sensor surface C on the door han-
dle. Resetting the side windows If a side window can no longer be closed fully,
you must reset it. X
Close all the doors. X
Turn the SmartKey to position 1 or 2 in the
ignition lock. X
Pull the corresponding switch on the door
control panel until the side window is com-
pletely closed ( Y
page 91). X
Hold the switch for an additional second.
If the side window opens again slightly: X
Immediately pull the corresponding switch on
the door control panel until the side window is
completely closed ( Y
page 91).X
Hold the switch for an additional second. X
If the respective side window remains closed
after the button is released, then it has been
set correctly. If this is not the case, repeat the
steps above.
Problems with the side windows
G WARNING
If you close a side window again immediately after it has been blocked or reset, the side window
closes with increased or maximum force. The reversing feature is then not active. Parts of the
body could be trapped in the closing area in the process. This poses an increased risk of injury or
even fatal injury.
Make sure that no parts of the body are in the closing area. To stop the closing process, release
the switch or push the switch again to reopen the side window. Side windows 93
Opening and closing Z

Problem
Possible causes/consequences and P Solutions
A side window cannot be
closed because it is
blocked by objects, e.g.
leaves in the window
guide. X
Remove the objects. X
Close the side window.
A side window cannot be
closed and you cannot
see the cause. If a side window is obstructed during closing and reopens again
slightly: X
Immediately after the window blocks, pull the corresponding switch
again until the side window has closed.
The side window is closed with increased force.
If a side window is obstructed again during closing and reopens again
slightly: X
Immediately after the window blocks, pull the corresponding switch
again until the side window has closed.
The sliding sunroof is closed without the automatic reversing fea-
ture.
Panorama roof with power tilt/sliding
panel
Important safety notes In the following section, the term "sliding sun-
roof" refers to the panorama roof with power
tilt/sliding panel.
G WARNING
While opening and closing the sliding sunroof,
body parts in close proximity could become
trapped. There is a risk of injury.
Make sure that no body parts are in close
proximity during the opening and closing pro-
cedures.
If somebody becomes trapped: R
release the switch immediately, or R
during automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop-
ped.
G WARNING
If children operate the sliding sunroof they
could become trapped, particularly if they are
left unsupervised. There is a risk of injury. When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
G WARNING
At high speeds the raised sliding sunroof auto-
matically lowers slightly at the rear. This could
trap you or other persons. There is a risk of
injury. Make sure that nobody reaches into
the sweep of the sliding sunroof whilst the
vehicle is in motion.
If somebody becomes trapped, immediately
push the sliding sunroof switch up or pull it
back. The sliding sunroof raises at the rear.
! Only open the sliding sunroof if it is free of
snow and ice. Otherwise, malfunctions may
occur.
Do not allow anything to protrude from the
sliding sunroof. Otherwise, the seals could be
damaged.
! The weather can change abruptly. It could
start to rain or snow. Make sure that the slid-
ing sunroof is closed when you leave the vehi-
cle. The vehicle electronics can be damaged if
water enters the vehicle interior.
! When the sliding sunroof is open, water can
get into the vehicle and cause damage. The94
Panorama roof with power tilt/sliding panel
Opening and closing

and R
the Start/Stop button is used instead of the
SmartKey in the ignition lock
and R
the engine is not running
This is carried out by means of a brief radio con-
nection between the vehicle and the SmartKey.
Rain-closing feature The raised sliding sunroof automatically lowers
at the rear when driving if it starts to rain. The
sliding sunroof is lowered depending on: R
the road speed and R
the intensity of the rain
You can manually cancel the automatic closing
procedure. Press or pull the W switch in any
direction.
To raise the sliding sunroof again, press the
W switch in direction C . The rain-closing
feature remains activated.
Operating the roller sunblinds for the
sliding sunroof
Important safety notes
G WARNING
Parts of the body could become trapped
between the roller sunblind and frame or slid-
ing sunroof during automatic opening or clos-
ing. There is a risk of injury.
When opening or closing, make sure that no
body parts are in the sweep of the roller sun-
blind.
If somebody becomes trapped: R
release the switch immediately, or R
during automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop-
ped.
The roller sunblinds shield the vehicle interior
from sunlight. The front roller sunblind can only
be opened and closed when the sliding sunroof
is closed. Roller sunblind reversing feature The roller sunblinds are equipped with an auto-
matic reversing feature. If a solid object blocks
or restricts a roller sunblind during the closing
process, the roller sunblind opens again auto-
matically. The automatic reversing feature is
only an aid and is not a substitute for your atten-
tion when closing the roller sunblinds.
G WARNING
The reversing feature does not react in par-
ticular to soft, light and thin objects, e.g. small
fingers. This means that the reversing feature
cannot prevent someone being trapped in
these situations. There is a risk of injury.
When closing the roller sunblind, make sure
that no body parts are in the sweep area.
If somebody becomes trapped: R
release the switch immediately, or R
press the switch in any direction during the
automatic closing process
The closing process is stopped.
Opening and closing the front roller sun-
blind
The front roller sunblind can only be closed
when the sliding sunroof is closed. X
Turn the SmartKey to position 1 or 2 in the
ignition lock. X
Press the W switch in direction C .
The front roller sunblind opens, then the slid-
ing roof is raised. X
Pull the W switch in direction D .
The front roller sunblind opens. X
Pull the W switch in direction

The front roller sunblind closes if the sliding
sunroof is closed.
If you press or pull the W switch beyond the
point of resistance, automatic operation is star-
ted in the corresponding direction. You can stop
automatic operation by pressing or pulling
again.
Opening and closing the rear roller sun-
blind Operating from the front
Vehicles without MAGIC SKY CONTROL: you
can operate the rear roller sunblind from the
front. X
To open or close: press button C .
The rear roller sunblind opens or closes fully. X
To stop: press button C again.
You must first open or close the rear roller sun-
blind fully before you can move it in the other
direction.
Operating from the rear compartment
X
To open/close manually: press or pull
switch C to the point of resistance and hold it until the rear roller sunblind has reached the
desired position. X
To open/close fully: press or pull switch C
beyond the point of resistance and release it.
If you press switch C again when the rear roller
sunblind is fully opened, the degree of transpar-
ency of the rear MAGIC SKY CONTROL element
changes. If you pull switch C again when the
rear roller sunblind is fully closed, the degree of
transparency changes only when the roller sun-
blind is opened ( Y
page 97).
If the rear roller sunblind closes when the rear
MAGIC SKY CONTROL element is not tinted, this
tints automatically.
MAGIC SKY CONTROL
General notes MAGIC SKY CONTROL is a panorama roof, the
transparency of which can be changed by apply-
ing electrical voltage.
MAGIC SKY CONTROL can be switched between
darkened and transparent states.
MAGIC SKY CONTROL darkens automatically
after a short period when you turn the SmartKey
to position 0 or remove the SmartKey.
Risk of electric shock
G DANGER
MAGIC SKY CONTROL operates using high
voltage. If the headliner is damaged or
removed, electrical components will be
exposed. If you touch these components, you
could get an electric shock. There is a risk of
fatal injury. R
Never remove the headliner. R
If the headliner is damaged, never touch the
electrical components behind it. R
Always have work on the MAGIC SKY CON-
TROL carried out at a qualified specialist
workshop.
The high-voltage components of MAGIC SKY
CONTROL are protected behind the headliner.
These are in the hidden portion of the movable
roof element of the panorama roof with power
tilt/sliding panel and above the left rear door.Panorama roof with power tilt/sliding panel 97
Opening and closing Z

The MAGIC SKY CONTROL voltage transformer
is stamped with a high-voltage symbol, warning
you about the high voltage. The electric cables
of the high-voltage section are color orange.
Operating MAGIC SKY CONTROL from
the front X
Turn the SmartKey to position 1 or 2 in the
ignition lock.
MAGIC SKY CONTROL switches to the status
it was set to before the engine was switched
off. X
To change the degree of transparency:
press button C .
If the rear MAGIC SKY CONTROL element is in a
different state than the front element, the
degree of transparency will change only in the
front element. Both elements will then be in the
same state and any further changes will again
occur synchronously.
At sub-zero temperatures, the change is slower
and uneven. The entire process may take some
time.
Operating the rear MAGIC SKY CON-
TROL element from the rear X
To change the degree of transparency
when the roller sunblind is fully opened:
press switch C . X
To change the degree of transparency
when the roller sunblind is fully closed:
pull switch C .
The degree of transparency will change only
after the roller sunblind is opened.
If the rear roller sunblind closes when the rear
MAGIC SKY CONTROL element is not tinted, this
tints automatically.
Resetting the sliding sunroof and the
roller sunblind
Resetting the sliding sunroof or the
front roller sunblinds
Reset the sliding sunroof or the front roller sun-
blind if the sliding sunroof or the front roller
sunblind does not move smoothly. X
Turn the SmartKey to position 1 or 2 in the
ignition lock. X
Pull the W switch to the point of resistance
in the direction of arrow C until the sliding
sunroof is fully closed. X
Keep the W switch pulled for an additional
second. X
Pull the W switch in the direction of
arrow C until the front roller sunblind is
closed. X
Keep the W switch pulled for an additional
second. X
Make sure that the sliding sunroof and the
front roller sunblind can be fully opened
again. X
If this is not the case, repeat the steps above
again.98
Panorama roof with power tilt/sliding panel
Opening and closing

Resetting the rear sunblind X
Turn the SmartKey to position 1 or 2 in the
ignition lock. X
Pull switch C repeatedly until the rear roller
sunblind is fully closed. X
Keep switch C pulled for an additional sec-
ond. X
Make sure that the rear roller sunblind can be
opened fully again. X
If this is not the case, repeat the steps above
again.
Problems with the sliding sunroof
G WARNING
If you close the sliding sunroof again immediately after it has been blocked or reset, the sliding
sunroof closes with increased or maximum force. The reversing feature is then not active. Parts
of the body could be trapped in the closing area in the process. This poses an increased risk of
injury or even fatal injury.
Make sure that no parts of the body are in the closing area.
If somebody becomes trapped: R
release the switch immediately, or R
press the switch in any direction during the automatic closing process
The closing process is stopped.
! If the sliding sunroof still cannot be opened or closed as a result of a malfunction, contact a
qualified specialist workshop.
Problem
Possible causes/consequences and P Solutions
The sliding sunroof can-
not be closed and you
cannot see the cause. If the sliding sunroof is obstructed during closing and reopens again
slightly: X
Immediately after it blocks, pull the W switch down again to the
point of resistance until the sliding sunroof is closed.
The sliding sunroof is closed with increased force.
If the sliding sunroof is obstructed again during closing and then
reopens slightly: X
Immediately after it blocks, pull the W switch down again to the
point of resistance until the sliding sunroof is closed.
The sliding sunroof is closed without the automatic reversing fea-
ture.Panorama roof with power tilt/sliding panel 99
Opening and closing Z

! Do not move the front-passenger seat fully
forwards if there are objects in the parcel net
in the front-passenger footwell. The objects
could otherwise be damaged.
Adjusting the front-passenger seat
The power supply or the ignition must be
switched on so that the front-passenger seat
can be selected ( Y
page 146).X
To select the front-passenger seat: press
button C repeatedly until the indicator lamp
in the button lights up.
When the indicator lamp in button C lights up,
for the front-passenger seat you can adjust: R
adjust the seat ( Y
page 101)R
seat heating ( Y
page 112)R
seat ventilation ( Y
page 113)R
the memory function to call up or save set-
tings ( Y
page 120).
Adjusting the front-passenger seat
from the rear
Important safety notes
G WARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The seats can still be adjusted when the power
supply is switched off. G WARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Observe the safety notes on "Air bags"
( Y
page 48) and "Children in the vehicle"
( Y
page 59).
G WARNING
The front-air bags for could also injure the
vehicle occupants in the front If the front
seats are positioned too close to the dash-
board or steering wheel. This poses an
increased risk of injury or even fatal injury.
Always adjust the front seats so that they are
as far from the front air bags as possible. Also
observe the notes on the correct adjustment
of the seats.
! Do not move the front-passenger seat fully
forwards if there are objects in the parcel net
in the front-passenger footwell. The objects
could otherwise be damaged.
i You can use the rear-compartment override
button to disable the setting of the front-
passenger seat from the rear ( Y
page 65).
Adjusting the rear seat
C
Selects rear-compartment seat
D
Head restraint height