light MERCEDES-BENZ CLS 2014 Service Manual

Neutral position.
To unlock
XTurn the mechanical key counter-clockwise
from position
as far as it willgoto
position.
The trunk is unlocked.
XTurn the mechanical key back to position

and remove it.
XInsert the mechanical key into the
SmartKey.
Trunk emergencyrelease
You can open thetrunk lid from inside the
vehicle with theemergency releasebutton.
XPressemergency releasebuttonbriefly.
The trunk lid unlocksand opens.
The trunk lid can be unlocked and opened
with thetrunk lid emergency releasewhen
thevehicle is stationaryorwhile driving.
The trunk lid emergency releasedoes not
open thetrunk lid if thebattery is
disconnectedordischarged.
Trunklid emergency release light:
Remergency release buttonflashes for
30 minutes after the trunk lid is opened
Remergency release buttonflashes for
60 minutes after the trunk lid is closed
Side windows
Important safety notes
GWARNING
While opening the side windows,body parts
could become trapped between the side
window and the door frameasthe side
window moves. There isarisk of injury.
Make sure that nobody touches the side
window duringthe opening procedure. If
somebody becomes trapped, release the
switchorpull the switchtoclosethe side
window again.
GWARNING
While opening the side windows,body parts
in the closing area could become trapped.
There isarisk of injury.
Make sure that no body partsare in close
proximityduringthe closing procedure. If
somebody becomes trapped, release the
switchorpress the switchtoopen the side
window again.
GWARNING
If children operatethe side windows they
could become trapped, particularly if theyare
left unsupervised. There isarisk of injury.
Activate the override feature for the rear side
windows.When leaving the vehicle, always
take the SmartKey with you and lock the
vehicle. Never leave children unsupervised in
the vehicle.
Side window reversing feature
The side windows are equipped with an
automatic reversing feature. Ifasolid object
88Side windows
Opening and closing

blocksorrestrictsaside window during the
closingprocess, the side window opens again
automatically. However,the automatic
reversing feature is only an aid and does not
relieve you of the responsibility of paying
attention when closingaside window.
GWARNING
The reversing feature does not react:
Rto soft,light and thin objects, e.g. small
fingers
Rover the last4mmofthe closing movement
Rduring resetting
Rwhen closing the side window again
manually immediately after automatic
reversing
This means that the reversing feature cannot
prevent someone being trapped in these
situations. There isarisk 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
windows
The switches for all side windows are located
on the driver's door. There is alsoaswitch on
each door for the corresponding side window.
The switches on the driver's door take
precedence.
Front left
Front right
$Rear right
!Rear left
XTurn the SmartKey to position1or2in the
ignition lock.
XTo open:press the corresponding switch.
XTo close:pull the corresponding switch.
iIf you press the switch beyond the point
of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by operating the
switch again.
iYou can continue to operate the side
windows after you switch off the engine or
remove the SmartKey. This function is
available for up to five minutes or until the
driver's or front-passenger door is opened.
iWhen the override feature for the side
windows is activated (Ypage 65), the side
windows cannot be operated from the rear.
Convenienceopening
General notes
You can ventilate the vehicle before you start
driving. To do this, the SmartKey is used to
carry out the following functions
simultaneously:
Runlock the vehicle
Ropen the side windows
Ropen the sliding sunroof
Rswitch on the seat ventilation for the
driver's seat
iThe convenience opening feature can
only be operated using the SmartKey. The
SmartKey must be close to the driver's
door handle.
Side windows89
Opening and closing
Z

Convenience opening
XPointthe tip of the SmartKey at the driver's
door handle.
XPress and hold thebutton until the
side windows and the sliding sunroof are in
the desired position.
XTo interrupt convenienceopening:
release thebutton.
Convenienceclosing feature
Important safety notes
Information on the side window reversing
feature (Ypage 88).
GWARNING
The reversing feature does not react:
Rto soft, light and thin objects, e.g. small
fingers
Rover the last4mmofthe closing movement
Rduring resetting
Rwhen closing the sliding sunroof again
manually immediately after automatic
reversing
This means that the reversing feature cannot
prevent someone being trapped in these
situations. There isarisk of injury.
Make sure that no body parts are in close
proximity during the closing procedure.
If somebody becomes trapped:
Rrelease the switch immediately, or
Rduring automatic operation, push the
switch briefly in any direction
The closing process is stopped.
GWARNING
When the convenience closing feature is
operating, parts of the body could become
trapped in the closing area of the side window
and the sliding sunroof. There isarisk of
injury.
Observe the complete closing procedure
when the convenience closing feature is
operating. Make sure that no body parts are
in close proximity during the closing
procedure.
Proceed as follows if someone is trapped:
With the SmartKey:
Rrelease thebutton.
Rpress and hold thebutton until the
side windows and the sliding sunroof or the
panorama roof with power tilt/sliding
panel open again.
Using KEYLESS-GO:
Rrelease the sensor surface on the door
handle.
Rpull the door handle immediately and hold
it.
The side windows and the sliding sunroof
or the panorama roof with power tilt/
sliding panel open.
General notes
When you lock the vehicle, you can
simultaneously:
Rclose the side windows
Rclose the sliding sunroof
Using the SmartKey
The SmartKey must be close to the driver's
door handle.
XPoint the tip of the SmartKey at the driver's
door handle.
XPress and hold thebutton until the
side windows and the sliding sunroof are
fully closed.
XMake sure that all the side windows and the
sliding sunroof are closed.
XTo interrupt convenienceclosing:
release thebutton.
Using KEYLESS-GO
The KEYLESS-GO key must be outside the
vehicle. All the doors must be closed.
90Side windows
Opening and closing

XTouch recessed sensor surfaceon the
door handle until the side windows and the
sliding sunroof are fully closed.
iMake sure you only touch recessed
sensor surface.
XMake sure that all the side windows and the
sliding sunroof are closed.
XTo interrupt convenience closing:
release recessed sensor surfaceon the
door handle.
Resetting the side windows
Ifaside window can no longer be closed fully,
you must reset it.
XClose all the doors.
XTurn the SmartKey to position1or2in the
ignition lock.
XPull the corresponding switch on the door
control panel until the side window is
completely closed (Ypage 89).
XHold the switch for an additional second.
If the side window opens again slightly:
XImmediately pull the corresponding switch
on the door control panel until the side
window is completely closed (Ypage 89).
XHold the switch for an additional second.
XIf the corresponding side window remains
closed after the button has been released,
the side window has been reset correctly.
If this is not the case, repeat the steps
above again.
Side windows91
Opening and closing
Z

Problems with the side windows
GWARNING
If you closeaside 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.
ProblemPossible causes/consequences andSolutions
Aside window cannot
be closed because it is
blocked by objects, e.g.
leaves in the window
guide.
XRemove the objects.
XClose the side window.
Aside window cannot
be closed and you
cannot see the cause.
Ifaside window is obstructed duringclosing and reopensagain
slightly:
XImmediately after the window blocks, pull the corresponding
switchagain until the side window has closed.
The side window is closed with increased force.
Ifaside window is obstructed again duringclosing and reopens
again slightly:
XImmediately after the window blocks, pull the corresponding
switchagain until the side window has closed.
The side window is closed without the anti-entrapmentfeature.
Sliding sunroof
Important safetynotes
GWARNING
While opening and closing the sliding sunroof,
body parts in close proximity could become
trapped. There isarisk of injury.
Make sure that no body parts are in close
proximity during the opening and closing
procedures.
If somebody becomes trapped:
Rrelease the switch immediately, or
Rduring automatic operation,push the
switch briefly in any direction
The openingorclosing procedure will be
stopped.
GWARNING
If children operate the sliding sunroof they
could become trapped, particularly if they are
left unsupervised. There isarisk of injury.
When leaving the vehicle, alwaystake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
!Only open the sliding sunroof if it is free
of snow and ice. Otherwise, malfunctions
may occur.
92Sliding sunroof
Opening and closing

Do not allowanything to protrude fromthe
sliding sunroof. Otherwise, the seals could
be damaged.
!The weather can change abruptly. It could
start to rain or snow. Make sure that the
sliding sunroof is closed when you leave the
vehicle. The vehicle electronicscan be
damaged if water enters the vehicle
interior.
iResonance noises can occur in addition
to the usualairflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior.
Change the position of the sliding sunroof
or openaside window slightly to reduce or
eliminate these noises.
Sliding sunroof reversing feature
The sliding sunroof is equipped with an
automatic reversing feature. Ifasolid object
blocks or restrictsthe sliding sunroof during
the closing process, the sliding sunroof opens
again automatically.However, the automatic
reversing feature is only an aid and does not
relieve you of the responsibility of paying
attention when closing the sliding sunroof.
GWARNING
The reversing feature does not react:
Rto soft, light and thin objects, e.g. small
fingers
Rover the last4mmofthe closing movement
Rduring resetting
Rwhen closing the sliding sunroof again
manually immediately after automatic
reversing
This means that the reversing feature cannot
prevent someone being trapped in these
situations. There isarisk of injury.
Make sure that no body parts are in close
proximity during the closing procedure.
If somebody becomes trapped:
Rrelease the switch immediately, or
Rduring automatic operation, push the
switch briefly in any direction
The closing process is stopped.
Operating the sliding sunroof
Opening and closing
Overhead control panel
To raise
To open
$To close/lower
XTurn the SmartKey to position1or2in the
ignition lock.
XPress or pull theswitch in the
corresponding direction.
iIf you press theswitch beyond the
point of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by operating the
switch again.
iThe automatic opening and raising
feature is available only when the sliding
sunroof is closed.
The sun protection cover automatically opens
along with the sliding sunroof. You can open
or close the sun protection cover manually
when the sliding sunroof is raised or closed.
iYou can continue to operate the sliding
sunroof after switching off the engine or
Sliding sunroof93
Opening and closing
Z

Problems with the sliding sunroof
GWARNING
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:
Rrelease the switch immediately, or
Rduring automatic operation, push the switch briefly in any direction
The closing process is stopped.
!If the sliding sunroof still cannot be opened or closed asaresult ofamalfunction,contact
aqualified specialist workshop.
ProblemPossible causes/consequences andSolutions
The sliding sunroof
cannot be closed and
you cannot see the
cause.
If the sliding sunroof is obstructed during closing and reopens
again slightly:
XImmediately after the sliding sunroof blocks, pull the
switch in the overhead control panel down to the point of
resistance and hold it 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:
XImmediately after the sliding sunroof blocks, pull the
switch in the overhead control panel down to the point of
resistance and hold it until the sliding sunroof is closed.
The sliding sunroof is closed without the anti-entrapment
feature.
Sliding sunroof95
Opening and closing
Z

Useful information
iThis Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please notethat your vehicle may
not be equipped with all features
described. This also applies to safety-
related systemsand functions.
iRead the information on qualified
specialist workshops: (Ypage 26).
Correct driver's seat position
GWARNING
You could lose controlofyour vehicle if you
do the following while driving:
Radjust the driver'sseat, head restraint,
steering wheel or mirrors
Rfastenthe seat belt
There isarisk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before startingthe engine.
XObserve the safety guidelines on seat
adjustment (Ypage 99).
XMake sure that seat$is adjusted
properly.
Electrical seat adjustment (Ypage 100)
When adjusting the seat, make sure that:
Ryou are as far away from the driver's air bag
as possible.
Ryou are sitting inanormal upright position.
Ryou can fasten the seat belt properly.
Ryou have moved the backrest to an almost
vertical position.
Ryou have set the seat cushion angle so that
your thighs are gently supported.
Ryou can depress the pedals properly.
XCheck whether the head restraint is
adjusted properly.
When doing so, make sure that you have
adjusted the head restraint so that the back
of your head is supported at eye level by
the center of the head restraint.
XObserve the safety guidelines on steering
wheel adjustment (Ypage 106).
XMake sure that steering wheelis
adjusted properly.
Adjustingthe steering wheel electrically
(Ypage 106)
When adjusting the steering wheel, make
sure that:
Ryou can hold the steering wheel with your
arms slightly bent.
Ryou can move your legs freely.
Ryou can see all the displays in the
instrumentcluster clearly.
XObserve the safetyguidelinesfor seat belts
(Ypage 55).
XCheck whether you have fastened seat
beltproperly (Ypage 56).
98Correct driver'sseat position
Seats, steering wheel and mirrors

properly secured in an appropriately sized
child restraint system or booster seat
recommended for the size and weight of the
child. For additional information,see the
"Children in the vehicle" section.
Achild's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint.
!To avoid damage to the seats and the seat
heating, observe the following information:
Rkeep liquids from spilling on the seats. If
liquidisspilled on the seats, dry them as
soon as possible.
Rif the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
Rclean the seat covers as recommended;
see "Interior care".
Rdo not transport heavy loads on the
seats. Do not place sharp objectsonthe
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
Rwhen the seat heating is in operation, do
not cover the seats with insulating
materials, e.g. blankets, coats, bags,
seat covers, child seats or booster seats.
!Make sure that there are no objectsinthe
footwell or behind the seats when resetting
the seats. There isarisk that the seats
and/or the objectscould be damaged.
iThe head restraintsinthe front seats are
installed with the NECK-PRO system
(Ypage 53). For this reason, it is not
possible to remove the head restraints
from the front seats.
For more information,contactaqualified
specialist workshop.
iFurther related subjects:
Adjusting the seats
Head restraint height
Seat cushion angle
$Seat height
!Seat fore-and-aft adjustment
Backrest angle
iIf PRE-SAFE®is triggered, the front-
passenger seat will be moved toabetter
position if it was previously in an
unfavorable position.
iYou can store the seat settings using the
memory function (Ypage 112).
iVehicles with the through-loading
feature: if you fold downarear seat
backrest, the respective front seat is
moved forwards slightly in order to avoid
contact.
Adjusting the head restraints
Important safety notes
GWARNING
You could lose control of your vehicle if you
do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There isarisk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before startingthe engine.
100Seats
Seats, steering whee la nd mirrors

Adjusting theactive multicontour
seat
Overview
To adjust theseat cushion length
To switch thedynamic function on or off
$To adjust theside bolsters of theseat
backrest
!To switch themassage function on or off
To adjust thecontourofthebackrest to
increase/decreasesupport
%To adjust theheight/depthofthe
backrest contour
The active multicontour seat on thedriver's
side automatically adaptsthesidesofthe
backrest to your currentdriving style.You can
adjust the contour of the seat individuallyso
as to provide optimum support for your back
and sides.
Dynamic function
The dynamic function adjusts the air cushions
in the side bolsters of the seat backreststo
ensure ideal lateral support at all times. You
can choose between two levels.
XTo switch on:press buttononce or
twice until the desired level is set.
One or two indicator lamps in button
light up.
XTo switch off:press buttonrepeatedly
until all indicator lamps in buttongo out.
You can select the following levels:
Level1(one
indicator lamp)
Standard setting:
slightly increased
lateral support and
slow build-up of air
pressure in the side
bolsters of the seat
backrest.
Level2(two
indicator lamps)
Sport setting:
increased lateral
support and fast
build-up of pressure
in the side bolsters
of the seat backrest.
Massage function (PULSE)
The massage function helps you to prevent
muscle tension on long journeys. You can
choose between two levels.
XTo switch on:press button!once or
twice until the desired level is set.
One or two indicator lamps in button!
light up. The air cushions in the lumbar
region vibrate for approximately
20 minutes.
Adjusting the 4-way lumbar support
To raise the backrest contour
To soften the backrest contour
$To lower the backrest contour
!To harden the backrest contour
Seats103
Seats, steering wheel and mirrors
Z