lock MERCEDES-BENZ SL CLASS 2019 Service Manual

Problems with the side windows
GWARNING
If you close a side window again immediately after it has been blocked or reset, the side win-
dow 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 andPPSolutions
A side window cannotbe closed because it isblocked by objects, e.g.leaves in the windowguide.
XRemove the objects.
XClose the side window.
A side window cannotbe closed and you can-not see the cause.
If a side window is obstructed during closing and reopens againslightly:
XImmediately after the window blocks, pull the correspondingswitch 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 reopensagain slightly:
XImmediately after the window blocks, pull the correspondingswitch again until the side window has closed.The side window is closed without the automatic reversing fea-ture.
The side windows can-not be opened or closedusing the convenienceopening/closing fea-ture.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 77) and replace it if neces-sary (Ypage 77).
Roof
Important safety notes
GWARNING
If you do not fully open/close the soft top,
the soft-top hydraulics depressurize after a
short time. This causes the soft top to lower
unexpectedly and may cause you or others
to be trapped. There is a risk of injury.
Always open or close the soft top com-
pletely.
GWARNING
Closing the roof manually is a complicated
and technically demanding procedure, which
requires a lot of strength. You or others can
become trapped. There is a risk of injury.
Only have the soft top closed manually at a
qualified specialist workshop.
!Never sit on the rear compartment trim orstow heavy objects there. You will otherwisedamage the roof and rear compartment trimof the vehicle.
90Roof
Opening and closing

All of the side windows open.
XTo close all side windows, pull the switchunder the cover of the center console(Ypage 88).
Opening/closing using the SmartKey
Important safety notes
GWARNING
When opening or closing the roof, body
parts could be trapped by, for example, the
roof mechanism, trunk lid or side windows.
There is a risk of injury.
When raising or lowering the roof, make
sure that no body parts are in the vicinity of
moving components. If someone becomes
trapped, release the button.
Opening and closing
This function is only available on vehicles withKEYLESS-GO or with roof comfort operation.
XClose the trunk lid (Ypage 81).If the trunk has been correctly loaded, thetrunk partition is automatically closed.
XVehicles with comfort operation:pointthe tip of the SmartKey at the driver's doorhandle.
XVehicles with KEYLESS-GO:the SmartKeymust be within 6 ft (2 m) of the vehicle.
XTo open:press and hold the6button onthe SmartKey until the roof is fully opened.The roof and the rear side windows open.The front side windows close.
XTo interrupt the opening procedure:release the6button.
XTo open the front side windows:press the6button on the SmartKey again.
XTo close:press and hold the7buttonon the SmartKey until the roof is fullyclosed.The roof and the side windows close.
XTo interrupt the closing procedure:release the7button.
Locking the roof again
Important safety notes
GWARNING
If you do not fully open/close the soft top,
the soft-top hydraulics depressurize after a
short time. This causes the soft top to lower
unexpectedly and may cause you or others
to be trapped. There is a risk of injury.
Always open or close the soft top com-
pletely.
The roof is not locked if:
RtheYsymbol and theVario-Roof inVario-Roof inOperationOperationmessage appear in the multi-function display
RtheYsymbol and theOpen/CloseOpen/CloseVario-Roof CompletelyVario-Roof Completelymessage appearin the multifunction display and you hear awarning tone
Ryou hear a warning tone for up to ten sec-onds when pulling away or while driving
Locking
You can lock the roof again if it is not lockedfully.
XPull over and stop the vehicle safely as soonas possible, paying attention to road andtraffic conditions.
XEnsure that the SmartKey is in positionHin the ignition lock.
XPress the roof switch (Ypage 91).
Trunk partition
General notes
!To avoid damaging the roof or luggagewhen folding back the roof, you should:
Ronly load the trunk to below the trunk par-tition
Rnot place any objects on or in front of thetrunk partition
Rnot place any objects on the cover behindthe roll bars
Rnot allow the cargo to push the trunk par-tition upwards
92Roof
Opening and closing

!Make sure the trunk separator is com-pletely closed. Otherwise, the roof can beblocked when it is opened or closed.
The trunk partition can be used to cover lug-gage and loads in the trunk.
Opening and closing
Trunk partitionCcan be opened and closedusing buttonD, e.g. to check correct loading.
XTo open:press buttonD.
XTo close:press buttonD.If the trunk is loaded correctly, trunk parti-tionCis automatically closed to the fullextent.
When the trunk lid is opened, trunk parti-tionCopens automatically.
Removing and installing
XTo remove:close trunk partitionC(Ypage 93).
XTo disconnect the electric plug connector,press the release catch on connectorDand remove connectorD.
XUnhook net

The seats can still be adjusted when there isno SmartKey in the ignition lock.
GWARNING
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.
When adjusting a seat, make sure that no
one has any body parts in the sweep of the
seat.
GWARNING
If the driver's seat is not engaged, it could
move forwards as far as the next catch dur-
ing movement such as braking or abrupt
changes of direction. As a result, you would
be pushed against your seat belt by the
unsecured driver's seat.
This could cause you to lose control of the
vehicle. The seat belt cannot protect as
intended and could result in additional
injury.
There is a risk of an accident and injury.
Before every journey, make sure that the
driver's seat is fully engaged.
Observe the safety notes on "Air bags"(Ypage 45) and "Children in the vehicle"(Ypage 57).
GWARNING
If you adjust the seat height carelessly, you
or other vehicle occupants could be trapped
and thereby injured. Children in particular
could accidentally press the electrical seat
adjustment buttons and become trapped.
There is a risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under
the lever assembly of the seat adjustment
system.
GWARNING
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro-
tection as intended. There is an increased
risk of injury in the head and neck area, e.g.
in the event of an accident or when braking.
Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head
restraint supports the back of the head at
about eye level.
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 is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine.
!To prevent damage to the seats and theseat heating, observe the following notes:
RDo not spill liquids onto the seats. Dry theseats as soon as possible if liquid doesget spilled on the seats.
RIf the seat covers are damp or wet, do notswitch on the seat heating. Also, do notuse the seat heating to dry the seats.
RClean the seat covers as recommended;see the "Interior care" section.
RDo not transport heavy loads on theseats. Do not place pointed objects onthe seat cushions such as knives, nails ortools. Where possible, use the seats onlyfor carrying passengers.
RWhen operating the seat heating, do notcover the seats with insulating materials,e.g. blankets, coats, bags, protective cov-ers, child seats or booster seats.
RWhen the seat heating is switched on, theseat surface can be damaged as a resultof objects being placed on the seats, forexample, seat cushions, child seats andprotective covers not approved byMercedes-Benz.
!Make sure that there are no objects in thefootwell under or behind the seats whenmoving the seats back. There is a risk thatthe seats and/or the objects could be dam-aged.
iThe head restraints cannot be removed.
98Seats
Seats, steering wheel and mirrors

Switching the seat heating on/off
Switching on/off
GWARNING
Repeatedly switching on the seat heating
can cause the seat cushion and backrest
pads to become very hot. The health of per-
sons with limited temperature sensitivity or
a limited ability to react to high tempera-
tures may be affected or they may even suf-
fer burn-like injuries. There is a risk of injury.
Therefore, do not switch the seat heating on
repeatedly.
!When the seat heating is switched on, theseat surface can be damaged as a result ofobjects being placed on the seats, for exam-ple, seat cushions, child seats and protec-tive covers not approved by Mercedes-Benz.
Ensure that there are no objects on the seatsurface when the seat heating is switchedon.
Driver's and front-passenger seat
The three red indicator lamps in the buttonindicate the heating level you have selected.
The system automatically switches down fromlevel3to level2after approximately eightminutes.
The system automatically switches down fromlevel2to level1after approximately tenminutes.
The system automatically switches off approx-imately 20 minutes after it is set to level1.
XMake sure that the SmartKey is in positionGorHin the ignition lock.
XTo switch on:press buttonCrepeatedlyuntil the desired heating level is set.
XTo switch off:press buttonCrepeatedlyuntil all the indicator lamps go out.
iIf the battery voltage is too low, the seatheating may switch off.
Problems with the seat heating
ProblemPossible causes/consequences andPPSolutions
The seat heating hasswitched off prema-turely or cannot beswitched on. The vehi-cle's electrical systemvoltage is too lowbecause too many elec-trical consumers areswitched on.
Switch off electrical consumers that you do not need, such as therear window defroster or interior lighting.
Once the battery is sufficiently charged, switch on the seat heatingagain.
Seats101
Seats, steering wheel and mirrors
Z

Switching the seat ventilation on/off
Switching on/off
The three blue indicator lamps in the buttonsindicate the blower setting you have selected.
XEnsure that the SmartKey is in positionHin the ignition lock.
XTo switch on:press buttonCrepeatedlyuntil the desired blower setting is set.
XTo switch off:press buttonCrepeatedlyuntil all the indicator lamps go out.
iIf the battery voltage is too low, the seatventilation may switch off.
iIf you open the roof using the SmartKey(Ypage 92), the driver's seat ventilation isautomatically switched on and the side win-dows open.
Problems with the seat ventilation
The seat ventilation has switched off prema-turely or cannot be switched on. The vehicle'selectrical system voltage is too low becausetoo many electrical consumers are switchedon.
XSwitch off electrical consumers that you donot need, such as the rear window defrosteror interior lighting.
XOnce the battery is sufficiently charged,switch on the seat heating again.
AIRSCARF
Setting head level heating (AIRSCARF)
GWARNING
When AIRSCARF is switched on, very hot air
can flow from the vents in the head
restraints. This could result in burns in the
immediate vicinity of the air vents. There is a
risk of injury.
Reduce the heater output before it becomes
too hot.
The AIRSCARF function warms the head andneck area of vehicle occupants with warm air.The warm air flows out of the holes in the headrestraints.
The three red indicator lamps in the buttonindicate the heating level you have selected.
XEnsure that the SmartKey is in positionHin the ignition lock.
XTo switch on:press buttonC.Three red indicator lamps in the button lightup. The blower starts up after a preheatingphase of seven seconds.
XPress buttonCrepeatedly until the desiredheating level is set.
XTo switch off:press buttonCrepeatedlyuntil all the indicator lamps go out.
iThe blower continues running for sevenseconds to cool down the heating elements.
iIf the battery voltage is too low, AIRSCARFmay switch off.
102Seats
Seats, steering wheel and mirrors

Steering wheel
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 is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine.
GWARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury.
Never leave children unsupervised in the
vehicle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. This
also applies for the Digital Vehicle Key if the
"Digital Vehicle Key" function is activated via
Mercedes me connect.
The electrically adjustable steering wheel canstill be adjusted when there is no SmartKey inthe ignition lock.
Adjusting the steering wheel electri-
cally
CAdjusts the steering wheel height
DAdjusts the steering wheel position (fore-and-aft adjustment)
iFurther related subjects:
REASY-ENTRY/EXIT feature (Ypage 103)
RStoring settings (Ypage 107)
EASY-ENTRY/EXIT feature
Important safety notes
GWARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could
lose control of the vehicle. There is a risk of
an accident.
Always wait until the adjustment process is
complete before driving off.
GWARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants – particularly children – could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the steering
wheel.
Steering wheel103
Seats, steering wheel and mirrors
Z

If somebody becomes trapped:
Rpress one of the memory function posi-
tion buttons, or
Rmove the switch for steering wheel
adjustment in the opposite direction to
that in which the steering wheel is mov-
ing.
The adjustment process is stopped.
GWARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel and the driver's seat, you
and other vehicle occupants – particularly
children – could become trapped. There is a
risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the seat and
the steering wheel.
If somebody becomes trapped:
Rpress one of the memory function posi-
tion buttons, or
Rpress one of the memory function mem-
ory buttons, or
Rmove the switch for steering wheel
adjustment in the opposite direction to
that in which the steering wheel is moving
The adjustment process is stopped.
GWARNING
If you use openings in the bodywork or
detachable parts as steps, you could:
Rslip and/or fall
Rdamage the vehicle and cause yourself to
fall.
There is a risk of injury.
Always use secure climbing aids, e.g. a suit-
able ladder.
The EASY-ENTRY/EXIT feature makes gettingin and out of your vehicle easier.
You can activate and deactivate the EASY-ENTRY/EXIT feature in the on-board computer(Ypage 201).
Position of the steering wheel when
the EASY-ENTRY/EXIT feature is active
The steering wheel swings up when you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with KEYLESS-GO inposition1
Ropen the driver's door and the SmartKey isin position

Mirrors
Exterior mirrors
Adjusting the exterior mirrors
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 is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine.
GWARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is a risk of an
accident.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder.
XMake sure that the SmartKey is in positionGorHin the ignition lock.
XPress buttonCfor the left exterior mirroror buttonDfor the right exterior mirror.The indicator lamp in the corresponding but-ton lights up in red.
The indicator lamp goes out again aftersome time. You can adjust the selected
exterior mirror using button

When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. This
also applies for the Digital Vehicle Key if the
"Digital Vehicle Key" function is activated via
Mercedes me connect.
The memory function can be activated at anytime, e.g. even when the SmartKey is not inthe ignition lock.
With the memory function, you can store up tothree different settings, e.g. for three differentpeople.
The following settings are stored as a singlememory preset:
RPosition of the seat, backrest and headrestraint
RDriver's side: steering wheel position
RDriver's side: position of the exterior mirrorson the driver's and front-passenger sides
XAdjust the seat electrically (Ypage 99).
XOn the driver's side, adjust the steeringwheel (Ypage 103) and the exterior mirrors(Ypage 105).
XPress memory buttonMand one of the stor-age position buttons1,2or3within threeseconds.The settings are stored in the selected pre-set position. A tone sounds when the set-tings have been completed.
Calling up a stored setting
XPress and hold the relevant storage positionbutton1,2or3until the seat, steeringwheel and exterior mirrors are in the storedposition.
iThe setting procedure is interrupted assoon as you release the storage positionbutton.
108Memory function
Seats, steering wheel and mirrors