2016 MERCEDES-BENZ SL ROADSTER Owners Manual

The key centrally locks/unlocks:
R the doors
R the boot lid
R the glove compartment
R the stowage compartment under the armrest
R the stowage compartment in the rear com-
partment
R the fuel filler flap
When unlocking, the turn signals flash once.
When locking, they flash three times.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated or deactivated using the
on-board computer (Y page 211).
When it is dark, the surround lighting also comes
on if it is activated in the on-board computer
(Y page 210). KEYLESS-GO
General notes Bear in mind that the engine can be started by
any of the vehicle occupants if there is a KEY-
LESS-GO key in the vehicle (Y page 134).
Locking and unlocking centrally You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you need to carry the
key with you. You can combine the KEYLESS-GO
functions with the functions of a conventional
key. Unlock the vehicle by using KEYLESS-GO,
for instance, and lock it using the &button
on the key.
The driver's door and the door at which the han- dle is used must both be closed. The key must beoutside the vehicle. When locking or unlocking
with KEYLESS-GO, the distance between the keyand the corresponding door handle must not be
greater than 1 m.
A check which periodically establishes a radio
connection between the vehicle and the key
determines whether a valid key is in the vehicle. This occurs, for example:
R when starting the engine
R whilst driving
R when using HANDS-FREE ACCESS
R when the external door handles are touched X
To unlock the vehicle: touch the inner sur-
face of the door handle.
X To lock the vehicle: touch sensor surface :
or ;.
Make sure that you do not touch the inner
surface of the door handle.
X Convenience closing feature: touch
recessed sensor surface ;for an extended
period.
For further information on the convenience
closing feature (Y page 91).
Deactivating and activating If you do not intend to use a key for an extended
period of time, you can deactivate the KEYLESS-
GO function of the key. The key will then use very
little power, thereby conserving battery power.
For the purposes of activation or deactivation,
the vehicle does not have to be nearby.
X To deactivate: press the&button on the
key twice in rapid succession.
The battery check lamp (Y page 80) of the
key flashes twice briefly and lights up once,
then KEYLESS-GO is deactivated.
X To activate: press any button on the key.
or
X Insert the key into the ignition lock.
KEYLESS-GO and all of its associated features
are available again. Changing the settings of the locking
system
You can change the settings of the locking sys-
tem. This means that only the driver's door, the
lockable stowage compartment in the vehicle
interior and the fuel filler flap are unlocked when 78
KeyOpening and closing

the vehicle is unlocked. This is useful if you fre-
quently travel alone.
X To change the setting: press and hold down
the % and& buttons simultaneously
for about six seconds until the battery indica- tor lamp flashes twice (Y page 80).
If the setting of the locking system is changed
within the signal range of the vehicle, pressing
the & or% button:
R locks or
R unlocks the vehicle
The key now functions as follows:
X To unlock: press the%button once.
X To unlock centrally: press the%button
twice.
X To lock centrally: press the&button.
The KEYLESS-GO function is changed as fol-
lows:
X To unlock the driver's door: touch the inner
surface of the door handle on the driver's
door.
X To unlock centrally: touch the inner surface
of the driver or front-passenger door handle.
X To lock centrally: touch the outer sensor
surface on one of the door handles.
X To restore the factory settings: press and
hold down the %and& buttons simul-
taneously for approximately six seconds until
the battery check lamp flashes twice
(Y page 80). Emergency key element
General notes If the vehicle can no longer be locked or
unlocked with the key or with KEYLESS-GO, use the emergency key element.
If you use the emergency key element to unlock
and open the driver's door or the boot lid, the
anti-theft alarm system will be triggered. Switch
off the alarm (Y page 74). Removing the emergency key element X
Push release catch :in the direction of the
arrow and, at the same time, remove emer-
gency key element ;from the key.
Further information about: R Unlocking the driver's door (Y page 84)
R Unlocking the boot (Y page 89)
R Locking the vehicle (Y page 84)
Inserting the emergency key element X
Push emergency key element ;completely
into the key until it engages and release
catch :is back in its basic position. Battery of the key
Important safety notes G
WARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention immediately. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in an Key
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Z

environmentally responsible
recycling system. Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used batter-
ies.
Mercedes-Benz recommends that you have the
batteries replaced at a qualified specialist work- shop.
Checking the battery X
Press the &or% button.
The battery is OK if battery check lamp :
lights up briefly.
The battery is discharged if battery check
lamp :does not light up briefly.
X Replace the battery (Y page 80).
If the battery of the key is checked within the
signal reception range of the vehicle, pressing
the & or% button:
R locks or
R unlocks the vehicle
i You can obtain a battery from any qualified
specialist workshop.
Replacing the battery You require a CR 2025 3 V cell battery.
X Take the emergency key element out of the
key (Y page 79). X
Press emergency key element ;into the
opening in the key in the direction of the arrow
until battery compartment cover :opens.
When doing so, do not hold battery compart-
ment cover :shut.
X Remove battery compartment cover :. X
Repeatedly tap the key against your palm until
battery =falls out.
X Insert the new battery with the positive ter-
minal facing upwards. Use a lint-free cloth to
do so.
X Make sure that the surface of the battery is
free of lint, grease and other contamination.
X Insert the front tabs of battery compartment
cover :into the housing and then press to
close it.
X Insert emergency key element ;into the key
(Y page 79).
X Check the function of all key buttons on the
vehicle. 80
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Problems with the key
Problem
Possible causes/consequences and
M
MSolutions You can no longer lock or
unlock the vehicle using
the key. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 80) and replace if necessary
(Y page 80).
If this does not work: X Unlock (Y page 84) or lock (Y page 84) the vehicle using the
emergency key element. There is interference from a powerful source of radio waves.
X Unlock (Y page 84) or lock (Y page 84) the vehicle using the
emergency key element. The key is faulty.
X Unlock (Y page 84) or lock (Y page 84) the vehicle using the
emergency key element.
X Have the key checked at a qualified specialist workshop. You can no longer lock or
unlock the vehicle using
KEYLESS-GO. KEYLESS-GO has been deactivated.
X Reactivate KEYLESS-GO (Y page 78). The key battery is discharged or nearly discharged.
X Check the key battery (Y page 80) and replace if necessary
(Y page 80).
If this does not work: X Unlock (Y page 84) or lock (Y page 84) the vehicle using the
emergency key element. There is interference from a powerful source of radio waves.
X Unlock (Y page 84) or lock (Y page 84) the vehicle using the
emergency key element. There is a fault with KEYLESS-GO.
X Lock/unlock the vehicle using the remote control function of the
key.
X Have the vehicle and key checked at a qualified specialist work-
shop.
If the vehicle cannot be locked/unlocked even using the remote con-
trol function:
X Unlock (Y page 84) or lock (Y page 84) the vehicle using the
emergency key element.
X Have the vehicle and key checked at a qualified specialist work-
shop. Key
81Opening and closing Z

Problem
Possible causes/consequences and
M
MSolutions The engine can no longer
be started using the key. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary (Y page 295).
or X Jump-start the vehicle (Y page 296).
or X Consult a qualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The key is in the
vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 80) and replace if necessary
(Y page 80).
If this does not work: X Start your vehicle with the key in the ignition lock. There is interference from a powerful source of radio waves.
X Start your vehicle with the key in the ignition lock. You have lost a key. X
Have the key deactivated at a qualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. Doors
Important safety notes
United Kingdom only: G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle. If the vehicle has been locked from the outside,
the double lock function is activated as stand-
ard. It is then not possible to open the doors
from inside the vehicle. You can deactivate the
double lock function by deactivating the interior
motion sensor (Y page 76). The doors can then
be opened from the inside after the vehicle has
been locked from the outside. The anti-theft
alarm system is triggered if the door is opened
from the inside. Switch off the alarm
(Y page 74).
All countries: 82
DoorsOpening and closing

G
WARNING
If children are left unsupervised in the vehicle, they can:
R open doors and endanger other persons or
road users
R climb out and be injured by the traffic
R operate vehicle equipment and, for exam-
ple, trap themselves.
Children could also set the vehicle in motion, for example by:
R releasing the parking brake
R shifting the automatic transmission out of
park position P
R starting the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle. Always
keep the key out of reach of children. Unlocking and opening the doors
from the inside
! The side windows will not open/close if the
battery is discharged or if the side windows
have iced up. It will then not be possible to
close the door. Do not attempt to force the
door to close. You could otherwise damage
the door or the side window.
For all countries except the United Kingdom:
you can open a door from inside the vehicle even if it has been locked.
If the vehicle has previously been locked from
the outside, opening a door from the inside will
trigger the anti-theft alarm system. Switch off
the alarm (Y page 74).
Only for the United Kingdom: if the vehicle
has been locked with the key from the outside,
the double lock function is activated as stand-
ard. It is then not possible to open the doors
from inside the vehicle. You can deactivate the
double lock function by deactivating the interior motion sensor (Y page 75). The doors can then
be opened from the inside after the vehicle has
been locked from the outside. The anti-theft
alarm system is triggered if the door is opened from the inside. Switch off the alarm
(Y
page 74). X
Pull door handle ;.
If the door is locked, locking knob :pops up.
The door is unlocked and can be opened.
When a door is opened, the side window on that
side opens slightly. When the door is closed, the
side window is raised again. Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle from
the inside. For example, you can unlock the
front-passenger door from the inside or lock the
vehicle before you pull away. X
To unlock: press button :.
X To lock: press button ;.
If the front-passenger door is closed, the vehi-
cle locks.
The central locking button does not lock or
unlock the fuel filler flap or the stowage com-
partments, such as the glove compartment.
You cannot unlock the vehicle centrally from the
inside if the vehicle has been locked with the key or KEYLESS-GO. Doors
83Opening and closing Z

For all countries except the United Kingdom:
you can open a door from inside the vehicle evenif it has been locked.
United Kingdom only: you can only open a
door from inside the vehicle if the double-lock
function has been deactivated. You can deacti-
vate the double lock function by deactivating the
interior motion sensor (Y page 75).
When a locked door is opened from inside the
vehicle, the previous unlocking process will be
observed if the vehicle has been:
R locked with the locking button for the central
locking or
R locked automatically
The vehicle will be fully unlocked if it had previ-
ously been fully unlocked. Only the door which
has been opened from the inside is unlocked if
only the driver's door had been previously
unlocked. Automatic locking feature
X
To deactivate: press and hold button :for
about five seconds until a tone sounds.
X To activate: press and hold button ;for
about five seconds until a tone sounds.
If you press one of the two buttons and do not
hear a tone, the relevant setting has already
been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn-
ing.
You could therefore be locked out if:
R the vehicle is being pushed
R the vehicle is being towed
R the vehicle is being tested on a dynamometer You can also activate and deactivate the auto-
matic locking function using the on-board com-
puter (Y page 211). Power closing
Power closing pulls the doors and boot lid into
their locks automatically even if they are only
partly closed. X Power closing feature (doors): push the
door past the first detent position into the
lock.
Power closing will pull the door fully closed.
X To power close the boot lid: lightly push the
boot lid closed.
The power closing function pulls the boot lid
closed. Unlocking/locking the driver's door
using the emergency key element
i In order to lock all of the vehicle's locks,
begin by pressing the button for locking the
vehicle from the inside while the driver's door
is open. Then proceed to unlock the driver's
door using the emergency key element. X
To unlock: turn the emergency key element
anti-clockwise as far as it will go to position
1.
X To lock: turn the emergency key element
clockwise as far as it will go to position 1.
Right-hand-drive vehicle: turn the emergency
key element in the opposite direction in both
cases.
If you use the emergency key element to unlock
and open the driver's door, the anti-theft alarm
system will be triggered. Switch off the alarm
(Y page 74). 84
DoorsOpening and closing

Boot
Important safety notes
G
WARNING
If objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, especially when braking or abruptly changing directions.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
! The boot lid swings upwards when opened.
Therefore, make sure that there is sufficient
clearance above the boot lid.
! Only close the boot once the roof is lowered
completely. Otherwise, you could damage the roof.
The opening dimensions of the boot lid can be
found in the "Vehicle data" section
(Y page 327).
When the roof is open, you can use the loading
aid to raise the folded roof in the boot to make
loading easier (Y page 264). The boot separator
opens automatically.
You can unlock the boot lid when the vehicle is
stationary and the roof is fully opened or closed.
Do not leave the key in the boot. You could oth- erwise lock yourself out.
The boot lid can be:
R opened and closed from outside
R opened and closed automatically from out-
side (vehicles with boot lid remote closing
feature)
R opened and closed automatically from inside
(vehicles with boot lid remote closing feature)
R opened, closed or stopped during operation
without the use of your hands (vehicles with
KEYLESS-GO and HANDS-FREE ACCESS)
R locked separately
R unlocked with the emergency key element
Stow luggage or loads preferably in the boot. Boot lid reversing function
The boot lid is equipped with an automatic
reversing function. It reacts if a solid object
obstructs or restricts the boot lid during the
closing procedure. The boot lid opens again
automatically. The automatic reversing function
is only an aid and is not a substitute for your
attentiveness to the boot lid while it is closing. G
WARNING
The reversing function does not react:
R to soft, light and thin objects, e.g. fingers
R over the last 8 mm of the closing path
The reversing feature cannot prevent some-
one being trapped in these situations in par-
ticular. There is a risk of injury.
When closing make sure that no body parts
are in the closing area.
If someone is trapped:
R press the Fbutton on the key or
R press the remote operating switch on the
driver’s door, or
R press the closing or locking button on the
boot lid, or
R pull the boot lid handle Opening/closing from the outside
Opening X
Press the %button on the key.
X Pull handle :.
X Raise the boot lid.
If the boot separator was previously closed,
the boot separator opens and remains open. Boot
85Opening and closing Z