2014 MERCEDES-BENZ SL-CLASS ROADSTER ignition

Problem Possible causes/consequences and
M
MSolutions The engine can no
longer be started using
the SmartKey. 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 233).
or
X Jump-start the vehicle (Y page 235).
or
X Consult a qualified specialist workshop. The engine can no
longer be started using
KEYLESS-GO. The
SmartKey is in the
vehicle. The vehicle is locked.
X
Unlock the vehicle and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle with the SmartKey in the ignition lock. Doors
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shift the automatic transmission out of
parking position P.
R shift the manual transmission into neutral.
R starting the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children. G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children. Doors
83Opening and closing Z

!
When opening and closing the roof, make
sure that:
R there is sufficient clearance, as the roof
swings upwards.
R there is sufficient clearance behind the
vehicle, as the trunk lid swings
backwards beyond the bumper.
R the trunk is only loaded to below the
trunk partition.
R the trunk partition is not pushed up by
the load.
R the trunk partition is closed.
R the trunk lid is closed.
R the outside temperature is above 5 ‡
(Ò15 †).
You could otherwise damage the roof,
trunk and other parts of the vehicle.
i The vehicle's dimensions when opening/
closing the roof (Y page 279).
i Make sure that the roof and rear window
are clean and dry before opening the roof.
Otherwise, water or dirt could enter the
vehicle interior or trunk. Opening and closing using the roof
switch
Important safety notes G
WARNING
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 X
Secure the vehicle against rolling away
(Y page 130).
X Close the trunk partition (Y page 94).
X Close the trunk lid.
X Turn the SmartKey to position 2in the
ignition lock.
X Open the cover in the lower center console.
Roof switch :is located under the cover.
X To open: pull soft-top switch :until the
entire soft top is stowed away in the trunk.
You see the Vario-Roof in Operation
Vario-Roof in Operation
message in the multifunction display. As
soon as the opening procedure has ended,
the message disappears and you hear a
tone.
All of the side windows open.
X To close: press and hold soft-top
switch :until the soft top is fully closed.
You see the Vario-Roof in Operation Vario-Roof in Operation
message in the multifunction display. As
soon as the closing procedure has ended,
the message disappears and you hear a
tone.
All of the side windows open.
X To close all side windows, pull the switch
under the cover of the center console
(Y page 90). 92
RoofOpening and closing

Opening and closing using the
SmartKey
Important safety notes G
WARNING
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 X
Close the trunk partition (Y page 93).
X Close the trunk lid (Y page 84).
X Vehicles without KEYLESS-GO: point the
tip of the SmartKey at the door handle on
the driver's door.
X Vehicles with KEYLESS-GO: the
SmartKey must be within 6 ft (2 m) of the
vehicle.
X To open: press and hold the %button
on the SmartKey until the roof is fully
opened.
The roof and the rear side windows open.
The front side windows close.
X To interrupt the opening procedure:
release the %button.
X To open the front side windows: press
and hold the %button on the SmartKey
again.
X To close: press and hold the &button
on the SmartKey until the roof is fully
closed.
The roof and the side windows close.
X To interrupt the closing procedure:
release the &button.
i When the roof is closed and the trunk
partition is open, the roof cannot be
opened using the SmartKey functions.
Instead, all of the side windows open or
close simultaneously (Y page 90). Locking the roof again
Important safety notes G
WARNING
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 completely.
The roof is not locked if:
R the K symbol and the Vario-Roof Vario-Roofin in
Operation
Operation message appear in the
multifunction display.
R the K symbol and the Open/Close
Open/Close
Vario-Roof Completely
Vario-Roof Completely message
appear and you hear a warning tone.
R you hear a warning tone for up to
10 seconds when pulling away or while
driving.
Locking You can lock the roof again if it is not locked
fully.
X
Pull over and stop the vehicle safely as soon
as possible, paying attention to road and
traffic conditions.
X Make sure that the SmartKey is in position
2in the ignition lock.
X Press the roof switch (Y page 92). Trunk partition
General notes !
To avoid damaging the roof or luggage
when folding back the roof, you should:
R only load the trunk to below the trunk
partition
R not place any objects on or in front of the
trunk partition Roof
93Opening and closing Z

Roller sunblind for the glass roof
The roller sunblind protects you from
excessive glare and heat caused by the sun
shining through the glass roof.
X To close: using handle :slide the roller
blind in the direction of the arrow.
X To open: using handle :slide the roller
blind in the opposite direction to the arrow. MAGIC SKY CONTROL
General notes MAGIC SKY CONTROL is a glass roof, the
transparency of which can be changed by
applying electrical voltage.
MAGIC SKY CONTROL can be switched
between darkened and transparent states.
i MAGIC SKY CONTROL darkens
automatically when you turn the SmartKey
to position 0in the ignition lock or remove
the SmartKey.
Risk of electric shock G
DANGER
MAGIC SKY CONTROL operates using high
voltage. If the trim behind the overhead
control panel 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 trim behind the overhead
control panel.
R If the trim is damaged, never touch the
electrical components behind it.
R Always have work on the MAGIC SKY
CONTROL carried out at a qualified
specialist workshop.
The electrical components of MAGIC SKY
CONTROL are protected by a paneling behind
the overhead control panel.
The MAGIC SKY CONTROL control unit is
marked with a yellow warning sticker that
warns you of high voltage. The electric cables
of the high-voltage section are colored
orange.
Operating MAGIC SKY CONTROL X
Turn the SmartKey to position 1or 2in 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 :.
i At sub-zero temperatures, the change is
slower and uneven. The entire process may
take some time. Roof
97Opening and closing Z

Problems with the roof
Problem Possible causes/consequences and
M
MSolutions The roof will not open or
close. The trunk partition is not in place.
X
Close the trunk partition (Y page 94). The trunk lid is open.
X
Close the trunk lid (Y page 85). The on-board voltage is too low.
X Leave the engine running. The roof has been opened and closed several times in a row. The
roof drive has been automatically deactivated.
You can open and close the roof again after approximately ten
minutes.
X
Switch off the ignition and turn it back on.
X Repeat the opening or closing procedure. The automatic roof mechanism is faulty.
X
Consult a qualified specialist workshop. 98
RoofOpening and closing

Therefore, do not switch the seat heating on
repeatedly. Driver's and front-passenger seat
The three red indicator lamps in the button
indicate the heating level you have selected.
The system automatically switches down
from level 3to level 2after approximately
eight minutes.
The system automatically switches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
You can set the distribution of the heated
sections of the seat cushion and backrest
using COMAND. See Digital Operator's
Manual; keyword "Seat balance (seat
heating)".
X Make sure that the SmartKey is in position
1or 2in the ignition lock.
X To switch on: press button:repeatedly
until the desired heating level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
heating may switch off.
Problems with the seat heating You can find information about this in the
Digital Operator's Manual. Steering wheel
Important safety notes
G
WARNING
You could lose control of your vehicle if you
do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten 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. G
WARNING
You can no longer steer the vehicle if the
steering wheel lock has been engaged. There
is a risk of an accident.
Always switch off the ignition when towing the
vehicle with a tow cable or a tow bar. Information in the Digital Operator's
Manual
In the Digital Operator's Manual you will find
information on the following topics:
R Adjusting the steering wheel
R EASY-ENTRY/EXIT system Mirrors
In the Digital Operator's Manual you will find
information on the following topics:
R Exterior mirrors
R Automatic anti-glare mirrors
R Parking position for the exterior mirror on
the front-passenger side 102
MirrorsSeats, steering wheel and mirrors

The exterior lighting (except the parking/
standing lamps) switches off automatically if
you:
R remove the SmartKey from the ignition lock
R open the driver's door with the SmartKey
in position 0.
Automatic headlamp mode G
WARNING
When the light switch is set to Ã, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
L.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times.
à is the favored light switch setting. The
light setting is automatically selected
according to the brightness of the ambient
light (exception: poor visibility due to weather
conditions such as fog, snow or spray):
R SmartKey in position 1in the ignition lock:
the parking lamps are switched on or off
automatically depending on the brightness
of the ambient light.
R With the engine running: if you have
activated the daytime running lamps
function via the on-board computer, the
daytime running lamps or the low-beam
headlamps and parking lamps are switched
on or off automatically depending on the
brightness of the ambient light.
X To switch on automatic headlamp
mode: turn the light switch to Ã.
Only for Canada:
The daytime running lamps improve the
visibility of your vehicle during the day. The
daytime running lamps function is required by
law in Canada. It cannot therefore be
deactivated. When the engine is running and the vehicle is
stationary: if you move the selector lever from
a drive position to
P, the daytime running
lamps/low-beam headlamps go out after
three minutes.
When the engine is running, the vehicle is
stationary and in bright ambient light: if you
turn the light switch to T, the daytime
running lamps and parking lamps switch on.
If the engine is running and you turn the light
switch to L, the manual settings take
precedence over the daytime running lamps.
USA only:
The daytime running lamps improve the
visibility of your vehicle during the day. To do
this, the daytime running lamps function must
be switched on using the on-board computer
(Y page 161).
If the engine is running and you turn the light
switch to TorL, the manual settings
take precedence over the daytime running
lamps.
Low-beam headlamps G
WARNING
When the light switch is set to Ã, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
L.
Even if the light sensor does not detect that
it is dark, the parking lamps and low-beam
headlamps switch on when the ignition is
switched on and the light switch is set to the
L position. This is a particularly useful
function in the event of rain and fog.
X To switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to
position 2or start the engine.
X Turn the light switch to L.
The green Lindicator lamp in the
instrument cluster lights up. Exterior lighting
107Lights and windshield wipers Z

Parking lamps
!
If the battery has been excessively
discharged, the parking lamps or standing
lamps are automatically switched off to
enable the next engine start. Always park
your vehicle safely and sufficiently lit
according to legal standards. Avoid the
continuous use of the Tparking lamps
for several hours. If possible, switch on the
X right or the Wleft standing lamp.
X To switch on: turn the light switch to
T.
The green Tindicator lamp in the
instrument cluster lights up.
Standing lamps
Switching on the standing lamps ensures the
corresponding side of the vehicle is
illuminated.
X To switch on the standing lamps: the
SmartKey is not in the ignition lock or it is
in position 0.
X Turn the light switch to W(left-hand side
of the vehicle) or X(right-hand side of
the vehicle).
Information in the Digital Operator's
Manual In the Digital Operator's Manual you will find
information on the following topics:
R Automatic headlamp mode
R Low-beam headlamps
R Parking lamps
R Standing lamps Combination switch
:
High-beam headlamps
; Turn signal, right
= High-beam flasher
? Turn signal, left
You can find information on the following
topics in the Digital Operator's Manual:
R Turn signals
R High-beam headlamps
R High-beam flasher Cornering light function
The cornering light function improves the
illumination of the road over a wide angle in
the direction you are turning, enabling better
visibility in tight bends, for example. The
cornering light function can only be activated
when the low-beam headlamps are switched
on. 108
Exterior lightingLights and windshield wipers