2012 MERCEDES-BENZ SL ROADSTER steering

This steering support is provided in particular
if:
R both right wheels or both left wheels are on
a wet or slippery road surface when you
brake.
R the vehicle starts to skid.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 70).
No steering support is provided from STEER
CONTROL, if:
R ESP ®
is malfunctioning.
R the steering is faulty.
Power steering will, however, continue to
function. Anti-theft systems
Immobiliser
X To activate with the key: remove the key
from the ignition lock.
X To activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
X To deactivate: switch on the ignition.
The immobiliser prevents your vehicle from
being started without the correct key.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
key that is left inside the vehicle.
i The immobiliser is always deactivated
when you start the engine. ATA (Anti-Theft Alarm system)
X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp :flashes. The alarm sys-
tem is primed after approximately
15 seconds.
X To switch off: unlock the vehicle with the
key or KEYLESS-GO.
A visual and audible alarm is triggered if the
alarm system is primed and you open:
R a door
R the vehicle with the emergency key ele-
ment
R the boot lid
R the bonnet
R the glove compartment
R the stowage space under the armrest
R a stowage compartment in the rear
X To turn the alarm off with the key: press
the % or& button on the key.
The alarm is switched off.
or
X Insert the key into the ignition lock.
The alarm is switched off.
X To stop the alarm using KEYLESS-GO:
grasp the outside door handle. The key
must be outside the vehicle.
The alarm is switched off.
or
X Press the Start/Stop button on the dash-
board. The key must be inside the vehicle.
The alarm is switched off. Anti-theft systems
79Safety Z

Useful information
............................112
Correct driver's seat position ..........112
Seats .................................................. 113
steering wheel .................................. 118
Mirrors ............................................... 120
Memory function .............................. 123 111Seats, steering wheel and mirrors

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos- sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 34). Correct driver's seat position
X
Observe the safety guidelines on seat
adjustment (Y page 113).
X Make sure that seat =is adjusted prop-
erly.
Electrical seat adjustment (Y page 114)
When adjusting the seat, make sure that:
R you are as far away from the driver's airbag
as possible.
R you are sitting in a normal upright position.
R you can fasten the seat belt properly.
R you have moved the backrest to an almost
vertical position. R
you have set the seat angle so that your
thighs are gently supported.
R you can depress the pedals properly.
X Check whether the head restraint is adjus-
ted 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 centre of the head restraint.
X Observe the safety guidelines on steering
wheel adjustment (Y page 118).
X Make sure that steering wheel :is adjus-
ted properly.
Adjusting the steering wheel electrically
(Y page 118)
When adjusting the steering wheel, make
sure that:
R you can hold the steering wheel with your
arms slightly bent.
R you can move your legs freely.
R you can see all the displays in the instru-
ment cluster clearly.
X Observe the safety guidelines for seat belts
(Y page 57).
X Check whether you have fastened seat
belt ;properly (Y page 59).
The seat belt should:
R fit snugly across your body
R be routed across the middle of your shoul-
der
R be routed in your pelvic area across the hip
joints
X Before starting off, adjust the rear-view mir-
ror and the exterior mirrors (Y page 120) in
such a way that you have a good view of
road and traffic conditions.
X Store the seat, steering wheel and exterior
mirror settings using the memory function
(Y page 123). 112
Correct driver's seat positionSeats, steering wheel and mirrors

Seats
Important safety notes
G
WARNING
If children adjust the seats, they could
become trapped, especially if they are unat-
tended. There is a risk of injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle. G
WARNING
If the driver's seat is not engaged, it can move unexpectedly while the vehicle is in motion.
This could cause you to lose control of the
vehicle. There is a risk of an accident.
Always make sure that the driver's seat is
engaged before starting the engine. G
WARNING
If you adjust the seat height carelessly, you or other vehicle occupants could be trapped andthereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment 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 sys-
tem. G
WARNING
When adjusting a seat, you or another vehicle occupant could become trapped by the guiderail of the seat, for instance. There is a risk of
injury.
Make sure that no one has any part of their
body within the sweep of the seat when
adjusting it. G
WARNING
The head restraints cannot provide the inten-
ded protection unless they are fitted and
adjusted correctly. There is an increased risk of injury to the head and neck in the event of
an accident or sudden braking, for example.
Always drive with the head restraints fitted.
Ensure that the centre of the head restraints
support the back of each vehicle occupant's
head at eye level before driving off. G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirror
R fasten the seat belt.
There is a risk of an accident.
Adjust the driver's seat, steering wheel or
mirror and fasten the seat belt before starting
the engine.
! To avoid damage to the seats and the seat
heating, observe the following information:
R do not spill any liquids on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if 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.
R clean the seat covers as recommended;
see the "Interior care" section.
R do not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools. The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating mate- rials, e.g. blankets, coats, bags, seat cov-
ers, child seats or booster seats. Seats
113Seats, steering wheel and mirrors Z

!
To avoid damage to the seats and the seat
heating, observe the following information:
R do not spill any liquids on the seats. If
liquid is spilled on the seats, dry them as soon as possible.
R if 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.
R clean the seat covers as recommended;
see "Interior care".
R do not transport heavy loads on the
seats. Do not place sharp objects on the seat cushions, e.g. knives, nails or tools. The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating mate-
rials, e.g. blankets, coats, bags, seat cov- ers, child seats or booster seats.
! Make sure that there are no objects in the
footwell or behind the seats when moving
the seat back. There is a risk that the seats and/or the objects could be damaged.
i The head restraints cannot be removed.
For more information, contact a qualified
specialist workshop. Adjusting the seats electrically
:
Head restraint height
; Seat height
= Seat cushion angle
? Seat cushion length A
Seat fore-and-aft adjustment
B Backrest angle
i Further related subjects:
R You can store the seat settings using the
memory function (Y page 123).
R If PRE-SAFE ®
is triggered, the front-
passenger seat will be moved to a better
position if it was previously in an unfav-
ourable position (Y page 56). Adjusting the front-passenger seat
from the driver's seat
G
WARNING
If the front seats are positioned too closely to the dashboard or steering wheel, the front
airbags could cause additional injuries to
vehicle occupants in the front. There is an
increased risk of injury, possibly even fatal.
Always adjust the front seats so that they are
as far away as possible from the front airbags.
In addition, observe the instructions on how to
adjust the seats correctly.
! Do not move the front-passenger seat
fully forwards if there are objects in the
luggage net in the front-passenger footwell. The objects could otherwise be damaged. You can use the seat switches on the driver's
side to adjust the front-passenger seat. 114
SeatsSeats, steering wheel and mirrors

X
To activate/deactivate: press button:.
If the indicator lamp in button :is lit, you can
access the following functions for the front-
passenger seat:
R seat adjustment
R call up the memory function Removing the seat belt from the seat
belt guide
G
WARNING
When driving off-road, your body is subject to forces from all directions due to the uneven
surface. You could be thrown from your seat,
for instance. There is a danger of injury.
Always wear a seat belt, even when driving off-
road. Both the driver's seat belt and the front-
passenger seat belt can be removed from the
seat belt guide. This makes it easier to move
the seats forward.
Before you drive off, the seat belt must be
inserted into the seat belt guide.
Observe the safety guidelines for seat belts
(Y page 57).
X To remove: open up magnetic head ;and
fold the tab up in the direction of the arrow.
X Take the seat belt out of seat belt guide :.
X To insert: fold the tab up in the direction of
the arrow.
X Insert the seat belt back into the seat belt
guide and fold the tab back down. Adjusting the head restraints
Adjusting the head restraints electri-
cally :
Head restraint height
; Seat height
= Seat cushion angle
? Seat cushion length
A Seat fore-and-aft adjustment
B Backrest angle
X To adjust the head restraint height: slide
the switch for the head restraint adjust-
ment :up or down in the direction of the
arrow. Sliding the seats forward/back
G
WARNING
When adjusting a seat, you or another vehicle occupant could become trapped by the guiderail of the seat, for instance. There is a risk of
injury.
Make sure that no one has any part of their
body within the sweep of the seat when
adjusting it.
! Make sure that there are no containers in
the cup holder and no objects in the foot-
well or behind the seats when adjusting the
seats. Otherwise, you could damage the
seats and the objects. Seats
115Seats, steering wheel and mirrors Z

You can move the seat forwards, in order to
gain better access to the rear compartment,
e.g. to reach the stowage compartment in the
rear (Y page 546).
X Remove the seat belt from the seat belt
guide (Y page 115).
X To move the seat forwards: press:
on switch :.
The seat moves automatically to the fore-
most position.
X To move the seat backwards: press9
on switch :.
The seat moves back to the previous posi-
tion.
X To stop seat movement: press:or
9 in the opposite direction. Adjusting the multicontour seat
You can set the multicontour seat using
COMAND Online(Y page 319).Adjusting the active multicontour
seat
You can set the active multicontour seat
using COMAND Online (Y page 319).Adjusting the 4-way lumbar support
You can adjust the 4-way lumbar support with COMAND Online (Y page 319). Switching the seat heating on/off
Switching on/off G
WARNING
If you repeatedly switch on seat heating, the
seat cushion and backrest padding may
become very hot. The health of vehicle occu-
pants with limited temperature sensitivity or a limited ability to react to excessively high
temperatures may be affected or they may
even suffer burn-like injuries. There is a risk of
injury.
Therefore, do not switch on the seat heating
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 from level 3 to level 2after approximately eight
minutes.
The system automatically switches from level
2 to 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 Online (Y page 320).116
SeatsSeats, steering wheel and mirrors

X
Make sure that the key is in position 1or 2
in 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 The seat heating has switched off prema-
turely or cannot be switched on. The vehicle's
electrical system voltage is too low because
too many electrical consumers are switched
on.
X Switch off electrical consumers that you do
not need, such as the rear window heating or interior lighting.
X Once the battery is sufficiently charged,
switch the seat heating on again. Switching the seat ventilation on/off
Switching on/off The three blue indicator lamps in the buttons
indicate the ventilation level you have selec-
ted. X
Make sure that the key is in position 1or 2
in the ignition lock.
X To switch on: press button:repeatedly
until the desired ventilation 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
ventilation may switch off.
i If you open the roof with the key
(Y page 105), the seat ventilation of the
driver's seat switches on automatically and
the side windows open.
Problems with the seat ventilation The seat ventilation has switched off prema-
turely or cannot be switched on. The vehicle's
electrical system voltage is too low because
too many electrical consumers are switched
on.
X Switch off electrical consumers that you do
not need, such as the rear window heating
or interior lighting. AIRSCARF
Activating/deactivating G
WARNING
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. Seats
117Seats, steering wheel and mirrors Z