MERCEDES-BENZ SL500 2003 R230 Owners Manual

91 Controls in detail
Locking and unlocking
Closing the trunk lid
1Handle
Lower trunk lid by pulling firmly on
handle1.
Automatic central locking
The doors and the trunk lid automatically
lock when the vehicle is set into motion.
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
You can deactivate the automatic locking
using the control system (
page 128).
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the trunk
opening when closing the trunk lid. Be espe-
cially careful when small children are
around.
iTo prevent an inadvertent lockout, do
not place the key in the trunk.
Vehicles with KEYLESS-GO*: To pre-
vent a possible inadvertent lockout, the
trunk lid will open automatically if a
KEYLESS-GO card is recognized inside
the trunk.
When the hardtop is retracted, it must
be completely lowered in the trunk be-
fore the trunk lid can be closed
(page 199).
Warning!
G
Only drive with the trunk closed as, among
other dangers such as visibility blockage,
exhaust fumes may enter the vehicle interi-
or.
iThe doors unlock automatically after an
accident if the force of the impact ex-
ceeds a preset threshold.
The vehicle automatically locks when
the ignition is switched on and the
wheels are turning at vehicle speeds of
approximately 9 mph (15 km/h) or
more. You could therefore lock yourself
out when the vehicle

is pushed


is on a test stand

92 Controls in detailLocking and unlockingLocking and unlocking from the inside
You can lock or unlock the vehicle from in-
side using the central locking switches.
This can be useful, for example, if you want
to unlock the passenger door from the in-
side or want to lock the vehicle before
starting to drive.
The switches are located above and be-
tween the center air vents of the air condi-
tioning.
Central locking switches1Locking
2Unlocking
Locking
Press central locking switch1.
If all the doors are closed, the vehicle
locks.
Unlocking

Press central locking switch2.
The vehicle unlocks.
iYou can open a locked door from inside
at any time. Open door only when con-
ditions are safe to do so.
If you have locked the vehicle with the
key or the KEYLESS-GO* card, the cen-
tral locking switches do not work.
iIf the vehicle was previously centrally
locked using the SmartKey or the
KEYLESS-GO* card, it will not unlock
using the central locking switch.Warning!
G
When leaving the vehicle, always remove the
key from the starter switch, take the KEY-
LESS-GO
* card (if so equipped) with you
and lock the vehicle. Do not leave children
unattended in the vehicle, or with access to
an unlocked vehicle. Unsupervised use of
vehicle equipment may cause an accident
and/or serious personal injury.

93 Controls in detail
Seats
Seats
Information on seat adjustment can be
found in the “Getting started” section
(page 32).
Lumbar support
You can adjust the contour of the seat’s
lumbar support to best support your spine.
The thumbwheel is located on the lower
side of the seat.
1Thumb wheel
Make sure the ignition is switched on.
All the lamps in the instrument cluster
should light up.

Set the lumbar support between 0
and 5.
Multicontour backrest*
You can adjust the backrest contour of the
seat to support your spine.
The switches are located on the lower side
of the seat.
1Lumbar region support
2Shoulder region support
3Backrest side cushions
4Massage function (PULSE)
Make sure the ignition is switched on.
All the lamps in the instrument cluster
should light up.

94 Controls in detailSeatsLumbar region support
Press
k
or
j
on rocker
switch1.
This selects the air cushion you wish to
adjust.

Press
æ
or
ç
on rocker
switch1.
The air cushion inflates or deflates.Shoulder region support

Press
æ
or
ç
on switch2.
The air cushion inflates or deflates.
Backrest side cushions

Press switch3 to the right or left.
The lateral support increases or de-
creases.Massage function (PULSE)
You can reduce muscle tension during long
trips by periodically using the massage
function.

Press button4.
The indicator lamp on button4 lights
up. The air cushions in the lumbar re-
gion inflate and deflate rhythmically.iThe massage function switches off au-
tomatically after approximately eight
minutes. The indicator lamp extinguish-
es.

95 Controls in detail
Seats
Moving the seats forward and backward
You can move the seats forward and back
to facilitate loading and unloading.
The switch is located on the top side of the
seat.
1Seat forward
2Seat backwardMoving the seat forward

Press switch at1.
Moving the seat backward

Press switch at2.
Warning!
G
When moving the seats, be sure that no one
can be caught by them. Never place hands
under seat or near any moving parts during
a seat adjustment procedure. To stop the
seat from moving when potential danger ex-
ists:

press the switch again


move the seat adjustment switch on the
door (
page 32)
!To avoid damage to seats, make sure
that there is nothing in the cup holder
and that no bags are in the footwells or
behind the seats during seat move-
ment.

96 Controls in detailSeatsSeat ventilation*
The switch is located on the door. The blue
indicator lamps on the switch show the
ventilation level selected:
1Seat ventilation switch
Make sure the ignition is switched on.All the lamps in the instrument cluster
light up.
Switching on the seat ventilation

Press switch1.
Three blue indicator lamps on the
switch light up.
Switching off the seat ventilation

Press switch1 repeatedly until all indi-
cator lamps go out.
Level 3
Three indicator lamps on
Level 2
Two indicator lamps on
Level 1
One indicator lamp on
Ventilation off
No indicator lamp on
iIn normal operation the seat ventilation
will switch off automatically after about
30 minutes.
!If one or all of the lamps blink on the
seat ventilation* switch, there is insuf-
ficient voltage since too many electri-
cal consumers are switched on. The
seat ventilation* switches off automat-
ically.
The seat ventilation* will switch back
on again automatically as soon as suffi-
cient voltage is available.

97 Controls in detail
Seats
Seat heater
Vehicles without seat ventilation*
The switch is located on the door.
1Normal heating
2Rapid heating
Make sure the ignition is switched on.
All the lamps in the instrument cluster
light up.Switching on the seat heater

Press lower switch position1.
A red indicator lamp on the switch
lights up.
Switching off the seat heater

Press lower switch position1 again.
Rapid seat heating mode

Press upper switch position2.
Both red indicator lamps on the switch
light up. Switching off rapid seat heating mode

Press upper switch position2 again.
iThe seat heater will be automatically
switched off after approximately
30 minutes. iThe system switches over to normal
heating mode after approximately five
minutes. Only the right-hand indicator
lamp remains lit.
!If one or both of the lamps on the seat
heater switch are blinking, there is in-
sufficient voltage available since too
many electrical consumers are turned
on. The seat heater switches off auto-
matically.
The seat heater will switch back on
again automatically as soon as suffi-
cient voltage is available.

98 Controls in detailSeatsVehicles with seat ventilation*
The switch is located on the door. The red
indicator lamps on the switch show the
heater level selected:
1Seat heater switch
Make sure the ignition is switched on.
All the lamps in the instrument cluster
light up.Switching on the seat heater

Press upper switch position1 twice.
A red indicator lamp on the switch
lights up.
Switching off the seat heater

Press upper switch position1 again.
Rapid seat heating

Press upper switch position1 once.
Both indicator lamps on the switch light
up. Switching off rapid seat heating mode

Press upper switch position1 twice.
Seat heater off
No indicator lamp on
Level 1
One indicator lamp on
Level 2
Two indicator lamps on
iThe seat heater will be automatically
switched off after approximately
30 minutes. iThe system switches over to normal
heating mode after approximately five
minutes. Only the right-hand indicator
lamp remains lit.
!If one or both of the lamps on the seat
heater switch are blinking, there is in-
sufficient voltage available since too
many electrical consumers are turned
on. The seat heater switches off auto-
matically.
The seat heater will switch back on
again automatically as soon as suffi-
cient voltage is available.

99 Controls in detail
Memory function
Memory function
With the memory switch you can store up
to three different settings per key and KEY-
LESS-GO* card.
The following settings are saved for each
stored position:

Driver’s seat and backrest position


Steering wheel position


Inside rear view mirror position


Driver’s side exterior rear view mirror
position


Passenger side exterior rear view mir-
ror position
These key dependent memory settings can
be deactivated if desired (
page 130).The memory switch is located on the door.
MMemory button
1, 2, 3Stored positions

Be sure that the ignition is switched on
or one door is open.
All the lamps in the instrument cluster
light up when the ignition is switched
on.
!Prior to operating the vehicle, the driv-
er should check and adjust the seat
height, seat position fore and aft, and
seat backrest angle if necessary, to en-
sure adequate control, reach and com-
fort. The head restraint should also be
adjusted for proper height. Also see air-
bag section (
page 53) for proper seat
positioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, opera-
tion and comfort. Both the inside and
outside rear view mirrors should be ad-
justed for adequate rear vision.
Fasten seat belts. Infants and small
children should be seated in a properly
secured restraint system that complies
with U.S. Federal Motor Vehicle Safety
Standard 213 and Canadian Motor Ve-
hicle Safety Standard 213.
Warning!
G
Do not activate the memory function while
driving. Activating the memory function
while driving could cause the driver to lose
control of the vehicle.

100 Controls in detailMemory functionStoring positions into memory
Adjust the seats, steering wheel and
rear view mirrors to the desired posi-
tion (
page 32).

Press memory buttonM.

Release memory button and press a
stored position button1, 2, or3 within
three seconds.
All the settings are stored at the select-
ed position.
Recalling positions from memory
On memory switch, press and hold
stored position button1, 2 or3 until
the seat, steering wheel and rear view
mirrors have fully moved to the stored
positions.
Storing parking position
For easier parking you can adjust the pas-
senger exterior rear view mirror so that you
can see the right rear wheel as soon as you
engage reverse gearR.
The exterior rear view mirror returns to its
stored driving position:

10 seconds after you put the gear se-
lector lever in positionD


immediately once you exceed a speed
of approx. 6 mph (10 km/h)


immediately when you press the button
for driver’s side mirror
iReleasing the button immediately
stops movement to the stored posi-
tions.
iThe mirror parking position feature
(page 131) must be activated and the
passenger side exterior rear view mirror
(page 35) must be selected at the
time in order for the system to recall the
stored mirror position when reverse
gearR is engaged.