MERCEDES-BENZ SLK280 2008 R171 Owner's Manual

100 Controls in detail
Locking and unlocking
Closing the trunk
1HandleLower the trunk lid using handle1.
Close the trunk lid with hands placed
flat on the trunk lid.
Warning!G
Make sure the trunk is closed when the
engine is running and while driving.
Among other dangers, deadly carbon
monoxide (CO) gases may enter vehicle
interior resulting in unconsciousness and
death.
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
iIf the vehicle was previously centrally
locked, the trunk lid will lock automatically when
closed. The turn signal lamps will flash three
times to confirm locking.
Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the trunk
lid opening when closing the trunk lid.
Be especially careful when small children
are around.
Warning!G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. A child’s
unsupervised access to a vehicle could
result in an accident and/or serious
personal injury.

101 Controls in detail
Locking and unlocking
Valet locking
The lock is located next to the handle
above the rear license plate recess.1Neutral position
2Locked
Close the trunk (page 100).
Pull the mechanical key out of the
SmartKey (
page 394).
Insert the mechanical key in the trunk
lid lock.
Turn the mechanical key clockwise to
position 2 and remove the mechanical
key in that position to lock the trunk.
The trunk remains locked even when the
vehicle is centrally unlocked.
Insert the mechanical key in the trunk
lid lock.
Turn the mechanical key counterclock-
wise to neutral position1 and remove
the mechanical key in that position to
unlock the trunk.
You can now open the trunk
(
page 99).
iDepending on vehicle production date, your
vehicle may be equipped with a feature that per-
mits separate locking and unlocking of the trunk
with the mechanical key. If present, this function
can permit you to deny any unauthorized person
access to the trunk, e.g. when you valet park the
vehicle. You can lock the trunk separately with
the mechanical key and leave only the SmartKey
less its mechanical key with the vehicle.
To verify the presence of this feature, use the
mechanical key to lock the trunk and then
attempt to open the trunk by pulling on the trunk
lid handle after the vehicle has been centrally
unlocked with the SmartKey.
iYou can only cancel the separate trunk
locking mode by means of the mechanical key.

102 Controls in detail
Locking and unlocking
Trunk lid emergency release
With the emergency release button, the
trunk can be opened from inside the trunk.
1Emergency release button
Briefly press emergency release
button1.
The trunk lid unlocks and opens
slightly.
Push up the trunk lid to fully open.Illumination of the emergency release
button:

The button flashes for 30 minutes after
opening the trunk.

The button flashes for 60 minutes after
closing the trunk.
Automatic central locking
The doors and the trunk automatically lock
when the vehicle is set into motion.
You can deactivate the automatic locking
using the control system, see “Setting
automatic locking” (
page 146).
iThe emergency release button unlocks
the trunk while the vehicle is standing still or
in motion.
iThe emergency release button does not un-
lock the trunk if the vehicle battery is discharged
or disconnected.
iIf the vehicle has previously been centrally
locked with the SmartKey, opening the trunk
from the inside will trigger the anti-theft alarm
system.
To cancel the alarm, do one of the following:

Press buttonŒor‹on the
SmartKey.

Insert the SmartKey in the starter switch.
iYou can open a locked door from the inside.
Open door only when conditions are safe to do
so.
iThe doors unlock automatically after an
accident if the force of the impact exceeds a
preset threshold.
The vehicle locks automatically when the ignition
is switched on and the wheels are turning at a
vehicle speed of approximately 9 mph (15 km/h)
or more. You could therefore lock yourself out
when the vehicle

is pushed or towed

is on a test stand

103 Controls in detail
Locking and unlocking
Locking and unlocking from the inside
You can lock or unlock the doors and the
trunk from the inside using the central
locking or unlocking switch. This can be
useful, for example, if you want to lock the
vehicle before starting to drive.
The central locking switch and central
unlocking switch do not lock or unlock the
fuel filler flap or the interior storage com-
partments, such as the glove box.1Central locking switch
2Central unlocking switch
Locking
Press central locking switch1.
If all doors are closed, the vehicle
locks.
Unlocking
Press central unlocking switch2.
The vehicle unlocks.
Warning!G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. A child’s
unsupervised access to a vehicle could
result in an accident and/or serious
personal injury.
iYou can open a locked door from the inside.
Open door only when conditions are safe to do
so.
If the vehicle was previously centrally locked
using the SmartKey, it will not unlock using the
central unlocking switch.
If the vehicle was previously locked with the
central locking switch

and the SmartKey is set to factory settings,
the complete vehicle is unlocked when a
door is opened from the inside

and the SmartKey is set to selective settings,
only the door opened from inside is unlocked

104 Controls in detail
Seats
For information on seat adjustment, see
“Adjusting” (
page 39).
Seat heating*
1Seat heating switch
2Indicator lampsRed indicator lamps2 on seat heating
switch 1 show which heating level you
have selected:
Switch on the ignition (page 37).Switching on seat heating
Press switch 1 repeatedly until the
desired heating level is set.
One or more red indicator lamps2
show the selected heating level.
Switching off seat heating
Press switch 1 repeatedly until all
indicator lamps2 go out.
Level
3Three indicator lamps on
(highest level).
After approximately 5 minutes,
seat heating is automatically
switched to level 2.
2Two indicator lamps on.
After approximately 10 minutes,
seat heating is automatically
switched to level 1.
1One indicator lamp on
(lowest level).
After approximately 20 minutes,
seat heating is automatically
switched to off.
offNo indicator lamp on.
iIf one or more indicator lamps2 on the
seat heating switch are flashing, there is insuffi-
cient voltage available since too many electrical
consumers are turned on. The seat heating
switches off automatically.
The seat heating will switch back on again
automatically as soon as sufficient voltage is
available.

105 Controls in detail
Seats
Lumbar support*
The curvature of the seats can be adjusted
to help enhance lower back support and
seating comfort.
1Upper seat curvature
2Lower seat curvature
Switch on the ignition (page 37).
Turn adjustment wheels 1 and 2
until you have reached the desired seat
curvature.
AIRSCARF neck-level heating*
The AIRSCARF neck-level heating provides
the area surrounding the occupants’ necks
with a heated air stream flowing from
openings in the head restraints.
1AIRSCARF switch
2Indicator lamps
Warning!G
When switching on the AIRSCARF neck-level
heating, the air streaming from the openings
may be very hot. When in close proximity to
the openings, you could be seriously
burned. To help avoid serious personal
injuries, switch the AIRSCARF to a lower
heating level.

106 Controls in detail
Seats
Red indicator lamps2 on AIRSCARF
switch 1 show which heating level you
have selected:
Switch on the ignition (page 37).Switching on
Press the AIRSCARF switch1 for the
desired side.
All three indicator lamps 2 on
respective AIRSCARF switch 1 come
on. After a preheating time of approxi-
mately 7 seconds, the blower starts.
Press AIRSCARF switch 1 repeatedly
until the desired AIRSCARF heating
level for the corresponding seat is
reached.Switching off
Press AIRSCARF switch1 repeatedly
until all indicator lamps 2 on
AIRSCARF switch 1 go out.
Level
3Three indicator lamps on
(highest level).
2Two indicator lamps on.
1One indicator lamp on
(lowest level).
offNo indicator lamp on.
iAfter switching off the AIRSCARF neck-level
heating, the AIRSCARF fan continues to operate
for approximately 10 seconds to cool down the
heater elements.
iIf one or more indicator lamps2 on
AIRSCARF switch 1 are flashing, there is insuf-
ficient voltage available since too many electri-
cal consumers are turned on. The AIRSCARF
neck-level heating switches off automatically.
The AIRSCARF neck-level heating will switch
back on again automatically as soon as sufficient
voltage is available.

107 Controls in detail
Memory function*
Memory function*
Prior to operating the vehicle, the driver
should check and adjust the seat height,
seat position fore and aft, and seat back-
rest angle if necessary, to ensure adequate
control, reach and comfort. The head re-
straint should also be adjusted for proper
height. See also the section on air bags
(
page 66) for proper seat positioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, operation
and comfort. Both the interior and exterior
rear view mirrors should be adjusted for
adequate rear vision.
Fasten seat belts. Infants and small
children should be seated in an appropri-
ate infant or child restraint system which is
properly secured by a lap-shoulder belt
and that complies with U.S. Federal Motor
Vehicle Safety Standards 213 and 255
and Canadian Motor Vehicle Safety
Standards 213 and 210.2.With the memory function you can store up
to three different configurations.
Each store position on the driver’s side
includes the following settings:

Seat position

Steering wheel position

Exterior rear view mirrors’ position
Each store position on the passenger side
includes the following setting:

Seat positionThe memory button and memory position
switch are located on the outer side of
each seat.
1Memory buttonM
2Memory position switch
Switch on the ignition (page 37).
or
Open the respective door.
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.

108 Controls in detail
Memory function*
Storing positions into memory
Adjust the seat, on the driver’s side
also the steering wheel and exterior
rear view mirrors, to the desired
positions (
page 39).
Press memory buttonM.
Release memory buttonM and press a
memory position switch 2 within
3 seconds.
All settings are stored to the selected
position.
Recalling positions from memory
Press and hold desired memory
position switch2 until the seat, on
the driver’s side also the steering
wheel and exterior rear view mirrors,
have completely moved to the stored
positions.
!Do not operate the power seats using the
memory position switches if the seat backrest is
in an excessively reclined position. Doing so
could cause damage to the seats.
iReleasing the memory position switches
immediately stops movement to the stored
positions.

109 Controls in detail
Lighting
Lighting
For information on how to switch on the
headlamps and use the turn signals, see
“Switching on headlamps” (
page 55)
and “Turn signals” (
page 55).
Exterior lamp switch
Exterior lamp switch
iIf you drive in countries where vehicles drive
on the other side of the road than the country in
which the vehicle is registered, you must have
the headlamps modified for symmetrical low
beams. Relevant information can be obtained at
any authorized Mercedes-Benz Center.
1‚Standing lamps, left
(turn left two stops)
2ˆStanding lamps, right
(turn left one stop)
3MOff
Daytime running lamp mode
(
page 111)
4UAutomatic headlamp mode
Daytime running lamp mode
(
page 111)
5CParking lamps (also tail lamps,
license plate lamps,side marker
lamps, instrument panel lamps)
6BLow beam headlamps or high
beam headlamps
7‡Front fog lamps
8†Rear fog lamp
iIf you hear a warning signal, you have forgot-
ten to switch off the low beam headlamps or the
parking lamps before opening the driver’s door.
In addition, the message
Switch Off Lights
appears in the multifunction display.
Switch off the low beam headlamps or the park-
ing lamps.
If the message
Switch off lights or
remove key.
appears in the multifunction
display, remove the SmartKey from the starter
switch or switch off the automatic headlamp
mode.
!Failure to switch off the exterior lamps when
leaving the vehicle may result in a discharged
battery.