25 At a glance
Cockpit
ItemPage
1Automatic transmission*:
Steering wheel gearshift
control*163
2Multifunction steering
wheel28,
122
3Horn
4Instrument cluster26,
118
5Overhead control panel31,
116
6Glove box253
CD changer*216,
253
7Center console29, 30
8Sun sensor for automatic
climate control*
9Starter switch37
ItemPage
aSteering wheel adjustment
release handle, manual43
bSteering wheel adjustment
stalk, electrical*44
Heated steering wheel
stalk* (SLK 280,
SLK 350, Canada only)276
cHood lock release lever294
dExterior lamp switch55,
109
eCombination switch
High beam55
Turn signals55
Windshield wipers56
fPower window switches235
gInside door handle98
hCruise control lever248
33 At a glance
Storage compartments
ItemPage
1Glove box253
2Door pocket
3Trunk
Vehicle tool kit, jack, spare
wheel389
Luggage cover241
Trunk load450
Load limit309
4Door pocket
5Cupholder255
ItemPage
6Parcel net in passenger
footwell254
7Ashtray255
Cigarette lighter256
8Storage tray
9Storage/telephone*
compartment253
aStorage compartment
between seat backrests254
70 Safety and Security
Occupant safety
The air bags will not deploy in impacts
which do not exceed the system’s deploy-
ment thresholds. You will then be protect-
ed by the fastened seat belts.The passenger air bag will only be de-
ployed if
the system, based on OCS weight sen-
sor readings, senses that the front pas-
senger seat is occupied
the 75indicator lamp in
the center console is not lit
(
page 74)
the impact exceeds a preset deploy-
ment threshold
Knee bags
The driver-side knee bag is located on the
driver’s side lower instrument panel. The
passenger-side knee bag is located on the
passenger side below the glove box. They
are designed to operate together with the
front air bags in certain frontal impacts
exceeding a preset threshold. The knee
bags operate best in conjunction with
properly positioned and fastened seat
belts.Head-thorax air bags
1Head-thorax air bag
The head-thorax air bags are deployed
in impacts exceeding a preset deploy-
ment threshold
on the impacted side of the vehicle
independently of the front air bags
The head-thorax air bags are not deployed
in impacts which do not exceed the
system’s deployment threshold.
iThe front air bags in this vehicle have been
designed to inflate in two stages. This allows
the air bag to have different rates of inflation that
are based on the rate of relevant vehicle deceler-
ation as assessed by the air bag control unit.
On the passenger side, the front air bag
deployment is additionally influenced by the
passenger’s weight category as identified by the
Occupant Classification System (OCS)
(
page 71).
The lighter the passenger side occupant, the
higher the vehicle deceleration rate required for
the second stage inflation of the air bag.
90 Safety and Security
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle.
The engine can be started by anyone with
a valid SmartKey that is left inside the
vehicle.
Activating
Remove the SmartKey from the starter
switch.
Deactivating
Switch on the ignition (page 37).
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
a door
the trunk lid
the hood
the glove box
the storage/telephone* compartment
in the center console
The alarm system will also be triggered
when
someone attempts to raise the vehicle
unlocking and opening the driver’s
door or the trunk with the mechanical
key
someone opens a door from the inside
someone opens the trunk lid with the
emergency release buttonArming the alarm system
The alarm system indicator lamp is located
in the locking switch in the center console.
1Alarm system indicator lamp
iStarting the engine will also deactivate the
immobilizer.
In case the engine cannot be started (yet the
vehicle’s battery is charged), the system is not
operational. Contact an authorized
Mercedes-Benz Center or call
1-800-FOR-MERCedes (in the USA), or
1-800-387-0100 (in Canada).
iThe alarm will stay on, even if the activating
element (e.g. a door) is immediately closed.
iIf the alarm stays on for more than
30 seconds, a call to the Response Center is
initiated automatically by the Tele Aid* system
(
page 262), provided Tele Aid* service was
subscribed to and properly activated, and that
necessary cellular service and GPS coverage are
available (
page 262).
94 Controls in detail
In the “Controls in detail” section you will
find detailed information on how to oper-
ate the equipment installed in your vehicle.
If you are already familiar with the basic
functions of your vehicle, this section will
be of particular interest to you.
To quickly familiarize yourself with the
basic functions of the vehicle, refer to the
“Getting started” section of this manual.
The corresponding page numbers are
given at the beginning of each segment.
For more information on unlocking and
locking, see (
page 36) and (page 59).
Locking and unlocking
SmartKey
Your vehicle comes supplied with two
SmartKeys, each with remote control and
a removable mechanical key.
The SmartKey provides an extended oper-
ating range. To prevent theft, however, it is
advisable to only unlock the vehicle when
you are in close proximity to it.
The SmartKey centrally locks and unlocks:
the doors
the trunk
the fuel filler flap
the glove box
the storage/telephone* compartment
under the armrest
SmartKey with remote control
1‹Lock button
2
ŠUnlock button for the trunk
(
page 99)
3Mechanical key locking tab
4ŒUnlock button
5Battery check lamp
6ÂPanic button (
page 83)
97 Controls in detail
Locking and unlocking
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that press-
ing buttonŒ only unlocks the driver’s
door, the storage/telephone* compart-
ment under the armrest, the glove box, and
the fuel filler flap.
Press and hold buttonsŒand‹
simultaneously for about 5 seconds
until battery check lamp5
(
page 94) flashes twice.
The SmartKey will then function as fol-
lows:
Unlocking driver’s door and fuel filler
flap
Press buttonŒ once.
All turn signal lamps flash once.
An acoustic warning sounds once.
The locking knob in the driver’s
door moves up.
The anti-theft alarm system is
disarmed.Global unlocking
Press buttonŒ twice.
All turn signal lamps flash once.
An acoustic warning sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system is
disarmed.
Global locking
Press button‹.
With all doors and the trunk closed:
All turn signal lamps flash three
times.
An acoustic warning sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.Restoring to factory setting
Press and hold buttonsŒand‹
simultaneously for about 5 seconds
until battery check lamp5
(
page 94) flashes twice.
Checking the batteries
Press button‹orŒ.
The battery check lamp (
page 94)
comes on briefly to indicate that the
SmartKey batteries are in order.
iIf the battery check lamp (page 94) does
not come on briefly during check, the SmartKey
batteries are discharged.
Replace the batteries (page 398).
You can obtain the required batteries at any
authorized Mercedes-Benz Center.
iIf the batteries are checked within signal
range of the vehicle, pressing
button‹orŒ will lock or unlock the
vehicle accordingly.
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
212 Controls in detail
Audio system
Operating the single CD player in the
audio system unit
Loading a CD
The single CD player in the audio system
unit has capacity for one CD. The CD slot
for loading the drive is located underneath
the soft keys.
Make sure the system is switched on.
Insert CD into CD slot. The label side of
the CD must face upwards.
The system automatically pulls the CD
into the CD slot. The audio CD begins
to play.Ejecting a CD
Make sure the system is switched on.
Press gbutton.
The system ejects the CD.
Remove CD0
will appear in the display.
Remove CD from slot.
With the CD removed,
NO CD will appear
in the display.Operational readiness of CD changer*
If a CD changer has been installed in the
vehicle, it can be operated from the front
control panel of the audio system.
The CD changer is located in the glove box.
1CD loading slot
2Magazine slot button
A magazine is integrated into the CD
changer as a fixed element. It holds a
maximum of six CDs.
The CD changer features six magazine slot
buttons2 for controlling the loading
procedure.
!If a CD is already loaded, it must be ejected
before inserting a new CD. Inserting a second
CD in the slot with another CD still loaded will
cause damage to the CD drive not covered by the
Mercedes-Benz Limited Warranty.
iIf a CD has been inserted incorrectly or
cannot be read,
WRONG CD0 will appear in the
display.
iIf you do not take the CD out of the CD slot
within approximately 15 seconds, the system
automatically pulls the CD back in and plays it.
If a CD is pulled back in, press gbutton, the
CD will then be ejected.