2013 MERCEDES-BENZ SLK-Class key battery

or
X
Lock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
X To unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key X
Push release catch 0003in the direction of
the arrow and at the same time, remove
mechanical key 0004from the SmartKey. SmartKey battery
Important safety notes G
WARNING
Batteries contain toxic and caustic
substances. For this reason, keep batteries
out of the reach of children.
If a battery has been swallowed, seek medical
help immediately. G
WARNING
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. Observe
government disposal guidelines. California
residents, see www.dtsc.ca.gov/ HazardousWaste/Perchlorate/
index.cfm.
Mercedes-Benz recommends that you have
the batteries replaced at a qualified specialist
workshop.
Checking the battery X
Press the 000For0010 button.
The battery is working properly if battery
check lamp 0003lights up briefly.
The battery is discharged if battery check
lamp 0003does not light up briefly.
X Changing the battery (Y page 73)
i If the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the 000For0010 button:
R locks or
R unlocks the vehicle
i You can get a battery in any qualified
specialist workshop.
Replacing the battery You require a CR 2025 3 V cell battery.
X
Take the mechanical key out of the
SmartKey (Y page 72). SmartKey
73Opening/closing Z

X
Press mechanical key 0004into the opening
in the key in the direction of the arrow until
battery compartment cover 0003opens.
When doing so, do not hold battery
compartment cover 0003shut.
X Remove battery compartment cover 0003.X
Repeatedly tap the SmartKey against your
palm until battery 0024falls out.
X Inser tthe new battery with the positive
terminal facing upwards. Use a lint-free
cloth to do so.
X Make sure that the surface of the battery is
free from lint, grease and all other forms of
contamination.
X Insert the front tabs of battery
compartment cover 0003into the housing
and then press to close it.
X Insert mechanical key 0004into the
SmartKey.
X Check the function of all SmartKey buttons
on the vehicle. 74
SmartKeyOpening/closing

Problems with the SmartKey
Problem Possible causes/consequences and
0001 Solutions
You cannot lock or
unlock the vehicle
using the SmartKey. The SmartKey battery is discharged or nearly discharged.
X
Try again to lock/unlock the vehicle using the remote control
function of the SmartKey. Point the tip of the SmartKey at the
driver's door handle from close range and press the 0010or
000F button.
If this does not work:
X Check the SmartKey battery (Y page 73) and replace it if
necessary (Y page 73).
X Lock (Y page 78) or unlock (Y page 78) the vehicle using
the mechanical key. The SmartKey is faulty.
X
Unlock (Y page 78) or lock (Y page 78) the vehicle using the
mechanical key.
X Have the SmartKey checked at a qualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS-GO. There is interference from a powerful source of radio waves.
X Lock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the 0010or000F button. There is a malfunction with KEYLESS-GO.
X Lock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the 0010or000F button.
X Have KEYLESS-GO checked at a qualified specialist workshop.
If this does not work:
X Check the SmartKey battery (Y page 73) and replace it if
necessary (Y page 73).
X Lock (Y page 78) or unlock (Y page 78) the vehicle using
the mechanical key. You have lost a
SmartKey. X
Have the SmartKey deactivated at a qualified specialist
workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. SmartKey
75Opening/closing Z

Problem Possible causes/consequences and
0001 Solutions
The engine cannot 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 298).
or
X Jump-start the vehicle (Y page 299).
or
X Consult a qualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle. Ad
oor is open. Therefore, the SmartKey cannot be detected as
easily.
X Close the door 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
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system, and do not give them access
to an unlocked vehicle. Achild's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function. If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and a child could be burned on these
parts. G
WARNING
Do not carry heavy or hard objects in the
passenger compartmentu nless they are
firmly secured in place.
Unsecured or improperly positioned cargo
increases a child's risk of injury in the event
of:
R strong braking maneuvers
R sudden changes of direction
R an accident 76
DoorsOpening/closing

Unlocking and opening doors from
the inside
! The side windows will not open/close if
the battery is discharged or if the side
windows have iced up. It will then not be
possible to close the door. Do not attempt
to force the door closed. You could
otherwise damage the door or the side
window.
You can open a door from inside the vehicle
even if it has been locked.
If the vehicle was previously locked with the
SmartKey or with KEYLESS-GO, opening the
vehicle from the inside will activate the anti-
theft alarm system. Switch off the alarm
(Y page 67). X
Pull door handle 0004.
If the door is locked, locking knob 0003pops
up. The door is unlocked and can be
opened.
i When a door is opened, the side window
on that side opens slightly. When the door
is closed, the side window closes again. Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside. For example, you can unlock
the front-passenger door from the inside or
lock the vehicle before you pull away. X
To unlock: press button 0003.
X To lock: press button 0004.
If the front-passenger door is closed, the
vehicle locks.
The central locking/unlocking button does
not lock or unlock the fuel filler flap or the
stowage compartments, such as the glove
box.
You cannot unlock the vehicle centrally from
the inside if the vehicle has been locked with
the SmartKey or KEYLESS-GO.
You can open a door from inside the vehicle
even if it has been locked.
If the vehicle has been locked using the
locking button for the central locking, or has
been locked automatically, and a door is
opened from the inside:
R the vehicle will be fully unlocked if it had
previously been fully unlocked
R only the door which has been opened form
the inside is unlocked if only the driver's
door had been previously unlocked Doors
77Opening/closing Z

The trunk lid emergency release does not
unlock the trunk lid if the battery is
disconnected or discharged.
Trunk lid emergency release light:
R
emergency release button 0003flashes for
30 minutes after the trunk lid is opened
R emergency release button 0003flashes for
60 minutes after the trunk lid is closed Side windows
Important safety notes
G
WARNING
When opening or closing the door windows,
make sure that there is no danger of anyone
being harmed by the opening/closing
procedure.
The frontd oor windows are equipped with
automatic operation and the anti-entrapment
feature. If in automatic mode a front door
window encounters an obstruction that
blocks its path, the anti-entrapment feature
will stop the door window and open it slightly.
The door windows operate differently when
the switch is pulled. See the "Problems with
door windows" section for more details.
The closing of the door windows can be
immediately halted by releasing the switch or,
if the switch was pulled past the resistance
point and released, by pressing or pulling the
respective switch.
If a door window encounters an obstruction
that blocks its path in a circumstance where
you are closing the windows by pressing and
holding 000Fbutton on the SmartKey or by
pressing and holding the lock button (vehicles
with KEYLESS-GO) on an outside door handle,
the anti-entrapment feature will not operate. Opening and closing the side
windows in the front
The switches for the front side windows are
located on the driver's door. There is also a switch for the front-passenger side window
on the front-passenger door.
The switches on the driver's door take
precedence.
0003
Left
0004 Right
X Turn the SmartKey to position 1or 2in the
ignition lock.
i You can continue to operate the side
windows after you switch off the engine.
This function is available for up to five
minutes or until the driver's or front-
passenger door is opened.
X To open: press the corresponding switch.
X To close: pull the corresponding switch.
X Automatic operation: press or pull the
corresponding switch beyond the point of
resistance.
The side window opens or closes fully.
X To interrupt automatic operation: press
or pull the corresponding switch again. Opening and closing all side windows
Using the switch on the center console You can use the button on the center console
to close all side windows simultaneously.
X
Open the cover in the lower center console.
The switch for all side windows is under the
cover. 82
Side windowsOpening/closing

Adjusting the head restraints
Adjusting the head restraints manually X
To raise/lower: push the head restraint
upwards or pull it down into the desired
position. Adjusting the 4-way lumbar support
0003
To raise the backrest contour
0004 To soften the backrest contour
0024 To lower the backrest contour
0023 To harden the backrest contour
You can adjust the contour of the seat
backrests individually to provide optimum
support for your back. Switching the sea
theating on/off
Activating/deactivating 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 five
minutes.
The system automatically switches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximatel y20 minutes after it is set to
level 1.
X Make sure that the SmartKey is in position
1or 2in the ignition lock.
X To switch on: press button0003repeatedly
until the desired heating level is set.
X To switch off: press button0003repeatedly
until all the indicator lamps go out.
Problems with the seat heating The sea
theating has switched off
prematurely 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
defroster or interior lighting.
X Once the battery is sufficiently charged,
switch on the seat heating again. Seats
97Seats, steering wheel and mirrors Z

AIRSCARF
Activating/deactivating G
WARNING
Very hot air can flow out of the AIRSCARF
vents in the head restraints when AIRSCARF
is in operation .This can cause burns on
unprotected skin near the AIRSCARF vents.
Lower the heating output in good time, when
necessary. The AIRSCARF function warms the head and
neck area of vehicle occupants with warm air.
The warm air flows out of the holes in the head
restraints.
The three red indicator lamps in the button
indicate the heating level you have selected.
X
Make sure that the SmartKey is in
position 2in the ignition lock.
X To switch on: press button0003.
Three red indicator lamps in the button light
up. The blower starts up after a preheating
phase of seven seconds.
X Press button 0003repeatedly until the
desired heating level is set.
X To switch off: press button0003repeatedly
until all the indicator lamps go out.
i The blower continues running for seven
seconds to cool down the heating
elements.
i If the battery voltage is too low, AIRSCARF
may switch off. Problems with AIRSCARF AIRSCARF has switched off prematurely or
will not switch 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
defroster or interior lighting.
X Switch on AIRSCARF again. Steering wheel
Important safety notes
G
WARNING
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving
could cause the driver to lose control of the
vehicle.
The electrical steering wheel adjustment
feature can be operated at any time.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Achild's unsupervised access to a
vehicle could result in an accident and/or
serious personal injury. Adjusting the steering wheel
manually
0003
Release lever
0004 To adjust the steering wheel height
0024 To adjust the steering wheel position
(fore-and-aft adjustment) 98
Steering wheelSeats, steering wheel and mirrors