keyless MERCEDES-BENZ SLK55AMG 2012 R172 Owner's Guide

Never allow sparks, flames or smoking
materials near gasoline.
Turn off the engine before refueling.
Whenever you are around gasoline, avoid
inhaling fumes and any skin or clothing
contact.
Direct skin contact with fuels and the
inhalation of fuel vapors are damaging to your
health. G
WARNING
Overfilling of the fuel tank may create
pressure in the system which could cause a
gas discharge .This could cause the gasoline
to spray back out when removing the fuel
pump nozzle, which could cause personal
injury.
! Do not use diesel to refuel vehicles with a
gasoline engine. Even small amounts of the
wrong fuel result in damage to the fuel
system and engine.
! Do not switch on the ignition if you
accidentally refuel with the wrong fuel.
Otherwise, the fuel will enter the fuel lines.
Notify a qualified specialist workshop and
have the fuel tank and fuel lines drained
completely.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use a filter when refueling from a fuel can.
Otherwise, the fuel lines and/or injection
system could be blocked by particles from
the fuel can.
Further information on fuel and on fuel grades
can be found in the "Fuel" section
(Y page 325). Refueling
Fuel filler flap 0002
Fuel filler flap
0003 To insert the fuel filler cap
0023 Tire pressure table
0022 Fuel type
The fuel filler flap is unlocked or locked
automatically when you open or close the
vehicle with the SmartKey or with KEYLESS-
GO.
The position of the fuel filler cap 0010is
displayed in the instrumentc luster.The arrow
next to the filling pump indicates the side of
the vehicle.
Opening X
Switch off the engine.
X Remove the SmartKey from the ignition
lock.
X KEYLESS-GO: open the driver’s door.
This corresponds to SmartKey position 0:
"SmartKey removed".
The driver’s door can be closed again.
X Press the fuel filler flap in marked area 0002.
Fuel filler flap 0002swings up.
X Turn the fuel filler flap counter-clockwise
and remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap 0003. Refueling
147Driving and parking Z

Switching off the engine
Important safety notes G
WARNING
Do not turn off the engine before the vehicle
has come to a complete stop. With the engine
not running, there is no power assistance for
the brake and steering systems. In this case,
it is important to keep in mind that a
considerably higher degree of effort is
necessary to brake and steer the vehicle.
Vehicles with manual transmission X
Shift to either first gear or reverse gear R.
X Turn the SmartKey to position 0in the
ignition lock and remove it.
The immobilizer is activated.
X Apply the electric parking brake.
Vehicles with automatic transmission X
Apply the electric parking brake.
X Shift the transmission to position P.
Using the SmartKey
X Turn the SmartKey to position 0in the
ignition lock and remove it.
The immobilizer is activated.
i The SmartKey can only be removed if the
transmission is in position P.
Using KEYLESS-GO
X Press the Start/Stop button (Y page 131).
The engine stops and all the indicator
lamps in the instrumen tcluster go out.
i When the driver's door is closed, this
corresponds to SmartKey position 1.When
the driver's door is open, it corresponds to
SmartKey position 0or "SmartKey
removed".
If you attempt to switch off the engine while
the selector lever is in a position other than
P, a message appears in the multifunction
display and you hear a tone. Electric parking brake
General information i
The electric parking brake performs a
function test at regular intervals while the
engine is switched off. The sounds that can
be heard while this is occurring are normal. G
WARNING
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. Children could
release the parking brake and/or shift the
automatic transmission out of park position
P, either of which could result in an accident
and/or serious personal injury. Applying/releasing manually
X
To apply: press handle 0002.
The red 0005(USA only) or 000A(Canada
only) indicator lamp in the instrument
cluster lights up.
i The electric parking brake can also be
applied when the SmartKey is removed.
X To release: switch on the ignition.
X Pull handle 0002.
The red 0005(USA only) or 000A(Canada
only) indicator lamp in the instrument
cluster goes out.
i The electric parking brake cannot be
released unless the SmartKey is in position
1 in the ignition lock or if the ignition has 150
ParkingDriving and parking

Display messages Possible causes/consequences and
0001 Solutions
The display message is only shown while the vehicle is in motion.
The yellow
000Awarning lamp lights up and the red 0005(USA
only)/ 000A(Canada only) indicato rlamp flashes.
It is no tpossible to apply the electric parking brake manually.
X Vehicles with manual transmission: engage first gear.
X Vehicles with automatic transmission: shift the transmission
to P.
X Visit a qualified specialist workshop. 0005(USA
only)000A(Canada
only)
Turn On the
Ignition to
Release the
Parking Brake The red
0005(USA only)/000A (Canada only) indicator lamp lights
up.
You attempted to release the electric parking brake while the
ignition was switched off.
X SmartKey: turn the SmartKey to position 1in the ignition lock.
X KEYLESS-GO: switch on the ignition. 000D(USA
only)0006(Canada
only)
Brake Immediately A malfunction has occurred while the HOLD function or
DISTRONIC PLUS is active.
At
one may also sound at regular intervals. If you attempt to lock
the vehicle, the tone becomes louder.
You cannot start the engine.
X Paying attention to the traffic situation, immediately depress the
brake pedal firmly and hold until the display message
disappears.
X Prevent the vehicle from rolling away before you leave it
(Y page 276).
You can restart the engine. 000D(USA
only)0006(Canada
only)
Check Brake Fluid
Level G
Risk of accident
There is not enough brake fluid in the brake fluid reservoir.
Additionally, the red 000D(USA only)/ 0006(Canada only)
warning lamp lights up in the instrument cluster and a warning
tone sounds.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Apply the electric parking brake.
X Consult a qualified specialist workshop.
X Do not add brake fluid. This does not correct the malfunction. 206
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
0001 Solutions
The roo
fhas been opened and closed several times in arow. The
roof drive has been switched off automatically for safety reasons.
You can open and close the roof again after approximately
10 minutes.
X Switch off the ignition and turn it back on.
X Repeat the opening or closing procedure (Y page 83).0018
Check Washer Fluid The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
X
Add washer fluid (Y page 263).SmartKey
Display messages Possible causes/consequences and
0001 Solutions
000A
Key Does Not
Belong to Vehicle You have put the wrong SmartKey in the ignition lock.
X
Use the correct SmartKey. 000A
Take
Your Key from
Ignition The SmartKey is in the ignition lock.
X
Remove the SmartKey. 000A
Obtain a New Key The SmartKey needs to be replaced.
X
Visit a qualified specialist workshop. 000A
Replace
Key Battery The batteries of the KEYLESS-GO key are discharged.
X
Change the batteries (Y page 71).000A
Don't Forget Your
Key The display message is shown for a maximum of 60 seconds and
is only a reminder.
You have opened the driver's door with the engine switched off.
The KEYLESS-GO key is not in the ignition lock.
X
Remember to take the KEYLESS-GO key with you when you
leave the vehicle. 226
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
0001 Solutions
000A
Key Not
Detected (red display
message) The KEYLESS-GO key is not in the vehicle.
Aw
arning tone also sounds.
If the engine is switched off, you can no longer loc kthe vehicle
centrally or start the engine.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Apply the electric parking brake.
X Locate the KEYLESS-GO key. The KEYLESS-GO key is not detected while the engine is running
because there is interference from a strong source of radio waves.
Aw
arning tone also sounds.
X Pull ove rand stop the vehicle safely as soo nas possible, paying
attention to road and traffic conditions.
X Apply the electric parking brake.
X Operate the vehicle with the SmartKey in the ignition lock. 000A
Key Not
Detected (White
display message) The KEYLESS-GO key cannot be detected at present.
X
Change the location of the key with the KEYLESS-GO functions
in the vehicle.
If the KEYLESS-GO key is still not detected:
X Operate the vehicle with the SmartKey in the ignition lock. 000A
Key Detect'd In
Vehicle The KEYLESS-GO key has been detected inside the vehicle during
locking.
X
Remove the KEYLESS-GO key from the vehicle. 000A
Remove 'Start'
Button and Insert
Key KEYLESS-GO is temporarily malfunctioning or is defective. A
warning tone also sounds.
X
Insert the SmartKey into the ignition lock and turn it to the
desired position.
X Visit a qualified specialist workshop. 000A
Close Doors to
Lock Vehicle At least one door is open.
Awarning tone also sounds.
X Close all doors and loc kthe vehicle again. Display messages
227On-board computer and displays Z

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops (Y page 23).Engine compartment
Hood
Opening the hood G
WARNING
Do not pull the release lever while the vehicle
is in motion. Otherwise, the hood could be
forced open by passing air flow.
This could cause the hood to come loose and
injure you and/o rothers. G
WARNING
There is a ris kofinjury if the hood is open,
even if the engine is not running.
Some engine components can become very
hot.
To avoid the ris kofburns, only touch those
components described in th eOperator's
Manual and observe the relevant safety notes. G
WARNING
To avoid injury, stay clear of moving parts
when the hood is open and the engine is
running.
The radiator fan may continue to run for
approximately 30seconds or may even restart
after the engine has been switched off. For
this reason, you must not reach into the fan
rotation area. G
WARNING
The engine is equipped with a transistorized
ignition system. Because of the high voltage,
it is dangerous to touch any components
(ignition coils, spark plug sockets, diagnostic
socket) of the ignition system:
R with the engine running
R while starting the engine
R when the ignition is switched on and the
engine is turned manually
X Make sure that the windshield wipers are
switched off. G
WARNING
The windshield wipers and wiper linkage
could be set in motion.
When the hood is open, you or others could
be injured by the wiper linkage.
Make sure that the windshield wipers are
switched off. Remove the SmartKey or make
sure that no ignition position has been
selected with KEYLESS-GO. All indicator
lamps must be off in the instrument panel. X
Pull release lever 0002for the hood.
The hood is released.
! Make sure that the windshield wipers are
not folded away from the windshield. You
could otherwise damage the windshield
wipers or the hood. 260
Engine compartmentMaintenance and care

R
using a rag, slowly tur nthe cap
approximately 1
/ 2 turn to relieve excess
pressure. If opened immediately, scalding
hot fluid and steam will be blown out under
pressure.
R do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. X
Park the vehicle on a level surface.
Only check the coolant level when the
vehicle is on a level surface and the engine
has cooled down.
X Turn the SmartKey to position 2in the
ignition lock (Y page 131).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 131).
X Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
X Turn the SmartKey to position
0(Y page 131) in the ignition lock.
X Slowly turn cap 0003half a turn counter-
clockwise to allow excess pressure to
escape.
X Turn cap 0003further counter-clockwise and
remove it.
If the coolant is at the level of marker bar
0023 in the filler neck when cold, there is
enough coolant in coolant expansion
tank 0002.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar 0023in the filler neck when warm, there is enough coolant
in coolant expansion tank
0002.
X If necessary, add coolant that has been
tested and approved by Mercedes-Benz.
X Replace cap 0003and turn it clockwise as far
as it will go.
For further information on coolant, see
(Y page 327).
Adding washer fluid to the windshield
washer system/headlam pcleaning
system G
WARNING
Washer solvent/antifreeze is highly
flammable. Do not spill washer solvent/
antifreeze on hot engin eparts, because it may
ignite and burn .You could be seriously
burned. X
To open: pull cap0002upwards by the tab.
X Add the premixed washer fluid.
X To close: press cap 0002onto the filler neck
until it engages.
The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system.
Further information on windshield washer
fluid/antifreeze (Y page 328).
Brake fluid level !
If the brake fluid level in the brake fluid
reservoir has fallen to the MIN mark or
below, check the brake system Engine compartment
263Maintenance and care Z

Cleaning the windows
G
WARNING
Before cleaning the windshield or wiper
blades, switch off the windshield wipers and
remove the SmartKey from the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop butto nrepeatedly until all
indicator lamps in the instrument cluster have
gone out. The windshield wipers could
otherwise move and injure you. G
WARNING
Do not clean the rear window with the
reatractable hardtop (vario-roof) in a position
other than the fully raised and closed position.
Otherwise, the retractable hardtop may move
unexpectedly which may result in personal
injury to you or others.
X Clean the inside and outside of the
windows with a damp cloth and a cleaning
agent that is recommended and approved
by Mercedes-Benz.
! Do not use dry cloths, abrasive products,
solvents or cleaning agents containing
solvents to clean the inside of the windows.
Do not touch the insides of the windows
with hard objects, e.g. an ice scraper or
ring. There is otherwise a risk of damaging
the windows.
! Clean the water drainage channels of the
windshield and the rear window at regular
intervals. Deposits such as leaves, petals
and pollen may under certain
circumstances prevent water from draining
away .This can lead to corrosion damage
and damage to electronic components.
Cleaning the wiper blades G
WARNING
Before cleaning the windshield or wiper
blades, switch off the windshield wipers and
remove the SmartKey from the ignition lock.
On vehicles with KEYLESS-GO, press the Start/Stop button repeatedly until all
indicator lamps in the instrumentc
luster have
gone out. The windshield wipers could
otherwise move and injure you.
! Do not pull the wiper blade. Otherwise,
the wiper blade could be damaged.
! Do not clean wiper blades too often and
do not rub the mtoo hard. Otherwise, the
graphite coating could be damaged. This
could cause wiper noise.
X Fold the wiper arms away from the
windshield.
X Carefully clean the wiper blades with a
damp cloth.
X Fold the windshield wipers back again
before switching on the ignition.
! Hold the wiper arm securely when folding
back. The windshield could be damaged if
the wiper arm smacks against it suddenly.
Cleaning the exterior lighting !
Only use cleaning agents or cleaning
cloths which are suitable for plastic light
lenses. Unsuitable cleaning agents or
cleaning cloths could scratch or damage
the plastic light lenses.
X Clean the plastic lenses of the exterior
lighting using a wet sponge and a mild
cleaning agent, e.g. Mercedes-Benz car
shampoo. Or clean the exterior lighting
with cleaning cloths.
Cleaning the mirror turns ignals !
Only use cleaning agents or cleaning
cloths that are suitable for plastic lenses.
Unsuitable cleaning agents or cleaning
cloths could scratch or damage the plastic
lenses of the mirror turn signals.
X Clean the plastic lenses of the mirror turn
signals using a wet sponge and a mild
cleaning agent, e.g. Mercedes-Ben zcar 268
CareMaintenance and care

X
Apply the electri cparking brake manually
(Y page 150).
X Bring the fron twheels into the straight-
ahead position.
X Move the selector lever to position P.
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the SmartKey from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver's door.
The on-board electronics have status 0,
which is the same as the SmartKey having
been removed.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 131).
X All occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
X Make sure that no one is near the danger
area while a wheel is being changed.
Anyone who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Get out of the vehicle. Pay attention to
traffic conditions when doing so.
X Close the driver's door. Changing
awheel and mounting the
spare wheel
Preparing the vehicle When using a different size spare wheel or
emergency spare wheel, do not exceed the
maximum road speed of 50 mph (80 km/h)
G
WARNING
The wheel or tire size as well as the tire type
of the spare wheel or emergency spare wheel
and the wheel to be replaced may differ.
Mounting an emergency spare wheel may
severely impair the driving characteristics.
There is a risk of an accident. To avoid hazardous situations:
R
adapt you rdriving style accordingly and
drive carefully.
R never install more than one spare wheel or
emergency spare wheel that differs in size.
R only use a spare wheel or emergency spare
wheel of a different size briefly.
R do not switch ESP ®
off.
R have a spare wheel or emergency spare
wheel of a different size replaced at the
nearest qualified specialist workshop.
Observe that the wheel and tire dimensions
as well as the tire type must be correct.
i Vehicles withou taspare wheel or
emergency spare wheel are not equipped
with a tire-change tool kit at the factory. For
more information on which tools are
required to perform a wheel change on your
vehicle, e.g. wheel chock, lug wrench or
alignment bolt, consult an authorized
Mercedes-Benz Center.
X Prepare the vehicle as described
(Y page 275).
X Remove the following items (depending on
the vehicle's equipment) from the stowage
well under the trunk floor:
R
emergency spare wheel
R lug wrench
R folding wheel chock
R jack
R alignment bolt
R tire inflation compressor
X Secure the vehicle to prevent it from rolling
away.
Securing the vehicle to prevent it from
rolling away If your vehicle is equipped with a wheel chock,
it can be found in the vehicle tool kit
(Y
page 274).
The folding wheel chock is an additional
securing measure to prevent the vehicle from 276
Flat tireBreakdown assistance

H
Environmental note Batteries contain dangerous
substances. It is agains
tthe
law to dispose of them with
the household rubbish. They
must be collected separately
and recycled to protect the
environment. Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to a qualified
specialist workshop or a
special collection point for
used batteries.
G
WARNING
Failure to follow these instructions can result
in severe injury or death.
Never lean over batteries while connecting.
You might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water and seek
medical help if necessary.
Ab attery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc. G
WARNING
Do no tplace any metal objects on the battery
as this could result in a shor tcircuit.
Use leak-proof batteries only to avoid the risk
of acid burns in the event of an accident.
Take care that you do not become statically
charged, e.g. by wearin gsynthetic clothing or
rubbing against textiles .For this reason, you
also should not pull or push the battery over
carpets or other synthetic materials.
Never touch the battery first. First, touch the
outside body of the vehicle in order to release
any possible electrostatic charges. Do not rub the battery with rags or cloths. The
battery could explode if touched due to
electrostatic charge or due to spark
formation.
! Before working on the battery, e.g.
loosening the battery terminals, switch off
the engine and remove the SmartKey from
the ignition. On vehicles with KEYLESS-GO,
make sure that the ignition is switched off.
Check that all the indicator lamps in the
instrument cluster are off. You may
otherwise destroy electronic components,
such as the alternator.
! Like other batteries, the vehicle battery
may discharge over time if you do not use
the vehicle. In this case, have the battery
disconnected at a qualified specialist
workshop. You can also charge the battery
with a charger recommended by Mercedes-
Benz.C ontact a qualified specialist
workshop for further information.
The battery and the cover of the positive
terminal clamp must be installed securely
during operation.
i Remove the SmartKey if you park the
vehicle and do not require any electrical
consumers. The vehicle will then use very
little energy, thus conserving battery
power.
Mercedes-Benz recommends that you do not
carry out work on batteries yourself, e.g.
removing or charging. Have this work
performed at a qualified specialist workshop. Charging the battery
G
WARNING
Never charge a battery still installed in the
vehicle unless a battery charger unit approved
by Mercedes-Benz is being used. Gases may
escape during charging and cause explosions
that may result in paint damage, corrosion or
personal injury. Battery
283Breakdown assistance
Z