2012 MERCEDES-BENZ SLK-CLASS ROADSTER key battery

Pulling away ................................... 134
Releasing the parking lock
manually ........................................ 146
Selector lever ................................ 140
Shift ranges ................................... 143
Starting the engine ........................133
Steering wheel paddle shifters ......142
Transmission position display ........140
Transmission positions ..................141
Automatic transmission
emergency mode ............................... 146
B
Back support see Lumbar support
Backup lamp
Changing bulbs .............................. 112
Display message ............................ 215
BAS (Brake Assist System) ................. 57
Basic settings see Settings
BAS PLUS (Brake Assist System
PLUS) .................................................... 57
Battery (SmartKey) Checking .......................................... 71
Important safety notes ....................71
Replacing ......................................... 71
Battery (vehicle)
Charging ........................................ 283
Display message ............................ 218
Important safety notes ..................282
Jump starting ................................. 285
Belt
see Seat belts
Bottle holder ...................................... 246
Brake Assist System see BAS (Brake Assist System)
Brake fluid
Display message ............................ 206
Notes ............................................. 327
Brake fluid level ................................ 263
Brake lamps Display message ............................ 214
Brakes
ABS .................................................. 56
BAS .................................................. 57
BAS PLUS ........................................ 57
Brake fluid (notes) .........................327
Display message ............................ 200
Driving tips .................................... 153
High-performance brake system ....154
Important safety notes ..................153
Maintenance .................................. 154
Parking brake ................................ 150
Warning lamp ................................. 229
Breakdown
see Flat tire
see Towing away/tow-starting
Bulbs
see Changing bulbs
C
California Important notice for retail
customers and lessees ....................21
Calling up a malfunction
see Display messages
Capacities
see Technical data
Car
see Vehicle
Care
Carpets .......................................... 271
Car wash ........................................ 265
Display ........................................... 269
Exterior lights ................................ 268
Gear or selector lever ....................270
Interior ........................................... 269
Matte finish ................................... 267
Notes ............................................. 265
Paint .............................................. 267
Plastic trim .................................... 269
Power washer ................................ 266
Roof lining ...................................... 271
Seat belt ........................................ 270
Seat cover ..................................... 270
Sensors ......................................... 269
Steering wheel ............................... 270
Tail pipes ....................................... 269
Trim pieces .................................... 270
Washing by hand ........................... 266
Wheels ........................................... 266
Windows ........................................ 268
Index5

Notes ............................................. 264
Service messages ..........................264
Service menu (on-board computer) . 191
Service products Brake fluid ..................................... 327
Coolant (engine) ............................ 327
Engine oil ....................................... 326
Fuel ................................................ 325
Important safety notes ..................324
Washer fluid ................................... 328
Settings
Factory (on-board computer) .........195
On-board computer .......................191
Setting the air distribution ............... 123
Setting the airflow ............................ 123
SETUP (on-board computer) ............. 196
Side impact air bag ............................. 40
Side marker lamp (display
message) ............................................ 215
Side windows Convenience closing feature ............81
Important safety information ...........80
Opening/closing (all) .......................80
Opening/closing (front) ...................80
Problem (malfunction) .....................82
Resetting ......................................... 82
SmartKey
Changing the battery .......................71
Changing the programming .............70
Checking the battery .......................71
Convenience opening feature ..........81
Display message ............................ 226
Door central locking/unlocking .......68
Important safety notes ....................68
Loss ................................................. 73
Mechanical key ................................ 70
Opening/closing the roof ................84
Positions (ignition lock) .................131
Problem (malfunction) .....................73
Starting the engine ........................133
Snow chains ...................................... 297
Sockets Center console .............................. 248
Points to observe before use .........247
Under the armrest .........................248
Spare wheel
Notes/data .................................... 318Storage location ............................ 274
Stowing .......................................... 275
see Emergency spare wheel
Specialist workshop ............................ 23
Speed, controlling see Cruise control
Speedometer
Activating/deactivating the
additional speedometer .................192
Digital ............................................ 186
In the Instrument cluster .................27
Segments ...................................... 181
Selecting the unit of
measurement ................................ 191
see Instrument cluster
SPORT handling mode
Activating/deactivating (AMG
vehicles) .......................................... 60
Warning lamp ................................. 232
SRS (Supplemental Restraint
System) Display message ............................ 208
Introduction ..................................... 36
Warning lamp ................................. 233
Warning lamp (function) ................... 36
Standing lamps
Changing bulbs .............................. 112
Display message ............................ 215
Switching on/off ........................... 104
Starting (engine) ................................ 132
Station see Radio
Steering (display message) .............. 225
Steering wheel Adjusting (electrically) .....................97
Adjusting (manually) ........................97
Button overview ............................... 29
Buttons (on-board
computer) ...................................... 181
Cleaning ......................................... 270
Important safety notes ....................96
Paddle shifters ............................... 142
Storing settings (memory
function) ........................................ 100
Steering wheel paddle shifters ........ 142
Stopwatch (RACETIMER) ................... 196
Stowage areas ................................... 242Index15

Trunk partitionDisplay message ............................ 225
General notes .................................. 85
Opening/closing .............................. 85
Turn signals
Changing bulbs (front) ...................112
Display message ............................ 213
Switching on/off ........................... 107
Type identification plate
see Vehicle identification plate
U
Unlocking Emergency unlocking .......................76
From inside the vehicle (central
unlocking button) ............................. 75
V
Vanity mirror (in the sun visor) ........ 246
Vehicle Correct use ...................................... 23
Data acquisition ............................... 24
Display message ............................ 224
Emergency unlocking .......................76
Equipment ....................................... 20
Individual settings ..........................191
Limited Warranty ............................. 24
Loading .......................................... 304
Locking (in an emergency) ...............76
Locking (SmartKey) .......................... 68
Lowering ........................................ 281
Maintenance .................................... 21
Parking for a long period ................ 151
Pulling away ................................... 133
Raising ........................................... 277
Reporting problems .........................23
Towing away .................................. 287
Tow-starting ................................... 287
Transporting .................................. 289
Unlocking (in an emergency) ...........76
Unlocking (SmartKey) ......................68
Vehicle data ................................... 329
Vehicle battery
see Battery (vehicle)
Vehicle data ....................................... 329
Vehicle dimensions ........................... 329
Vehicle emergency locking ................ 76
Vehicle identification number see VIN
Vehicle identification plate .............. 323
Vehicle tool kit .................................. 274
Video (DVD) ........................................ 189
VIN ...................................................... 323
W
Warning and indicator lamps ABS ................................................ 230
Brakes ........................................... 229
Check Engine ................................. 234
Coolant .......................................... 235
Distance warning ........................... 237
DISTRONIC PLUS ........................... 237
ESP ®
.............................................. 231
ESP ®
OFF ....................................... 232
Fuel tank ........................................ 234
Overview .......................................... 28
PASSENGER AIR BAG OFF
indicator lamp .................................. 42
Reserve fuel ................................... 234
Seat belt ........................................ 228
SPORT handling mode ...................232
SRS ................................................ 233
Tire pressure monitor ....................238
Warranty ............................................ 323
Washer fluid Display message ............................ 226
Wheel bolt tightening torque ........... 281
Wheel chock ...................................... 276
Wheels Changing a wheel .......................... 276
Checking ........................................ 295
Cleaning ......................................... 266
Important safety notes ..................294
Interchanging/changing ................315
Mounting a new wheel ...................279
Removing a wheel ..........................279
Storing ........................................... 316
Tightening torque ........................... 281
Wheel size/tire size .......................316
Windows
Cleaning ......................................... 268
see Side windows
18Index

Special seat belt retractor
The seat belt on the front-passenger side is
equipped with a special seat belt retractor.
When activated, the special seat belt
retractor ensures the seat belt will not
slacken once the child restraint system has
been secured.
Installing a child restraint system:
XAlways comply with the manufacturer's
installation instructions.XPull the seat belt smoothly from the inertia
reel.XEngage the seat belt tongue in the belt
buckle.
Activating the special seat belt retractor:
XPull the seat belt out fully and let the inertia
reel retract it again.
While the seat belt is retracting, you should
hear a ratcheting sound. The special seat
belt retractor is enabled.XPush down on the child restraint system to
take up any slack.
Removing a child restraint system/
deactivating the special seat belt retractor:
XAlways comply with the manufacturer's
installation instructions.XPress the seat belt release button and
guide the belt tongue to the belt outlet.
The special seat belt retractor is
deactivated.GWARNING
Never release the seat belt buckle while the
vehicle is in motion, since the special seat belt
retractor will be deactivated.
Panic alarmX To activate: press ! button : for at
least one second.
An alarm sounds and the exterior lighting
flashes.XTo deactivate: press ! button :
again.
or
XInsert the SmartKey into the ignition lock.
or
XPress the KEYLESS-GO Start/Stop button.
The KEYLESS-GO key must be in the
vehicle.
i USA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
The product label with FCC ID and IC
certification number can be found in the
battery case of the SmartKey.
i Canada only:
This device complies with RSS-Gen of
Industry Canada. Operation is subject to
the following two conditions:
Panic alarm55SafetyZ

1. This device may not cause interference,
and
2. this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
The product label with FCC ID and IC
certification number can be found in the
battery case of the SmartKey.
Driving safety systems
Driving safety systems overview
In this section, you will find information about
the following driving safety systems:
R ABS ( Anti-lock Braking System)
R BAS ( Brake Assist System)
R BAS PLUS ( Brake Assist System Plus)
R ESP ®
(E lectronic Stability Program)
R EBD ( Electronic Brake force Distribution)
R ADAPTIVE BRAKE
R PRE-SAFE ®
Brake
Important safety notes
GWARNING
The following factors increase the risk of
accidents:
R Excessive speed, especially in turns
R Wet and slippery road surfaces
R Following another vehicle too closely
The driving safety systems described in this
section cannot reduce these risks or prevent
the natural laws of physics from acting on the
vehicle. They cannot increase braking or
steering efficiency beyond that afforded by
the condition of the vehicle brakes and tires
or the traction afforded.
Only a safe, attentive, and skillful driver can
prevent accidents.
The capabilities of a vehicle equipped with the
driving safety systems described in this
section must never be exploited in a reckless
or dangerous manner which could jeopardize
the user's safety or the safety of others.
Always adjust your driving style to the
prevailing road and weather conditions and
keep a safe distance to other road users and
objects on the street.
If a driving system malfunctions, other driving
safety systems may also switch off. Observe
indicator and warning lamps that may come
on as well as messages in the multifunction
display that may appear.
i Please note that the driving safety
systems described only work as effectively
as possible when there is adequate contact
between the tires and the road surface. Pay
particular attention to the information
regarding tires, recommended minimum
tire tread depths etc. in the "Wheels and
tires" section ( Y page 294).
In wintry driving conditions, always use
winter tires (M+S tires) and if necessary,
snow chains. Only in this way will the
driving safety systems described in this
section work as effectively as possible.
ABS (Anti-lock Braking System)
Important safety notes
i Observe the "Important safety notes"
section ( Y page 56).
ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the
vehicle when braking.
ABS works from a speed of about 5 mph
( 8 km/h) upwards, regardless of road-surface
conditions. ABS works on slippery surfaces,
even if you only brake gently.
56Driving safety systemsSafety

GWARNING
Even if PRE-SAFE®
Brake slows the vehicle
before an imminent rear-end collision, the
system cannot avert a collision without the
intervention of the driver. There is a risk of an
accident. Brake according to the situation or
take evasive action. Delayed intervention by
the driver can lead to an accident.
GWARNING
PRE-SAFE ®
Brake cannot always detect
complex traffic situations properly.
In these cases, PRE-SAFE(R) Brake may:
R give an unnecessary warning and then
brake the vehicle
R neither give a warning nor intervene
There is a risk of an accident. Always pay
particular attention to the traffic situation and
be ready to brake, especially if PRE-SAFE(R)
Brake warns you. Terminate the intervention
in a non-critical driving situation.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else
covering the sensors
R snow or heavy rain
R interference by other radar sources
R the possibility of strong radar reflections,
for example in parking garages
R a narrow vehicle traveling in front, e.g. a
motorbike
R a vehicle traveling in front on a different line
GWARNING
PRE-SAFE ®
Brake does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R in curves
As a result, PRE-SAFE ®
Brake cannot
intervene in critical situations. There is a risk
of an accident. Always pay careful attention
to the traffic situation and be ready to brake.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent a
collision, you must apply the brakes yourself.XTo activate/deactivate: activate or
deactivate PRE-SAFE ®
Brake in the on-
board computer ( Y page 190).
The Ä symbol appears in the
multifunction display as long as the HOLD
function is not activated ( Y page 168).
On vehicles with Parking Guidance, the
Ä symbol is displayed when P is
engaged or is selected or if you drive faster
than 22 mph (35 km/h).
For PRE-SAFE ®
Brake to assist you when
driving, the radar sensor system must be
switched on ( Y page 194) and be
operational.
Following damage to the front end of the
vehicle, have the configuration and operation
of the radar sensors checked at a qualified
specialist workshop. This also applies to
collisions at low speeds where there is no
visible damage to the front of the vehicle.
Theft deterrent locking system
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
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.
XTo activate with the SmartKey: remove
the SmartKey from the ignition lock.XTo activate with KEYLESS-GO: switch the
ignition off and open the driver's door.XTo deactivate: switch on the ignition.
i
The immobilizer is always deactivated
when you start the engine.
In the event that the engine cannot be
started when the starter battery is fully
charged, the immobilizer may be faulty.
Contact an authorized Mercedes-Benz
64Theft deterrent locking systemSafety

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).
SmartKey
Important safety notes
GWARNING
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. A child'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.GWARNING
If a key ring is too heavy or too large, the
weight acting on the key could cause it to turn
in the ignition lock or catch on the steering
wheel. This could cause the engine to be
switched off suddenly. You may lose control
of the vehicle and cause an accident. Do not
attach any heavy or large key rings to the key
that is inserted in the ignition.
General notes
If you cannot lock or unlock the vehicle with
the SmartKey, either the battery in the
SmartKey is discharged, the SmartKey is
faulty or the starter battery is discharged.
XCheck the battery in the SmartKey and
replace it if necessary ( Y page 71).XUnlock the driver's door using the
mechanical key ( Y page 76).XLock the vehicle using the mechanical key
( Y page 76).XHave the starter battery and the battery
contacts checked at a qualified specialist
workshop.
If the SmartKey is faulty, contact Roadside
Assistance or a qualified specialist workshop.
SmartKey functions
The SmartKey centrally locks/unlocks:
R the doors
R the trunk lid
R the glove box
R the stowage compartment in the center
console
R the fuel filler flap
68SmartKeyOpening/closing

If you pull on the handle of the trunk lid, only
the trunk of the vehicle is unlocked.
Changing the settings of the locking
system
You can change the settings of the locking
system so that when unlocking, only the
driver's door, the lockable stowage
compartments in the vehicle interior and the
fuel filler flap are unlocked. This is useful if
you frequently travel on your own.
XTo change the setting: press and hold
down the % and & buttons
simultaneously for approximately
six seconds until the battery check lamp
flashes twice ( Y page 71).
i
If the setting of the locking system is
changed within the signal range of the
vehicle, pressing the & or % button
locks or unlocks the vehicle.
The SmartKey now functions as follows:
XTo unlock the driver's door: press the
% button once.XTo unlock centrally: press the %
button twice.XTo lock centrally: press the & button.
The KEYLESS-GO function is changed as
follows:
XTo unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.XTo unlock centrally: touch the inner
surface of the front-passenger door handle.XTo lock centrally: touch the outer sensor
surface on one of the door handles.
Restoring the factory settings
XPress the % and & buttons
simultaneously for approximately
six seconds until the battery check lamp
flashes twice.Mechanical key
General notes
If the vehicle can no longer be locked or
unlocked with the SmartKey, use the
mechanical key.
If you use the mechanical key to unlock and
open the driver's door or the trunk lid, the
anti-theft alarm system will be triggered
( Y page 65).
There are several ways to turn off the alarm:
XTo turn the alarm off with the
SmartKey: press the % or & button
on the SmartKey.
or
XInsert the SmartKey into the ignition lock.
or
XTo deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the
ignition lock. The SmartKey must be in the
vehicle.
or
XLock 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.
XTo unlock the fuel filler flap: insert the
SmartKey in the ignition lock.
Removing the mechanical key
70SmartKeyOpening/closing