2015 MERCEDES-BENZ SLK-CLASS ROADSTER brake sensor

O
Occupant Classification System (OCS)Conditions ....................................... 49
Faults ............................................... 53
Operation ......................................... 49
System self-test .............................. .51
Occupant safety
Automatic measures after an acci-
dent ................................................ .57
Children in the vehicle .................... .57
Important safety notes .................... 41
Pets in the vehicle ........................... 60 PRE-SAFE ®
(anticipatory occu-
pant protection) ............................... 56
OCS
Conditions ....................................... 49
Faults ............................................... 53
Operation ........................................ .49
System self-test ............................... 51
Odometer ........................................... 197
Oil
see Engine oil
On-board computer
AMG menu ..................................... 208
Assistance menu ........................... 202
Audio menu ................................... 200
Convenience submenu .................. 207
Display messages .......................... 212
Displaying a service message ........ 285
DISTRONIC PLUS ........................... 177
Factory settings submenu ............. 208
Important safety notes .................. 194
Instrument cluster submenu .......... 204
Lighting submenu .......................... 205
Menu overview .............................. 197
Message memory .......................... 212
Navigation menu ............................ 199
Operation ....................................... 195
RACETIMER ................................... 209
Service menu ................................. 204
Settings menu ............................... 204
Standard display ............................ 197
Telephone menu ............................ 201
Trip menu ...................................... 197
Vehicle submenu ........................... 206
Video DVD operation ..................... 201 Operating safety
Declaration of conformity ................ 25
Important safety notes .................... 24
Operating system
see On-board computer
Operator's Manual
Vehicle equipment ........................... 22
Outside temperature display ........... 195
Overhead control panel ...................... 36
P
Paint code number............................ 348
Paintwork (cleaning instructions) ... 287
Panic alarm .......................................... 40
Parking
Important safety notes .................. 161
Parking brake ................................ 162
Position of exterior mirror, front-
passenger side ............................... 105
see PARKTRONIC
Parking aid
Parking Guidance ........................... 185
see Exterior mirrors
see PARKTRONIC
Parking assistance
see PARKTRONIC
Parking brake
Display message ............................ 216
Electric parking brake .................... 162
Warning lamp ................................. 251
Parking Guidance
Display message ............................ 233
Important safety notes .................. 185
Parking lamps
Switching on/of f........................... 110
PARKTRONIC
Deactivating/activating ................. 184
Driving system ............................... 182
Function/note s............................. 182
Important safety notes .................. 182
Problem (malfunction) ................... 185
Range of the sensors ..................... 182
Warning display ............................. 183
PASSENGER AIR BAG OFF
Indicator lamp .................................. 41
Problems (malfunction) .................. 224
Pets in the vehicle ............................... 60
Index13

Pivoting draft stopsee AIRGUIDE
Plastic trim (cleaning instruc- tions) .................................................. 290
Power washers ................................. .287
Power windows
see Side windows
PRE-SAFE ®
(anticipatory occupant
protection)
Display message ............................ 220
Operation ......................................... 56
PRE-SAFE ®
Brake
Activating/deactivating ................. 203
Display message ............................ 221
Function/notes ................................ 67
Warning lamp ................................. 254
Program selector button .................. 153
Protection against theft
ATA (Anti-Theft Alarm system) ......... 69
Immobilizer ...................................... 68
Protection of the environment
General notes .................................. 21
Pulling away
Automatic transmission ................. 142
Manual transmission ..................... .142
Q
QR code
Mercedes-Benz Guide App ................. 1
Rescue card ..................................... 27
Qualified specialist workshop ........... 25
R
RACETIMER (on-board computer) .... 209
Radar sensor system
Activating/deactivating ................. 207
Display message ............................ 231
Radio
Selecting a station ......................... 200
Radio-wave reception/transmis-
sion in the vehicle
Declaration of conformity ................ 25
Reading lamp ..................................... 113
Rear fog lamp
Display message ............................ 227
Switching on/off ........................... 110 Rear lamps
see Lights
Rear window defroster
Problem (malfunction) ................... 133
Switching on/off ........................... 132
Rear-view mirror
Anti-glare (manual) ........................ 103
Dipping (automatic) ....................... 104
Refrigerant (air-conditioning sys-tem)
Important safety notes .................. 354
Refueling
Fuel gauge ....................................... 31
Important safety notes .................. 158
Refueling proces s.......................... 159
see Fuel
Releasing the parking lock man-
ually (automatic transmission) ........ 158
Remote control
Programming (garage door
opener) .......................................... 272
Replacing bulbs
Important safety notes .................. 114
Overview of bulb types .................. 115
Removing/replacing the cover
(front wheel arch) .......................... 115
Reporting safety defects .................... 26
Rescue card ......................................... 27
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 230
Warning lamp ................................. 252
see Fuel
Residual heat (climate control) ........ 133
Restraint system
Display message ............................ 221
Introduction ..................................... 40
Warning lamp ................................. 251
Warning lamp (function) ................... 41
Reverse gear
Engaging (automatic transmis-
sion) ............................................... 151
Engaging (manual transmission) .... 150
Reversible floor panel (trunk) .......... 260
Reversing feature
Side window s................................... 83
14Index

Trunk lid ...........................................81
Reversing lamps (display mes-
sage) ................................................... 227
Roadside Assistance (breakdown) .... 23
Roof
Display messag e............................ 241
Important safety notes .................... 87
Opening/closing (with roof
switch) ............................................. 88
Opening/closing (with Smart-
Key) ................................................. 89
Overview .......................................... 87
Problem (malfunction) ..................... 94
Relocking ......................................... 89
Roof carrier ........................................ 260
Roof lining and carpets (cleaning
guidelines) ......................................... 292
Roof switch .......................................... 88
S
Safety
Occupant Classification System
(OCS) ............................................... 49
Safety system
see Driving safety systems
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 45
Cleaning ......................................... 291
Correct usage .................................. 43
Fastening ......................................... 44
Important safety guidelines ............. 42
Introduction ..................................... 42
Releasing ......................................... 44
Switching belt adjustment on/off
(on-board computer) ...................... 207
Warning lamp ................................. 244
Warning lamp (function) ................... 45
Seats
Adjusting (electrically) ..................... 98
Adjusting (manually) ........................ 98
Adjusting the 4-way lumbar sup-
port .................................................. 99
Adjusting the head restraint ............ 98
Cleaning the cover ......................... 291
Correct driver's seat position ........... 96
Important safety notes .................... 97 Overview .......................................... 97
Seat heating problem .................... 100
Storing settings (memory func-
tion) ............................................... 106
Switching AIRSCARF on/of
f.......... 100
Switching seat heating on/of f......... 99
Selector lever
Cleaning ......................................... 290
Sensors (cleaning instructions) ....... 289
Service menu (on-board com- puter) .................................................. 204
Service products
Brake fluid ..................................... 352
Coolant (engine) ............................ 352
Engine oil ....................................... 351
Fuel ................................................ 350
Important safety notes .................. 349
Refrigerant (air-conditioning sys-
tem) ............................................... 354
Washer fluid ................................... 353
Setting the air distribution ............... 130
Setting the airflow ............................ 130
Settings
Factory (on-board computer) ......... 208
On-board compute r....................... 204
SETUP (on-board computer) ............. 209
Side impact air bag ............................. 47
Side marker lamp
Changing bulbs (rear) .................... 116
Side marker lamp (display mes-
sage) ................................................... 227
Side windows
Cleaning ......................................... 288
Convenience closing feature ............ 85
Important safety information ........... 83
Opening/closing (all) ....................... 84
Opening/closing (front) ................... 84
Overview .......................................... 83
Problem (malfunction) ..................... 87
Resetting ......................................... 86
SmartKey
Changing the battery ....................... 75
Changing the programming ............. 73
Checking the battery ....................... 75
Convenience opening feature .......... 85
Display message ............................ 242
Door central locking/unlocking ....... 72
Index15

Protection of the environment
General notes
HEnvironmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in a manner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected by these factors:
R operating conditions of your vehicle
R your personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions:
R avoid short trips as these increase fuel con-
sumption.
R always make sure that the tire pressures
are correct.
R do not carry any unnecessary weight.
R remove roof racks once you no longer need
them.
R a regularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
R always have service work carried out at a
qualified specialist workshop.
Personal driving style:
R do not depress the accelerator pedal when
starting the engine.
R do not warm up the engine when the vehicle
is stationary.
R drive carefully and maintain a safe distance
from the vehicle in front.
R avoid frequent, sudden acceleration andbraking.
R change gear in good time and use each gear
only up to Ôof its maximum engine speed.
R switch off the engine in stationary traffic.
R keep an eye on the vehicle's fuel consump-
tion.
Environmental concerns and recom-
mendations
Wherever the operating instructions require
you to dispose of materials, first try to regen-
erate or re-use them. Observe the relevant
environmental rules and regulations when
disposing of materials. In this way you will
help to protect the environment.
Genuine Mercedes-Benz parts
HEnvironmental note
Daimler AG also supplies reconditioned major
assemblies and parts which are of the same
quality as new parts. They are covered by the same Limited Warranty entitlements as newparts.
!Air bags and Emergency Tensioning Devi-
ces, as well as control units and sensors for these restraint systems, may be installed in
the following areas of your vehicle:
R doors
R door pillars
R door sills
R seats
R cockpit
R instrument cluster
R center console
Do not install accessories such as audio
systems in these areas. Do not carry out
repairs or welding. You could impair the
operating efficiency of the restraint sys-tems.
Have aftermarket accessories installed at a qualified specialist workshop.
Introduction21
Z

The pulsating brake pedal can be an indica-
tion of hazardous road conditions, and func-
tions as a reminder to take extra care whiledriving.
BAS (Brake Assist System)
General information
BAS operates in emergency braking situa-
tions. If you depress the brake pedal quickly,
BAS automatically boosts the braking force,
thus shortening the stopping distance.
Important safety notes
iObserve the "Important safety notes" sec-
tion ( Ypage 61).
GWARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
Braking
X
Keep the brake pedal firmly depressed until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
BAS PLUS (Brake Assist System PLUS)
General information
iObserve the "Important safety notes" sec-
tion ( Ypage 61).
BAS PLUS is only available in vehicles equip-
ped with DISTRONIC PLUS.
For BAS PLUS to assist you, the radar sensor system must be operational. With the help of the radar sensor system, BAS
PLUS can detect obstacles that are in the
path of your vehicle for an extended period of
time.
If the radar sensor system is malfunctioning,
BAS PLUS will not be available. The brake
system is still available with complete brake
boosting effect and BAS.
BAS PLUS can help you to minimize the risk of a collision with a vehicle or reduce the effects
of such a collision. If BAS PLUS detects a
danger of collision, you are assisted whenbraking.
Important safety notes
GWARNING
BAS PLUS cannot always clearly identify
objects and complex traffic situations.
In such cases, BAS PLUS may:
R intervene unnecessarily
R not intervene
There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. Terminate the
intervention in a non-critical driving situation.
GWARNING
BAS PLUS does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
As a result, BAS PLUS may not intervene in all
critical situations. There is a risk of an acci- dent.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
In the event of snowfall or heavy rain, the rec-
ognition can be impaired.
62Driving safety systems
Safety

Recognition by the radar sensor system is
also impaired in the event of:R there is dirt on the sensors or anything else
covering the sensors
R there is interference by other radar sources
R there are 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
relative to the center of your vehicle
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensors checked at a qualified spe-
cialist workshop. This also applies to colli-
sions at low speeds where there is no visible
damage to the front of the vehicle.
Function
To avoid a collision, BAS PLUS calculates the
brake force necessary if:
R you approach an obstacle, and
R BAS PLUS has detected a risk of collision
When driving at a speed under 20 mph
(30 km/h) : if you depress the brake pedal,
BAS PLUS is activated. The increase in brake pressure will be carried out at the last possi-
ble moment.
When driving at a speed above 20 mph
(30 km/h) : if you depress the brake pedal
sharply, BAS PLUS automatically raises the
brake pressure to a value adapted to the traf-
fic situation.
BAS PLUS provides braking assistance in haz-
ardous situations with vehicles in front within a speed range between 4 mph (7 km/h) and
155 mph (250 km/h).
At speeds of up to approximately 40 mph
(70 km/ h), BAS PLUS can also react to sta-
tionary objects. Examples of stationary
objects are stopped or parked vehicles.
iIf BAS PLUS demands particularly high
braking force, preventative passenger pro- tection measures (PRE-SAFE
®
) are activa-
ted simultaneously.
X Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
BAS PLUS is deactivated and the brakes func- tion as usual again, if:
R you release the brake pedal.
R there is no longer a risk of collision.
R no obstacle is detected in front of your
vehicle.
R you depress the accelerator pedal.
R you activate kickdown.
ESP®(Electronic Stability Program)
General notes
iObserve the "Important safety notes" sec-
tion ( Ypage 61).
ESP ®
monitors driving stability and traction,
i.e. power transmission between the tires and
the road surface.
If ESP ®
detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilize the
vehicle. The engine output is also modified to keep the vehicle on the desired course within
physical limits. ESP ®
assists the driver when
pulling away on wet or slippery roads. ESP ®
can also stabilize the vehicle during braking.
ETS (Electronic Traction System)
iObserve the "Important safety notes" sec-
tion ( Ypage 61).
ETS traction control is part of ESP ®
.
ETS brakes the drive wheels individually if
they spin. This enables you to pull away and
accelerate on slippery surfaces, for example
if the road surface is slippery on one side. In
addition, more drive torque is transferred to
the wheel or wheels with traction.
Driving safety systems63
Safety
Z

Important safety notes
iObserve the "Important safety notes" sec-
tion for driving safety systems ( Ypage 61).
GWARNING
If EBD is malfunctioning, the rear wheels can
lock, e.g. under full braking. This increases the
risk of skidding and an accident.
You should therefore adapt your driving style
to the different handling characteristics. Havethe brake system checked at a qualified spe-
cialist workshop.
Observe information regarding indicator and
warning lamps ( Ypage 246) as well as dis-
play messages ( Ypage 215).
ADAPTIVE BRAKE
iObserve the "Important safety notes" sec-
tion ( Ypage 61).
ADAPTIVE BRAKE enhances braking safety
and offers increased braking comfort. In addi-
tion to the braking function, ADAPTIVE BRAKE
also has the HOLD function ( Ypage 180) and
hill start assist ( Ypage 143).
PRE-SAFE®Brake
General information
iObserve the "Important safety notes" sec-
tion ( Ypage 61).
PRE-SAFE ®
Brake is only available in vehicles
with DISTRONIC PLUS.
For PRE-SAFE ®
Brake to assist you when driv-
ing, the radar sensor system must be opera-
tional.
With the help of the radar sensor system,
PRE-SAFE ®
Brake can detect obstacles that
are in front of your vehicle for an extended
period of time.
PRE-SAFE ®
Brake can help you to minimize
the risk of a collision with a vehicle ahead, and reduce the effects of such a collision. If PRE- SAFE
®
Brake has detected a risk of collision,
you will be warned visually and acoustically as
well as by automatic braking. PRE-SAFE ®
Brake cannot prevent a collision without your intervention.
Important safety notes
GWARNING
PRE-SAFE ®
Brake will initially brake your vehi-
cle by a partial application of the brakes if a
danger of collision is detected. There may be
a collision unless you also brake. Automatic
emergency braking cannot prevent a colli-
sion. There is a risk of an accident.
Always apply the brakes yourself and try to
take evasive action.
GWARNING
PRE-SAFE ®
Brake cannot always clearly iden-
tify objects and complex traffic conditions.
In these cases, PRE-SAFE ®
Brake may:
R give an unnecessary warning and then
brake the vehicle
R not give a warning or 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 ®
Brake warns you. Terminate the
intervention in a non-critical driving situation.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent a col- lision, you must apply the brakes yourself.
GWARNING
PRE-SAFE ®
Brake does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
As a result, PRE-SAFE ®
Brake may neither
give warnings nor intervene in all critical sit-
uations. There is a risk of an accident.
Driving safety systems67
Safety
Z

Always pay careful attention to the traffic sit-uation and be ready to brake.
In the event of snowfall or heavy rain, the rec-
ognition can be impaired.
Recognition by the radar sensor system is
also impaired in the event of:
R there is dirt on the sensors or anything else
covering the sensors
R there is interference by other radar sources
R there are 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
relative to the center of your vehicle
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensors checked at a qualified spe-
cialist workshop. This also applies to colli-
sions at low speeds where there is no visible
damage to the front of the vehicle.
Function
X To activate/deactivate: activate or deac-
tivate PRE-SAFE ®
Brake in the on-board
computer ( Ypage 203).
When PRE-SAFE ®
Brake is deactivated, the
assistance graphic shows the æsymbol
in the multifunction display.
Starting at a speed of around 4 mph (7 km/h),
this function warns you if you rapidly
approach a vehicle in front. An intermittent
warning tone will then sound and the ·
distance warning lamp will light up in the
instrument cluster.
X Brake immediately to defuse the situation.
or
X Take evasive action provided it is safe to do
so.
PRE-SAFE ®
Brake can also brake the vehicle
automatically under the following conditions:
R the driver and front-passenger have their
seat belts fastened and
R the vehicle speed is between approx-
imately 4 mph (7 km/h) and 124 mph
(200 km/h)
At speeds of up to approximately 40 mph
(70 km/h) PRE-SAFE ®
Brake can also detect
stationary objects. Examples of stationary
objects are stopped or parked vehicles.
iIf there is an increased risk of collision,
preventive passenger protection measures
(PRE-SAFE ®
) are activated.
If the risk of collision with the vehicle in front
remains and you do not brake, take evasive
action or accelerate significantly, the vehicle
may perform automatic emergency braking,
up to the point of full brake application. Auto-
matic emergency braking is not performed
until immediately prior to an imminent acci-
dent.
You can prevent the intervention of the PRE- SAFE ®
Brake at any time by:
R depressing the accelerator pedal further.
R activating kickdown.
R releasing the brake pedal.
The braking action of PRE-SAFE ®
Brake is
ended automatically if:
R you maneuver to avoid the obstacle.
R there is no longer any danger of a collision.
R there is no longer an obstacle detected in
front of your vehicle.
Protection against theft
Immobilizer
XTo activate with the SmartKey: remove
the SmartKey from the ignition lock.
X To activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
X To deactivate: switch on the ignition.
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
68Protection against theft
Safety