2014 MERCEDES-BENZ SL-CLASS ROADSTER brake sensor

Operating safety
Declaration of conformity ................30
Important safety notes ....................29
Operating system
see On-board computer
Operator's Manual
Vehicle equipment ...........................27
Outside temperature display ...........160
Overhead control panel ......................41 P
Paint code number ............................274
Paintwork (cleaning instructions) ...222
Panic alarm .......................................... 44
Parking ............................................... 130
Important safety notes ..................130
Position of exterior mirror, front-
passenger side ............................... 102
Rear view camera .......................... 147
see PARKTRONIC
Parking aid
Active Parking Assist .....................145
see Exterior mirrors
see PARKTRONIC
Parking brake
Display message ............................ 163
Parking lamps
Switching on/off ........................... 108
PARKTRONIC
Deactivating/activating .................145
Driving system ............................... 144
Function/notes ............................. 144
Important safety notes ..................144
Problem (malfunction) ...................145
Range of the sensors .....................144
Warning displa y............................. 145
PASSENGER AIR BAG OFF
Problem (malfunction) .....................56
Problems (malfunction) .................. 170
PASSENGER AIR BAG OFF indicator
lamp ...................................................... 51
Phone book see also Digital Operator's Manual 188
Plastic trim (cleaning instructions) .223
Power closing feature .........................84
Power washers .................................. 222Power windows
see Side windows
PRE-SAFE ®
(anticipatory occupant
protection) Display message ............................ 167
Operation ........................................ .57
PRE-SAFE ®
Brake
Activating/deactivating .................161
Display message ............................ 167
Function/notes ................................ 73
Warning lamp ................................. 184
Program selector button ..................126
Protection of the environment General notes .................................. 26
Pulling away (automatic
transmission) ..................................... 124 Q
Qualified specialist workshop ...........30 R
RACE START Important safety notes ..................141
RACETIMER (on-board
computer) .......................................... 161
Radar sensor system Activating/deactivating .................161
Display message ............................ 163
Radio
Selecting a station .........................161
see separate operating instructions
Radio mode
see also Digital Operator's Manual 188
Radio-wave reception/
transmission in the vehicle
Declaration of conformity ................30
Reading lamp ..................................... 110
Rear fog lamp Display message ............................ 163
Rear lamps
see Lights
Rear view camera
Cleaning instructions .....................222
Function/notes ............................. 147
Switching on/off ........................... 14814
Index

Switching seat heating on/of
f....... 101
Switching seat ventilation on/off ..101
Selector lever
Positions ........................................ 126
Sensors (cleaning instructions) .......222
Service menu (on-board
computer) .......................................... 161
Service products Brake fluid ..................................... 276
Coolant (engine) ............................ 277
Engine oil ....................................... 276
Fuel ................................................ 275
Important safety notes ..................275
Refrigerant (air-conditioning
system) .......................................... 278
Washer fluid .................................. .278
Service work
see ASSYST PLUS
Settings
Factory (on-board computer) .........161
Menu overview .............................. 192
On-board computer .......................161
Setting the air distribution ...............116
Setting the airflow ............................116
Setting the date/time format see also Digital Operator's Manual 188
Setting the language
see also Digital Operator's Manual 188
Setting the time
see also Digital Operator's Manual 188
SETUP (on-board computer) .............161
Side impact air bag .............................49
Side marker lamp (display
message) ............................................ 163
Side windows Cleaning ......................................... 222
Important safety information .....89, 90
Opening/closing (all) .......................90
Opening/closing (front) ...................90
Overview .......................................... 89
Problem (malfunction) .....................91
Resetting ......................................... 90
SIRIUS services
see also Digital Operator's Manual 188
SmartKey
Changing the battery .......................81
Changing the programming .............79Checking the battery
.......................80
Display message ............................ 163
Door central locking/unlocking .......78
Important safety notes ....................78
Loss ................................................. 82
Mechanical key ................................ 80
Opening/closing the roof ................93
Overview .......................................... 78
Positions (ignition lock) .................121
Problem (malfunction) .....................82
Starting the engine ........................123
SMS
see also Digital Operator's Manual 188
Sockets
Front-passenger footwell ...............206
Points to observe before use .........206
Trunk ............................................. 206
Under the armrest .........................206
Specialist workshop ............................ 30
Special seat belt retractor .................. 66
Speed, controlling see Cruise control
Speedometer
Digital ............................................ 161
In the Instrument cluster .................35
Segments ...................................... 160
Selecting the unit of
measurement ................................ 161
SPORT handling mode
Activating/deactivating (AMG
vehicles) .......................................... 71
Warning lamp ................................. 180
SRS
see SRS (Supplemental Restraint
System)
SRS (Supplemental Restraint
System)
Display message ............................ 168
Introduction ..................................... 45
Warning lamp ................................. 182
Warning lamp (function) ................... 45
Standing lamps
Display message ............................ 163
Switching on/off ........................... 108
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 123
STEER CONTROL .................................. 7416
Index

Protection of the environment
General notes
H
Environmental note
Daimler's declared policy is one of
comprehensive 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
environmentally 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
consumption.
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 and
braking. 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
consumption. Environmental concerns and
recommendations
Wherever the operating instructions require
you to dispose of materials, first try to
regenerate 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
H
Environmental 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 new
parts.
! Air bags and Emergency Tensioning
Devices, 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
systems. 26
Introduction

PRE-SAFE
®
(anticipatory occupant
protection system)
Introduction PRE-SAFE
®
takes preemptive measures to
protect occupants in certain hazardous
situations.
Important safety notes !
Make sure that there are no objects in the
footwell or behind the seats when resetting
the seats. There is a risk that the seats
and/or the objects could be damaged.
Despite your vehicle being equipped with the
PRE-SAFE ®
system, the possibility of
personal injuries occurring as a result of an
accident cannot be eliminated.
Always adapt your driving style to suit the
prevailing road and weather conditions and
maintain a safe distance from the vehicle in
front. Drive carefully.
Function PRE-SAFE
®
intervenes:
R in emergency braking situations, e.g. when
BAS is activated.
R in critical driving situations, e.g. when
physical limits are exceeded and the
vehicle understeers or oversteers severely.
R on vehicles with DISTRONIC PLUS: if
BAS PLUS brakes hard or the radar sensor
system detects an imminent danger of
collision in certain situations.
PRE-SAFE ®
takes the following measures
depending on the hazardous situation
detected:
R the seat belts are pre-tensioned.
R if the vehicle skids, the side windows are
closed so that only a small gap remains. R
the front-passenger seat is adjusted if it is
in an unfavorable position.
R Vehicles with a multicontour seat or
active multicontour seat: the air
pressure in the side bolsters is increased.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pre-tensioning. All settings made by
PRE-SAFE ®
can then be reversed.
If the seat belts are not released:
X When the vehicle is stationary, move the
backrest or seat back slightly.
The seat belt pre-tensioning is reduced and
the locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. More
information about seat-belt adjustment can
be found under "Seat-belt adjustment"
(Y page 60). NECK-PRO head restraints
Important safety notes G
WARNING
Do not secure any objects (e.g. coat hangers)
on the NECK-PRO head restraints. Otherwise,
the NECK-PRO head restraints may not
function properly, or in the event of a rear-end
collision may not be able offer the level of
protection they are designed to provide. G
WARNING
Seat or head restraint covers can cause a
malfunction when the NECK-PRO head
restraints are activated or when the side
impact air bags are deployed, or they can
prevent this completely. The NECK-PRO head
restraints or side impact air bags can
therefore not provide the intended protection.
Do not use any seat or head restraint covers. G
WARNING
For your protection, drive only with properly
positioned head restraints. Occupant safety
57Safety
Z

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 i
Observe the "Important safety notes"
section ( Ypage 66).
BAS PLUS is only available in vehicles
equipped 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
when braking.
Important safety notes G
WARNING
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
situation and be ready to brake. Terminate the
intervention in a non-critical driving situation. G
WARNING
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
accident.
Always pay careful attention to the traffic
situation and be ready to brake.
In the event of snowfall or heavy rain, the
recognition can be impaired.
Recognition by the radar sensor system is
also impaired in the event of:
R dirt on the sensors or anything else
covering the sensors
R 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
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.
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
possible moment. 68
Driving safety systemsSafety

(Y
page 140) and hill start assist
(Y page 124). PRE-SAFE
®
Brake
General information i
Observe the "Important safety notes"
section (Y page 66).
PRE-SAFE ®
Brake is only available in vehicles
with DISTRONIC PLUS.
For PRE-SAFE ®
Brake to assist you when
driving, the radar sensor system must be
operational.
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 G
WARNING
PRE-SAFE ®
Brake will initially brake your
vehicle 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 collision. There is a risk of an accident.
Always apply the brakes yourself and try to
take evasive action. G
WARNING
PRE-SAFE ®
Brake cannot always clearly
identify 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
collision, you must apply the brakes yourself. G
WARNING
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
situations. There is a risk of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
In the event of snowfall or heavy rain, the
recognition can be impaired.
Recognition by the radar sensor system is
also impaired in the event of:
R dirt on the sensors or anything else
covering the sensors
R 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
vehicle, have the configuration and operation
of the radar sensors checked at a qualified
specialist workshop. This also applies to Driving safety systems
73Safety Z

the Xenon bulb and touch the electrical
contacts. There is a risk of fatal injury.
Never touch the parts or the electrical
contacts of the Xenon bulb. Always have work
on the Xenon bulbs carried out at a qualified
specialist workshop.
The front and rear lamps of your vehicle are
equipped with either Xenon or LED bulbs. Do
not replace the bulbs yourself. Contact a
qualified specialist workshop which has the
necessary specialist knowledge and tools to
carry out the work required.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly. Windshield wipers
Switching the windshield wipers on/
off Combination switch
1
$ Windshield wiper off
2 Ä Intermittent wipe, low (rain sensor
set to low sensitivity)
3 Å Intermittent wipe, high (rain sensor
set to high sensitivity)
4 ° Continuous wipe, slow
5 ¯ Continuous wipe, fast
B í Single wipe/ îTo wipe the
windshield using washer fluid
If the wiper blades are worn, the windshield
will no longer be wiped properly. This could prevent you from observing the traffic
conditions, thereby causing an accident.
Replace the wiper blades twice a year, ideally
in spring and fall.
i
The vehicle is equipped with the MAGIC
VISION CONTROL wipe/wash system. The
washer fluid is fed through the wiper blades
and when wiping the screen with washer
fluid î, the water is emitted directly
from the blades. Replacing the wiper blades
Important safety notes G
WARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could
be trapped by the wiper arm. There is a risk
of injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
Changing the windshield wiper blades Moving the wiper arm to a vertical
position
On vehicles without KEYLESS-GO:
X
Turn the SmartKey to position 1or 2in the
ignition lock.
X Set the windshield wipers to
position °.
X When the wiper arms have reached a
vertical position, turn the SmartKey to
position 0and remove it from the ignition
lock.
X Fold the wiper arm away from the
windshield until it engages.
On vehicles with KEYLESS-GO:
X Switch off the engine.
X Remove your foot from the brake pedal.
X Set the windshield wipers to
position °. Windshield
wipers
111Lights and windshield wipers Z

order to increase the distance to the vehicle
in front or take evasive action provided it is
safe to do so.
For DISTRONIC PLUS to assist you, the radar
sensor system must be operational.
If there is no vehicle in front, DISTRONIC
PLUS operates in the same way as cruise
control in the speed range between 20 mph
(Canada: 30 km/h) and 120 mph (Canada:
200 km/h). If a vehicle is driving in front of
you, it operates in the speed range between
0 mph (0 km/h) and 120 mph (Canada:
200 km/h).
Do not use DISTRONIC PLUS while driving on
roads with steep gradients.
As DISTRONIC PLUS transmits radar waves,
it can resemble the radar detectors of the
responsible authorities. You can refer to the
relevant chapter in the Operator's Manual if
questions are asked about this.
i USA only: This device has been approved
by the FCC as a "Vehicular Radar System".
The radar sensor is intended for use in an
automotive radar system only. Removal,
tampering, or altering of the device will void
any warranties, and is not permitted by the
FCC. Do not tamper with, alter, or use in
any non-approved way.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
i Canada only: This device complies with
RSS-210 of Industry Canada. 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 of the device.
Removal, tampering, or altering of the
device will void any warranties, and is not
permitted. Do not tamper with, alter, or use
in any non-approved way. Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
Important safety notes G
WARNING
DISTRONIC PLUS does not react to:
R people or animals
R stationary obstacles on the road, e.g.
stopped or parked vehicles
R oncoming and crossing traffic
As a result, DISTRONIC PLUS may neither give
warnings nor intervene in such situations.
There is a risk of an accident.
Always pay careful attention to the traffic
situation and be ready to brake. G
WARNING
DISTRONIC PLUS cannot always clearly
identify other road users and complex traffic
situations.
In such cases, DISTRONIC PLUS may:
R give an unnecessary warning and then
brake the vehicle
R neither give a warning nor intervene
R accelerate unexpectedly
There is a risk of an accident.
Continue to drive carefully and be ready to
brake, in particular when warned to do so by
DISTRONIC PLUS. G
WARNING
DISTRONIC PLUS brakes your vehicle with up
to 40% of the maximum braking force. If this
braking force is insufficient, DISTRONIC PLUS
warns you visually and audibly. There is a risk
of an accident.
In such cases, apply the brakes yourself and
try to take evasive action. 134
Driving systemsDriving and parking