2012 MERCEDES-BENZ SLK ROADSTER parking sensors

C
Calling up a fault see Display messages
Capacities
see Technical data
Car
see Vehicle
Care
Automatic car wash .......................254
Carpets .......................................... 258
Display ........................................... 257
Exterior lighting ............................. 256
Gea rors electo rlever .................... 258
High-pressure cleaner .................... 254
Interior ........................................... 257
Matt paintwork .............................. 255
Notes ............................................. 253
Paint .............................................. 255
Plastic trim .................................... 257
Roof lining ...................................... 258
Seat bel t........................................ 258
Seat cover ..................................... 258
Sensors ......................................... 257
Steering wheel ............................... 258
Tai lpipes ....................................... 257
Trim pieces .................................... 258
Washing by hand ........................... 254
Wheels ........................................... 255
Windows ........................................ 256
Wiper blades .................................. 256
Wooden trim .................................. 258
Car key
see Key
Car wash (care) ................................. 254
CD player/CD changer(on-board
computer) .......................................... 186
Cell phone see Mobile phone
Central locking
Automatic locking (on-board com-
puter) ............................................. 193
Locking/unlocking (key ).................. 66
Centre console
Lowe rsection .................................. 33
Uppe rsection .................................. 32Changing bulbs
Dipped-bea mheadlamps ............... 108
Important safety notes ..................106
Main-beam headlamps ................... 108
Overview of bul btypes .................. 107
Parking lamps (front) .....................108
Removing/replacing the cover
(front wheel arch) .......................... 107
Reversing lamps ............................ 109
Standing lamps .............................. 108
Turn signals (front) ......................... 108
Children
In the vehicle ................................... 47
Restraint systems ............................ 47
Child seat
Automatic recognition .....................49
On the front-passenger sea t............ 48
Problem (malfunction) .....................51
Recommendations ...........................52
Suitable positions ............................ 51
Cigarette lighter ................................ 240
Cleaning Mirro rturn signal ........................... 256
Climate control
Air conditioning ............................. 115
Controlling automatically ...............118
Convenience opening/closing
(air-recirculatio nmode) ................. 121
Cooling with aird ehumidification..117
Demisting the windows .................. 120
Demisting the windscreen .............120
Important safety notes ..................114
Indicator lamp ................................ 118
Notes on using the air-condition-
ing system ..................................... 115
Notes on using THERMOTRONIC
automatic climate control ..............116
Overview of systems ......................114
Problems with cooling with air
dehumidification ............................ 118
Problem with the rear window
heating .......................................... 121
Setting the aird istribution.............119
Setting the airflow .........................119
Setting the airv ents...................... 122
Setting the temperature ................118
Switching air-recirculation mode
on/off ............................................ 1216
Index

Refuelling
Fuelgauge ....................................... 28
Important safety notes ..................142
Refuelling proces s......................... 143
see Fuel
Releasing the parking loc kman-
ually (automatic transmission) ........142
Remote control Garage door opene r....................... 243
Programming (garage door
opener) .......................................... 243
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 212
Warning lamp ................................. 231
Residual heat (climate control) ........122
Restraint system see SRS (Supplemental Restraint
System)
Rev counter ........................................ 179
Reverse gear Engaging (automatic transmis-
sion) ............................................... 137
Engaging (manual transmission) ....136
Reversible floor (boot) ......................238
Reversing lamp Changing bulbs .............................. 109
Reversing lamps
Display message ............................ 210
Roof
Display message ............................ 221
Important safety notes ....................78
Opening/closing (with key) .............. 80
Opening/closing (with roof
switch) ............................................. 79
Problem (malfunction) .....................82
Relocking ......................................... 80
Roof carrier ........................................ 238
Roof lining and carpets (cleaning
instructions) ...................................... 258
Roof switch .......................................... 79
Route (navigation) see Route guidance (navigation)
Route guidance (navigation) ............184 S
Safety Childre ninthe vehicle ..................... 47
Child restraint systems ....................47
Safety systems
see Driving safety systems
Seat belt
Adjusting the driver's and front-
passenger sea tbelt ......................... 46
Belt force limiter .............................. 46
Belt tensione r.................................. 46
Cleaning ......................................... 258
Fastening ......................................... 45
Important safety guidelines .............44
Releasing ......................................... 46
Switching belt adjustment on/off
(on-board computer) ......................194
Warning lamp ................................. 224
Warning lamp (function) ................... 46
Seats
Adjusting (electrically). ....................90
Adjusting (manually )........................ 89
Adjusting the 4-way lumba rsup-
por t.................................................. 90
Adjusting the head restraint ............90
Cleaning the cover .........................258
Correct driver's seat position ........... 88
Important safety notes ....................89
Seat heating problem ......................91
Storing settings (memory func-
tion) ................................................. 96
Switching AIRSCARF on/off ............91
Switching sea theating on/off .........90
Sensors (cleaning instructions) .......257
Service see ASSYST PLUS service interval
display
Service Centre
see Qualified specialist workshop
Service menu (on-board computer) .190
Service products Brake fluid ..................................... 308
Coolant (engine) ............................ 308
Engine oil ....................................... 307
Fuel ................................................ 303
Important safety notes ..................303
Washer fluid .................................. .309 Index
15

R
a narrow vehicle travelling in front, e.g. a
motorbike
R a vehicle travelling in front on a different
line 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 not give
warnings or intervene in critical situations.
There is a ris kofanaccident. Always pay
careful attention to the traffi csituation and be
ready to brake.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent a col-
lision, you must apply the brakes yourself.
X To activate/deactivate: activate or deac-
tivate PRE-SAFE ®
Brake in the on-board
computer (Y page 189).
The Ä symbol appears in the multifunc-
tion display as long as the HOL Dfunction
is not activated (Y page 165).
On vehicles with parking guidance, the
Ä symbol is displayed when Pis
engaged or you are driving faste rthan
35 km/h.
Vehicles with COMAND and navigation sys-
tem: the radar sensor system is switched off
automatically in the vicinity of radio telescope
facilities (Y page 312).
Vehicles without COMAND and a navigation
system and vehicles for Australia: the radar
sensor system and on-board computer must
be switched off in the vicinity of radio tele-
scope facilities (Y page 194).
For PRE-SAFE ®
Brake to assist you when driv-
ing, the radar sensor system must be
switched on (Y page 194) and be opera-
tional.
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 slow speeds where there is no visible
damage to the front of the vehicle. Anti-theft systems
Immobiliser
The immobiliser prevents your vehicle from
being started without the correct key.
X To activate with the key: remove the key
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.
i The immobiliser is always deactivated
when you start the engine. ATA (Anti-Theft Alarm system)
Av isual and audible alarm is triggered if the
alarm system is primed and you open:
R a door
R the vehicle with the emergency key ele-
ment
R the boot lid
R the bonnet
R the glove compartment
R the stowage space under the armrest
The alarm is not switched off, even if you
close the open door that has triggered it, for
example. Anti-theft systems
61Safety Z

Permanent SPEEDTRONIC
You can use the on-board computer to limit
the speed permanently to avalue between
160 km/h(e.g. for driving on winter tyres) and
the maximum speed ( Ypage 193).
Shortly before the store dspeed is reached, it
appears in the multifunction display.
Permanent SPEEDTRONIC remains active,
even if variable SPEEDTRONIC is deactivated.
You cannot exceed the stored limit speed,
even if you depress the accelerator pedal
beyond the pressure point (kickdown). DISTRONIC PLUS
Important safety notes DISTRONIC PLUS regulates the speed and
automatically helps you maintain the dis-
tance to the vehicle detected in front. DIS-
TRONIC PLUS brakes automatically so that
the set speed is not exceeded.
On long and steep downhill gradients, espe-
cially if the vehicle is laden, you must select
shift range
1,2or 3in good time. By doing
so, you will make use of the braking effec tof
the engine .This relieves the load on the brake
system and prevents the brakes from over-
heating and wearing too quickly.
If DISTRONIC PLUS detects a slower-moving
vehicle in front, your vehicle is braked in order
to maintain the preset distance to the vehicle
in front. G
WARNING
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. G
WARNING
DISTRONIC PLUS is only an aid designed to
assist driving. The driver remains fully respon-
sible for the vehicle's distance from other
vehicles, the vehicle's speed and for braking
in good time. DISTRONIC PLUS does not react in particular
to:
R
pedestrians
R stationary obstacles on the road, e.g. stop-
ped or parked vehicles
R oncoming and crossing traffic
DISTRONIC PLUS may not detect narrow vehi-
cles driving in front,e .g. motorcycles, or vehi-
cles driving on a different line. Therefore,
always pay attention to traffic conditions even
when DISTRONIC PLUS is activated. Other-
wise, you may fail to recognise dangers in
time, cause an accident and injure yourself
and others. G
WARNING
DISTRONIC PLUS cannot take account of road
and traffic conditions. If DISTRONIC doe snot
recognise or no longer recognises the vehicle
in front, do not activate DISTRONIC or, if it is
already active, deactivate it. This is especially
the case:
R before corners
R on filter lanes
R when changing to a lane with faster moving
traffic
R in complex driving situations or where lanes
are diverted, e.g. at roadworks on a motor-
way
DISTRONIC PLUS otherwise maintains the
current speed set by you or accelerates up to
the set speed.
DISTRONIC PLUS cannot take account of
weather conditions. Deactivate, or do not
activate, DISTRONIC PLUS:
R if the roads are slippery, snow-covered or
icy. The wheels could lose their grip when
braking or accelerating. The vehicle could
start to skid.
R if the sensors are dirty or there is poor vis-
ibility, e.g. due to snow, rain or fog. Dis-
tance control may be impaired.
Always pay attention to traffic conditions
even when DISTRONIC PLUS is activated. 156
Driving systemsDriving and parking

The vehicle is not locked until the HOLD func-
tion is deactivated.
i If the engine has been switched off, it
cannot be started again until the HOLD
function has been deactivated. PARKTRONIC
Important safety notes G
WARNING
PARKTRONIC is only an aid and may not
detect all obstacles. It is not a substitute for
attentive driving.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. You could otherwise endanger
yourself and others. G
WARNING
Make sure that no persons or animals are in
the manoeuvring range. Otherwise, they
could be injured.
PARKTRONIC is an electronic parking aid with
ultrasonic sensors. It indicates visually and
audibly the distance between your vehicle
and an object.
PARKTRONIC is activated automatically if
you:
R switch on the ignition
R shift to position D,Ror Non vehicles with
automatic transmission
R release the electric parking brake
PARKTRONIC is deactivated at speeds above
18 km/h. It is reactivated at lower speeds.
PARKTRONIC monitors the area around your
vehicle using six sensors in the frontb umper
and four sensors in the rear bumper. :
Example: sensors in the front bumper,
left-hand side
Range of the sensors General notes
The sensors must be free of dirt, ice and
slush
.Otherwise, they may not functio ncor-
rectly. Clean the sensors regularly, taking
care not to scratch or damage them
(Y page 257). Side view
Top view Driving systems
167Driving and parking Z

Fron
tsensors Centre approximately 10
0cm Corners approximately 60 cm
Rea
rsensors Centre approximately 12
0cm Corners approximately 80 cm
!
When parking, pay particula rattention to
objects above or below the sensors, such
as flower pots or trailer drawbars. PARK-
TRONIC does not detect such objects when
they are in the immediate vicinity of the
vehicle. You could damage the vehicle or
the objects.
The sensors may not detect snow and
objects which absorb ultrasonic sources.
Ultrasonic sources, such as an automatic
car wash, a lorry's compressed-air brakes
or a pneumati cdrill, coul dcause PARK-
TRONIC to malfunction.
PARKTRONIC may no tfunction correctly on
uneven terrain.
Minimum distance Centre approximately 20 cm
Corners approximately 15 cm
If there is an obstacle within this range, the
relevan
twarning displays light up and a warn-
ing tone sounds. If th edistance falls below
the minimum, the distanc emay no longer be
shown.
Warning displays The warning displays show the distance
between the sensors and th eobstacle. The
warning display for the fron tarea is located
on the dashboard above the centre air vents.
The warning display for the rear area is loca-
ted between the roll bars. Warning display for the front area
:
Segments on the left-hand side of the
vehicle
; Segments on the right-hand side of the
vehicle
= Segments showing operational readiness
The warning display for each side of the vehi-
cle is divided into five yellow and two red seg-
ments. PARKTRONIC is operational if yellow
segments showing operational readiness =
light up.
The gearl ever position or the transmission
position of the automatic transmission and
the direction in which the vehicle is rolling
determine which warning display is active
when the engine is running.
Manual transmission: Gear lever posi-
tion Warning display
Forwards gear
or
Neutral
Front area activated
Reverse gear
, or
the vehicle is rolling
backwards Rear and front areas
activated168
Driving systemsDriving and parking

Problems with PARKTRONIC
Problem Possible causes/consequences and
M Solutions
Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds,
and the indicator lamp
in the PARKTRONIC
button lights up. PARKTRONIC has malfunctioned and has switched off.
X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds. The PARKTRONIC sensors are dirty or there is interference.
X
Cleant he PARKTRONIC sensors (Y page 257).
X Switch the ignition back on. The problem may be caused by an external source of radio or
ultrasound waves.
X
See if PARKTRONIC functions in a different location. Parking Guidance
Important safety notes Parking Guidance is an electronic parking aid
with ultrasound. Ultrasound is used to meas-
ure the road on both sides of the vehicle. A
suitable parking space is indicated by the
parking symbol. You receive steering instruc-
tions when parking. You may also use PARK-
TRONIC (Y
page 167). G
WARNING
Parking Guidance is merely an aid and may
recommend parking spaces that are not suit-
able for parking. For example, these might be
spaces where parking is prohibited, drive-
ways, unsuitable surfaces, etc.
Parking Guidance measures the parking
space as you drive past it. Any later changes
to the parking space are not taken into
account. For instance, this may be the case when the vehicle parked in front of or behind
the space changes its position or when an
obstacle is moved into the parking space.
Parking Guidance does not relieve you of the
responsibility for paying attention. If you rely
solely on Parking Guidance, you could cause
an accident and injure yourself and others.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. G
WARNING
Objects located above the height range of
Parking Guidance will not be detected when
the parking space is measured. These are not
taken into account when the parking proce-
dure is calculated, e.g. overhanging loads, tail
sections or loading ramps of goods vehicles.
In some circumstances, Parking Guidance 170
Driving systemsDriving and parking

Display messages Possible causes/consequences and
M Solutions
PRE-SAFE
Functions cur‐
rently limited See
Owner's Manual G
Risk of accident
PRE-SAFE ®
Brake is temporarily inoperative. Possible causes:
R the DISTRONIC PLUS cover in the radiator grille is dirty.
R function is impaired due to heavy rain or snow.
R the sensors in the bumpers are dirty.
R the rada rsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
R AMG vehicles: ESP ®
is inactive.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Engage the electric parking brake.
X Clean the DISTRONIC PLUS cover in the radiator grille
(Y page 257).
X Clean the bumpers (Y page 257).
X Restart the engine.
X AMG vehicles: reactivate ESP ®
(Y page 57).
If the system detects that the sensors are fully operational, the
display message disappears.
PRE-SAFE ®
Brake is operational again. PRE-SAFE
Functions limited
See Owner's Manual G
Risk of accident
PRE-SAFE ®
Brake is faulty. BASP LUS or the distance warning sig-
nal may also have failed.
X Visit a qualified specialist workshop. 6
Restraint
sys. mal‐
function Consult
workshop G
Risk of injury
There is a malfunction in the SRS (Supplemental Restraint Sys-
tem). The 6warning lamp also lights up in the instrument clus-
ter.
X Visit a qualified specialist workshop. Display messages
207On-board computer and displays Z