2012 MERCEDES-BENZ SLK ROADSTER belt

Automatic headlamp mode
..............101
Automatic transmission Accelerator pedal position .............138
Automatic drive program ...............139
Changing gea r............................... 137
Display message ............................ 220
Driving tips .................................... 138
Emergency running mode ..............142
Kickdow n....................................... 138
Manual drive program ....................140
Problem (fault) ............................... 142
Progra mselecto rbutton ................ 138
Pulling away ................................... 130
Releasing the parking lock man-
ually ............................................... 142
Selector leve r................................ 137
Shift range s................................... 139
Starting the engine ........................129
Steering wheel gearshift paddle s... 139
Transmission position displa y........ 137
Transmission positions ..................137
Automatic transmission emer-
gency running mode .........................142 B
BAS (Brake Assist System) .................54
Basic settings see Settings
BAS PLUS (Brake Assist System
PLUS) .................................................... 54
Battery (key) Checking .......................................... 69
Important safety notes ....................68
Replacing ......................................... 69
Battery (vehicle)
Charging ........................................ 275
Connecting .................................... 275
Disconnecting ................................ 274
Display message ............................ 212
Important safety notes ..................273
Jump starting ................................. 277
Location ......................................... 274
Removing/fitting ........................... 275
Belt
see Seat belt
Belt force limiters (activation) ...........39Belt tensioner
Activation ......................................... 39
Function .......................................... .46
Bonnet
Active bonne t(pedestrian protec-
tion )............................................... 248
Closing .......................................... .249
Display message ............................ 220
Opening ......................................... 248
Boot
Emergency release ..........................75
Important safety notes ....................73
Opening (automatically from out-
side) ................................................ .74
Boo tlid
Display message ............................ 220
Opening/closing .............................. 73
Opening dimensions ......................311
Boot separator
Display message ............................ 220
General notes .................................. 80
Opening/closing .............................. 81
Bottle holder ...................................... 239
Brake Assist System see BAS (Brake Assist System)
Brake fluid
Display message ............................ 206
Notes ............................................. 308
Brake lamps
Adaptive .......................................... .56
Display message ............................ 209
Brakes
ABS .................................................. 54
BAS .................................................. 54
BAS PLUS ........................................ 54
Brake fluid (notes) .........................308
Display message ............................ 200
Driving tips .................................... 148
High-performance brake system ....149
Important safety notes ..................148
Parking brake ................................ 147
Warning lamp ................................. 226
Breakdown
see Flat tyre
see Towing away/tow-starting
Bulbs
see Changing bulbs Index
5

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

Warning and indicator lamps
Function Page
:
L
Dipped-bea mhead-
lamps 101
;
K
Main-beam headlamp 103
=
÷
ESP® 228
?
!
Electric parkin gbrake
(red) 226
A
!
Electric parking brake
(yellow) 226
B
·
Distance warning 233
C
#!
Turn signals 103
D
h
Tyre pressure monitor 233
E
6
SRS 230
F
ü
Seat belt 224 Function Page
G
%
Diesel engine: pre-
glow 129
M
SPORT handling
mode in AMG vehicles 229
H
?
Coolant 231
I
R
Rearf oglamp 102
J
N
Front foglamps 101
K
;
Engine diagnostics 231
L
8
Reserve fuel 231
M
å
ESP®
OFF 228
N
!
ABS 226
O
J
Brakes 22630
Instrument clusterAt a glance

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviations are possible. Please
note that your vehicle may not be equipped
with all features described. This also
applies to safety-relevan tsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 22).Occupant safety
Important safety notes
The seat belts, together wit hSRS (Supple-
mental Restrain tSystem), are complemen-
tary, co-ordinated restrain tsystems
(Y page 39). They reduce the ris kofinjury
in specific, pre-defined types of accident sit-
uations and thereby increase occupant
safety .However, seat belts and airbags gen-
erally do not protec tagainst objects pene-
trating the vehicle from the outside.
To ensure that the restraint systems can
deliver their full potential protection, make
sure that:
R the seat and head restraint are adjusted
properly (Y page 88).
R the seat belt has been fastened properly
(Y page 45).
R the airbags can inflate unrestricted if
deployed (Y page 40).
R the steering wheel is adjusted properly
(Y page 88).
R the restraint systems have not been modi-
fied.
i An airbag increases the protection of
vehicle occupants wearing a seat belt.
However, airbags are only an additional
restraint system which complements, but
does not replace, the seat belt. All vehicle occupants must wear their seat belt cor-
rectly at all times, even if the vehicle is
equipped with airbags. The airbags are not
deployed in all types of accidents. For
example, if the protective capacity of cor-
rectly fastened seat belts is not increased
by deploying the airbags, the airbags will
not deploy. Airbag deployment only pro-
vides increased protection if the seat belt
is worn correctly because:
R
the seat belt helps to keep the vehicle
occupant in the best position in relation
to the airbag.
R in a head-on collision, for example, the
seat belt prevents the vehicle occupant
from being propelled towards the point
of impact. It can thus reduce the risk of
injury.
In accidents in which an airbag is deployed,
it provides increased protection only if the
seat belt is worn correctly. G
WARNING
If service work is not carried out correctly, the
operating safety of your vehicle may be affec-
ted. This could cause you to lose control of
your vehicle and cause an accident .More-
over, the safety systems may no longer be
able to protect you or others as they are
designed to do.
Always have service work carried out at a
qualified specialist workshop. G
WARNING
Modifications to or work performed incor-
rectly on the following parts can result in the
restraint systems not functioning as intended:
R the restraint system, consisting of seat
belts and their anchorage points, belt ten-
sioners, belt force limiters and airbags
R the wiring
R networked electronic systems
Airbags and belt tensioners could fail to
deploy or be triggered in an accident despite
the deceleration force being sufficient to trig-
ger the systems, or could be triggered unin- 38
Occupant safetySafety

tentionally. For this reason, never make any
modifications to the restraint systems.
Therefore, you must not tampe rwith elec-
tronic components or their software. SRS (Supplemental Restraint System)
Introduction SRS consists of:
R
the 6 SRS warning lamp
R airbags
R airbag control unit (with crash sensors)
R belt tensioners
R belt force limiters
SRS reduces the risk of occupants coming
into contact with the vehicle's interior in the
event of an accident. It can also reduce the
effect of the forces to which occupants are
subjected during an accident.
SRS warning lamp SRS functions are checked regularly when
you switch on the ignition and when the
engine is running. Therefore, malfunctions
can be detected in good time.
The 6 SRS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than a few seconds
after the engine is started. G
WARNING
If SRS is malfunctioning, individual systems
may be triggered unintentionally or might not
be triggered in the event of an accident with
a high rate of vehicle deceleration.
A malfunction has occurred if:
R the 6 SRS warning lamp does not light
up when the ignition is switched on.
R the engine is running and the 6SRS
warning lamp does not go out after a few
seconds.
R the engine is running and the 6SRS
warning lamp lights up again. In this case, have SRS checked immediately
at a qualified specialist workshop.
Triggering of belt tensioners, belt force
limiters and airbags During the firs
tstage of a collision, the airbag
control uni tevaluates important physical
data relating to vehicle deceleratio noraccel-
eration, such as:
R duration
R direction
R magnitude
Based on the evaluation of this data, the air-
bag control uni tpre-emptively triggers the
beltt ensioners in the first stage.
i The belt tensioners can only be triggered
if the seat belt tongues are correctly
engaged in the seat belt buckles.
If there is an even higher rate of vehicle decel-
eration or acceleration in a longitudinal direc-
tion, the fron tairbags are also deployed.
Your vehicle has adaptive, two-stage front air-
bags. The airbag control unit evaluates vehi-
cle deceleration or acceleration in the event
of a collision. In the firs tdeployment stage,
the fron tairbag is filled with enough propel-
lant gas to reduce the risk of injuries. The
front airbag is fully deployed if a second
deploymen tthreshold is exceeded within a
few milliseconds.
The belt tensioner and airbag triggering
thresholds are variable and are adapted to the
rate of deceleration or acceleration of the
vehicle. This process is pre-emptive in nature.
The triggering process must take place in
good time at the start of the collision.
i Airbags are not deployed in all types of
accidents. Also, not all airbags are
deployed together in an accident. The dif-
ferent airbag systems work independently
of each other. Occupant safety
39Safety Z

How the airbag system works is deter-
mined by the severity of the collision detec-
ted, especially the vehicle deceleration or
acceleration, and the apparent type of acci-
dent:
R
head-on collision
R side impact
R rea rimpact
R overturn
The rate of vehicle deceleratio noraccelera-
tion and the direction of the force are essen-
tially determined by:
R the distribution of forces during the colli-
sion
R the collisio nangle
R the deformation characteristics of the vehi-
cle
R the characteristics of the object with which
the vehicle has collided
Factors which can only be see nand measured
after a collision has occurred do not play a
decisive role in the deployment of an airbag,
nor do they provide an indicatio nofairbag
deployment.
The vehicle may be deformed significantly,
e.g. the bonnet or the wing, without an airbag
being deployed. This is the case if only parts
which are relatively easily deformed are affec-
ted and the rate of deceleration is not high.
Conversely, airbags may be deployed even
though the vehicle suffers only minor defor-
mation. This is the case if, for example, very
rigid vehicle parts such as longitudinal body
members are hit, and sufficien tdeceleration
occurs as a result. Airbags
Important safety notes Airbag deployment slows down and restricts
the movement of the vehicle occupant.
If the airbags are deployed, you will hear a
bang and a small amount of powder may also
be released. Only in rare cases will the bang affect your hearing. The powder that is
released generally does not constitute a
health hazard. The
6SRS warning lamp
lights up.
The airbag installation locations are identified
by the AIRBAG symbol. G
WARNING
Airbags provide additional protection; they
are not, however, a substitute for seat belts.
Observe the following notes to reduce the risk
of serious or even fatal injury caused by airbag
deployment:
R all vehicle occupants –inparticular, preg-
nant women – must wear their seat belt
correctly at all times and lean back against
the backrest, which should be positioned
as close to the vertical as possible. The
head restraint must support the back of the
head at about eye level.
R always secure childre nless than
1.50mt all or unde r12years of age in suit-
able child restraint systems.
R all vehicle occupants must select a seat
position that is as far away from the airbag
as possible. The driver's seat position must
allow the vehicle to be driven safely. The
driver's chest should be as far away from
the centre of the driver's airbag cover as
possible.
R move the front-passenger seat as far back
as possible. This is especially important if
you have secured a child in a child restraint
system on the front-passenger seat.
R vehicle occupants –inparticular, children
–m ust no tlean their heads into the area of
the window in which the sidebag/headbag
is deployed.
R rearward-facing child restraint systems
must not be fitted to the front-passenger
seat unless the front-passenger fron tair-
bag has been disabled. The front-passenger
front airbag is disabled if a child restraint
system with transponders for automatic
child seat recognition is fitted to the front-
passenger seat. The 4PASSENGER 40
Occupant safetySafety

They are deployed:
R at the start of an accident with a high rate
of vehicle acceleration or deceleration in a
longitudinal direction
R if the system determines that airbag
deployment can offer additional protection
to that provided by the seat belt
R if the seat belt is fastened
R independently of other airbags in the vehi-
cle
If the vehicle overturns, the front airbags are
generally not deployed. The fronta irbags are
deployed if the system detects high vehicle
deceleration in a longitudinal direction.
Front-passenger airbag ;is only activated if
the system detects that the front-passenger
seat is occupied. The _PASSENGER AIR-
BAG ON indicator lamp lights up for
60 seconds when the ignition is switched on.
The a PASSENGER AIRBA GOFF indicator
lamp on the centre console is not lit
(Y page 49). This means that a child
restraint system withou tautomatic child seat
recognition has been fitted to the front-
passenger seat, or a child restraint system
with automatic child seat recognition has
been fitted incorrectly.
! Do not place heavy objects on the front-
passenger seat .The system may then
detect that the seat is occupied and if there
is an accident, the restraint systems on the
front-passenger side could be deployed.
Have restraint systems that have been trig-
gered replaced.
Sidebags G
WARNING
If you wish to use seat covers, Mercedes-Benz
recommends that, for safety reasons, you
only use seat covers that have been approved
for Mercedes-Ben zvehicles.
The seat covers must have a special tear seam
for sidebags. Otherwise, the sidebags cannot
deploy correctly and would fail to provide the intended protection in the event of an acci-
dent. Appropriate seat covers can be
obtained, for example, from a Mercedes-Benz
Service Centre.
When deployed, the sidebags offer additional
protection for the thorax of the vehicle occu-
pants on the side of the vehicle on which the
impact occurs .However, they do not protect
the:
R head
R neck
R arms Sidebags
:deploy next to the outer seat
cushions.
The sidebags are deployed:
R on the side on which an impact occurs
R at the start of an accident with a high rate
of lateral vehicle deceleration or accelera-
tion, e.g. in a side impact
R independently of the use of the seat belt
R independently of the front airbags
R independently of the belt tensioners
If the vehicle overturns, the sidebags are gen-
erally not deployed. Exception :ifthe system
detects high vehicle deceleration or acceler-
ation in a lateral direction and determines
that deployment can offer additional protec-
tion to that provided by the seat belt. 42
Occupant safetySafety

Headbags
Headbags enhance the level of protection for
the head, but not the chest or arms, of the
vehicle occupants in the front of the vehicle
on the side on which the impact occurs.
Headbags
:deploy in the area of the side
windows at the front. They are deployed:
R at the start of an accident with a high rate
of lateral vehicle deceleratio noraccelera-
tion, e.g. in a side impact
R on the side on which an impact occurs
R on the driver's and the front passenger's
side if the vehicle overturns and the system
determines that windowbag deployment
can offer additional protection to that pro-
vided by the sea tbelt
R independently of the use of the seat belt
R regardless of whether the front-passenger
seat is occupied
R independently of the fron tairbags PRE-SAFE
®
(preventative occupant
protection)
PRE-SAFE ®
takes pre-emptive measure sto
protect occupants in certain hazardous sit-
uations. PRE-SAFE
®
intervenes:
R when BAS PLUS intervenes powerfully on
vehicles with DISTRONIC PLUS.
R if, on vehicles with DISTRONIC PLUS, the
radar senso rsystem detects an imminent
danger of collision in certain situations.
R in critical driving situations, e.g. when phys-
ical limits are exceeded and the vehicle
understeers or oversteers severely.
PRE-SAFE ®
takes the following measures
depending on the hazardous situation detec-
ted:
R the seat belts are pre-tensioned.
R the front-passenger seat is adjusted if it is
in an unfavourable position.
R if the vehicle skids, the side windows are
closed so that only a small gap remains.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pretensioning. Al lsettings made by
PRE-SAFE ®
can then be reversed.
If the seat belts are not released:
X Move the backrest or seat back slightly, but
only when the vehicle is stationary.
The belt pretensioning is reduced and the
locking mechanism is released.
! Make sure that there are no objects in the
footwell or behind the seats when moving
the seat back. There is a risk that the seats
and/or the objects could be damaged.
More information about seat-belt adjust-
ment ,aconvenience function integrated into
PRE-SAFE ®
, can be found in the "Seat-belt
adjustment" section (Y page 46). NECK-PRO head restraints
The NECK-PRO head restraints increase pro-
tection to the driver's and front passenger's
head and neck.T o this end, the NECK-PRO
head restraints on the driver's and front-
passenger seats are moved forwards and
upwards in the event of a rear-end collision of Occupant safety
43Safety Z