2018 MERCEDES-BENZ SL CLASS child restraint

Brake fluid
Displa ym essage ............................ 184
Note s. ............................................ 293
Brake forc ed istribution
see EBD (electroni cb rake force
distribution)
Brake lamps
Adaptive ........................................... 60
Displa ym essage ............................ 189
Brakes
ABS .................................................. 57
Adaptive Brake Assist ...................... 59
BAS .................................................. 57
Brake fluid (notes) ......................... 293
Displa ym essage ............................ 179
EBD .................................................. 63
High-performance brake system .... 137
Important safety notes .................. 136
Maintenance .................................. 137
Parking brake ................................ 132
Riding tip s. ..................................... 136
Warning lamp ................................. 204
Breakdow na ssistance
Reflective safety jacke t. ................. 244
Where will If ind...? ........................ 244
see Fla tt ire
see Towing away
Brightness contro l( in strument
cluste rl ig hting) ................................... 32
Bulbs
see Replacing bulbs
C
California
Important notic ef or retail cus-
tomers and lessees .......................... 24
Calling up am alfunction
see Displa ym essages
Car
see Vehicle
Care
Ca rw as h. ....................................... 238
Exhaus tp ip e. ................................. 243
Exterior lights ................................ 242
Matte finish ................................... 240
Note s. ............................................ 238
Paint .............................................. 240 Power washe r. ............................... 239
Rear vie wc amera .......................... 242
Sensors ......................................... 242
Washing by hand ........................... 239
Wheel s. .......................................... 241
Window s. ....................................... 241
Wipe rb lade s. ................................. 241
CD
see also Digital Operator's Man-
ua l. ................................................. 211
CD player (on-board computer) ........ 169
Cente rc on sole
Lower section .................................. 35
Upper section .................................. 34
Central locking
Automati cl oc king (on-board com-
puter) ............................................. 173
Locking/unlocking (SmartKey ). ....... 65
Changin gb ulbs
Sid em arker lamps (rear) ............... 101
Child
Restraint system .............................. 55
Child seat
Forward-facing restraint system ...... 56
On the front-passenger sea t. ........... 55
Rearward-facing restraint system .... 56
Children
Specia ls ea tb el tr etractor ............... 54
Childre nint he vehicle
Important safety notes .................... 53
Cigarette lighter ................................ 223
Cleaning
Mirror turn signa l. .......................... 242
Climate control
Air-conditioning system ................. 104
Automati cc limate control (dual-
zone) .............................................. 106
Controlling automaticall y. .............. 109
Cooling with ai rd ehumidifica tion .. 108
Defrosting the window s. ................ 111
Defrosting the windshield .............. 110
Genera ln otes ................................ 104
Indicato rl am p. ............................... 109
Information abou tu si ng auto-
mati cc limate control ..................... 107
Ma xi mu mc ooling .......................... 111
Note sonu si ng the air-condition-
ing system ..................................... 1056
Index

Messages
see Display messages
Mirrors
see Exterior mirrors
see Rear-view mirror
Mobile phone
Connecting (Bluetooth ®
inter-
face) ............................................. .2 15
Connecting (device manager) ....... .2 16
Frequencies ................................... 288
Installatio n. .................................... 288
Menu (on-board computer) ............ 169
Transmissio no utput (maximum ). ... 288
Modifying the programming
(SmartKey) .......................................... .6 6
MOExtended tires .............................. 247
Mountin gw heels
Lowering the vehicl e. ..................... 284
Mounting an ew whee l. .................. 283
Preparing the vehicl e. ................... .2 81
Raising the vehicle ......................... 281
Removing aw heel .......................... 283
Securing the vehicle against roll-
ing away ........................................ 281
MP3
Operation ....................................... 169
see also Digita lO perator's Man-
ua l. ................................................ .2 11
Multifunctio nd isplay
Function/notes ............................ .1 65
Permanent displa y. ........................ 172
Multifunctio ns teering wheel
Operating the on-board computer .. 164
Overview .......................................... 33
Multimedia system
Switching on and off ..................... .2 12
Music files
see also Digita lO perator's Man-
ua l. ................................................. 211
N
Navigation
Entering ad es tination .................... 213
Menu (on-board computer) ............ 167
see also Digital Operator's Man-
ua l. ................................................. 211 Navigation menu
Important safety notes .................. 167
NECK-PRO hea dr estraints
Important safety notes .................... 52
Operation ......................................... 52
Resetting triggered .......................... 53
Note sonb reaking-i nan ew vehi-
cle ....................................................... 115
O Occupant Classification System
(OCS)
Conditions ....................................... 46
Faults ............................................... 49
Operation ......................................... 46
System self-test ............................... 48
Occupant safety
Air bags ........................................... 43
Automati cm easures afte rana cci-
dent ................................................. 53
Bel tw ar ning ..................................... 42
Childre nint he vehicl e. .................... 53
Important safety notes .................... 38
Introduction to the restraint sys-
tem .................................................. 38
Occupant Classification System
(OCS) ............................................... 45
PASSENGER AIR BAG indicator
lamps ............................................... 39
Pets in the vehicl e. .......................... 56
PRE-SAFE ®
(anticipatory occu-
pant protection) ............................... 53
Restraint system warning lamp ........ 38
Sea tb el t. ......................................... 39
OCS
Conditions ....................................... 46
Faults ............................................... 49
Operation ......................................... 46
System self-test ............................... 48
Odometer ........................................... 166
Oil
see Engine oil
On-board computer
AMG menu ..................................... 175
Assistance menu ........................... 170
Audio menu ................................... 168
Convenience submenu .................. 174 Index 13

Panic alarm X
To activate: press 3 button C for at
least one second.
Av isual and audible alarm is triggered if the
alarm system is armed. X
To deactivate: press 3 button C again.
or X
Insert the SmartKey into the ignition lock.
or X
Press the KEYLESS-GO Start/Stop button.
The KEYLESS-GO key must be in the vehicle.
Occupant safety
Introduction to the restraint system The restraint system can reduce the risk of vehi-
cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
The restraint system can also reduce the forces
to which vehicle occupants are subjected during
an accident.
The restraint system comprises: R
Seat belt system R
Air bags
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all
vehicle occupants: R
have fastened their seat belts correctly
( Y
page 41)R
have the seat and head restraint adjusted
properly ( Y
page 84)
As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct
driver's seat position ( Y
page 84). You also have to make sure that an air bag can
inflate properly if deploye d( Y
page 43).
An air bag supplements ac orrectly worn seat
belt. As an additional safety device, the air bag
increases the level of protection for vehicle
occupants in the event of an accident. For exam-
ple, if, in the event of an accident, the protection
offered by the seat belt is sufficient, the air bags
are not deployed. When an accident occurs, only
the air bags that increase protection in that par-
ticular accident situation are deployed. How-
ever, seat belts and air bags generally do not
protect against object sp enetrating the vehicle
from the outside.
Information on restraint system operation can
be found under "Triggering of the Emergency
Tensioning Devices and air bags" ( Y
page 50).
See "Children in the vehicle" for information on
children traveling with you in the vehicle as well
as on child restraint systems ( Y
page 53).
Important safety notes
G WARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an
accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even
fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify components of the
restraint system to accommodate ap erson with
disabilities, contact an authorized Mercedes-
Benz Center for details. USA only: for further
information contact our Customer Assistance
Center at 1-80 0F OR-MERCEDES
(1 ‑ 800 ‑ 367 ‑ 6372).
Mercedes-Benz recommends that you only use
driving aids which have been approved specifi-
cally for your vehicle by Mercedes-Benz.
Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and at38
Occupant safety
Safety

regular interval sw hile the engine is running.
Therefore, malfunctions can be detected in
good time.
The u restraint system warning lamp on the
instrument cluster lights up when the ignitio ni s
switched on. It goes out no later than af ew sec-
onds after the vehicl eiss tarted. The compo-
nents of the restraint system are in operational
readiness.
Am alfunction has occurred if the u restraint
system warning lamp: R
does not light up after the ignitio niss witched
on R
does not go out after af ew seconds with the
engine running R
lights up again while the engine is running
G WARNING
If the restraint system is malfunctioning,
restraint system components may be trig-
gered unintentionally or may not deploy as
intended during an accident. This can affect
for exampl et he Emergency Tensioning
Device or the air bag .T his poses an increased
risk of injury or even fatal injury.
Have the restraint system checked and
repaired in aq ualified specialist workshop as
soon as possible.
PASSENGER AI RB AG indicator lamp
PASSENGER AIR BAG ON indicator lamp C and
PASSENGER AIR BAG OFF indicator lamp D are
part of the Occupant Classification System
(OCS). The indicator lamp sd isplay the status of the
front-passenge rf ront air bag. R
PASSENGER AIR BAG ON lights up for 60 sec-
onds, subsequently both indicator lamp sa re
off (PASSENGER AIR BAG ON and OFF): the
front-passenge rf ront air bag is abl etod eploy
in the event of an accident. R
PASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deploye dint he event of an acci-
dent.
If the PASSENGER AIR BAG ON indicator lamp is
off, only the PASSENGER AIR BAG OFF indicator
lamp shows the status of the front-passenger
front air bag .T he PASSENGER AIR BAG OFF
indicator lamp may be lit continuously or be off.
Depending on the person in the front-passenger
seat, the front-passenge rf ront air bag must
either be deactivated or enabled; see the fol-
lowing points. You must make sure of this both
before and during aj ourney.R
Children in ac hil dr estraint system:
whethe rt he front-passenge rf ront air bag is
enabled or deactivated depends on the instal-
led child restraint system, and the age and
size of the child .T herefore, be sure to observe
the notes on the "Occupant Classification
System (OCS)" ( Y
pag e4 5) and on "Chil-
dren in the vehicle" ( Y
pag e5 3). There you
wil la ls of ind instructions on rearward and
forward-facing child restraint systems on the
front-passenge rs eat. R
All other persons: depending on the classi-
ficatio noft he person in the front-passenger
seat, the front-passenge rf ront air bag is ena-
bled or deactivated ( Y
pag e4 5). Be sure to
observe the notes on "Seat
belts“ ( Y
pag e3 9) and "Air bags"
( Y
pag e4 3) .T here you can als of ind infor-
mation on the correct seat position.
Seat belts
Introduction
Seat belts are the most effective means of
restricting the movement of vehicl eo ccupants
in the event of an accident or the vehicl er olling
over. This reduces the risk of vehicl eo ccupants
coming into contact with parts of the vehicle
interior or being ejected from the vehicle. Fur-
thermore, the seat belt help stok eep the vehicleOccupant safety 39
Safety Z

occupant in the best position in relation to the
air bag.
The seat belt system comprises: R
Seat belts R
Emergency Tensionin gD evices and seat belt
force limiters
If the seat belt is pulled quickly or sharply by the
seat belt guide, the inertia reel locks. The belt
strap cannot be extracted any further.
The Emergency Tensionin gD evice tighten st he
seat belt in an accident ,p ulling the belt close
against the body. However it does not pull the
vehicle occupant back in the direction of the
backrest.
The Emergency Tensionin gD evice does not cor-
rect an incorrect seat position or the routing of
an incorrectly fastened seat belt.
When triggered, as eat belt force limiter helps to
reduce the force exerted by the seat belt on the
vehicle occupant.
The seat belt force limiters are synchronized
with the front air bags which absorb part of the
deceleration force. This can reduce the force
exerted on the vehicle occupant sd uring an acci-
dent.
! If the front-passenger seat is not occupied,
do not engage the seat belt tongue in the
buckle on the front-passenger seat. Other-
wise, in the event of an accident the Emer-
gency Tensionin gD evice and the side impact
air bag, in addition to other systems, may be
triggered and have to be replaced.
Important safety notes The use of seat belts and child restraint systems
is required by law in: R
all 50 states R
the U.S. territories R
the District of Columbia R
all Canadian provinces
Even where this is not required by law, all vehicle
occupant ss hould correctly fasten their seat
belts before starting the journey.
G WARNING
If the seat belt is not worn correctly, it cannot
perform its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci- dent or when braking or changing direction
abruptly. This poses an increased risk of injury
or even fatal injury.
Always ensure that all vehicle occupant sh ave
their seat belts fastened correctly and are sit-
ting properly.
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all
vehicle occupants: R
have fastened their seat belts correctly
( Y
page 41) R
have the seat and head restraint adjusted
properly ( Y
page 84)
G WARNING
The seat belt does not offer the intended level
of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident ,y ou could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal
injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
G WARNING
Persons less than 5ft( 1.50 m) tall cannot
wear the seat belt correctly without an addi-
tional and suitable restraint system. If the
seat belt is not worn correctly, it cannot per-
form its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury
or even fatal injury.
For this reason, alway ss ecure persons under
5ft( 1.50 m) tall in suitable additional restraint
systems.40
Occupant safety
Safety

If ac hild younger than twelve years old and
under 5ft( 1.5 0m)inh eight is travelin gint he
vehicle: R
always secur et he child in ac hild restraint
system suitable for this Mercedes-Ben zv ehi-
cle. The child restraint system must be appro-
priat etot he age, weight and size of the child.R
always observe the instructions and safety
notes on "Children in the vehicle"
( Y
page 53) in addition to the child restraint
system manufacturer' si nstallation and oper-
atin gi nstructionsR
always observe the instructions and safety
notes on the "Occupant classification system
(OCS)" ( Y
page 45)
G WARNING
The seat belts may not perform their intended
protective function if: R
the ya re damaged, modified, extremely
dirty, bleache dord yedR
the seat belt buckle is damaged or
extremely dirty R
the Emergency Tensionin gD evices, belt
anchorage sori nertia reels have been modi-
fied.
Seat belts may be damaged in an accident,
althoug ht he damage may not be visible, e.g.
due to splinters of glass. Modifie dord amaged
seat belts may tear or fail, e.g. in an accident.
Modifie dE me rgency Tensionin gD evices
could accidentally trigger or fail to deploy
when necessary. This poses an increased risk
of injury or even fatal injury.
Never modif yt he seat belts ,E me rgency Ten-
sioning Devices, belt anchorage sa nd inertia
reels. Make sure that the seat belts are
undamaged, not worn out and clean .F ollow-
ing an accident ,h ave the seat belts checked
immediately at aq ualified specialist work-
shop.
Only use seat belts that have been approved for
your vehicle by Mercedes-Benz. Proper use of th es eat beltsObserve the safet yn otes on the seat belt
( Y
page 40).
All vehicle occupant sm ust be wearin gt he seat
belt correctly befor eb eginnin gt he journey. Also
make sure that all vehicle occupant sa re always
wearing the seat belt correctly while the vehicle
is in motion.
When fastenin gt he seat belt, always make sure
that: R
the seat belt buckle tongue is inserted only
int ot he belt buckle belonging to that seat R
the seat belt is pulled tigh ta cross your body
Avoid wearin gb ulky clothing ,e .g. aw inter
coat. R
the seat belt is not twisted
Only the nc an the forces which occur be dis-
tributed over the area of the belt. R
the shoulder section of the belt is routed
across the center of your shoulder
The shoulder section of the seat belt should
not touc hy our nec korber outed under your
arm or behin dy our back. R
the lap belt is taut and passes across your lap
as low down as possible
The lap belt must always be routed across
your hip joints and not across your abdomen.
This applies particularly to pregnant women.
If necessary, push the lap belt down to your
hip join ta nd pull it tigh tu sing the shoulder
section of the belt. R
the seat belt is not routed across sharp, poin-
ted or fragile objects
If you have such item sl ocated on or in your
clothing ,e .g. pens ,k eys or eyeglasses ,s tore
these in as uitable place. R
only one perso nisu sing as eat belt
Infant sa nd children must never travel sitting
on the lap of av ehicle occupant .Int he event
of an accident ,t he yc ould be crushed
betwee nt he vehicle occupant and seat belt. R
object sa re never secured with as eat belt if
the seat belt is also bein g used by one of the
vehicle's occupants
Also ensure that there are never objects
betwee nap erso na nd the seat, e.g. cushions.
Seat belts are only intended to secur ea nd
restrain vehicle occupants. Always observe the
notes in the "Stowage options/compartments"
section for securing objects, luggage or loads
( Y
page 219).Occupant safety 41
Safety Z

If the driver or front passenger unfasten their
seat belts during the journey, the seat belt warn-
ing is activated again.
Air bags
Introduction The installation point of an air bag can be rec-
ognized by the AIRBAG marking.
An air bag complements the correctly fastened
seat belt. It is no substitute for the seat belt. The
air bag provide sa dditional protection in appli-
cable accident situations.
Not all air bags are deployed in an accident. The
different air bag systems function independ-
ently from one another ( Y
page 50).
However, no system available today can com-
pletel ye liminate injuries and fatalities.
It is also not possible to rule out ar isk of injury
cause dbyana ir bag due to the high speed at
which the air bag must be deployed.
Important safety notes
G WARNING
If you do not sit in the correct seat position,
the air bag cannot protect as intended and
could even cause additional injury when
deployed .T his poses an increased risk of
injury or even fatal injury.
To avoid hazardous situations, always make
sure that all of the vehicle's occupants: R
have fastened their seat belts correctly,
including pregnant women R
are sitting correctly and maintain the great-
est possible distance to the air bags R
follow the following instructions
Alway sm ake sure that there are no objects
between the air bag and the vehicle's occu-
pants. R
Adjust the seats properl yb efore beginning
you rj ourney. Alway sm ake sure that the seat
is in an almos tu pright position. The center of the head restraint must support the head at
abou te ye level. R
Move the driver's and front-passenger seats
as far back as possible. The driver's seat posi-
tion must allow the vehicle to be driven safely. R
Only hold the steering wheel on the outside.
This allows the air bag to be full yd eployed.R
Alway sl ea na gainst the backrest whil ed riv-
ing. Do not lea nf orward or lea na gainst the
door or side window .Y ou may otherwise be in
the deployment area of the air bags. R
Alway sk eep you rf eet in the footwell in front
of the seat. Do not put you rf eet on the dash-
board ,f or example .Y our feet may otherwise
be in the deployment area of the air bag. R
For this reason, always secure persons less
than 5f t( 1.5 0m )t all in suitable restraint sys-
tems. Up to this height, the seat belt cannot
be worn correctly.
If ac hil dist raveling in your vehicle, also
observe the following notes: R
Alway ss ecure childre nu nder twelve years of
age and less than 5f t( 1.50 m) tal lins ui table
child restraint systems. R
Onl ys ec ur eac hild in ar earward-facing child
restraint syste mont h e front-passenge rs e a t
when the front-passenge rf ront ai rb ag is
deactivated .Ift he PASSENGER AIR BAG OFF
indicator lamp is permanentl yl it ,t he front-
passenge rf ront ai rb ag is deactivated
( Y
page 39). R
Alway so bser ve the instructions and safety
note sont he "Occupant Classification System
(OCS) "( Y
page 45) and on "Children in the
vehicle" ( Y
page 53 )i na ddit io ntot he child
restraint syste mm an ufacturer's installation
and operating instructions.
Objects in the vehicle interior may prevent
an air bag fro mf unctionin gc or rectly. Before
startin gy ou rj ourney and to avoi dr isks resulting
fro mt he spee doft he ai rb ag as it deploys, make
sure that: R
there ar enop eople, animals or objects
between the vehicl eo ccupants and an ai rb agR
there ar enoo bj ects between the seat, door
and B-pillar R
no accessories, such as cup holders, are
attache dtot he vehicl ew it hi nt he deploymentOccupant safety 43
Safety Z

The system does not deactivate: R
the side impact air bag R
the headbag R
the Emergency Tensionin gD evices
Requirements To be classified correctly, the front passenger
must sit: R
with the seat belt fastened correctly R
in an almost upright position with their back
against the seat backrest R
with their feet restin gont he floor, if possible
If the front passenger does not observe these
conditions, OCS may produce af alse classifica-
tion, e.g. because the front passenger: R
transfers their weight by supporting them-
selves on av ehicle armrestR
sits in such aw ay that their weight is raised
from the seat cushion
If you install ac hild restraint system on the
front-passenger seat, be sure to observe the
correc tp ositionin goft he child restraint system.
Never place object su nder or behind the child
restraint system, e.g. ac ushion. The entir eb ase
of the child restraint system must alway sr est on
the seat cushion of the front-passenger seat.
The backrest of the forward-facing child
restraint system must lie as flat as possible
against the backrest of the front-passenger
seat.
The child restraint system must not touch the
roof or be subjected to al oad by the head
restraint. Adjust the angle of the seat backrest
and the head restraint position accordingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint sys-
tem manufacturer's installation and operating
instructions. Occupant Classification System opera-
tion (OCS)
C
PASSENGER AIR BAG ON indicator lamp D
PASSENGER AIR BAG OFF indicator lamp
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled. X
Press the Start/Stop button once or twice, or
turn the SmartKey to position G or H in the
ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF and PASSENGER
AIR BAG ON indicator lamps must light up simul-
taneously for approximately six seconds.
The indicator lamps display the status of the
front-passenger front air bag. R
PASSENGER AIR BAG ON lights up for 60 sec-
onds, subsequently both indicator lamps are
off (PASSENGER AIR BAG ON and OFF): the
front-passenger front air bag is able to deploy
in the event of an accident. R
PASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deployed in the event of an acci-
dent.
If the PASSENGER AIR BAG ON indicator lamp is
off, only the PASSENGER AIR BAG OFF indicator
lamp shows the status of the front-passenger
front air bag. The PASSENGER AIR BAG OFF
indicator lamp may be lit continuously or be off.
If the status of the front-passenger front air bag
changes while the vehicle is in motion ,ana ir bag
display message appears in the instrument clus-
ter ( Y
page 187). When the front-passenger
seat is occupied, alway sp ay attention to the
PASSENGER AIR BAG OFF indicator lamp. Be
aware of the status of the front-passenger front
air bag both before and during the journey.46
Occupant safety
Safety