Warnin
gand indicator lamps Fun
ction Page
:
ESP
®
OFF 238
;
Diesel engine: preglow 136
=
Fron
tfoglamps 107
?
Rear foglamp 107
A
Turn signal 108
B
ESP
® 238
C
Distance warning lamp 242
D
Turn signal 108
E
Seat belt
236 Function Page
F
SRS 240
G
Engine diagnostics 240
H
Brakes 236
I
Coolant 241
J
ABS 238
K
Dipped-beam headlamps 107
L
Main-beam headlamps 108
M
Reserve fuel 241Instrument cluster
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Centre console
Coupé
Function Page
:
Hazard warning lamps 110
;
AT
Ai ndicator lamp 61
=
4
PASSENGER AIRBAG
OFF indicator lamp 46
?
Extend
sthe seat-belt
extender 41
A
COMAND APS/audi
osys-
tem ;see th eseparate oper-
atin ginstructions B
Adjusts the sea
theating 97
C
Seat ventilation 98
D
ECO start/sto
pbutton 1 138
E
PARKTRONIC
174 Function Page
F
Rear window roller sunblind 251
G
Dynamic driving package
with sports mode
172
H
Ashtray 252
Cigarett
elighter 252
Power socket 253
I
Gear lever 141
Selector lever 142
J
Stowage compartment 244
Cup holder 249
K
Stowage compartment 244
L
Audio/COMAND controller
M
Select
sthe driv eprogram 144
1
Only vehicles with ECO start/stop function. Centre console
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Cabriolet
Function Page
:
Hazard warning lamps 110
;
AT
Ai ndicator lamp 61
=
4
PASSENGER AIRBAG
OFF indicator lamp 46
?
Extend
sthe seat-belt
extender 41
A
COMAND APS/audi
osys-
tem ;see th eseparate oper-
atin ginstructions B
Adjusts the sea
theating 97
C
Seat ventilation 98
D
AIRSC
ARF 98
E
ECO start/stop button
1 138
F
PARKTRONIC 174
G
Retracts the rear seat head
restrain
ts 95 Func
tion Page
H
Dynamic driving package
wit
hsports mode 172
I
Ashtray 252
Cigar
ettelighter 252
Power socket 253
J
Gear lever 141
Selector lever 142
K
Stowage compartment 244
Cup holder 249
L
Stowage compartment 244
M
AIRCAP 84
N
Open
sand closes the side
windows 73
O
Ope
nsand closes the soft
top 77
P
Audio/COMAN
Dcontroller Q
Selec
tsthe driv eprogram 144
1
Only vehicles with ECO start/stop function. 28
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gered unintentionally
.Never carry out any
modifications on the restraint systems.
Never tamper with electronic components
and their software. SRS (Supplemental Restraint System)
Introd uction SRS reduces the risk of occupants coming
into contact with the vehicle's interio
rinthe
even tofana ccident. It can als oreduce the
effect of the forces to which occupant sare
subjected during an accident.
SRS consists of:
R 6 SRS warning lamp
R airbags
R airbag con trol unit (with crash sensors)
R belt tensioners
R belt force limiters
SRS warning lamp SRS func
tions ar echecked regularly when
you switc honthe ignition and when the
engin eisrunning. 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 afew seconds
after the engine is star ted. G
Risk of inju
ry
If SR Sism alfunctioning, individual systems
may be activated unintentionally or may not
be triggered in the event of an accident with
ah igh rate of vehicle deceleration.
Am alfunction has occurred if:
R the 6 SRS warning lamp does not light
up after the ignition is switched on.
R the engine is runnin gand the 6SRS
warning lamp doe snot go out after afew
seconds.
R the engine is runnin gand the 6SRS
warning lamp lights up again. In this case, have SRS checked immediately
at
aq ualified specialist workshop .Mercedes-
Benz recommends that you use aMercedes-
Benz Servic eCentr efor this purpose.
In particular ,work relevant to safet yoron
safety-related systems must be carried out at
aq ualified specialist workshop.
Triggering of belt tensioners, belt force
limiters and airbags In the event of
acollision ,the airbag con trol
unit evaluates important physical data relat-
ing to the vehicle deceleration or acceleration
during the first stage of the collision, such as:
R duration
R direction
R magnitude
Based on the evaluation of this data ,the air-
bag con trol unit pre-emptivel ytriggers the
belt tensioners in th efirst stage.
i The belt tensioners can only be triggered
if the seat belt tongues are correctly
engaged in the seat belt buckles.
The front airbags are also deployed if there is
an even higher rate of vehicle deceleration in
al ongitudinal direction.
Your vehicle has adaptive, dual-stage front
airbags. In the even tofacollision, the airbag
control unit evalu atesthe vehicle decelera-
tion. Whe nthe first deploymen tthreshol dis
reached, th efront airbag is fille dwith enough
gas to reduce the risk of injuries. The front
airbag is fully deployed if asecon ddeploy-
men tthreshold is exceeded withi nafew mil-
liseconds.
Th eb elt tensioner and airbag triggering
thresholds are variable and are adapted to the
rat eofd eceleration of the vehicle. This proc-
ess is pre-emptiv einnature. The triggering
process must take place in good time at the
start of the collision.
i Not all airbags are deployed in an acci-
dent. The different airbag systems work
independently of each other. Occupant safety
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However, the trig
gering of each ind ividual
system depends on the following factors as
determined in the initial stages of the col-
lision:
R the type of accident
- head-on collision
- sid eimpact
- rea rimpact
- Cabriolet: overturn
R thes everity of the accident, in particular
- the vehicle's rat eofdeceleration
- the vehicle's rat eofacceleration
Th ev ehicle deceleration or acceleration and
the direction of force ar ebasicall ydeter-
min edby:
R the distri bution of force sduring the colli-
sion
R the collision angle
R the deform ation characteristics of the vehi-
cle
R the characteristics of the object with which
the vehicle collides
Factors which can only be see nand measured
after acollision has occ urreddon ot play a
decisive role in the deployment of an airbag
nor do they provid eanindicatio nofairbag
deployment.
The vehicle may be deformed significantly,
e.g. the bonnet or the wing, withou tanairbag
being deployed. This is the case if only parts
which are relatively easily deformed are affec-
ted and the deploymen tthreshol disnot
reached. Conversely ,airbags may be
deployed even though the vehicle suffer sonly
minor deformation. Thi sisthe case if, for
example, ver yrigid vehicle parts such as lon-
gitudinal body member sare hi tand sufficient
deceleratio noccurs as aresult. Airbags
Important safety notes Airbag deployment slows down and restricts
the movemen
tofthe vehicle occupant.
If the airbags ar edeployed, you will hear a
bang and asmall amount of powder may also
be released. Only in rare cases will th ebang
affect your hearing. The powde rthat is
released generally does not constitute a
healt hhazard. The 6SRS warning lamp
lights up.
The SRS/AIRBAG symbol indicates the instal-
lation location of the airbags. G
Risk of injury
Airbags provide additional protection; they
are not, however, asubstitute 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 posi tioned
as close to th evertical as possible. The
head restraint must support th eback of the
head at about eye level.
R Always secur echildren less than 1.50 mtall
and under 12 years of age in suitable child
restraint systems.
R All vehicle occupant smust select aseat
position that is as far away from the airbag
as possible. The driver' sseat position must
allow the vehicle to be driven safely .The
driver's chest should be as fa raway from
the centre of the driver' sfront airba gcover
as possible.
R Move the fr ont-passengers eat as far back
as possible. This is especially impor tantif
you have secured achild in achild rest raint
system on the front-passenger seat. 34
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an accident. This could result in sever
eor
even fatal injuries to you and other occupants.
In this case, visi taqualifieds pecialist work-
shop immediately and have the roll bar
checked. PRE-SAFE
®
system
PRE-SAFE ®
take spre-e mptive measures to
protect you in certain hazardous situations.
PRE-SAFE ®
intervenes:
R in emergency braking situations, e.g. if the
BA SB rake Assist System is activate dorthe
BA SP LUS Brak eAssist System intervenes
powerfully
R if the radar sensor system detects an immi-
nen tdanger of collision in certain situa-
tion s(on vehicles with DI STRONIC PLUS)
R in critical situatio nsinvolvin gdriving
dynamics, e.g .ifthe vehicle oversteers or
understeers significantly due to physical
limits being exceeded or if the vehicle
swerves to avoid an obstacle at aspeed of
over 14 0km/h.
PRE-SAFE ®
takes th efollowin gmeasures
dependin gonthe hazardou ssituation detec-
ted:
R the fron tseat belts are pre- tensio ned.
R vehicles with memory fun ctions: under
acciden tconditions, it adjusts the front-
passenger seat if it is in an unfavourable
position.
R vehicles with amulticontour seat: the air
pressure in the seat side cushions and in
the backrest side bolsters is increased.
R if the vehicle skids ,the fron tside windows
and, on the Coupé, the panorama sliding
sunroof, are closed so that only asmall gap
remains.
If th ehazardous situation passe swithout
resulting in an accident ,PRE-SAFE ®
slackens
the belt pretensioning. The air pressure in the
side bols terson the multicontour seat is redu
ceda gain. All settings made by PRE-
SAFE ®
can the nbereversed.
If the seat belts are not released:
X Move the backrest or the seat back slightly
until the belt pretensionin gisreduced.
The locking mechanism releases. G
Warning
Make sure that nobody can becom etrapped
as yo uadjust the seat.
! Make sure that there are no objects in the
footwell or behind the seats when moving
the seat back. There is arisk that the seats
and/or the objects could be damaged.
More information abou tbelt adjust ment,a
convenience function integrate dinto PRE-
SAFE ®
,c an be found in the "Belt adjustment"
section (Y page 42). NECK-PRO head restraints
The NECK -PRO head restraints increase pro-
tection to the driver's and front-passenger's
head and neck .Tot his end, the head
restraint sonthe driver's and front-passenger
seats ar emoved forwards and upwards in the
even tofa rear-end collision of acertain
severity. This provides better head support. G
Risk of inju
ry
Head restraint cove rsprevent the NECK-PRO
head restraint sfrom triggering correctly .Con-
sequently, the NECK-PRO head restraints
cannot provide the intended level of protec-
tion .Don ot use head restraint covers.
If the NECK-PRO head restraints have been
triggered in an accident, you must reset the
NECK-PRO head restraints on the driver’s and
front-passenger seat (Y page 40). Other-
wise, the additional protection will not be
available in the even tofanother rear-end col-
lis ion. You can recognise whe nNECK-PRO
head restraints have bee ntriggere dbythe
fact that they hav emoved forwards and can
no longer be adjusted. Occupant safety
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R
the respective door is opened.
R the key is turne dtoposition0in the ignition
lock.
R the backr estis release dand folde dfor-
wards.
R nobod yissitting on the front-p assenger
side after approximat elyf ives econds.
If yo upress th eseat-bel textender button
afte rthis, seat-belt extender :will not
extend. Example: Coupé
X
Adjust the seat and mov ethe backrest to
an almost vertical position (Y page 92).
X Pull the seat belt smoothly out of seat-belt
extender :.
X Withou ttwisting it, place the shoulde rsec-
tion of the seat belt over the centre of the
shoulder and the lap section across the
hips.
X Engage belt tongue ;in buckle =.
Seat belt adjustmen t:if necessary, the driv-
er' sa nd front-passenger sea tbelts auto-
maticall yadjust to the upper body
(Y page 42).
X If necessary, pull upwards on the shoulder
section of the seat belt to tighten the belt
across your body.
The rear seat belts are equipped with achild
seat lock (Y page 45). If you pull out the seat belt fully and then allow the iner
tiar eel to
ret ract it, the child-seat lock is activated. To
deactivate the child-seat lock ,unfasten the
sea tbelt and guide the belt tongue to the belt
sash guide.
For mor einformation about releasing the seat
bel tw ith release button ?,see "Releasing
seat belts" (Y page 42).
Seat belt ad justment The belt adjustment function adjusts the driv-
er' sa nd front-passenger sea tbelt to the
upper body of the occupants. The belt strap
is tightened slightly when:
R you engage the belt tongue in the belt
buckle and you then tur nthe key to position
2 in the ignition lock.
R the key is in position 2in the ignition lock
and you then engage the belt tongue in the
buckle onc ethe seat-belt extender has
ret racted.
Th es eat-belt adjust ment will appl yacertain
tightening for ceif any slack is detected
between the occupan tand the sea tbelt. Do
not hold on to the seat belt tightly while it is
adjusting. You can switc hthe belt adjustment
on and off in the on-boar dcompu ter
( Y page 20 9).
Releasin gseat belts X
Press release button ?(Ypage 41) and
guide belt tongue ;(Ypage 41) back
towards seat belt extender :(Ypage 41).
Belt warning for driver and front
passenger The
7 seat belt warnin glamp in the instru-
ment cluster is areminder for all occupants
to fasten their seat belts. It may light up con-
tinuously or flash. In addition ,ther em ay be a
warning tone.
The 7 seat belt warning lamp goes out and
the warning ton eceases when the driver and
the fron tpassenger have fastened their seat 42
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belt. If the vehicle is stationar
yand adoor is
opened, the 7seat belt warnin glamp
goes out and the warning ton eceases.
For cer tain countries only: regardless of
whether the driver or the fron tpassenger
have fastened their seat belts, the 7seat
belt warning lamp lights up for 6seconds
after the engin eisstarted. It then goe sout
onc ethe driver and the fron tpassenger have
fastened their seat belts.
i For mor einformation on the 7seat
bel twarning lamp, see "Indicator and warn-
in gl am ps in the instrument cluster ,seat
belt" (Y page 236).
Rear seat belt status indicator The rear-compartment sea
tbelt status indi-
cator tells you if the rear passengers have
their seat belts fastened.
The rear-compartment seat belt status indi-
cator indicates the rear seat on which the belt
is fastened.
The rear-compartment seat belt status indi-
cator appear sint he multifunction displa yfor
around 30 seconds if:
R you drive off and reach aspeed of approx-
imately 10 km/h.
R the rear passengers fasten or unfasten
their seat belts while the vehicle is in
motion.
R someon egets in or out of the vehicle and
the vehicle drives off again. Example: the passenger in the right rea
rseat has
their seat belt fastened
You can also cancel the rear seat belt status
indicator immediately (Y page 210). i
The status indicator for the rear- compart-
ment seat belts is only available for certain
countries.
Bel ttensioners, belt force limiters The seat belts are fitted with belt tensioners.
!
If the front-passenger seat is not occu-
pied, do not engage the seat belt tongue in
the buckle on the front-passenger seat.
Otherwise, the belt tensioner could be trig-
gered in the event of an accident.
The belt tensioners tighten the seat belts in
an accident, pulling them close against the
body.
Belt tensioners do not correct incorrect seat
positions or incorrectly fastened seat belts.
Belt tensioners do not pull vehicle occupants
back towards the backrest.
If the seat belt is also fitted with abelt for ce
limiter and this is triggered, the forc eexerted
by the sea tbelt on the vehicle occupan tis
red uced.
Th ef ront be ltforce limiter sare synchronised
wit hthe front airbags, whic htake on apart of
the deceleration force. Thus, the force exer-
ted on the occupant is distributed over a
greater area.
The belt tensioners can only be activated
when:
R the ignition is switched on
R the restraint systems are operational; see
"SRS warning lamp" (Y page 33)
R the belt tongue is engaged in the buckle on
each of the three-point seat belts in the
front
The belt tensioners on the seats in the rear
compartment are triggered independently of
the lock status of the seat belts.
The belt tensioners are triggered depending
on the type and severity of an accident:
R in the event of ahead-on or rear-end colli-
sion if the vehicle decelerates or acceler- Occupant safety
43Safety
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