MERCEDES-BENZ E-CLASS COUPE 2017 Owner's Guide

Re
stra int sy stem functionality When
the ignition is switched on, a sy stem self-
te st is per form ed, during which the6
re stra int sy stem warning lamp lights up. It goes
out no later than a few seconds af terth eve hicle
is star ted. The components of there stra int sys‐
te m are then functional. Re
stra int sy stem malfunction R
The 6 restra int sy stem warning lamp
does not light up when the ignition is
switched on.
R The 6 restra int sy stem warning lamp
lights up continuously or repeatedly during a
journe y. &
WARNING Risk of inju ryor fata l injury
due toa malfunction in there stra int sys‐
tem
If th ere stra int sy stem is malfunctioning,
re stra int sy stem components may be trig‐
ge red unintentionally or might not be trig‐
ge red at all in theev ent of an accident. This may af
fect the seat belt tensioner or airbag,
fo rex ample. #
Have there stra int sy stem checked and
re paired immediately at a qualified spe‐
cialist workshop. Fu
nction of there stra int sy stem in an acci‐
dent How
there stra int sy stem works is de term ined by
th e se verity of the impact de tected and the type
of accident anticipated:
R Frontal impact
R Rear impact
R Side impact
R Rollover
The activation thre sholds forth e components of
th ere stra int sy stem are de term ined based on
th eev aluation of the sensor values measured at
va rious points in theve hicle. This process is pre-
em ptive in nature. The triggering/deployment of
th e components of there stra int sy stem should ta
ke place in good time at thest art of the colli‐
sion.
Fa ctors whi chcan only be seen and measu red
af te r a collision has occur red cann otplay a deci‐
sive role in airbag deployment, nor do they pro‐
vide an indication of airbag deployment.
The vehicle may be deformed significantly with‐
out an airbag being deplo yed. This is the case if
only parts which are relatively easily deformed
are af fected and thera te ofvehicle deceleration
is not high. Con versely, an airbag may be
deplo yedev en though theve hicle suf fers only
minor deformation. If very rigid vehicle parts
such as longitudinal members are hit, forex am‐
ple, theve hicle deceleration may be high enough
fo rth is to happen. 28
Occupant saf ety

The co
mponents of there stra int sy stem can
be activated or deplo yed independently of
each other: Component De
tected deploy‐
ment situation
Seat belt tensioner sFrontal impact, rear
impact, side impact,
ro llo ver
Driver's airbag, front
passenger airbag Fr
ontal impact Knee airbag
Frontal impact Side impact airbag Side impact
Wi ndow airba gS ide impact,rollo ver,
frontal impact The front passenger airbag can only be depl
oyed
in an accident if thePA SSENGER AIR BAG OFF
indicator lamp is off. If the front passenger seat
is occupied, make sure, bo thbefore and during
th e journe y,that thest atus of the front
passenger airbag is cor rect (→ page 38). &
WARNING Rick of burns from hot airbag
components
The airbag parts are hot af ter an airbag has
been depl oyed. #
Do not touch the airbag parts. #
Have a deplo yed airbag replaced at a
qu alified specialist workshop as soon
as possible. Mercedes-Benz
recommends that you ha vethe
ve hicle towe dto aqu alified specialist workshop
af te r an accident. Take this into account, partic‐
ularly if a seat belt tensioner is trig gered or an
airbag deplo yed.
If th e seat belt tensioners are trig gered or an air‐
bag is deplo yed, you will hear a bang, and a
small amount of powder may also be released:
R The bang will not generally af fect your hear‐
ing.
R Ingeneral, the powder released is not haz‐
ardous tohealth but may cause short-term
breathing dif ficulties topersons suf fering
from as thma or other pulmonary conditions. Pr
ov ided it is safe todo so, lea vetheve hicle
immediately or open the window in order to
pr eve nt brea thing dif ficulties. Seat belts
Pr
otection pr ovided bythe seat belt Alw
aysfast enyour seat belt co rrectly before
st arting a journe y.A seat belt can only pr ovide
th e best le vel of pr otection if it is worncor rectly. &
WARNING Risk of inju ryor death due to
incor rectly fastened seat belt
If th e seat belt is not worncor rectly, it can‐
not per form its intended pr otective function.
In addition, an incor rectly fastened seat belt
can also cause injuries, forex ample, in the
ev ent of an accident or when braking or
ch anging direction sudden ly. #
Alwa ys ensure that all vehicle occu‐
pants ha vetheir seat belts fastened
cor rectly and are sitting prope rly. R
The seat belt mus t: Occupant saf
ety29

-
Not be twis ted and must fit tightly and
snu gly across your body.
- Berouted across the cent reofyour
shoulder and as low down across your
hips as possible.
R The shoulder section of the seat belt should
not touch your ne cknor be routed under
yo ur arm or behind your bac k.
R Avoid wearing bulky clo thing, e.g. a winter
coat.
R Push the lap belt down as far as possible
across your hips and pull tight with the shoul‐
der section of the belt. Ne verro ute the lap
belt across your abdomen.
R Neverro ute the seat belt across sharp, poin‐
te d, abrasive or fragile objects.
R Only one person should use each seat belt at
any one time. Ne ver allow babies and chil‐
dren totrave l sitting on the lap of ano ther
ve hicle occupant.
R Never secure objects with a seat belt if the
seat belt is also being used byone of the
ve hicle's occupants. Alw ays obser vethe
instructions for loading theve hicle when securing objects, luggage or loads
(→
page 99).
If ch ildren are tra velling in theve hicle, be sure to
obser vethe instructions and saf ety no tes on
"Children in theve hicle" (→ page 42). Re
duced pr otection &
WARNING Risk of inju ryor death due to
incor rect seat position
The seat belt does not of ferth e intended
le ve l of pr otection if you ha venot mo vedthe
seat backrest toan almost vertical position.
When braking or in theeve nt of an accident,
yo u could slide underneath the seat belt and
sus tain abdominal or neck injuries, forex am‐
ple. #
Adjust the seat proper lybefore begin‐
ning your journe y. #
Alw ays ensure that the seat backrest is
in an almost vertical position and that
th e shoulder section of your seat belt is ro
uted across the cent reofyour shoul‐
der. &
WARNING Risk of inju ryor death due to
an extended seat belt extender while the
ve hicle is in motion
If th e seat belt extender is extended while
th eve hicle is in motion, the seat belt will not
fi t cor rectly against the body.
The seat belt may not then pr ovide the
proper pr otection. #
Alw ays ensure that the seat belt
ex tender is retracted while theve hicle
is in motion. If
th e seat belt extender does not retract au to‐
matically, it can be retracted manually. Todo so,
press the seat belt extender ba ckasfar as it will
go before starting theve hicle. Pressing the seat
belt extender ba ckinto place requ ires forc e. 30
Occupant saf ety

&
WARNING Risk of inju ryor death when
additional restra int sy stems are not used
fo r persons with a smaller build
Pe rsons under 1.50 m tall cannot wearthe
seat belt cor rectly wi thout a suitable addi‐
tional restra int sy stem.
If th e seat belt is not worncor rectly, it can‐
not per form its intended pr otective function.
In addition, an incor rectly fastened seat belt
can also cause injuries, forex ample, in the
ev ent of an accident or when braking or
ch anging direction sudden ly.#
Alw ays secure persons under 1.50 m
ta ll in a suitable restra int sy stem. &
WARNING Danger of inju ryor death
from bloc ked seat belt buckles
If seat belt buckles are bloc ked and cann ot
be mo ved down wards, the function of the
seat belt tensioners is impaire d.
The seat belt tensioners can no longer func‐
tion as intended and the seat belts can no
longer pr ovide the intended pr otection. #
Alw ays ensure that the seat belt buck‐
les are not bloc ked. &
WARNING Risk of inju ryor death due to
damaged or modified seat belts
Seat belts cann otprov ide pr otection in the
fo llowing situations:
R Ifth e seat belts are damaged, modified,
ex treme lydirty, bleached or dyed
R Ifth e seat belt buckle is damaged or
ex treme lydirty
R Ifth e seat belt tensioners, seat belt
anchorages or seat belt retractors ha ve
been modified
Seat belts may be damaged in an accident,
although the damage may not be visible, e.g.
due tosplinters of glass.
Modified or damaged seat belts may tear or
fa il, e.g. in an accident.
Modified seat belt tensioners could acciden‐
ta lly trigger or failto function as intended. #
Never modify the seat belts, seat belt
te nsioners, seat belt anchorages or seat
belt retractors. #
Makesure that the seat belts are
undamaged, not wornand clean. #
Alw ays ha vethe seat belts checked
immediately af ter an accident at a
qu alified specialist workshop. Mercedes-Benz
recommends that you on lyuse
seat belts which ha vebeen appr oved specifically
fo ryo ur vehicle byMercedes-Benz. &
WARNING Risk of inju ryor death from
deplo yedpy rotech nic seat belt tension‐
ers
Py rotech nic seat belt tensioners that ha ve
been deplo yed are no longer operational and
are unable toper form their intended pr otec‐
tive function. #
Therefore, ha vedeplo yedpy rotech nic
seat belt tensioners immedia tely
re placed at a qualified specialist work‐
shop. Occupant saf
ety31

Mercedes-Benz
recommends that you ha vethe
ve hicle towe dto aqu alified specialist workshop
af te r an accident.
* NO
TEDama gecaused bytrapping the
seat belt If an unused seat belt is not fully
retracted, it
may become trapped in the door or in the
seat mechanism. #
Alw ays ensure that an unused seat belt
is fully retracted. Seat belt
extender The seat belt
extender forth e front seat helps
yo ufa sten your seat belt. When the door is
closed, the seat belt extender extends.
Yo u can also extend the seat belt extender using
th e seat belt extender button. #
Switch the ignition on. #
Press seat belt extender button 1.
The seat belt extender extends.
The seat belt extender is retracted again if:
R The seat belt tongue is engaged in the seat
belt buckle.
R The seat belt tongue is not engaged in the
seat belt buckle within 60 seconds. In
this case, press seat belt extender button
1 again. The seat belt extender extends
again.
R The respective door is opened.
R Youfo ld the seat backrest forw ards.
R The front passenger side remains unoccu‐
pied.
If yo u press seat belt extender button 1
af te rth is, the seat-belt extender will not
ex tend.
The seat belt extender mu stalw ays be retracted
while theve hicle is in motion. Fa
stening seat belts If
th e seat belt is pulled quickly or sharpl y,the
seat belt retractor lo cks. The seat belt stra p can‐
not be pulled out any fur ther. 32
Occupant saf ety

#
Alw ays engage seat belt tongue 2ofthe
seat belt into seat belt buckle 1ofthe cor‐
re sponding seat.
Ve hicles with PRE-SAFE ®
:If th e front seat belt
is not pulled tight across your body, the seat belt
adjustment may automatically apply a cer tain
tigh tening forc e. Do not hold the seat belt tightly
while it is adjusting. You can activate and deacti‐ va
te the seat belt adjustment function using the
multimedia sy stem.
* NO
TEDeployment of the seat belt ten‐
sioner when the front passenger seat is
unoccupied If
th e seat belt tongue is engaged in the seat
belt buckle of the front passenger seat and
th e front passenger seat is unoccupied, the
seat belt tensioner may depl oyintheeve nt
of an accident. #
Only one pe rson should use each seat
belt at any one time. Re
leasing the seat belts #
Press there lease button in the seat belt
buckle and guide the seat belt back with the
seat belt tongue. Ac
tivating or deactivating seat belt adjust‐
ment via the multimedia sy stem Multimedia sy
stem:
, Vehicle .
î Vehicle settings .
Belt
adjustment #
Activate Oor deacti vate ª the function. Seat belt
warning for the driver and front
passen ger The
ü seat belt warning lamp in the Instru‐
ment Display is a reminder that all vehicle occu‐
pants must weartheir seat belts cor rectly.
In addition, an acoustic warning tone may sound.
As soon as the driver and front passenger fasten
th eir seat belts, the seat belt warning goes out. Re
ar seat belt status display The
rear seat belt status display is on lyavailable
fo r cer tain countries. Occupant saf
ety33

The
rear seat belt status display informs you
which rear seat belt is not fastened.
Yo u can immediately dismiss there ar seat belt
st atus display using the back button on the left-
hand side of thesteering wheel (→ page 236). Airbags
Overview of airbags
1
Knee airbag
2 Driver's airbag
3 Front passenger airbag
4 Window airbag
5 Side impact airbag
The ins tallation location of an airbag is identified
by the AIRB AGsymbol. When activated, an airbag can pr
ovide addi‐
tional pr otection for the respective vehicle
occupant. AIRB
AG Potential pr otection for
…
Knee airbag Thigh, knee and lo wer leg
Driver's airbag,
front passenger
airbag Head and
ribcage
Wi ndow airba gHead
Side impact air‐
bag Ribcage, also pelvis
for
front seat occupants The front passenger airbag can only be depl
oyed
in an accident if thePA SSENGER AIR BAG OFF
indicator lamp is off. If the front passenger seat
is occupied, make sure, bo thbefore and during
th e journe y,that thest atus of the front
passenger airbag is cor rect (→ page 38). 34
Occupant saf ety

*
NO
TEImpo rtant points toremember if
th e front passenger seat is unoccupied In an accident,
the components of the
re stra int sy stem may deploy unnecessarily
on the front passenger side if:
R There are heavy objects on the front
passenger seat.
R The seat belt tongue is engaged in the
seat belt buckle of the front passenger
seat and the front passenger seat is
unoccupied. #
Stow objects in a suitable place. #
Only one person should use each seat
belt at any one time. Pr
otection bythe airbags Depending on
the accident situation, an airbag
may supplement the pr otection of fere dby a cor‐
re ctly fastened seat belt. &
WARNING Risk of inju ryor death due to
incor rect seat position
If yo u deviate from the cor rect seat position,
th e airbag cann otper form its intended pro‐
te ctive function and deployment may even
cause fur ther injuries.
To avo id hazardous situations, alw ays make
sure that all vehicle occupants:
R Have their seat belt fastened cor rectly,
including pregnant women.
R Are seated properly and keep as faraw ay
as possible from the airbags.
R Obser vethefo llowing information. #
Alw ays make sure that there are no
objects between the airbag and vehicle
occupant. To
avo idrisks resulting from the deployment of
th e airbag:
R Before starting your journe y,adjust your seat
co rrectly ;th e driver's seat and front
passenger seat should be mo ved as far back
as possible. When doing so, alw
ays obser vethe informa‐
tion on the cor rect driver's seat position
(→ page 85).
R Only hold thesteering wheel bythesteering
wheel rim. This allows the airbag tobe fully
deplo yed.
R Alw ays lean against the seat backrest when
th eve hicle is in motion. Do not lean forw ards
or against the door or side windo w.You may
ot herwise be in the deployment area of the
airbags.
R Alw ayske ep your feet on thefloor. Do not
put your feet on the cockpit, forex ample.
Yo ur feet may otherwise be in the deploy‐
ment area of the airbag.
R Ifch ildren are tr avelling in theve hicle,
obser vethe additional no tes (→ page 42).
R Alw aysstow and secure objects cor rectl y. Occupant saf
ety35

Objects in
theve hicle interior may pr event an
airbag from functioning cor rectly. The refore
alw ays ensure that:
R There are no people, animals or objects
between theve hicle occupants and an air‐
bag.
R There are no objects between the seat, door
and door pillar (B-pillar).
R There are no hard objects, e.g. coat hangers,
hanging on the grab handles or coat hooks.
R There are no accessories, such as cup hold‐
ers, attached totheve hicle within the
deployment area of an airbag, e.g. on doors,
side windo wsor side panelling.
R There are no heavy, sharp-edged or fragile
objects in the poc kets of your clo thing. Store
such objects in a suitable place. Re
duced airbag pr otection &
WARNING Risk of inju ryfrom modi fica‐
tions tothe airbag co ver
If yo u modify an airbag co ver or af fix objects
su ch assticke rs to it,the airbag can no lon‐
ge r function cor rectl y. #
Never modify an airbag co ver and do
not af fix objects toit. The ins
tallation location of an airbag is identified
by the AIRB AGsymbol . &
WARNING Risk of inju ryor death due to
th e use of unsuitable seat co vers
Uns uitable seat co vers can obstruct or pre‐
ve nt the deployment of the airbags integra‐
te d into the seats.
Consequentl y,the airbags cann otprotect
ve hicle occupants as they are designed to
do. In addition, the operation of the auto‐
matic front passenger airbag shutoff could
be restricted. #
You should on lyuse seat co vers that
ha ve been appr oved forth e cor respond‐
ing seats byMercedes-Benz. &
WARNING Risk of inju rydue tomalfunc‐
tions of the sensors in the door panelling
Sensors tocontrol the airbags are located in
th e doors. Modifications or worknot per‐
fo rm ed cor rectly tothe doors or door panel‐
ling, as well as damaged doors, can lead to
th e function of the sensors being impaired.
The airbags might therefore not function
proper lyany more.
Consequent ly,th e airbags cann otprotect
ve hicle occupants as they are designed to
do. #
Never modify the doors or parts of the
doors. #
Alw ays ha vewo rkon the doors or door
panelling car ried out at a qualified spe‐
cialist workshop. 36
Occupant saf ety

&
WARNING Risk of inju rydue todeplo yed
airbag
A deplo yed airbag no longer of fers any pro‐
te ction and cannot pr ovide the intended pro‐
te ctive function in theeve nt of an accident. #
Have theve hicle towe dto aqu alified
specialist workshop in order tohave the
deplo yed airbag replaced. Ha
ve deplo yed airbags replaced immediately. St
atus of the front passenger airbags Po
ints toremember when the front
passen ger seat is occupied
The au tomatic front passenger airbag shutoff is
able todetect whe ther the front passenger seat
is occupied bya person or a child restra int sys‐
te m. The front passenger airbag is enabled or
disabled accordingly.
When ins talling a child restra int sy stem on the
front passenger sea t:
R Ensu rethat thech ild restra int sy stem is posi‐
tioned cor rectly (→ page 49). R
Alw ays obser vethech ild restra int sy stem
manufacturer's ins tallation instructions.
R Never place objects under or behind the
ch ild restra int sy stem, e.g. cushions.
R Fully retract the seat cushion length adjust‐
ment.
R The entire base of thech ild restra int sy stem
must alw aysre st on the sitting sur face of the
front passenger seat.
R The backrest of thefo rw ard-facing child
re stra int sy stem must, as far as possible, be
re sting on the seat backrest of the front
passenger seat.
R The child restra int sy stem must not touch the
ro of or be put under stra in by the head
re stra ints. Adjust the seat backrest inclina‐
tion and the head restra int setting accord‐
ing ly. &
WARNING Risk of inju ryor death due to
objects between the sitting sur face and
th ech ild restra int sy stem
Objects between the sitting sur face and the
ch ild restra int sy stem could af fect the func‐
tion of the automatic front passenger airbag
shutoff.
This could result in the front passenger air‐
bag not functioning as intended during an
accident. #
Do not place any objects between the
sitting sur face and thech ild restra int
sy stem. #
The entire base of thech ild restra int
sy stem must alw aysre st on the sitting
sur face of the front passenger seat. #
The backrest of thefo rw ard-facing child
re stra int sy stem must, as far as possi‐
ble, be resting on the seat backrest of
th e front passenger seat. #
Alw ays comply with thech ild restra int
sy stem manufacturer's ins tallation
instructions. Occupant saf
ety37