MERCEDES-BENZ E-CLASS COUPE 2011 Service Manual

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 deviation sare possible. Please
not ethat your vehicle may not be equipped
with all feature sdescribed. This also
applies to safety-relevan tsystems and
functions.
i Pleas ereadt he information on qualified
specialist workshop s(Ypage 22). Occupant safety
Important safet
ynotes
Seat belts, together wit hthe Supplemental
Restrain tSyste m–S RS (Y page 39), are
complementary, co-ordinated restrain tsys-
tems .They reduce the risk of injury in spe-
cific, pre-defined types of accident situations
and thereby increase occupant safety. How-
ever, seat belts and airbags generally do not
protect against objectsp enetratingthe vehi-
cle 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 100).
R the seat belt has been fastened properly
(Y page 47).
R the airbags can inflate unrestricted if
deployed (Y page 40).
R the steering wheel is adjusted properly
(Y page 100).
R the restraint systems have not been modi-
fied.
i An airbag increases the protection of
vehicle occupants wearing aseat belt. As
such, they are only an additional restraint
system which complements, but does not
replace, the seat belt. All vehicle occupants must wear their seat belt correctly 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 pro-
tective capacity of correctly fastened seat
belts is not increased by deploying the air-
bags, the airbags will not deploy.A
irbag
deploymen tonly provides increased pro-
tection if the sea tbeltisw ornc orrectly
because:
R the sea tbelt helps to keep the vehicle
occupan tinthe best position in relation
to the airbag.
R in ah ead-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. The workshop
must have the necessary specialist knowl-
edge and tools to carry out the work required.
Mercedes-Ben zrecommends that you use a
Mercedes-Benz Service Centr efor this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at aq ualified specialist workshop. 38
Occupant safetySafety

G
WARNING
Modifications to or work performe dincor-
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, beltt en-
sioners, belt forc elimiters and airbags
R the wiring
R networked electronic systems
Airbags and belt tensioners could fail to
deploy or be triggered in an acciden tdespite
the deceleration forc ebeing sufficien ttotrig-
ger the systems, or could be triggered unin-
tentionally. For this reason, never make any
modifications to the restraint systems.
Therefore, you must not tamper with elec-
tronic components or their software. SRS (Supplemental Restraint System)
Introduction SRS consist
sof:
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 occupant scoming
into contact with the vehicle's interior in the
event of an accident .Itcan also reduce the
effect of the forces to which occupant sare
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 afew seconds
after the engine is started. G
WARNING
If SRS is malfunctioning, 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 when the ignition is switched on.
R the engine is runnin gand the 6SRS
warning lamp does not 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 Service Centre for this purpose.
In particular, work relevant to safety or on
safety-related systems must be carried out at
aq ualified specialist workshop.
Triggering of belt tensioners, belt force
limiters and airbags During the first stage of
acollision, the airbag
control unit evaluates important physical
data relating to vehicle deceleration or accel-
eration, such as:
R duration
R direction
R magnitude
Based on the evaluation of this data, the air-
bag control unit pre-emptively triggers the
belt tensioners 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 alongitudinal direc-
tion, the front airbags 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 ac ollision. In the first deployment stage, Occupant safety
39Safety Z

the front airba
gisfilledwith enoug hpropel-
lant ga storeducethe risk of injuries .The
front airbag is fully deployed if asecond
deployment threshold 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.
How the airbag system works is deter-
mined by the severity of the collision detec-
ted, especiallyt he vehicle deceleration or
acceleration, and the apparent type of acci-
dent:
R head-on collision
R side impact
R rear impact
R Cabriolet: overturn
The rate of vehicle deceleration or accelera-
tion and the direction of the force are essen-
tially determined by:
R the distribution of forces during the colli-
sion
R the collision angle
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 seen and measured
after acollision has occurred do not play a
decisive role in the deployment of an airbag,
nor do they provide an indication of airbag
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 sufficient deceleration
occurs as
aresult. 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 asmall 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, 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-
nan twome n–m ust wear their seat belt
correctly at all times and lean back against
th eb ackrest, whic hshoul dbep ositioned
as close to th evertical as possible. The
head restraint must support th eback of the
head at about eye level.
R Always secure childre nless than 1.50mt all
and unde r12years 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's seat position must
allow the vehicle to be driven safely. The
driver's chest should be as far away from 40
Occupant safetySafety

the centr
eofthe driver's airba gcove ras
possible.
R Mov ethe front-passenge rseat as far back
as possible. This is especially important if
you have secured achild in achild restraint
system on the front-passenger seat.
R Vehicle occupant s–inparticular ,children
–m ust no tlean their heads in the area of
the window where:
- Coupé: the sidebag/windowbag
deploys.
- Cabriolet: the sidebag/headbag
deploys.
R Rearward-facin gchild restraint systems
must not be fitted to the front-passenger
seat unless the front-passenger airbag has
been disabled. On the front-passenger
seat, the front-passenger airbag is disabled
if ac hild restraint system with automatic
child seat recognition is fitted to the front-
passenger seat. The 4PASSENGER
AIRBA GOFF indicator lamp must be con-
tinuously lit.
If the front-passenger seat of your vehicle
does not have automatic child seat recog-
nition ,oryour rearward-facing child
restraint system does not have automatic
child seat recognition, children must be
secured in achild restraint system on a
suitable seat in the rear. If you secure a
forward-facing child restraint system to the
front-passenger seat, you must move the
front-passenger seat as far back as possi-
ble.
R Make sure there are no heavy or sharp-
edged objects in pockets of clothing.
R Do not lean forwards, e.g. over the cover of
the driver's/front-passenger airbag, partic-
ularly when the vehicle is in motion.
R Do not put your feet on the dashboard.
R Only hold the steerin gwheel by the rim.
This allows the airbag to deploy fully. You
could be injured if the airbag is deployed
and you are holding the inside of the steer-
ing wheel. R
Do not lean on the doors/rear sidewalls
from the inside.
R Make sure that there are no people, ani-
mals or objects between the vehicle occu-
pants and the area of deployment of the
airbag.
R Do not place any objects between the seat
backrest and the door.
R Do not hang any hard objects, for example,
coat hangers, on the grab handles or coat
hooks.
R Do not attac haccessories such as drinks
can holders to the doors/rear sidewalls.
It is not possible to rule out arisk of injury
being caused by an airbag due to the high
speed at which the airbag must be deployed. G
WARNING
Airbag functionality can only be assured if the
following parts are not covered and no badges
or stickers are attached to them:
R padded steerin gwheel boss
R kneebag cover below the steerin gcolumn
R front-passenger airbag cover
R outer side of fron tseat bolsters
R side trim nexttot he rear seat backrest
R Cabriolet: door trim G
WARNING
As mall amount of powder is released when
an airbag is deployed. The powder could
cause short-term breathing difficulties in peo-
ple with asthma or other respiratory prob-
lems.
In order to prevent breathing difficulties, you
should leave the vehicl eassoon as it is safe
to do so. You can alsoo pen the windowto
allow fresh air to enter the interior. The pow-
der does not constitute ahealth hazard and
does not indicat ethat there is afire in the
vehicle. Occupant safety
41Safety Z

G
WARNING
The airbag parts are hot after the airbag has
been deployed. Do not touch them as you
coul dburn yourself.
Have the airbags replaced at aqualified spe-
cialist workshop. Otherwise, occupants are
not protected by the airbags in the event of
another accident.
Fron tairbags The fron
tairbags increase protection for the
driver's and front-passenger's head and
chest. Driver'
sairbag :deploys in front of the
steerin gwheel; front-passenger airbag ;
deploys in front of and above the glove com-
partment.
They are deployed:
R at the start of an accident with ahigh rate
of vehicle acceleration or deceleration in a
longitudinal direction
R if the system determines that airbag
deploymen tcan offer additional protection
to that provide dbytheseat belt
R if th eseat belt is fastened
R independently of other airbag sinthe vehi-
cle
If the vehicle overturns,t he front airbags are
generally not deployed. If the system detects
ah igh rate of vehicle deceleration in alongi-
tudinal direction, the front airbags are
deployed. Front-passenger airbag
;is only activated if
the system determines that the front-
passenger seat is occupied. The 4
PASSENGER AIRBAG OFF indicator lamp on
the centre console is not lit (Y page 53).
This means that achild restraint system with-
out automatic child seat recognition has been
fitted or that achild restraint system with
automatic child seat recognition is incorrectly
fitted.
! Do not place heavy objectsont he 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.
Driver's kneebag i
The driver's kneebag is only available in
certain countries.
The driver's kneebag increases protection of
the driver against:
R knee injuries
R thigh injuries
R lower leg injuries Driver's kneebag
:is always deployed along
with the driver's airbag and inflates under-
neath the steering column. 42
Occupant safetySafety

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-Benz vehicles.
The seat covers must have aspecial tear seam
for sidebags/pelvisbags. Otherwise, the side-
bag/pelvisbag cannot deploy correctly and
would fail to provide the intended protection
in the event of an accident. 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 Example: Coupé
Front sidebags
:and rear 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 ahigh rate
of lateral vehicle deceleration or accelera-
tion, e.g. in aside impact
R independently of seat belt use
R independently of the front airbags
R independently of the belt tensioners Cabriolet: if the vehicle overturns, the side-
bags are generally not deployed. They are
deployedift
he system detectsh igh vehicle
deceleration or acceleration in alateral direc-
tion and determines that sidebag deployment
can offer additional protection to that provi-
ded by the seat belt.
Front headbags (Cabriolet) Headbags are available in the Cabriolet.
The headbagse
nhance the level of protection
for the head (but not 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.T hey are deployed:
R at the start of an accident with ahigh rate
of lateral vehicle deceleration or accelera-
tion, e.g. in aside 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 windowbagd eployment
can offer additional protection to that pro-
vided by the seat belt
R independently of seat belt use
R regardless of whether the front-passenger
seat is occupied
R independently of the front airbags
Pelvisbags i
Pelvisbags are only available in certain
countries. Occupant safety
43Safety Z

G
WARNING
If you wishtou se seat covers, Mercedes-Benz
recommends that, for safety reasons, you
only use seat covers that have been approved
for Mercedes-Benz vehicles.
The seat covers must have aspecial tear seam
for sidebags/pelvisbags. Otherwise, the side-
bag/pelvisbag cannot deploy correctly and
would fail to provid ethe intended protection
in the event of an accident. Appropriate seat
covers can be obtained, for example, from a
Mercedes-Benz Service Centre.
Pelvisbagd eployment enhances the leve lof
protection of the vehicl eoccupants on the
side of the vehicl eonwhich the impact
occurs. Pelvisbags
:deploy next to and below the
outer seat cushions. They are deployed:
R on the side on which an impact occurs
R at the start of an accident with ahigh rate
of latera lvehicl edeceleratio noraccelera-
tion, e.g. in asidei mpact
R independentl yofseatb elt use
R independently of the fron tairbags
R independently of the belt tensioners
Cabriolet :the pelvisbagsa re generally not
deployed if the vehicle overturns,u nless the
system detects high vehicle deceleration or
acceleration in alateral direction and deter-
mines that they can offer additional protec-
tion to that provided by the seat belt. Windowbags Windowbags are available in the Coupé
The windowbags enhance the level of protec-
tion for the head, but not chest or arms, of the
vehicle occupants on the side of the vehicle
on which the impact occurs.
The windowbags are integrated into the side
of the roof frame and deploy in the area
extending from the front door (A-pillar) to the
rear sidewall (C-pillar).
Windowbags
:are deployed:
R on the side on which an impact occurs
R at the start of an accident with ahigh rate
of lateral vehicle deceleration or accelera-
tion, e.g. in aside impact
R regardless of whether the front-passenger
seat is occupied
R independently of seat belt use
R independently of the front airbags Roll bar (Cabriolet)
The roll bars are under the rear head
restraints. They are extended if systems
detect that the vehicle is in danger of over-
turning. G
WARNING
Ensure that the area around the roll bars/rear
head restraintsisk ept clear. Otherwise,
someone could be injured by the roll bars
when they are triggered. 44
Occupant safetySafety

When the roll bars are extended, the rear
head restraints also extend automatically.
Oncet he roll bars are extended, you can no
longer lower the rear head restraints. The soft
top can no longer be operated. In this case,
visit the nearest qualified specialist work-
shop. G
WARNING
If the roll bar is malfunctioning, the A
Malfunction Consult workshop message
appears in the multifunction display. The roll
bars will then not be extended in the event of
an accident .This could result in severe or
even fatal injuries to you and other occupants.
In this case, visit aqualified specialist work-
shop immediately and have the roll bar
checked. PRE-SAFE
®
(preventative occupant
protection)
PRE-SAFE ®
takes pre-emptive measures to
protect occupants in certain hazardous sit-
uations.
PRE-SAFE ®
intervenes:
R in emergency braking situations, e.g. if BAS
is activated or for vehicles with DISTRONIC
PLUS, BAS PLUS intervenes powerfully
R if the radar sensor system detects an immi-
nent danger of collision in certain situa-
tions (on vehicles with DISTRONIC PLUS)
R in critical driving situations, e.g. when phys-
ical limits are exceed and the vehicle under-
steers or oversteers severely
PRE-SAFE ®
takes the following measures
depending on the hazardous situation detec-
ted:
R the front seat belts are pre-tensioned.
R vehicles with the memory function: 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 front side windows
and, on the Coupé,t he panorama sliding
sunroof, are closed so that only asmall gap
remains.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pretensioning. The air pressure in the
side bolsters on the multicontour seat is
reduced again. All settings 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 pretensionin gisreduced and the
locking mechanism is released. G
WARNING
When adjusting the seat, make sure that
nobody can become trapped.
! Make sure that there are no objectsint he
footwell or behind the seats when moving
the seat back. There is arisk that the seats
and/or the objectsc ould be damaged.
More information about seat-belt adjust-
ment, aconvenience function integrated into
PRE-SAFE ®
,c an be found in the "Seat-belt
adjustment" section (Y page 49). 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 NECK-PRO
head restraints on the driver's and front-
passenger seats are moved forwards and
upwards in the event of arear-end collision of
ac ertain severity. This provides better head
support. Occupant safety
45Safety Z

G
WARNING
Only use headr estraint covers which have
been tested and approved by Mercedes-Benz
for yourv ehicle model.
The use of non-approved head restraint cov-
ers may preven tNECK-PRO head restraints
from triggering properly. Consequently, the
NECK-PRO head restraints cannot provide the
intended level of protection.
Consult aMercedes-Benz Service Centre
regarding availability.
If the NECK-PRO head restraint shave been
triggered in an accident, reset the NECK-PRO
head restraint sonthe driver’s and front-
passenger seat (Y page 46). Otherwise, the
additional protection will not be available in
the event of another rear-en dcollision. You
can recognise when NECK-PRO head
restraint shave been triggered by the fact that
they have moved forwards and can no longer
be adjusted. Resetting triggered NECK-PRO head
restraints
Following arear-en dcollision, Mercedes-
Benz recommends that you have NECK-PRO
head restraint schecked at aqualified spe-
cialist workshop, e.g. aMercedes-Benz
Service Centre.
i Resetting the NECK-PRO head restraints
requires alot of strength. If you have diffi-
culty resetting the NECK-PRO head
restraints, have this work carried out at a
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre. Example: Coupé
X
Tilt the top of the NECK-PRO head restraint
cushion forwards in the direction of
arrow :.
X Push the NECK-PRO head restraint cushion
down in the direction of arrow ;as far as
it will go.
X Firmly push the NECK-PRO head restraint
cushion back in the direction of arrow =
until the cushion engages.
X Repeat this procedure for the second
NECK-PRO head restraint. Seat belts
Important safety notes Seat belts are the most effective means of
restraining the movemen
tofvehicle occu-
pants in the event of an accident. This
reduces the risk of vehicle occupant scoming
into contact with parts of the vehicle interior. G
WARNING
As eat belt which is not worn correctly, or
which has not been engaged in the seat belt
buckle correctly, cannot perform its intended
protective function .Under certain circum-
stances, this could cause severe or even fatal
injuries in the event of an accident.
Make sure that all occupant s–inparticular,
pregnan twome n–w ear their seat belt cor-
rectly at all times.
R The seat belt must fit snugly on your body
and must no tbetwisted. Therefore, avoid 46
Occupant safetySafety

wearin
gbulky clothing, e.g .awinter coat.
The shoulde rbelt section must be routed
across the centre of your shoulder –onno
account across your neck or under your
arm –and pulled tight against your upper
body .The lap belt must always pass across
your lap as low down as possible, i.e. over
your hip joints–n ot across your abdomen.
If necessary, push down the belt strap
slightly and then retighten it in the roll-up
direction.
R Do not route the belt strap across sharp
edges or fragile objects, especially if these
are located on or in your clothing, e.g. spec-
tacles, pens, keys, etc. The seat belt strap
could be damaged and tear in an accident,
and you or other vehicle occupant scould
be injured.
R Only one person should use each seat belt
at any one time. Children must never travel
sittin gont he lap of other occupants. It
would not be possible to restrain the child
in the event of asudden change in direc-
tion, braking or an accident .This could
result in severe or even fatal injuries to the
child and other occupants.
R Persons less than 1.50 mtall cannot wear
the seat belts correctly. For this reason,
secure persons less than 1.50 mtall in spe-
cially designed ,suitable restraint systems.
R Children less than 1.50 mtall or unde r12
years of age canno twear the seat belts
properly. Therefore, they should alway sbe
secured in asuitable child restraint system
on asuitable vehicle seat. You can find
more information under "Children in the
vehicle" in the "Safety" section of the Own-
er's Manual. Follow the manufacturer's
installation instructions when fitting achild
restraint system.
R Do not secure any objects with aseat belt
if the seat belt is also being used by one of
the vehicle's occupants. G
WARNING
The seat belt does not offer the intended level
of protection unless the backrest is almost
vertical. Under certain circumstances, this
could cause severe or even fatal injuries in the
event of an accident.
Befor estarting ajourney, make sure that the
seat is properly adjusted and that the back-
rest is almost vertical. G
WARNING
Ad irtyord amaged seat belt or aseat belt that
has been subjected to aload in an accident
or which has been modified no longer offers
the intended level of protection. Under certain
circumstances, this could cause sever eor
even fatal injuries in the even tofanaccident.
For this reason, check regularly that the seat
belts are not damaged or dirty.
Alway shaved am aged sea tbelts or seat belts
that have been subjected to aload in an acci-
dent replaced at aqualified specialist work-
shop. Consult aqualified specialist workshop
which has the necessary specialist knowledge
and tools to carry out the work required.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centr efor this pur-
pose.
For safety reasons, Mercedes-Benz recom-
mends that you only use seat belts which have
been approved by Mercedes-Benz for your
vehicle.
Fastening seat belts The seat-belt extender for the driver and front
passenger helps you fasten your seat belt. Occupant safety
47Safety Z