ECU MERCEDES-BENZ E-CLASS SALOON 2017 Owners Manual

Diagnostics connection
The diagnostics connection is on ly intended for
th e connection of diagnostic devices at a quali‐
fi ed specialist workshop. &
WARNING Risk of accident due tocon‐
necting devices tothe diagnostics con‐
nection
If yo u connect equipment toa diagnostics
connection in theve hicle, it may af fect the
operation of vehicle sy stems.
As a result, the operating saf ety of theve hi‐
cle could be af fected. #
Only connect equipment toa diagnos‐
tics connection in theve hicle which is
appr ovedfo ryo ur vehicle byMercedes-
Benz. &
WARNING Risk of accident due to
objects in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tr avel or block a depressed pedal. This jeopardises
the operating and road
saf ety of theve hicle. #
Stow all objects in theve hicle securely
so that they cannot getinto the driver's
fo ot we ll. #
Alw aysfit th efloor mats securely and
as prescribed in order toensure that
th ere is alw ays suf ficient room forthe
pedals. #
Do not use loose floor mats and do not
place floor mats on top of one ano ther. *
NO
TEBattery discharging from using
devices connected tothe diagnostics
connection Using devices at
the diagnostics connection
drains the batter y. #
Check thech arge leve l of the batter y. #
Ifth ech arge leve l is lo w,charge the
batter y,e.g. bydriving a considerable
dis tance. Connecting equipment
tothe diagnostics con‐
nection can lead toemissions monitoring infor‐
mation being reset, forex ample. This may lead
to theve hicle failing tomeet therequ irements of
th e next emissions inspection during the main
inspection. Qualified specialist
workshop
A qu alified specialist workshop has the neces‐
sary special skills, tools and qualifications to
cor rectly car ryout any necessary workon your
ve hicle. This particularly applies towo rkreleva nt
to saf ety.
Alw ays ha vethefo llowing workcar ried out on
yo ur vehicle at a qualified specialist workshop:
R workreleva nt tosaf ety
R service and maintenance work
R repair work
R modifications as well as ins tallations and
con versions
R workon electronic components 26
General no tes

R
Vehicles with 48 V on-board electrical
sy stem (EQ-boost tech nology): workon
high voltage components of the 48 V on-
board electrical sy stem
Mercedes‑Benz recommends a Mercedes‑Benz
service centre. Ve
hicle registration
Mercedes-Benz may ask its service centres to
car ryout tech nical inspections on cer tain vehi‐
cles. The quality or saf ety of theve hicle is
impr oved as a result of the inspection.
Mercedes-Benz can only inform you about vehi‐
cle checks if Mercedes-Benz has your registra‐
tion data.
It is possible that your vehicle has not yet been
re gis tere d in your name in thefo llowing cases:
R Ifyo ur vehicle was not pur chased at an
authorised specialist dealer.
R Ifyo ur vehicle has not yet been examined at
a Mercedes-Benz service centre. It is advisable
toregis teryo ur vehicle with a
Mercedes-Benz service centre.
Inform Mercedes-Benz as soon as possible
about any change in address or vehicle owner‐
ship. You can do this at a Mercedes-Benz service
centre, forex ample. Cor
rect use of theve hicle
If yo ure mo veany warning sticke rs,yo u or others
could failto recognise cer tain dangers. Lea ve
wa rning sticke rs in position.
When using theve hicle, obser vethefo llowing
information:
R the saf ety no tes in this manual
R tech nical da taforth eve hicle
R traf fic ru les and regulations
R laws and saf etyst andards per taining to
mo torve hicles Implied
warranty
* NO
TEDama getotheve hicle arising
from violation of these operating instruc‐
tions. Damage
totheve hicle can arise from viola‐
tion of these operating instructions.
This damage is not co vered either bythe
Mercedes-Benz implied warranty or bythe
New‑ or Used- Vehicle Warrant y. #
Follow the instructions in these operat‐
ing instructions on proper operation of
yo ur vehicle as well as on possible vehi‐
cle damage. QR code
forre scue card
The QR code is secured in the fuel filler flap and
on the opposite side on the B-pillar. In theeve nt
of an accident, rescue services can use the QR
code toquickly find the appropriate rescue card
fo ryo ur vehicle. The cur rent rescue card con‐
ta ins the most impor tant information about your General no
tes27

This includes,
forex ample:
R multimedia data such as music, films or pho‐
to sfo r playback in an integrated multimedia
sy stem
R address book data for use in connection with
an integrated hands-free sy stem or an inte‐
grated navigation sy stem
R entered navigation destinations
R data about the use of Internet services
This data can be stored locally in theve hicle or
is located on a device which you ha veconnected
to theve hicle. If this data is stored in theve hi‐
cle, you can dele teit at any time. This data can
only be transmitted tothird parties upon your
requ est with particular rega rd tothe scope of
use of online services according to your selected
settings.
Yo u can store or change con venience settings/
individualisations in theve hicle at any time.
Depending on the equipment, this includes, for
ex ample:
R seat and steering wheel position settings
R suspension and climate control settings R
individualisations such as interior lighting
If yo ur vehicle is accordingly equipped, you can
connect your smartphone or ano ther mobile end
device totheve hicle. You can cont rolth em via
th e control elements integrated in your vehicle.
Images and audio from the smartphone can be
output via the multimedia sy stem. Cer tain infor‐
mation is simultaneously transmitted to your
smartphone.
Depending on there spective integration type,
th is includes, forex ample:
R general vehicle information
R position data
This enables the use of selected smartphone
Apps, e.g. navigation or music playbac k.There is
no fur ther interaction between the smartphone
and theve hicle; in particular, vehicle data is not
directly accessible. The type of fur ther data pro‐
cessing is de term ined bythe pr ovider of the App
used. The respective App and your smartphone's
operating sy stem de term ine whe ther changes
can be made tothe settings and which settings
can be changed. Service pr
oviders Wire
less network connection
If yo ur vehicle has a wireless network connec‐
tion, it enables data tobe exc hanged between
yo ur vehicle and additional sy stems. The wire‐
less network connection is enabled via theve hi‐
cle's transmission and reception unit or via con‐
nected mobile end devices (e.g. sma rtphones).
Online functions can be used via the wireless
network connection. This includes online serv‐
ices and applications/Apps pr ovided bythe
manufacturer or other pr oviders.
Manu factu rer's se rvices
The manufacturer describes there spective func‐
tions and cor responding legal data pr otection
information when suitable forth e manufacturer's
online services. Personal data may be used for
th e pr ovision of online services. Data is
exc hanged via a secure connection, e.g. tothe
manufacturer's designated IT sy stems. Personal
data is collected, processed and used via the
pr ov ision of services exclusively on the basis of
legal permissions or with prior consent. General no
tes29

Re
stra int sy stem Pr
otection bythere stra int sy stem The
restra int sy stem includes thefo llowing:
R Seat belt sy stem
R Airbags
R Child restra int sy stem
R Child seat securing sy stem
The restra int sy stem can reduce therisk of vehi‐
cle occupants coming into contact with parts of
th eve hicle interior in theeve nt of an accident. In
th eev ent of an accident, there stra int sy stem
can also reduce thefo rc es towhich theve hicle
occupants are subjected.
A seat belt can only pr ovide the best le vel of pro‐
te ction if it is worncor rectl y.Depending on the
de tected accident situation, seat belt tensioners
and/or airbags supplement the pr otection
of fere dby a cor rectly wornseat belt. Seat belt
te nsioners and/or airbags are not depl oyed in
ev ery accident. In order
forth ere stra int sy stem toprov ide the
intended le vel of pr otection, each vehicle occu‐
pant must obser vethefo llowing information:
R Fasten seat belts cor rectl y.
R Sit in an almost up right seat position with
th eir back against the seat backrest.
R Sit with their feet resting on thefloor, if pos‐
sible.
R Alw ays secure persons under 1.50 m tall in
an additional restra int sy stem suitable for
Mercedes-Benz vehicles.
Ho wever,no sy stem available today can com‐
ple tely eliminate injuries and fata lities in every
accident situation. In particular, the seat belt
and airbag generally do not pr otect against
objects penetrating theve hicle from the outside.
It is also not possible tocompl etely rule out the
ri sk of injury caused bythe airbag deploying. Re
duced restra int sy stem pr otection &
WARNING Risk of inju ryor death from
modifications tothere stra int sy stem
The restra int sy stem can no longer function
cor rectly af ter alterations ha vebeen made.
The restra int sy stem may then not pr otect
th eve hicle occupants as intended byfailing
in an accident or triggering unexpec tedly, for
ex ample #
Never alter the parts of there stra int
sy stem. #
Neverta mp er with the wiring or any
electronic component parts or their
software. If it is necessary
tomodify theve hicle toaccom‐
modate a person with disabilities, con tact a
qu alified specialist workshop.
Mercedes-Benz recommends that you on lyuse
driving aids which ha vebeen appr oved specifi‐
cally foryo ur vehicle byMercedes-Benz. Occupant saf
ety31

#
Alw ays ensure that all vehicle occu‐
pants ha vetheir seat belts fastened
cor rectly and are sitting prope rly. In order
forth e cor rectly wornseat belt topro‐
vide the intended le vel of pr otection, each vehi‐
cle occupant must obser vethefo llowing infor‐
mation:
R The seat belt must not be twis ted and must
fi t tightly and snu gly across the body.
R The seat belt must be routed across the
centre of the shoulder and as low down
across the 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 107).
Also ensure that no objects, e.g. a cushion,
are ever placed between a person and the
seat.
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 46). Re
duced seat belt 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. 34
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 Risk of inju ryor death due to
bloc ked seat belt buckle or seat belt
anchorage
Objects next tothe front seat that block the
seat belt buckle or the moving seat belt
anchorage on the front seat impair the func‐
tion of the seat belt tensioners. The seat belt
tensioners may not function as
intended and the seat belt may no longer
pr ov ide the intended pr otection. #
Before starting the journe y,make sure
th at there are no objects around the
seat belt buckle or between the front
seat and door. &
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. Occupant saf
ety35

*
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 idtherisks resulting from the deployment
of an airbag, each vehicle occupant must
obser vethefo llowing information:
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 94).
R Only hold thesteering wheel bythesteering
wheel rim. This allow sth e 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 tra velling in theve hicle,
obser vethe additional no tes (→ page 46).
R Alw aysstow and secure objects cor rectly. Occupant saf
ety39

The
status of the front passenger airbag is dis‐
pla yed af terth e sy stem self-tes t:
R PASSENGER AIR BAG ON lights up for
60 seconds, subsequently bo thindicator
lamps are off (PASSENGER AIR BAG ON and
OFF): the front passenger airbag is able to
deploy in theeve nt of an accident.
R PASSENGER AIR BAG OFF lights up continu‐
ously: the front passenger airbag is disabled.
It will then not be deplo yed in theeve nt of an
accident.
If th ePA SSENGER AIR BAG ON indicator lamp is
off, on lythePA SSENGER AIR BAG OFF indicator
lamp sho ws thest atus of the front passenger
airbag. The PASSENGER AIR BAG OFF indicator
lamp may be lit continuously or be off.
If th ePA SSENGER AIR BAG OFF indicator lamp
and the6 restra int sy stem warning lamp
light up simultaneousl y,the front passenger seat
may not be used. Also in this case, do not ins tall
a ch ild restra int sy stem on the front passenger
seat. Ha vethe automatic front passenger airbag
shutoff checked and repaired immediately at a
qu alified specialist workshop. St
atus display
If th e front passenger seat is occupied, ensure,
bo th before and during the journe y,that thest a‐
tus of the front passenger airbag is cor rect for
th e pr evailing situation.
Af terfitting a rear wa rd-facing child restra int
sy stem tothe front passenger seat:
PA SSENGER AIR BAG OFF must be lit continu‐
ousl y. &
WARNING Risk of inju ryor death from
using a rear wa rd-facing child restra int
sy stem when the front passenger airbag
is enabled
If yo u secure a child in a rear wa rd-facing
ch ild restra int sy stem on the front passenger
seat and thePA SSENGER AIR BAG OFF indi‐
cator lamp is off, the front passenger airbag
can deploy in theeve nt of an accident.
The child could be stru ck bythe airbag.
Alw ays ensure that the front passenger air‐
bag is disabled. The PASSENGER AIR BAG
OFF indicator lamp must be lit. NEVER use a
rear wa rdfacing child restra int
on a seat pr otected byan ACTIVE FRONT
AIRB AGin front of it; DE ATH or SERIOUS
INJU RYtotheCH ILD can occur. When
fitting a child restra int sy stem tothe front
passenger seat, obser vetheve hicle-specific
information .
Depending on thech ild restra int sy stem and the
st ature of thech ild, thePA SSENGER AIR BAG
OFF indicator lamp may be off. In this case, do
not fit th ere ar wa rd-facing child restra int sy stem
to the front passenger seat.
Ins tead, fit th ere ar wa rd-facing child restra int
sy stem toa suitable rear seat.
Af terfitting a forw ard-facing child restra int
sy stem tothe front passenger seat: depend‐
ing on thech ild restra int sy stem and thest ature
of thech ild, PASSENGER AIR BAG OFF may be lit
continuously or be off. Alw ays obser vethefo l‐
lowing information. Occupant saf
ety43

&
WARNING Risk of inju ryor death due to
incor rect positioning of thefo rw ard-
fa cing child restra int sy stem
If yo u secure a child in a forw ard-facing child
re stra int sy stem on the front passenger seat
and you position the front passenger seat too
close tothe cockpit, in theeve nt of an acci‐
dent, thech ild could:
R Come into con tact wi th theve hicle inte‐
ri or if thePA SSENGER AIR BAG OFF indi‐
cator lamp is lit, forex ample.
R Bestru ck bythe airbag if thePA SSENGER
AIR BAG OFF indicator lamp is off. #
Alw ays mo vethe front passenger seat
as far back as possible and fully retract
th e seat cushion length adjustment.
Alw ays make sure that the shoulder belt
st ra p is cor rectly routed from the seat
belt outlet on theve hicle tothe shoul‐
der belt guide on thech ild restra int sys‐
te m. The shoulder belt stra p must be
ro uted forw ards and down wards from
th e seat belt outlet. If necessar y,adjust th
e seat belt outlet and the front
passenger seat accordingly. #
Alw ays obser vethech ild restra int sys‐
te m manufacturer's ins tallation instruc‐
tions. When
fitting a child restra int sy stem tothe front
passenger seat, obser vetheve hicle-specific
information .
If a person is sitting in the front passenger
seat: PASSENGER AIR BAG OFF may be lit con‐
tinuously or be off, depending on the person's
st ature.
A person on the front passenger seat must
alw ays obser vethefo llowing information:
R Ifth e front passenger seat is occupied with
an adult or a person with a stature cor re‐
sponding tothat of an adult, thePA SSENGER
AIR BAG OFF indicator lamp must be off. This
indicates that the front passenger airbag is
enabled.
If th ePA SSENGER AIR BAG OFF indicator
lamp is lit continuousl y,an adult or person
with a build cor responding tothat of an adult should not use
the front passenger seat.
Ins tead, they should use a rear seat.
R Ifth e front passenger seat is occupied by a
person of smaller stature (e.g. a teenager or
small adult), thePA SSENGER AIR BAG OFF
indicator lamp either lights up continuously
or remains off, depending on there sult of the
classi fication.
- PASSENGER AIRB AGOFF is off: mo vethe
front passenger seat as far back as possi‐
ble or a person of smaller stature should
use a rear seat.
- Ifth ePA SSENGER AIRB AGOFF indicator
lamp is lit continuously: a person of
smaller stature should not use the front
passenger seat. &
WARNING Risk of inju ryor death when
th ePA SSENGER AIR BAG OFF indicator
lamp is lit
If th ePA SSENGER AIR BAG OFF indicator
lamp remains lit af terth e sy stem self-test,
th e front passenger airbag is disabled. It will
not be deplo yed in theev ent of an accident. 44
Occupant saf ety

In addition,
they may operate vehicle equip‐
ment. #
Never lea vechildren and animals unat‐
te nded in theve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle.
This also applies tomobile phones if the
"Digital Car Key in the smartphone"
function is activated via the Mercedes
connect me web app. &
WARNING This poses an increased risk
of death due toheat strokeorexposure
to cold in theve hicle
If persons – particularly children – experi‐
ence prolonged exposure toextremely high
or low temp eratures, this poses a risk of
injury or evenfa ta l injur y. #
Never lea veanyone – pa rticularly chil‐
dren – unat tended in theve hicle. &
WARNING Risk of bu rns when thech ild
seat is exposed todirect sunlight
If th ech ild restra int sy stem is exposed to
direct sunlight or heat, parts could heat up.
Children could suf fer burns on these parts,
particularly on me tallic parts of thech ild
re stra int sy stem. #
Alw ays make sure that thech ild
re stra int sy stem is not exposed to
direct sunlight. #
Protect it with a blank et,fo rex ample. #
Ifth ech ild restra int sy stem has been
ex posed todirect sunlight, allow it to
cool before secu ring a child into it. #
Never lea vechildren unat tended in the
ve hicle. To
impr oveprotection forch ildren younger than
12 years old or under 1.50 m in height,
Mercedes-Benz recommends you obse rvethe
fo llowing information:
R Only secure children using a child restra int
sy stem which is appropriate tothe height, age and
weight of thech ild and suitable for
Mercedes-Benz vehicles. Be sure toobser ve
th e instructions for cor rect use of thech ild
re stra int sy stem.
R Alw ays ins tall a child restra int sy stem on a
re ar seat if possible.
R Onlyuse thefo llowing securing sy stems for
ch ild restra int sy stems:
- the seat belt sy stem
- the ISOFIX or i-Size mounting brac kets
- theTo pTe ther anchorages
R The manufacturer's ins tallation instructions
fo rth ech ild restra int sy stem.
R The warning labels in theve hicle interior and
on thech ild restra int sy stem. &
WARNING Risk of inju ryor death caused
by incor rect ins tallation of thech ild
re stra int sy stem
If th ech ild restra int sy stem is incor rectly
ins talled on a suitable seating position, it
cannot per form its intended pr otective func‐
tion. Occupant saf
ety47