ECU MERCEDES-BENZ E-CLASS SALOON 2017 Service Manual

*
NO
TEDama getotheve hicle or the driv‐
et ra in caused bytheve hicle rolling away #
Alw ays proper lysecure theve hicle
against rolling away. #
On uphill or downhill inclines, turn the front
wheels towa rdsth eke rb. #
Vehicles with manual transmission:
engage firs t1 orreve rsege ar k. #
Vehicles with automatic transmission:
engage transmission position j. #
Apply the electric parking brake. #
Press button 1once.
% When you swit choff theve hicle, you can still
opera tethe side windo wsand the panorama
sliding sunroof forfive minutes. Garage door opener
Prog
ramming buttons for the garage door
opener &
WARNING Risk ofexhaust gas poisoning
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases causes poisoning. #
Never lea vethe engine running in an
enclosed space wi thout suf ficient venti‐
lation. &
WARNING Risk of inju ryand ent rapment
when opening thega rage door using the
ga rage door opener
When you operate or program thega rage
door with the integrated garage door opener,
persons in thera nge of mo vement of the
ga rage door can become trapped or stru ck
by thega rage door. #
When using the integrated garage door
opener, alw ays make sure that nobody
is within the sweep of thega rage door. Re
quirements:
R The vehicle is par ked outside of thega rage.
R The engine is switched off. 18 2
Driving and pa rking

Count
ryRadio equipment appr oval
number
South
Africa TA
-20 15/1386
Tu rkey notrequ ired
Uni ted
Arab Emi‐
ra tes ER4
1849/15
Dealer No: DA35176/14
United
St ates FCC ID: NZLM
UAHL5 Brazil
Es
te equipamento opera em caráter secundário,
is to é, não tem direito à pr oteção contra inter fer‐
ência prejudicial, mesmo de es tações do mesmo
tipo, e não pode causar inter ferê ncia a si stemas
operando em caráter primário.
Pa ra maio res informações acessar
www.anatel.go v.br
Fu rther information on the declaration of con‐
fo rm ity for wireless vehicle components
(→ page 24). Electric parking brake
Electric parking brake function (app
lying
automatically) &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If yo u lea vechildren unat tended in theve hi‐
cle, they may be able toset theve hicle in
motion, forex ample by:
R Releasing the parking brake.
R Shifting the automatic transmission out
of park position jor shifting the manual
transmission into neutral.
R Starting the engine.
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" 18 6
Driving and pa rking

%
The electric parking brake is only securely
applied if the indicator lamp is lit continu‐
ously.
Re leasing #
Swit chthe ignition on. #
Pull handle 1.
The ! indicator lamp in the instrument
clus ter goes out.
Emer gency braking #
Press and hold handle 1.
When theve hicle has been braked to a
st andstill, the electric parking brake is
applied. The !indicator lamp appears in
th e instrument clus ter. Information on de
tecting dama geon a
pa rked vehicle If a collision is de
tected when theto w- aw ay pro‐
te ction is acti vated on a loc kedve hicle, you will
re cei venotification:
R onyour smartphone R
inthe multimedia sy stem when you swit ch
on the ignition
Yo u will recei veinformation about thefo llowing:
R the area of theve hicle that may ha vebeen
damaged
R thefo rc e of the impact
The following situations can lead toinadver tent
acti vation:
R the par kedve hicle is mo ved, e.g. in a double-
dec kerga rage
% Deactivate tow- aw ay protection in order to
pr eve nt inadver tent acti vation. If you deacti‐
va te tow- aw ay protection, damage de tection
will also be deactivated.
Sy stem limitations
De tection may be restricted in thefo llowing sit‐
uations:
R theve hicle is damaged without impact, e.g. if
an outside mir ror is torn off or the paint is
damaged byakey
R an impact occurs at low speed R
the electric parking brake is not applied
Information on Mercedes me connect and other
services: http://www.mercedes.me. Note
s on parking up theve hicle If
yo u lea vetheve hicle par ked up for longer than
fo ur we eks, the disconnected battery may be
damaged bydeep dischar ge.
If yo u lea vetheve hicle par ked up for longer than
six weeks, it may suf fer dama geas a result of
lack of use.
% Further information can be obtained at a
qu alified specialist workshop. St
andby mode (extension of the star ter bat‐
te ry 's period out of use) St
andby mode function
Ve hicles without a 48 V electrical sy stem
(EQ Boost technology):
If standby mode is activated, theve hicle can be
par kedfo r an extended pe riod of time without
losing po wer. Driving and pa
rking 18 9

#
Continue driving with care and be ready
to brake, particular lyifAc tive Dis tance
Assi stDISTRONIC warnsyo u. &
WARNING Risk of accident from acceler‐
ation or braking byActive Dis tance
Assi stDISTRONIC
Ac tive Dis tance Assi stDISTRONIC may accel‐
erate or brake in thefo llowing cases, for
ex ample:
R Ifth eve hicle pulls away using Active Dis‐
ta nce Assi stDISTRONIC.
R Ifth estored speed is called up and is
considerably faster or slo werth an the
cur rently driven speed.
R IfAc tive Dis tance Assi stDISTRONIC no
longer de tects a vehicle in front or does
not react toreleva nt objects. #
Alw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times. #
Take into account the tra ffic situation
before calling up thestored speed. &
WARNING Risk of accident due toinsuf‐
fi cient decele ration byActive Dis tance
Assi stDISTRONIC
Ac tive Dis tance Assi stDISTRONIC brakes
yo ur vehicle with up to50 % of the maximum
possible deceleration. If this decele ration is
not su fficient, Active Dis tance Assi st
DISTRONIC alerts you with a visual and
acoustic warning. #
Inthese cases, adjust your speed and
ke ep a suf ficient di stance. #
Brake theve hicle yourself and/or take
ev asive action. &
WARNING Risk of accident due toActive
Dis tance Assi stDISTRONIC still being
activated when you lea vethe driver's
seat
If yo u lea vethe driver's seat while theve hicle
is being braked byActive Dis tance Assi st
DISTRONIC only, theve hicle can rollaw ay. #
Alw ays deactivate Active Dis tance
Assi stDISTRONIC and secure theve hi‐
cle topreve nt it from rolling away
before you lea vethe driver's seat. Re
quirements:
R The vehicle has been star ted.
R The elect ric pa rking brake is released.
R Active Parking Assist is not being used to
park theve hicle or toexit from a parking
space.
R ESP ®
is activated, but is not inter vening.
R The transmission is in position h.
R The driver's door, front passenger door and
there ar doors are closed.
R The bonnet is closed. 208
Driving and parking

HOLD function
HOLD function
The HOLD function holds
theve hicle at a stand‐
st ill without requ iring youto depress the brake
pedal, e.g. when pulling away on steep slopes.
Sy stem limitations
R The incline must not be greaterth an 30%.
Ac tivating/deactivating the HOLD function &
WARNING Risk of an accident due tothe
HOLD function being activated when you
lea vetheve hicle
If yo u lea vetheve hicle while only the HOLD
function is braking theve hicle, theve hicle
can rollaw ay inthefo llowing situations:
R Ifth ere is a malfunction in the sy stem or
in the po wer supply.
R Ifth e HOLD function is deactivated by
depressing the accelera tor pedal or the
brake pedal, e.g. byave hicle occupant. R
Ifth e electrics in the engine compart‐
ment, the battery or the fuses are tam‐
pered with or if the battery is disconnec‐
te d. #
Alw ays deactivate the HOLD function
and secure theve hicle against rolling
aw ay before leaving theve hicle. *
NO
TEDama gefrom auto matic braking When
Active Brake Assi st,Ac tive Dis tance
Assi stDISTRONIC or the HOLD function are
activated, theve hicle brakes autonomously
in cer tain situations.
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations: #
During towing #
In a car wash Re
quirements:
R The vehicle is stationar y.
R The driver's door is closed or the seat belt on
th e driver's side is fastened. R
The engine is running or has been au tomati‐
cally switched off bythe ECO start/ stop
function.
R The electric parking brake is released.
R Active Dis tance Assi stDISTRONIC is not acti‐
va ted.
R Vehicles with automatic transmission: the
transmission is in position h,kori.
Ac tivating the HOLD function #
Dep ress the brake pedal and af ter a short
time depress fur ther until theë display
appears in the multifunction displa y. #
Release the brake pedal.
Deactivating the HOLD function #
Depress the accelerator pedal topull away.
or #
Depress the brake pedal until theë dis‐
play disappears from the multifunction dis‐
pla y. 212
Driving and pa rking

The HOLD function is deactivated in
thefo llow‐
ing situations:
R When Active Dis tance Assi stDISTRONIC is
acti vated.
R Vehicles with automatic transmission:
when transmission position jis selected.
R When theve hicle is secured with the electric
parking brake.
In thefo llowing situations, theve hicle is held by
th e transmission position jorby the electric
parking brake:
R When the seat belt is unfas tened and the
driver's door is opened.
R When the engine is switched off.
R When there is a malfunction in the sy stem or
if th e po wer supply is insuf ficient.
Ve hicles with manual transmission:
The Brake immediately message may also
appear in the multifunction displa y:#
Immedia tely depress the brake pedal firm ly
until thewa rning message disappears.
The HOLD function is deactivated. A horn sounds at
regular inter vals if you turn off
th e engine, remo veyour seat belt and open the
driver's door while the HOLD function is activa‐
te d. If you attem pttolock theve hicle, the horn
to ne becomes louder. The vehicle cannot be
loc ked until you ha vedeactivated the HOLD
function.
% Once you ha veswitched off the engine, you
cannot restart the engine until you ha ve
deactivated the HOLD function. DY
NA MIC BODY CONT ROL DY
NA MIC BODY CONTROL has thefo llowing
ch aracteristics:
R Variable damping characteristics
R Continual adjustment of the damping forc es
The damping characteristics adapt tothe cur rent
operating and driving situation.
The da mping is tuned individually for each wheel
and is af fected bythefo llowing factors:
R The road sur face conditions
R Vehicle load R
The drive program selected
The drive program can be adjus ted using the
DY NA MIC SELECT switch. AIR
BODY CONT ROL AIR
BODY CONT ROL function
AIR BODY CONTROL is an air suspension sy stem
with variable damping for impr oved driving com‐
fo rt. The all-round le vel control sy stem ensures
th e best possible suspension and const ant
ground clea rance, even wi tha laden vehicle.
When driving at speed, theve hicle is lo wered
automatically toimpr ovedriving saf ety and to
re duce fuel consum ption. The option of manually
adjusting theve hicle le vel is also available.
AIR BODY CONTROL comprises:
R Air suspension with variable spring rate
R Automatic le vel control sy stem
R Speed-dependent lo wering toreduce fuel
consum ption
R Manually selec table high-le vel setting for
grea ter ground clea rance Driving and pa
rking 213

R
Ifth e wrong gear is selec ted.
The Drive AwayAssi stfunction is active under
th efo llowing conditions:
R IfPa rking Assist PARKTRONIC is activated.
R Every time thege ar is changed tok orh
when theve hicle is at a standstill.
R Ifth e de tected obs tacle is less than appr ox.
1. 0 m away.
R Ifth e manoeuvring assis tance function is
acti vated in the multimedia sy stem.
Sy stem limitations
Drive AwayAssi stis not available on inclines and
when driving with a trailer.
Fu nction of Cross Traf fic Alert
% Also read the instructions on Blind Spot
Assist (→ page 239).
Ve hicles with Blind Spot Assis t:drivers can
also be warned of any crossing traf fic when
re ve rsing out of a parking space. If a critical sit‐
uation is de tected, a warning symbol appears on
th e camera image of the multimedia sy stem. If
th e driver does not respond tothewa rning, the ve
hicle's brakes can be applied automaticall y.To
do this, the function uses thera dar sensors in
th e bumper. The area adjacent totheve hicle is
continually monitored.
If th era dar sensors are obstructed byvehicles
or other objects, de tection is not possible.
The Cross Traf fic Alert function is acti veunder
th efo llowing conditions:
R If Blind Spot Assist is activated.
R Ifth eve hicle is reve rsing at walking pace.
R Ifth e manoeuvring assis tance function is
acti vated in the multimedia sy stem.
The Cross Traf fic Alert function is not available
on inclines and when driving with a trailer.
Deactivating/activating manoeuv ring assis‐
tance
Multimedia sy stem:
, Vehicle .
System settings .
Active
Parking Assist .
Manoeuvring assistance #
Activate Oor deacti vate ª the function. AT
TENTION ASSI ST Fu
nction of ATTENTION ASSI ST
AT TENTION ASSIST assists you on long, mon oto‐
nous journe ys, e.g. on mo torw ays and trunk
ro ads. If ATTENTION ASSIST de tects indicators
of fatigue or increasing lapses in concentration
on the part of the driver, it suggests taking a
brea k.
AT TENTION ASSIST is only an aid. It cannot
alw ays de tect fatigue or lapses in concentration
until too late. The sy stem is not a substitute for a
we ll-res ted and attentive driver. On long jour‐
ne ys,ta ke regular breaks in good time that allow
fo r adequ aterecuperation.
Yo u can choose between two settings.
R Standard: normal sy stem sensitivity.
R Sensitive: higher system sensitivity. The
driver is warned earlier and the attention
le ve l de tected byATTENTION ASSIST is adap‐
te d according ly.
If dr owsiness or increasing lapses in concentra‐
tion are de tected, theATTENTION ASSIST: Take
a break! warning appears in the Instrument Dis‐ Driving and parking
237

Make sure of
thefo llowing before starting a jour‐
ney:
R the tyre pressure on there ar axle of theto w‐
ing vehicle is set for a maximum load
R the lighting of the connected trailer is opera‐
tional
R Vehicles without LED headlamps or MUL‐
TIBEAM LED headlamps: The headlamps
ha ve been set cor rectl y.
In theeve nt of increased rear axle load, the car/
trailer combination may not exceed a maximum
speed of 100 km/h forre asons concerning the
operating permit. This also applies in countri es
in which the permissible maximum speed for
car/trailer combinations is ab ove100 km/h. Extending/
retracting the ball ne ckfully elec‐
trically &
WARNING Risk of accident due tothe
ball neck not being engaged
If th e ball neck is not engaged, the trailer
may come loose. #
Make sure that the ball neck securely
engages and loc ksinto place. *
NO
TEDama getothe full y-electric trailer
hitch The fully-elect
ric trailer hitch could be
mechanically damaged byapplying additional
pressure when the ball neck is being exten‐
ded or retracted. #
Do not ma kethe ball neck extend/
re tract faster by applying additional
pressure. Re
quirements:
Make sure of thefo llowing before extending/
re tracting the ball neck fully electrically:
R Shift the transmission toposition jori.
R The range of mo vement is clear.
R Only when retracting: remo vethe trailer
cables or adap ter plugs. Extending/r
etra cting the ball neck fully elec‐
trically #
Pull swit ch2.
Indicator lamp 1flashes and theTrailer
coupling extending… display message
appears on the multifunction displa y.
The ball neck extends fully electrically. Driving and pa
rking 245

#
Wait until the ball neck has loc ked in place.
The ball neck is securely loc ked in place
when indicator lamp 1lights up continu‐
ousl y.
If th e ball neck is not securely loc ked in
place, indicator lamp 1flashes and the
Check trailer hitch lock displaymessa ge
appears on the multifunction displa y. #
Pull switch 2.
Indicator lamp 1flashes and theTrailer
coupling extending… display message
appears on the multifunction displa y.
The ball neck retracts fully electrically. #
Wait until the ball neck has loc ked in place.
The ball neck is securely loc ked into place
once indicator lamp 1goes out.
If th e ball neck is not securely loc ked in
place, indicator lamp 1flashes and the
Check trailer hitch lock displaymessa ge
appears on the multifunction displa y.
Obser vethe information on the displa ysinthe
instrument clus ter:
R Warning and indicator lamps (→ page 438)
R Display messages (→ page 381) Coupling up/uncoupling a trailer
&
WARNING Risk of inju ryfrom theve hicle
le ve l being changed
Ve hicles with le vel control sy stem: the
ve hicle le vel may be changed unin tentional ly,
e.g. by ot her persons. You may become trap‐
ped if you couple up or uncouple a trailer
while theve hicle le vel is changing. In addi‐
tion, other people could become trapped if
th eir limbs are between theve hicle body and
th e tyres or underneath theve hicle.
When coupling up or uncoupling a trailer,
make sure that: #
The doors or tailgate are not opened or
closed. #
Do not initiate the le vel control sy stem
and do not operate theDY NA MIC
SELECT switch. #
The vehicle is not loc ked or unloc ked. 246
Driving and pa rking

Re
quirements:
R the ball neck must be extended fully electri‐
cal lyand engaged in the securely loc ked
position.
Tr ailers with a 7-pin plug can be connec tedto
th eve hicle with thefo llowing adap ters:
R adap ter plug
R adapte r cable
The trailer will be cor rectly de tected bytheve hi‐
cle only if thefo llowing conditions are me t:
R the trailer is connected cor rectly
R the trailer lighting sy stem is in working order
The operation of thefo llowing sy stems depends
on the trailer being connected cor rectly:
R Active Lane Keeping Assist
R ESP ®
R Parking Assist PARKTRONIC
R Active Parking Assist
R Blind Spot Assist or Active Blind Spot Assi stCoupling up a trailer
* NO
TEDama getothe battery due tofull
discharge Charging
the trailer battery using the po wer
supply of the trailer can damage the batter y. #
Do not use the po wer supp lyto charge
th e trailer batter y. #
Remo vethe co ver from the ball head and
st ore it in a safe place (→ page107). #
Position the trailer on a le vel sur face behind
th eve hicle and couple it up totheve hicle. #
Open the soc ket co ver. #
Insert the plug connector with lug 1into
groo ve3 onthe soc ket. #
Turn bayonet coupling 2clockwise as far as
it will go. #
Let the co ver engage. #
Secure the cable tothe trailer with cable ties
(if you are using an adap ter cable). #
Make sure that cable is alw ays slack for ease
of mo vement during cornering. #
Push the combination switch upwards and
down wards and check whe ther the cor re‐
sponding turn signal light on the trailer is
fl ashing.
A display message may appear on the multifunc‐
tion display even if the trailer has been connec‐
te d cor rectly:
R LEDs ha vebeen ins talled on the trailer light‐
ing sy stem
R the cur rent has fallen below the trailer light‐
ing sy stem's minimum cur rent (50 mA) Driving and pa
rking 247