ECU MERCEDES-BENZ E-CLASS CABRIOLET 2018 Service Manual

ECO Assi
stanal yses data forth eve hicle's expec‐
te dro ute. This allo wsthe sy stem tooptimally
adjust the driving style fo rth ero ute ahead, sa ve
fuel and recuperate. If the sy stem de tects an
eve nt ahead, e.g. a speed limit or a roundabout,
it will appear on the multifunction display 1.
The following symbols can be displa yed: Not all
events can be displa yed, depending on the
engine type. 1
Event ahead
2 Distance totheeve nt ahead
3 "Foot off the accelerator" prom pt
A di fferent number of segments 2will appear
around the symbol depending on the dis tance to
th eeve nt ahead:
R Few segments: theev ent ahead is near.
R Many segments: theev ent ahead is fur ther
aw ay.
When theve hicle nears theeve nt, ECO Assi st
will calculate the optimal speed for maximum
fuel economy and recuperati veenergy based on
th e dis tance, speed and downhill gradient. The Foot off the accelerator
messagewill appear on
th e multifunction displa y.Ifth e driver lifts off the
accelerator pedal in good time, there maining
segments on the display will turn green until the
eve nt shown is reached. The driv etra in will be
set for maximum fuel econom y.The vehicle will
coast, with the combustion engine switched off
if necessar y,and recuperate on its own using
th e electric mo tor.Re cuperation will charge the
batter y.
If th ere is no response totheFoot off the accel-
erator prompt,th e segments will remain white.
The event will be shown for a short time af ter it
has been passed.
If th eeve nt in volves a vehicle ahead and when
th e coast-down recommendation is given, all
segments will immediately turn green once there
is a response totheFoot off the accelerator
prom pt.
Fo rAc tive ECO Assi stin drive program ;,
symbol 3will appear on the multifunction dis‐
play and on the head-up display beside transmis‐
sion position h. Symbol3will also appear
when the assis tant displ ayis not selec ted. 16 6
Driving and pa rking

Engaging
reve rsege ar R #
Depress the brake pedal and push the
DIRECT SELECT le ver upwards past thefirst
point of resis tance.
The transmission position displ aysho wsk
in the multifunction displa y.
Engaging neut ral N #
Depress the brake pedal and push the
DIRECT SELECT le ver up or down tothefirst
point of resis tance.
The transmission position displ aysho wsi
in the multifunction displa y.
Subsequently releasing the brake pedal will
allow youto mo vetheve hicle freel y,e.g. topush
it or tow it away.
Proceed as follo ws ifyo uwa ntthe automatic
transmission toremain in neutral i
i eve n if
th e ignition is switched off: #
start theve hicle. #
depress the brake pedal and engage neutral
i. #
release the brake pedal. #
switch off the ignition. %
Ifyo uth en exitth eve hicle leaving theke y in
th eve hicle, the automatic transmission
re mains in neutral i.
Engaging park position P #
Obser vethe no tes on parking theve hicle
(→ page 179). #
Dep ress the brake pedal until theve hicle is
st ationar y. #
When theve hicle is stationar y,press button
j.
Pa rk position is only engaged when the trans‐
mission position display jis shown in the
multifunction displa y.If no transmission posi‐
tion display jappears, secure theve hicle
to preve nt it from rolling away.
Pa rk position jis engaged automatically if one
of thefo llowing conditions is me t:
R you swit choff the ignition when theve hicle
is stationary and the transmission is in posi‐
tion hork.
R you open the driver's door when theve hicle
is stationary or when driving at a very low speed and
the transmission is in position h
or k.
% Tomanoeuvre with an open driver's door,
open the driver's door while stationary and
engage transmission position hork
again.
Engaging drive position D #
Depress the brake pedal and push the
DIRECT SELECT le ver down past thefirst
point of resis tance.
The transmission position displ aysho wsh
in the multifunction displa y.
When the automatic transmission is in transmis‐
sion position h, it shiftsthege ars automati‐
call y.This depends on thefo llowing factors:
R the selected drive prog ram
R the position of the accelera tor pedal
R the driving speed 17 0
Driving and pa rking

%
Avoid storing AdBlue ®
re fill con tainers per‐
manently in theve hicle. Pa
rking Pa
rking theve hicle &
WARNING Risk offire caused byhot
ex haust sy stem parts
Flammable material such as lea ves, grass or
twigs may ignite if they come into contact
wi th hot parts of theex haust sy stem or
ex haust gasflow. #
Park theve hicle so that no flammable
material can come into con tact wi thhot
ve hicle components. #
In particular, do not park on dry grass‐
land or har vested grain fields. &
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 j.
R Starting the engine.
In addition, they may operate vehicle equip‐
ment and become trapped. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. *
NO
TEDama getotheve hicle due toit
ro lling away #
Alw ays secure theve hicle against roll‐
ing away. 1
Start/ stop button #
On uphill or downhill inclines, turn the front
wheels towa rdsth eke rb. #
Apply the electric parking brake. #
Select transmission position j. #
Switch off the ignition. #
Lock theve hicle. Driving and parking
17 9

R
Onthe Internet at http://
www.homelin k.com.
Opening/closing a garage door
Requ irements:
R The cor responding button is programmed to
operate the door. #
Press and hold buttons 1,2or3 until
th e door opens or closes. #
If indicator lamp 4flashes yellow af ter
appr oximately 20 seconds: press and hold
th e pr eviously pressed button again until the
door opens or closes.
Clearing thega rage door opener memo ry #
Press and hold buttons 1and 3.
Indicator lamp 4lights up yello w. #
If indicator lamp 4flashes green: release
buttons 1and 3.
The entire memo ryhas been dele ted.
Ra dio equipment appr oval numbers for the
ga rage door opener
Ra dio equipment appr oval numbers 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 18 2
Driving and pa rking

R
The transmission is in position hork and
yo u depress the accelera tor pedal or you
shift from transmission position jtoh or
k.
R Ifth e transmission is in position k,the boot
lid must be closed.
If th e seat belt tongue is not inser ted into the
seat belt buckle of the driver's seat, thefo llow‐
ing conditions must be fulfilled:
R The driver's door is closed.
R You mo vethe transmission out of transmis‐
sion position joryou ha veprev iously
driven fasterthan 3 km/h.
R Ifth e transmission is in position k,the boot
lid must be closed.
When the electric parking brake is released, the
re d! indicator lamp in the instrument clus‐
te r goes out. Applying/releasing
the electric pa rking
brake manually
Applying #
Push handle 1.
The red! indicator lamp appears in the
instrument clus ter. %
The electric parking brake is only securely
applied if the indicator lamp is lit continu‐
ously.
Re leasing #
Swit chon the ignition. #
Pull handle 1.
The red! indicator lamp in the instru‐
ment 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 red! indicator lamp appears
in the instrument clus ter. 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 disuse dama ge. Driving and pa
rking 18 5

Pulling
away with Active Di stance Assist
DISTRO NIC #
Remo veyour foot from the brake pedal and
activate Active Dis tance Assi stDISTRONIC. #
Press rocker switch 4(RES) up.
or #
Depress the accelerator pedal briefly and
fi rm ly.
The functions of Active Dis tance Assi st
DISTRONIC continue tobe car ried out.
Deactivating Active Di stance Assist
DISTRO NIC &
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. #
Press rocker switch 4down (CNCL).
% Ifyo u brake, deactivate ESP ®
or if ESP ®
inter venes, Active Dis tance Assi st
DISTRONIC is deacti vated.
Increasing or reducing the speed #
Press rocker switch 3up (SET+) or down
(SET-) tothe pressure point.
The stored speed is increased or reduced by
1 km/h.
or #
Press and hold rocker switch 3up/down to
th e pressure point.
The stored speed is increased or reduced in
increments of 1 km/h.
or #
Press rocker switch 3beyond the pressure
point.
The stored speed is increased or reduced by
10 km/h.
or #
Press and hold rocker switch 3beyond the
pressure point.
The stored speed is increased or reduced in
increments of 10km/h.
Re ducing or inc reasing the specified dis‐
tance from theve hicle in front #
Toincrease the specified distance: press
rock er switch 2down. #
Toreduce the speci fied distance: press
rock er switch 2up. Fu
nction of Active Speed Limit Assi st %
The following function is countr y-dependent
and only available in conjunction with the
Driving Assi stance Package. Driving and parking
205

must be initia
ted. An immediate lane change is
on ly possible on mo torw ay sections without
speed limits.
If th e sy stem is impaired, Active Lane Change
Assi stmay be cancelled. If it is cancelled, the
Lane change cancelled message appears inthe
multifunction display and a warning tone sounds. &
WARNING Risk of accident from chang‐
ing lane toan occupied adjacent lane
Lane Chan geAssi stcannot al ways detect
clear lyifth e adjacent lane is free.
The lane change might be initiated although
th e adjacent lane is not free. #
Before changing lanes, make sure that
th e neighbouring lane is free and there
is no danger to otherroad users. #
Monitor the lane change. &
WARNING Risk of accident if Lane
Change Assi stunexpectedly stops func‐
tioning
If th e sy stem limitations for Lane Change
Assist ha vebeen reached, there is no guar‐
antee that the sy stem will remain active.
Lane Change Assist cannot then assist you
by applying steering torques. #
Alw ays monitor the lane change and
ke ep your hands on thesteering wheel.
Obser vethe tra ffic conditions and steer
and/or brake if necessar y. Sy
stem limitations
The sy stem limitations of Active Steering Assist
apply toActive Lane Change Assi st
( → page 208).
The sy stem may also be impaired or may not
function in thefo llowing situations:
R The sensors in there ar bumper are dirty,
damaged or co vered, for ins tance by a
st icke r or ice and sno w.
R The exterior lighting is malfunctioning. Ac
tivating/deactivating Active Lane Change
Assi st
Multimedia sy stem:
Vehicle kAssistance #
Select Lane change assist. #
Activate Oor deacti vate ª the function.
Fu nction of Active Eme rgency Stop Assist
If th e driver continually ignores the visual or
acoustic warning toput their hands on thesteer‐
ing wheel, theBeginning emergency stop mes‐
sage appears in the multifunction displa y.Ifthe
driver still does not respond, Active Dis tance
Assi stDISTRONIC reduces the speed. The vehi‐
cle is decelerated in stages toast andstill. At
speeds below 60 km/h the hazard warning
lights switch on automaticall y.
When theve hicle is stationar y,thefo llowing
actions are car ried out:
R theve hicle is secured with the electric park‐
ing brake
R Active Dis tance Assi stDISTRONIC is ended
R theve hicle is unloc ked Driving and pa
rking 211

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. while waiting in traf fic.
The HOLD function is only an aid. The responsi‐
bility forth eve hicle safely standing still remains
with the driver.
Sy stem limitations
The HOLD function is only intended toprov ide
assis tance when driving and is not a su fficient
means of safeguarding theve hicle against rolling
aw ay when stationar y.
R The incline must not be greater than 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 accelerator 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 The transmission is in position h,kori. 214
Driving and pa rking

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.
The HOLD function is deactivated in thefo llow‐
ing situations:
R When Active Dis tance Assi stDISTRONIC is
acti vated.
R The transmission is switched toposition j.
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 supp lyis insuf ficient. DY
NA MIC BODY CONT ROL function DY
NA MIC BODY CONTROL continuously adjusts
th ech aracteristics of the suspension dampers to
th e cur rent operating and driving conditions.
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
R The driving style
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 clearance, 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. You also ha vethe
option of manually adjusting theve hicle le vel.
AIR BODY CONTROL includes thefo llowing com‐
ponents and functions:
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
greater ground clearance
R ADS PLUS (Adaptive Damping Sy stem with
const ant damping forc e adjustment)
R DYNA MIC SELECT switch and le vel button Driving and parking
215

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, symbol 1appea rsinthe
multimedia sy stem displa y.Ifth e driver does not
re spond tothewa rning, theve hicle's brakes can
be applied automaticall y.To do this, the function
uses thera dar sensors in the 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.
Sy stem limitations
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 kAssistance Camera &
Park. Assist Manoeuvring assist. #
Activate Oor deacti vate ª the function.
% Manoeuvring assis tance mu stbe active for
th e function of Drive AwayAssi st
( → page 234). 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
in time. The sy stem is not a substitute for a well-
re sted and attentive driver. On long journe ys,ta
ke regular breaks in good time that allow for
adequate recuperation.
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‐
pla y.Yo u can ackn owledge the message and
tak e a break where necessar y.Ifyo u do not take
a break and ATTENTION ASSIST continues to
de tect increasing lapses in concentration, you
will be warned again af ter a minimum of
15 minutes. Driving and parking
235