brakes MERCEDES-BENZ C-Class COUPE 2017 CL205 User Guide

Hill start assist
Hill start assist helpsyou when pulling awa yfor-
wards or in reverse on an uphill gradient. It holds
the vehiclef oras hort time after you have
removed you rfoot from the brake pedal. This
gives you enoug htime to move you rfoot from
the brake pedaltot he accelerator pedala nd to
depress it before the vehicleb egins to roll.
GWARNING
After ashort time, hil lstart assist wil lnolon-
ger brake you rvehicl eand it coul droll away.
There is arisk of an accident and injury.
Therefore, quickly move you rfoot from the
brake pedaltot he accelerator pedal. Never
leave the vehiclew hen it is held by hillstart
assist.
Hill start assist is not active if:
Ryou are pulling awa yonalevelroad or on a
downhill gradient.
Rthe transmission is in position N.
Rthe electric parking brake is applied.
RESP®is malfunctioning.
ECOstart/stop function
Introduction
The ECO start/stop function switches the
engine off automatically if the vehicleiss topped
under certain conditions.
The engine starts automatically when the driver
wants to pul lawa ya gain. The ECO start/stop
function thereby help syou to reduce the fuel
consumption and emissions of you rvehicle.
Important safety notes
GWARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically .The vehiclem ay beginmoving.
There is arisk of accident and injury.
If you wis htoexit the vehicle, alway sturn off
the ignitio nand secure the vehiclea gainst
rolling away.
General notes
:ECO start/stop display
The ECO start/stop function is activated when-
ever you start the engine using the SmartKey or the Start/Stop button.
If the engine has been switched off automati-
call ybyt he ECO start/stop function, the è
ECO symbol is shownint he multifunction dis-
play.
Mercedes-AMG vehicles: the ECO start/stop
function is only available in drive program C.
Automatic engine switch-off
If the vehicleisb raked toastandstil lin D or N,
the ECO start/stop function switches off the
engine automatically.
The ECO start/stop function is operational
when:
Rthe indicator lamp in the ECO button is lit
green.
Rthe outside temperature is withi nthe range
that is suitable for the system.
Rthe engine is at normal operating tempera-
ture.
Rthe set temperature for the vehiclei nterior
has been reached.
Rthe battery is sufficiently charged.
Rthe system detects that the windshiel disnot
fogged up when the air-conditioning system is switched on.
Rthe hood is closed.
Rthe driver's door is closed and the driver's
seat beltisf astened.
All of the vehicle's systems remai nactive when
the engine is stoppeda utomatically.
The HOLD function can als obeactivated if the
engine has been switched off automatically .Itis
then not necessary to continue applying the
brakes during the automatic stop phase. When
you depress the accelerator pedal, the engine
starts automatically and the braking effect of
the HOLD function is deactivated.
Driving135
Driving and parking
Z

The ECO display consistsofthree sections, with
an inner and outer area. The section scorre-
spond to the following three categories:
:Acceleration (evaluation of all accel-
eration processes):
Rthe outer area fills up and the inner area lights up green: moderate
acceleration ,especially at higher
speeds
Rthe outer area empties and the
inner area is gray: sporty acceler-
ation
;Coasting (evaluation of all decelera-
tion processes):
Rthe outer area fills up and the inner area lights up green: anticipatory
driving, keeping your distance and
early release of the accelerator.
The vehicle can coast without use
of the brakes.
Rthe outer area empties and the
inner area is gray: frequent heavy
braking
=Constant (continuous evaluation
over the entir ejourney):
Rthe outer area fills up and the inner
area lights up green: constant
speed and avoidance of unneces-
sary acceleration and deceleration
Rthe outer area empties and the
inner area is gray: fluctuations in
speed
The three inner areas display the current driving
style and light up green as aresult of aparticu-
larly economical driving style. Dependin gonthe
driving situation, up to two areas may light up
simultaneously.
At the beginning of the journey, the three outer
areas are empty and fill up as aresult of eco-
nomical driving. Ahigher level indicates amore
economical driving style. If the three outer areas
are completely filled at the same time, the driver
has adopted the most economical driving style
for the selected settings and prevailing condi-
tions. The ECO display border lights up.
The ECO display does not indicate the actual fuel consumption. The additionally achieved range
displayed under Bonus fr. Start
does not
indicate afixed consumption reduction. In addition to driving style, the actual consump-
tion is affected by other factors, such as:
Rload
Rtire pressure
Rcold start
Rchoice of route
Relectrical consumer
sswitched on
These factor sare not included in the ECO dis-
play.
An economical driving style specially requires
driving at moderate engine speeds.
Achievingah igher value in the categories
"Acceleration" and "Constant":
Robserve the gearshift recommendations.
Rdrive in drive program E.
On long journeys at aconstant speed, e.g. on the
highway, only the outer area for "constant" will
change.
The ECO display summarizes the driving style
from the start of the journey to its completion.
Therefore, there are more marked changes in
the outer areas at the start of ajourney. On lon-
ger journeys, there are fewer changes. For more
marked changes, perform amanual rest
(
Ypage 206).
For further information on the ECO display,s ee
(
Ypage 205).
Braking
Important safety notes
GWARNING
If you shift down on aslippery road surface in
an attempt to increase the engine's braking
effect,t he drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on aslippery road surface.
Downhill gradients
!On long and steep gradients, you must
reduce the load on the brakes by shiftin gtoa
lower gear in good time. This allows you to
take advantage of the engine's braking effect.
This helps you to avoid overheating the
brakes and wearing them out excessively.
Driving tips157
Driving and parking
Z

When you take advantage of engine braking, a
drive wheel may not turn for some time, e.g.
on aslippery road surface. This could cause
damage to the drive train. This type of damage is not covered by the Mercedes-Benz war-
ranty.
Heavy and light loads
GWARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This increases the stoppin gdistanc eand can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as afootrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
!Depressin gthe brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to aheavy
load, do not stop the vehicle immediately. Drive
on for ashort while. This allows the airflow to
cool the brakes more quickly.
Wet roads
If you have driven for along time in heavy rain
without braking, there may be adelayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You have to depress the brake pedal more
firmly. Maintain agreater distanc efrom the
vehicle in front.
After driving on awet road or having the vehicle
washed, brake firmly while paying attention to
the traffic conditions. This will warm up the
brake discs, thereby drying them more quickly
and protecting them against corrosion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, alayer of salt resi-
due may form on the brake discs and brake
pads. This can result in asignificantly longer
braking distance.
RIn order to prevent any salt build-up, apply the
brakes occasionally while paying attention to
the traffic conditions.
RCarefully depress the brake pedal and the
beginnin gand end of ajourney.
RMaintain agreater distanc etothe vehicle
ahead.
Servicing the brakes
!The brake fluid level may be too low, if:
Rif the red brake warning lamp lights up in
the instrument cluster and
Ryou hear awarning ton ewhile the engine is
running
Observe additional warning messages in the
multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immediately. Consult aqualified specialist workshop to
arrange this.
!Vehicles with 4MATIC: function or per-
formance test smay only be carried out on a2-
axle dynamometer. If you wish to operate the
vehicle on such adynamometer, please con-
sult aqualified specialist workshop in
advance. You could otherwise damage the
drive train or the brake system.
!Vehicles with 4MATIC: the ESP®system
operates automatically. The engine and the
ignition must therefore be switched off (the
SmartKey must be in position 0or 1in the
ignition lock or the Start/Stop button must be
in position 0or 1)ift he electric parking brake
is tested on abrake dynamometer.
Brakin gtriggered automatically by ESP
®may
cause severe damage to the brake system.
All checksa nd maintenance work on the brake
system must be carried out at aqualified spe-
cialist workshop.
Have brake pads installed and brake fluid
replaced at aqualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the functional-
ity of your brakes at regular intervals.
Information on BAS (Brake Assist )(
Ypage 62)
and BAS PLUS (Brake Assist PLUS) (Ypage 62).
158Driving tips
Driving and parking

For safety reasons, Mercedes-Benz recom-
mends only installing the following brake disks
and brake pads/linings:
Rbrake disks that havebeena pproved by
Mercedes-Benz
Rbrake pads/lining sthat hav ebeena pproved
by Mercedes-Benz or that are of an equivalent
standard of quality
Other brake disks or brake pads/lining scan
compromise the safety of your vehicle.
Alway sreplace al lbrake disks and brake pads/
linings on an axl eatthe sam etime. Always
install new brake pads/lining swhenr eplacing
brake disks.
The vehicle is equipped with lightweight brake
disks to which the wheel assembly with rim and
threaded connectio nismatched.
The use of brake disks other than those
approved by Mercedes-Benz can chang ethe
track width and is subject to approval ,ifappli-
cable.
Shock-typ eloads whe nhandling the brake
discs, such as whe nchanging wheels ,can lead
to areduction in comfortw hend riving with light-
weigh tbrake discs. Avoid shock-type loads on
the lightweight brake disks, particularly on the
brake plate.
Mercedes-Benz recommends that yo uonly use
brake fluid that has bee nspeciall yapproved for
your vehicle by Mercedes-Benz, or which corre-
sponds to an equivalent quality standard .Brake
fluid which has not bee napproved for
Mercedes-Benz vehicles or which is not of an
equivalent quality could affect your vehicle's
operating safety.
High-performance and ceramic brakes
(Mercedes AMG vehicles)
The AMG brake systems are designe dfor heavy
loads. Thism ay leadtonoisew henb raking. This
will depend on:
RSpeed
RBraking force
REnvironmental conditions, such as tempera-
ture and humidity
The wear of individua lcomponents of the brake
system, such as the brake pads/lining sorbrake
discs, depends on the individua ldriving style
and operating conditions.
For this reason, it is impossible to state amile-
ag ethat will be valid under al lcircumstances. An aggressive driving styl
ewilll ea dtoh ighw ear.
You can obtain more information on this from a
qualified specialist workshop.
New and replaced brake pads and discs only
reach thei roptimum braking effect afte rseveral
hundred kilometers of driving. Compensate for
this by applying greater force to the brake pedal.
Kee pthis in mind ,and adap tyou rd riving and
braking accordingly during this break-in period.
Excessive heavy braking results in correspond-
ingl yhighb rake wear. Observe the brake wear
warning lamp in the instrument cluster and note
any brake statu smessages in the multifunction
display. Especiall yfor hig hperformance driving,
it is important to maintain and hav ethe brake
system checked regularly.
Drivin gonw etroads
Hydroplaning
If water has accumulated to acertain depth on
the roads urface,there is adanger of hydro-
planing occurring, even if:
Ryo ud rive at low speeds.
Rthe tires hav eadequate treadd epth.
For this reason, in the event of heavy rai norin
conditions in which hydroplaning may occur,
yo um ustd rive in the following manner:
Rlower your speed.
Ravoid ruts.
Ravoid sudden steering movements.
Rbrake carefully.
Drivin gonfloodedroads
!Bearinm ind that vehicles traveling in front
or in the opposite directio ncreate waves. This
may cause the maximum permissibl ewater
depth to be exceeded.
Failure to observe these notes may result in
damag etothe engine, electricals ystems and
transmission.
If yo uhavetod rive on stretche sofroadonw hich
water has collected ,please bea rinmind that:
Rin the case of standing water, the water level
may be no higher than the lower edg eofthe
vehicle body
Ryo us hould drive no faster than at awalking
pace
Drivin gtips159
Drivin gand parking
Z

Winter driving
GWARNING
If you shift downonaslipperyr oad surface in
an attempt to increas ethe engine' sbraking
effect, the drive wheels coul dlose their grip.
There is an increased dange rofskidding and
accidents.
Do not shift downf or additionalengine brak-
ing on aslipperyr oad surface.
GDANGER
If the exhaust pip eisblocked or adequate
ventilation is not possible ,poisonousg ases
such as carbo nmonoxide (CO )may enter the
vehicle. This is the case, e.g. if the vehicle
becomest rappedinsnow. There is arisk of
fatal injury.
If you leave the engine or the auxiliary heating
running, make sure the exhaust pip eand area
around the vehicl eare clearofs now. To
ensure an adequate supply of fresh air, open a
window on the side of the vehicl ethat is not
facing into the wind.
Have you rvehicl ewinter-proofed at aqualified
specialist worksho patthe onset of winter.
Drive particularly carefully on slipperyr oad sur-
faces. Avoid sudden acceleration, steering and
braking maneuvers. Do not use the cruis econ-
trol or DISTRONIC PLUS.
If the vehicl ethreatens to skid or cannot be
stoppedw hen moving at low speed:
XShift the transmission to position N.
The outside temperature indicator is not
designed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Changes in the outside temperature are dis-
played after ashort delay.
Indicated temperatures just above the freezing
point do not guarantee that the road surface is
free of ice. The road may still be icy, especially in
wooded area soronbridges. The vehicl ecould
skid if you fail to adapt you rdriving style .Always
adapt you rdriving style and drive at aspeedt o
sui tthe prevailing weather conditions.
You should pay special attention to road condi-
tions when temperatures are around freezing
point. For more information on driving with snow
chains, see (
Ypag
e319).
For more information on driving with summer
tires, see (
Ypag e318).
Observe the notes i
n the "Winter operation" sec-
tion (Ypag e318).
Driving systems
Mercedes-Ben zIntelligen tDrive
Mercedes-Benz Intelligent Drive stands for inno-
vative drive rassistance and safety systems
which enhance comfort and support the drive rin
critical situations. With these intelligent co-ordi-
nated systems Mercedes-Benz has set amile-
stone on the path towards autonomous driving.
Mercedes-Benz Intelligent Drive embraces all
elements of active and passive safety in one well
though tout syste m–for the safety of the vehi-
cle occupants and that of other road users.
Further information on driving safety systems
(
Ypag e61).
Cruise control
General notes
Cruise control maintains aconstant road speed
for you .Itbrakes automatically in order to avoid
exceeding the set speed. Change into alower
gearing ood time on long and steep downhill
gradients. This is especially important if the
vehicl eisladen. By doing so, you wil lmake use
of the braking effect of the engine. This relieves
the loa donthe brake syste mand prevents the
brakes from overheating and wearing too
quickly.
Use cruis econtrol only if road and traffic con-
ditions make it appropriate to maintain asteady
speedf orap rolonged period. You can store any
road speeda bove 20 mph (30 km/h).
Important safety notes
If you fail to adapt you rdriving style ,cruis econ-
trol can neither reduce the risk of an accident
nor override the law sofphysics. Cruise control
cannot take into account the road ,traffic and
weather conditions. Cruise control is only an
aid .You are responsiblef or the distance to the
160Driving systems
Driving and parking

vehicleinfront, for vehicl espeed, for braking in
good time and for staying in you rlane.
Do not use cruise control:
Rin road and traffic conditions which do not
allow you to maintai naconstant speed, e.g. in
heavy traffic or on winding roads
Ron slippery road surfaces. Braking or accel-
erating could caus ethe drive wheels to lose
traction and the vehicl ecould then skid
Rwhen there is poor visibility, e.g. due to fog,
heavy rain or snow
If there is achange of drivers ,advise the new
driver of the speeds tored.
iThe speedindicated in the speedometer
may differ slightly from the speeds tored.
Cruise control lever
:Activates or increasesspeed
;Activates or reduces speed
=Deactivates cruise control
?Activates at the current speed/last stored
speed
When you activate cruise control, the stored
speediss howninthe multifunction display for
five seconds. In addition, the ésymbol
appears in the multifunction display.
Speedometer with segments: when cruise
control is activated ,the segments from the
stored speedtot he maximumpermitted speed
light up.
Storing and maintainingt he current
speed
You can store the current speedify ou are driv-
ing faster than 20 mph (30 km/h).
XAccelerate the vehicl etothe desired speed.
XBriefly press the cruise control lever up :or
down ;.
XRemove you rfoot from the accelerator pedal.
Cruise control is activated .The vehicl eauto-
matically maintains the stored speed.
iCruise control may be unable to maintain
the stored speedonu phill gradients. The
stored speedisr esumedwhen the gradient
evens out. Cruise control maintains the
stored speedond ownhill gradients by auto-
matically applying the brakes.
Storing the current spee dorcalling up
the last stored speed
GWARNING
If you call up the stored speeda nd it is lower
than the current speed, the vehicl edeceler-
ates. If you do not know the stored speed, the vehicl ecould decelerate unexpectedly. There
is ar isk of an accident.
Pay attention to the road and traffic condi-
tions before calling up the stored speed. If you
do not know the stored speed, store the
desired speeda gain.
XBriefly pullthe cruise control lever towards
you ?.
XRemove you rfoot from the accelerator pedal.
The first time cruise control is activated ,it
stores the current speedorr egulates the
speedoft he vehicletothe previousl ystored
speed.
Setting aspeed
Keep in mind that it may take abrief moment
until the vehicl ehas accelerated or braked to
the speeds et.
XPress the cruise control lever up :for a
highers peedord own;for alower speed.
XTo adjust the set spee din1 mph incre-
ments (1 km/h increments): brieflypress
Driving systems161
Driving and parking
Z

the cruisecontro llev er up :or down ;to
the pressure point.
Ever ytim et he cruis econtro llev er is pressed
up : or down ;the last spee dstored is
increasedorr educed.
XTo adjustthe setspeed in 5mph incre-
ments (10k m/h increments): briefly press
the cruise control lever up :or down ;to
the pressure point.
Ever ytime the cruise control lever is pressed
up : or down ;the last speed stored is
increased or reduced.
iCruise control is not deactivated if you
depress the accelerator pedal. If you acceler-
ate to overtake, cruise control adjusts the
vehicle's speed to the last speed stored after
you have finished overtaking.
Deactivating cruise control
There are several ways to deactivate cruise con-
trol:
XBriefly press the cruise control lever forwards
=.
or
XBrake.
Cruise control is automatically deactivated if:
Ryou engage the electric parkin gbrake
Ryou are driving at less than 20 mph (30 km/ h)
RESP®intervenes or youdeactivate ESP®
Ryous hift the transmission to position Nwhile
driving
If cruis econtro lisdeactivated ,you will hear a
warning tone .You will see the Cruise Con‐
trolOffmessage in the multifunctio ndisplay
for approximately fiv eseconds.
iWhen yo uswitch off the engine ,the last
spee dstored is cleared.
DISTRONIC PLUS
General notes
DISTRONI CPLUSregulate sthe spee dand auto-
maticall yhelps youm aintain the distance to the
vehicl edetecte dinf ront. Vehicles ar edetected
with the ai dofthe rada rsensor system.
DISTRONI CPLUSb rakes automaticall ysothat
the set spee disnot exceeded. Chang
einto alower gear in good time on long
and stee pdownhil lgradients .Thisise specially
important if the vehicl eisladen .Byd oing so, you
will make us eofthe braking effect of the engine.
Thi srelieves the load on the brake system and
prevents the brakes fromo verheating and wear-
ing too quickly.
If DISTRONI CPLUSd etects thatt here isarisko f
ac ollision, yo uwillbew arned visuall yand
acoustically. DISTRONI CPLUSc anno tprevent a
collision withou tyou rintervention. An intermit-
tent warning tone will thens ound and the dis-
tance warning lamp will light up in the instru-
ment cluster .Brake immediatel yinorder to
increase the distance to the vehicl einfront or
take evasive action provided it is safe to do so.
DISTRONI CPLUSo perates in range between
0m ph (0 km/h )and 120 mph (20 0km/h).
Do not us eDISTRONI CPLUSw hile drivin gon
roads with stee pgradients.
As DISTRONI CPLUSt ransmits ra da
rw ave
s ,it
can resemble the rada rdetectors of the respon-
sibl eauthorities. Yo ucan refer to the relevant
chapte rinthe Operator' sManualifq uestions
ar ea sked abou tthis.
iUSA only: Thi sdeviceh asbeen approved by
the FCC as a"Vehi cularRadar System" .The
rada rsensor is intende dfor us einana uto-
motive rada rsystem only. Removal ,tamper-
ing ,ora ltering of the devic ewillv oida ny war-
ranties, and is not permitted by the FCC .Do
not tampe rwith, alter, or us einany non-
approved way.
Any unauthorized modification to thisd evice
could voi dthe user' sauthority to operate the
equipment.
iCanad aonly: Thi sdevicec omplies with
RSS-210 of Industry Canada. Operatio nis
subject to the following two conditions:
1. Thi sdevicem aynot cause harmfu linter-
ference ,and
2. Thi sdevicem usta ccep tany interference
received, including interferenc ethatm ay
cause undesired operatio nofthe device.
Removal ,tampering, or altering of the device
will voi dany warranties, and is not permitted.
Do not tampe rwith, alter, or us einany non-
approved way.
Any unauthorized modification to thisd evice
could voi dthe user' sauthority to operate the
e

quipment.
162Driving system s
Driving an dparking

Important safety notes
GWARNING
DISTRONI CPLUSd oes no treac tto:
Rpeople or animals
Rstationary obstacles on th eroad ,e.g.s top-
ped or parked vehicles
Roncomin gand crossing traffic
As aresult ,DISTR ONICPLUSm ay neither giv e
warning snorinterven einsuchs ituations.
Ther eisar iskofana ccident.
Always pay careful attention to th etraffic sit -
uation and be read ytob rake.
GWARNIN G
DISTRONI CPLUSc anno talways clearly iden -
tify other road user sand comple xtraffic sit -
uations.
In suc hcases, DISTRONI CPLUSm ay:
Rgiveanu nnecessary warning and then
brak ethe vehicl e
Rneither giv eawarning no rinterven e
Raccelerate or brak eunexpectedly
Ther eisar iskofana ccident.
Continue to driv ecarefully and be read yto
brake, in particular when warned to do so by
DISTRONI CPLUS.
GWARNIN G
DISTRONI CPLUSb rakes your vehicl ewithu p
to 50 %ofthe maximu mpossible deceleration.
If this braking force is insufficient, DISTRONIC
PLUS warns you visuall yand audibly.T here is
ar isk of an accident.
In such cases ,apply the brakes yourself and
try to take evasive action.
!If DISTRONIC PLUS or the HOLD function is
activated, the vehicl ebrakes automatically in
certain situations.
To prevent damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or other similar situations:
Rwhen towing the vehicle
Rin the car wash If you fail to adapt you
rdriving style ,DISTRONIC
PLUS can neither reduce the risk of accident nor
override the law sofphysics. DISTRONIC PLUS
cannot take into account the road ,traffic and
weather conditions. DISTRONIC PLUS is only an
aid .You are responsiblef or the distance to the
vehicl einfront, for vehicl espeed, for braking in
good time and for staying in you rlane.
Do not use DISTRONIC PLUS:
Rin road and traffic conditions which do not
allow you to maintain aconstant speede .g. in
heavy traffic or on winding roads
Ron slippery road surfaces. Braking or accel-
erating coul dcaus ethe drive wheels to lose
traction and the vehicl ecoul dthen skid
Rwhen there is poor visibility, e.g. due to fog,
heavy rain or snow
DISTRONIC PLUS may not detect narrow vehi-
cles driving in front, e.g. motorcycles, or vehi-
cles driving on adifferent line.
In particular, the detection of obstacles can be
impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is snow or heavy rain
Rthere is interference by other rada rsources
Rthere are strong rada rreflections, for exam-
ple ,inp arking gara ges
If DISTR
ONIC PLUS no longe rdetects avehicle
in front, DISTRONIC PLUS may unexpectedly
accelerate the vehicl etothe stored speed.
This speedm ay:
Rbe too high if you are driving in afilter lane or
an exit lane
Rbe so high in the right lane that you pas svehi-
cles driving on the left (left-hand drive coun-
tries)
Rbe so high in the left lane that you pas svehi-
cles driving on the right (right-hand drive
countries)
If there is achange of drivers, advise the new
drive rofthe speeds tored.
Driving systems163
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Cruise control lever
:Activatesorincreases speed
;Activate sorreduces speed
=Deactivates DISTRONICP LUS
?Activatesatthecurren tspeed/last stored
speed
ASet sas pecifie dminimum distance
Activating DISTRONIC PLUS
Activation conditions
In order to activat eDISTR ONICP LUS, th efol-
lowingc onditionsm ust be fulfilled:
Rthee nginem ust be started. It may tak eupto
two minute safter pullinga way before
DISTRONICP LUSisoperational.
Rthee lectric parking brak emust be released.
RESP®must be active, but no tintervening.
RActiv eParking Assist must no tbeactivated.
Rthet ransmission must be in position D.
Rthed river'sd oor must be closed when you
shiftf rom Pto Dor your seat belt must be
fastened.
Rth ef ront-pa ssenger door and rear doorsm ust
be closed.
Activating
XBriefl ypull th ecruise control leve rtow ards
you ?,u p: or down ;.
DISTRONICP LUSisselected.
XRemove your foo tfro mt heaccelerato rpedal.
Your vehicle adaptsi ts speedtothatoft he
vehicle in front, but only up to th edesired
store dspeed.
iIf you do no tfully release th eaccelerator
pedal, the DISTRONICPLUSSuspendedmes-
sage appearsint hemultifunction display. The
set distanc etoaslower-moving vehicle in frontw
ill then no tbemaintained. You will be
driving at th espeedy ou determine by the
positio noftheaccelerato rpedal.
You can also activat eDISTR ONICP LUSwhen
stationary. The lowests peedthatc an be set is
20 mph (30 km/h).
XBriefl ypull th ecruise control leve rtow ards
you ?,u p: or down ;.
DISTRONICP LUSisselected.
Activating at th ecurren tspeed/last
stored speed
GWARNING
If you call up th estoreds peeda nd it differs
from th ecurren tspeed, th evehicle acceler-
ate sord ecelerates. If you do no tknowt he
store dspeed, th evehicle coul daccelerate or
brak eunexpectedly. Thereisar iskofana cci-
dent.
Pay attentio ntotheroad and traffic condi-
tions before calling up th estoreds peed. If you
do no tknowt he store dspeed, store the
desired speeda gain.
XBrieflypull th ecruise control leve rtow ards
you ?.
XRemove your foo tfro mt heaccelerato rpedal.
DISTRONICP LUSisactivated. The first tim eit
is activated, th ecurren tspeediss tored. Oth-
erwise, it setst hevehicle cruise speedtot he
previously store dvalue.
Driving with DISTRONIC PLUS
Pulling awa yand driving
XIf you want to pull awa ywith DISTRONIC
PLUS: remove your foo tfro mt hebrak epedal.
XBriefl ypull th ecruise control leve rtow ards
you ?.
or
XAccelerateb riefly.
Your vehicle pulls away and adaptsi ts speed
to that of th evehicle in front. If no vehicle is
detected in front, your vehicle accelerate sto
th es et speed.
The vehicle can also pull away when it is facing
an unidentified obstacle or is driving on adiffer-
entl inefroma nother vehicle .The vehicle then
brakes automatically.
164Driving systems
Driving and parking

If there is no vehicle in front, DISTRONIC PLUS
operates in the same way as cruise control.
If DISTRONIC PLUS detects that the vehicle in
front has slowed down, it brakes yourvehicle.I n
this way ,the distance you have selected is main-
tained.
If DISTRONIC PLUS detects afaster-moving
vehicle in front, it increases the driving speed.
However, the vehicle is only accelerated up to
the speed you have stored.
Selecting the drive program
DISTRONIC PLUS supports asporty driving style
when you have selected the Sor S+ driving pro-
gram (
Ypage 144). Acceleration behind the
vehicle in front or to the set speed is then notice-
abl ym ore dynamic. If you have selected the Cor
E driving program, the vehicle accelerates more
gently. This setting is recommended in stop-
and-start traffic.
Changing lanes
If you change to the passing lane, DISTRONIC
PLUS supports you when:
Ryou are driving faster than 45 mph (70 km/h)
Ryou switch on the appropriate turn signal
RDISTRONIC PLUS does not detect adanger of
collision
If these conditions are fulfilled,y ourv ehicle is
accelerated. Acceleration wil lbeinterrupted if
changing lanes takes too long or if the distance
betwee nyourv ehicle and the vehicle in front
becomes too small.
iWhen you change lanes, DISTRONIC PLUS
monitors the left lane on left-hand-drive vehi-
cles or the right lane on right-hand-drive vehi-
cles.
Stopping
GWARNING
When leaving the vehicle,e ven if it is braked
only by DISTRONIC PLUS, it could roll awa yif:
Rthere is amalfunction in the system or in
the voltage supply.
RDISTRONIC PLUS has been deactivated
with the cruise control lever, e.g. by avehi-
cle occupant or from outsid ethe vehicle.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected.
Rthe accelerator pedalh as been depressed,
e.g. by avehicle occupant.
There is arisk of an accident.
If you wish to exit the vehicle,a lways turn off
DISTRONIC PLUS and secure the vehicle
against rolling away.
For further information on deactivating
DISTRONIC PLUS (
Ypage 167).
If DISTRONIC PLUS detects that the vehicle in
front is stopping, it brakes you rvehicle until it is
stationary.
Once you rvehicle is stationary,itr emains sta-
tionary and you do not need to depresst he
brake.
iAfter atime, the electric parking brake
secures the vehicle and relieves the service
brake.
iDepending on the specifiedm inimum dis-
tance, you rvehicle wil lcome to astandstill at
as ufficient distance behind the vehicle in
front. The specifiedm inimum distance is set
using the control on the cruise control lever.
When DISTRONIC PLUS is activated, the trans-
missioniss hifted automatically to position Pif:
Rthe driver's seat belt is not fastened and the
driver's door is open.
Rthe engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function.
The electric parking brake secures the vehicle
automatically if DISTRONIC PLUS is activated
when the vehicle is stationary and:
Ras ystem malfunction occurs.
Rthe powers upply is not sufficient.
If am alfunction occurs, the transmission may
also shift into position Pautomatically.
Setting aspeed
XPress the cruise control lever up :for a
highers peed or down ;for alowers peed.
XTo adjust the set speed in 1mph incre-
ments (1 km/h increments): brieflypress
Driving systems165
Driving and parking
Z