MERCEDES-BENZ CLA COUPE 2018 Owner's Manual

If you leave the engine or the auxiliary heatingrunning, make sure the exhaust pipe and area
around the vehicle are clear of snow. To
ensure an adequate supply of fresh air, open a
window on the side of the vehicle that is not
facing into the wind.
Have you rvehicle winter-proofed at aqualified
specialist workshop at the onset of winter.
Drive particularly carefully on slippery road sur-
faces. Avoid sudden acceleration, steering and
braking maneuvers. Do not use cruise control or Distance PilotD ISTRONIC.
If the vehicle threatens to skid or cannot be
stopped when moving at low speed:
XShift the transmission to position N.
XTry to bring the vehicle under control using
corrective steering.
The outsidet emperature indicator is not
designed to serve as an ice-warning device and is therefore unsuitable for that purpose.
Changes in the outsidet emperature are dis-
played after ashort delay.
Indicated temperature sjust above the freezing
point do not guarantee that the road surface is
free of ice. The road may still be icy, especially in
woodeda reasoronb ridges.
You shoul dpay speciala ttention to road condi-
tions when temperature sare around freezing
point.
For more information on driving with snow
chains, see (
Ypage 290).
For more information on driving with summer
tires, see (
Ypage 289).
Observe the notes in the "Winter operation" sec-
tion (
Ypage 289).
Drivin gsystems
Cruise control
General notes
Cruise control maintains aconstant road speed
for you .Itbrakes automatically in order to avoid
exceeding the set speed.Onl ong and steep
downhill gradients, especially if the vehicle is
laden, you must select alow gear in good time.
You need to shift manually using the steering
wheel paddle shifters beforehand. By doing so,
you willm ake use of the braking effect of the engine. This relieves the load on the brake sys-
tem and prevents the brakes from overheating
and wearing too quickly.
When the engine is running, you can use the
cruise control lever to limitt
he speed to any
speed between20m ph (30 km/h)and the tech-
nicallyp ermitted maximum speed of the vehicle.
Use cruise control only if road and traffic con-
ditions make it appropriate to maintain asteady
speed for aprolongedp eriod.
The speed indicated in the speedometer may
differ slightly from the speed stored.
Important safety notes
If you fail to adapt you rdriving style, cruise con-
trol can neither reduce the risk of an accident
nor override the lawsofp hysics. Cruise control
cannot take into account the road, traffic and
weather conditions. Cruise control is only an
aid.Y ou are responsible for the distance to the
vehicle in front, for vehicle speed,f or 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 maintain aconstant speed,e .g. in
heavy traffic or on winding roads
Ron slippery road surfaces .Braking or accel-
erating could cause the drive wheelstol ose
traction and the vehicle could then skid
Rin poor visibility, e.g. due to fog, heavy rain or
snow
If there is achange of drivers, advise the new
driver of the speed stored.
Cruise control lever
:Activates or increases speed
;Activates or reduces speed
Driving systems149
Driving and parking
Z

=Deactivatescruis econtrol
?Activate satthe current speed/las tstored
speed
When yo uactivate cruis econtrol, the stored
spee diss hown in the multifunctio ndisplay for
fiv es econds.
Activatio nconditions
To activate cruis econtrol, al lofthe following
activatio nconditions must be fulfilled:
Rthe electri cparkin gb rake must be released.
RESP®must be active, bu tnot intervening.
Rthe transmission must be in position h.
Storing, maintainingand callin gupa
speed
Storin gand maintainin gthe current
speed
Yo uc an stor ethe current spee difyouared riv-
ing faster than20m ph (30 km/h).
XAccelerate the vehicl etothe desired speed.
XBrieflypress the cruis econtro llev er up :or
down ;.
XRemov eyourfoo tfromt he accelerator pedal.
Cruise contro lisactivated .The vehicl eauto-
maticall ymaintains the stored speed.
iCruise contro lmaybe unabl etomaintain
the stored spee donuphillgradients .The
stored spee disresumed when the gradient
evens out. Cruise contro lmaintains the
stored spee dondownhil lgradients by auto-
maticall yapplyin gthe brakes.
Storin gthe curren tspeed or callin gupthe
las tstored speed
GWARNING
If yo ucallupt he stored spee dand it differs
fromt he current speed, the vehicl eacceler-
ate sord ecelerates. If yo udonot know the
stored speed, the vehicl ecould accelerate or
brake unexpectedly .There is ariskofana cci-
dent.
Pa ya ttentio ntothe roa dand trafficc ondi-
tions beforec alling up the stored speed. If you
do not know the stored speed, stor ethe
desired spee dagain .
XBriefl ypullt he cruis econtro llev er towards
you ?.
XRemov eyourfoo tfromt he accelerator pedal.
The first time cruis econtro lisactivated ,it
stores the current spee dorregulate sthe
spee doft he vehicl etothe previously stored
speed.
Settin gaspeed
Keepinm indt hatitm aytake abrief moment
unti lthe vehicl ehasaccelerated or braked to
the spee dset.
XTo adjustt he setspeed in 5mph incre-
ments (10k m/h increments): briefly press
the cruise control lever up :past the pres-
sure point for ahigher speed, or down ;for
al ower speed.
XTo adjust the set speed in 1mphincre-
ments (1 km/h increments): briefly press
the cruise control lever up :to the pressure
point for ahigher speed, or down ;for a
lower speed.
iCruise control is not deactivated if you
depress the accelerator pedal. For example, if
you accelerateb riefly to overtake, cruise con-
trol adjusts the vehicle's speed to the last
speed stored after you have finished overtak-
ing.
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:
Rthe vehicle is secured with the electric park-
ing brake
Ryou are driving at less than 20 mph (3 0km/ h)
RESP®intervenes or yo udeactivate ESP®
Ryous hift the transmission to position i
whil edriving
If cruis econtro lisdeactivated ,you will hear a
warning tone.Y ouwill see the Cruise Con‐
trolOffmessage in the multifunctio ndisplay
for approximately fiv eseconds.
150Driving system s
Driving an dparking

iWhen you switch off the engine, the last
speed stored is cleared.
Distance Pilot DISTRONIC
General notes
Distance Pilot DISTRONIC regulates the speed
and automatically helps you maintain the dis-
tanc etot he vehicle detected in front. Vehicles
are detected with the aid of the radar sensor
system. Distance Pilot DISTRONIC brakes auto-
matically to avoid exceedingt he set speed or to
maintain the designated distanc efrom the vehi-
cle in front.
If Distance Pilot DISTRONIC detect sthat there is
ar isk of acollision, you will be warned visually
and acoustically. Without your intervention, Dis-
tanc ePilot DISTRONIC cannot prevent acolli-
sion. An intermittent warning ton ewill then
sound and the distanc ewarning lamp will light
up in the instrument cluster. Brake immediately
in order to increase the distanc etothe vehicle in
frontort ake evasive action provided it is safe to
do so.
Distance Pilot DISTRONIC operates in the range
between 0mph (0 km/h) and 120 mph
(200 km/h).
Change into alower gear in good time on long
and steep downhill gradients .This is especially
importan tifthe vehicle is laden. By doing so, you
will make use of the braking effect of the engine.
This relieves the load on the brake system and
preventst he brakes from overheatin gand wear-
ing too quickly.
Do not use Distance Pilot DISTRONIC on roads
with steep gradients.
For Distance Pilot DISTRONIC to assist you
when driving, the radar sensor system must be
operational.
Sinc eDistance Pilot DISTRONIC transmits radar
waves, it can resemble the radar detectors of
the responsible authorities. You can refer to the
relevant chapter in the Operator' sManual if
questions are asked about this.
iUSA only: This device has been approved by
the FCC as a"Vehicular Radar System". The
radar sensor is intended for use in an auto-
motive radar system only. Removal, tamper-
ing, or altering of the device will void any war-
ranties, and is not permitted by the FCC. Do not tamper with, alter, or use in any non-
approved way.
An
yu nauthorized modification to this device
could void the user's authority to operate the
equipment.
iCanada only: This device complies wit h
RSS-210 of Industry Canada. Operation is
subject to the following two conditions:
1. This device may not cause interference,
and
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Removal, tampering, or altering of the device
will void any warranties, and is not permitted. Do not tamper with, alter, or use in any non-
approved way.
An yu nauthorized modification to this device
could void the user's authority to operate the
equipment.
Important safety notes
GWARNING
Distance Pilot DISTRONIC does not react to:
Rpeople or animals
Rstationary object sonthe road, e.g. stopped
or parked vehicles
Roncoming vehicles and crossingt raffic
As aresult, Distance Pilot DISTRONIC may
neither give warnings nor intervene in such
situations. There is arisk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake.
GWARNING
Distance Pilot DISTRONIC cannot always
clearly identif yother road users and complex
traffic situations.
In such cases, Distance Pilot DISTRONIC may:
Rgive an unnecessary warning and then
brake the vehicle
Rneither give awarning nor intervene
Raccelerateorb rake unexpectedly
There is arisk of an accident.
Driving systems151
Driving and parking
Z

Continue todrivecarefull yand beread yto
brake, especiall yifDistance Pilot DI STRONIC
warn syou.
GWAR NING
Distance Pilot DI STRONICb rakes your veh icle
wit hupt o50% of th emaximum possible
deceleration. Ifth is deceleratio nisnotsuff i-
cient ,Distance Pilot DI STRONICa lertsyou
wit hav isual and acoustic warning.Thereisa
ris kofana cciden t.
Ap ply theb rakes yourself inthese situations
and tr ytot akee vasive action.
!When Distance Pilot DI STRONICo rthe
HOLD function isactivated, th evehicle
brakes automaticall yincertain situations.
To avoid damag etotheveh icle,deactivate
Distance Pilot DI STRONICa nd theHOLD
function inthef ollowin gors imilar situations:
Rwhen to wingthev ehicle
Rinthec ar wash
If you fail to adapt your driving style, Distance
Pilot DI STRONICc an neither reduce th erisko f
an acc identnor overr idethel aws of physics.
Distance Pilot DISTRONICc annottak ei nto
accountr oad,weather or traff icconditions .Dis-
tance Pilot DI STRONICi sonlyana id.You are
responsible for thedistanc etotheveh icle in
front, for veh iclespeed, for braking ingood time
and for staying inyour lane.
Do no tuse Distance Pilot DI STRONIC:
Rinroad and traff icconditions whichdon ot
allow you to maintain aconstant speed,e.g.in
heavyt raffic or on winding roads
Ronslipp ery road surfaces .Brakin gora ccel-
erating could caus ethe driv ewheelstol ose
t
raction and th evehicle could then skid
Rwhen there ispoor vis ibility, e.g .due to fog,
heavyr ain or snow
Distance Pilot DI STRONICm ay notdetect nar-
row veh iclesdriving infront, e.g .motorcycles, or
veh iclesdriving on adifferent line.
In particular ,the detection of obstacle scan be
impaired if:
Rthere is dirt on thesensorsora nythingelse
covering th esensors
Rthere issnow or heavyr ain
Rthereisinterferenc ebyother radar sources
Rthere are stron gradar reflections ,for exam-
ple, in parking garages
If Distance Pilot DI STRONICn olonger detect sa
vehicle in front, itmay unexpect edlyaccelerate
to th espeeds tored.
This speedm ay:
Rbetooh igh ifyou are driving inaf ilter lane or
an exit lane
Rbeso high when driving inther ight-handl ane
that you overtake vehicle sintheleft-hand
lane
Rbe so high in th eleft lane that you pass vehi-
cle sd riving in th erigh tlane
If there isac hang eofd rivers,adviset henew
driv er of th espeeds tored.
Cruise control lever
:St ore sthe curren tspeedorah igher speed
;Storesthe curren tspeedoral ower speed
=Deactivates Distance Pilot DI STRONIC
?Store sthe curren tspeedorc alls up thelast
store dspeed
ASet sas pecifie dminimum distance
Activating Distance Pilot DISTRONIC
Activation conditions
!When Distance Pilot DI STRONICort he
HOLD function isactivated, th evehicle
brakes automaticall yincertain situations.
To avoid damag etothevehicle ,deactivate
Distance Pilot DI STRONICa nd theHOLD
function in th efollowin gors imilar situations:
Rwhen towing th evehicle
Rin th ecar wash
152Driving systems
Driving and parking

To activate Distance Pilot DISTRONIC, the fol-
lowing conditions must be fulfilled:
Rthe engine must be started. It may take up to
two minutes of driving before Distance Pilot
DISTRONIC is ready for use.
Rthe electric parking brake must be released.
RESP®must be active, but not intervening.
RParking Pilot must not be activated.
Rthe transmission must be in positionh.
Rthe driver's door must be closed when you
shift fromjtoh or your seat belt must be
fastened.
Rthe front-passenger door must be closed.
Rthe vehicle must not skid.
Activating
XBriefly pull the cruise control lever towards
you ?,u p: or down ;.
Distance Pilot DISTRONIC is activated.
XKeep the cruise control lever pressed up :or
down ;until the desired speed is set.
XRemove your foot from the accelerator pedal.
Your vehicle adapts its speed to that of the
vehicle in front,b ut only up to the desired
stored speed.
iIf you do not fully release the accelerator
pedal, the DistancePilotSuspendedmes-
sage appears in the multifunction display.T he
set distance to aslower-movingv ehicle in
front will then not be maintained. You will be
driving at the speed you determin ebythe
position of the accelerator pedal.
You can also activate Distance Pilot DISTRONIC
when stationary. The lowest speed that can be
set is 20 mph (3 0km/ h).
Drivin gwithD istance Pilo tDISTRONI C
Activating at th ecurrent speed/last
stored speed
GWARNING
If you cal lupthestored speed and it differs
from th ecurren tspeed, th evehicle acceler -
ates or decelerates. If you do no tknowt he
stored speed, th evehicle could accelerat eor
brake unexpectedly. There is ariskofana cci-
dent.
Pay attention to th eroada nd traffic condi-
tion sbefor ecallin gupt hestored speed. If you
do no tknowt he stored speed, stor ethe
desire dspeed again .
XBriefly pull th ecruise contro llever toward s
you ?.
XRemov eyour foot from th eaccelerator pedal.
The first time Distanc ePilotD ISTR ONIC is
activated, it stores th ecurren tspeed or reg -
ulates th espeed of th evehicle to th eprevi-
ousl ystore dspeed.
Pullin gawaya nd drivin g
XIf you wan ttopulla wa yw ithD istance
Pilo tDISTRONIC: removeyour foot from th e
brake pedal.
XBriefly pull th ecruise contro llever toward s
you ?.
or
XIf Distance Pilo tDISTRONI Cisactivated:
accelerat ebriefly.
Your vehicle pulls away and adapt sits speed
to that of th evehicle in front. If no vehicle is
detecte dinfront,your vehicle accelerates to
th es et speed.
The vehicle can also pull away when it is facin g
an unidentifie dobstacl eorisd rivingonad iffer-
en tlinef roma nother vehicle. The vehicle then
brake sautomatically. Be ready to brake at all
times .
If there is no vehicle in front, Distanc ePilot
DISTRONIC operates in th esam ew ay as cruise
control.
If Distanc ePilotD ISTR ONIC detects aslower -
movin gvehicle in front, it brake syour vehi
cle. In
this way, th edistanc eyou hav eselecte dismain-
tained.
If Distanc ePilotD ISTR ONIC detects afaster-
movin gvehicle in front, it increase sthe drivin g
speed. However, th evehicle is only accelerated
up to th espeed you hav estore d.
iDistanc ePilotD ISTR ONIC is deactivated
when you depress th ebrake ,excep twhen th e
vehicle is stationary.
Selecting th edrive program
Distanc ePilotD ISTR ONIC supports asport y
drivin gstyle when you selec tthe S+ drive pro -
gram (
Ypage 134) or th emanual drive program
(Ypage 136). Acceleration behin dthe vehicle in
fron tortot heset speed is then noticeably more
dynamic .Ifyou hav eselecte dthe E(Mercedes-
AM Gvehicles :C)d rive program, th evehicle
Driving systems153
Driving an dparking
Z

acceleratesmoreg ently. This settin gisrecom-
mended in stop-and-start traffic.
Changing lanes
If when driving on multilane roads you wish to
chang etotheovertakin glane ,Distance Pilot
DISTRONIC support syou if:
Ryou are driving faster than 45 mph (70 km/h)
RDistance Pilo tDISTRONICi smaintaining the
distance to avehicl einf ront
Ryous witch on the appropriate tur nsignal
RDistance Pilo tDISTRONICd oesn ot currently
detect adangerofc ollision
If these conditions ar efulfilled ,you rv ehicl eis
accelerated .Acceleratio nwillbei nterrupte dif
changing lanes take stoo long or if the distance
between your vehicl eand the vehicl einfront
become stoo small.
Stopping
If Distance Pilo tDISTRONICd etects thatt he
vehicl einfront is stopping, it brakes your vehicle
unti litiss tationary.
Once your vehicl eisstationary, it remains sta-
tionar yand yo udon ot nee dtodepress the
brake.
iAfter atime ,the electri cparkin gb rake
secures the vehicl eand relieves the service
brake.
iDepending on the specifie dminimu mdis-
tance ,you rvehicl ewillc ome to astandstil lat
as ufficient distance behind the vehicl ein
front. The specifie dminimu mdistance is set
using the contro lonthe cruis ec
o
ntro llev er.
When Distance Pilo tDISTRONICi sactivated,
the transmission is shifted automaticall yto
position jif:
Rthe driver's sea tbeltisn ot fastened and the
driver's door is open.
Rthe engine is switched off ,unless it is auto-
maticall yswitched off by the ECO start/stop
function.
The electri cparkin gb rake secures the vehicle
automaticall yifDistance Pilo tDISTRONICi s
activated when the vehicl eisstationar yand:
Ras ystem malfunctio noccurs.
Rthe powe rsuppl yisi nsufficient.
If am alfunctio noccurs, the transmission may
also shift to position jautomatically.
Settin gaspeed
Keepinm indt hatitm aytake abrief moment
unti lthe vehicl ehasaccelerated or braked to
the spee dset.
XPress the cruis econtro llev er up :for a
highe rspeed or down ;for alower speed.
XTo adjustt he setspeed in 1mph incre-
ments (1 km/hi ncrements): brieflypress
the cruis econtro llev er up :or down ;to
the pressure point.
The last stored spee dincreases or decreases
in 1m ph (1 km/h )increments.
XTo adjustt he setspeed in 5mph incre-
ments (10k m/h increments): briefly press
the cruise control lever up :or down ;
beyond the pressure point.
The last stored speed increases or decreases in 5m ph (10 km/h) increments.
iDistance Pilot DISTRONIC is not deactivated
if you depress the accelerator pedal. If you
acceleratetoo vertake, Distance Pilot
DISTRONIC adjusts the vehicle's speed to the
last speed stored after you have finished over- taking.
Setting aspecified minimum distance
You can set the specified minimum distanc efor
Distance Pilot DISTRONIC by varying the time
span between one and two seconds. With this
function you can set the minimum distanc ethat
Distance Pilot DISTRONIC maintains to the vehi-
cle in front, dependen tonvehicle speed. You
can see this distanc einthe multifunction dis-
play (
Ypage 161).
The specified minimum distanc ecan be
changed while Distance Pilot DISTRONIC is
switched on or off.
iMake sure that you maintain the minimum
distanc etothe vehicle in frontasr equired by
law. Adjust the distanc etothe vehicle in front
if necessary.
154Driving systems
Driving and parking

XTo increase:turn control=in direction ;.
Distance Pilo tDISTRONIC then maintains a
greate rdistance between your vehicl eand
the vehicl einfront.
XTo decrease: turn control=in direction :.
Distance Pilo tDISTRONIC then maintains a
shorter distance between your vehicl eand
the vehicl einfront.
Deactivating Distance Pilo tDISTRONIC
There are severa lwaystod eactivate Distance
Pilo tDISTRONIC:
XBriefly press the cruis econtroll ever for-
wards :.
or
XBrake, unless the vehicl eisstationary
XBriefly press the cruis econtroll ever for-
wards :.
or
XBrake, unless the vehicl eisstationary
Whe nyou deactivate Distance Pilo tDISTRONIC,
the Distance Pilot Off
message appears in
the multifunctio ndisplay for approximatelyf ive
seconds.
iThe last speed stored remains stored until
yo us witch off the engine. Distance Pilot DISTRONIC is not deactivate
difyoudepress
the accelerato rpedal.
Distance Pilo tDISTRONIC is automaticall ydeac-
tivated if:
Ryo ue ngage the electri cparking brake or if the
vehicl eisautomaticall ysecured with the elec-
tric parking brake
RESP®intervene soryoudeactivate ESP®
Rthe transmission is in position j,kori
Ryoup ullt he cruis econtroll ever toward syou
in order to pull away and the front-passenger
door or one of the reard oors is open
Rthe vehicl eisskidding
Ryous witch on Parking Pilot
If Distance Pilo tDISTRONIC is automatically
deactivated, yo uwillh earaw arning tone. The
Distance Pilot Off
message appears in the
multifunctio ndisplay for approximatelyf ives ec-
onds.
Distance Pilo tDISTRONIC is also automatically
deactivate dwheny ou activate DSR. The Ã
DSR symbo lappea rs in the multifunctio ndis-
play.
Distance Pilo tDISTRONICd isplaysin
the instrument cluster
Displays in the speedometer
Whe nDistance Pilo tDISTRONIC PLUSisa ctiva-
ted and ther eare no vehicles detectedinf ront,
one or two segments ;in the set speed range
light up.
If Distance Pilo tDISTRONIC detects avehicl ein
front, segments ;between speed of the vehi-
cle in front =and stored speed :light up.
iFor design reasons,t he speed displayed in
the speedometer mayd iffer slightlyf rom the
speed set for Distance Pilo tDISTRONIC.
Driving systems155
Driving an dparking
Z

Display when DistancePilot DISTRONIC is
deactivate d
In theAssistance men u(Ypage 184) of th eon-
boar dcom puter, you can select th eassistanc e
display.
:Vehicl einfront,ifd etecte d
;Distanc eind icator, curren tdistanc etothe
vehicl einfront
=Specified minimum distanc etothevehicl e
in front; adjustable
?Your vehicl e
XSelectthe Assistanc eGraphi cfunction
usin gthe on-boar dcom puter (Ypage 185).
Display when Distanc ePilot DISTRONIC is
activate d
You will initially see th estoreds peed fo rabout
fiv es econds when you activat eDistance Pilot
DISTRONIC.
:Vehicl einfront,ifd etecte d
;Specified minimum distanc etothevehicl e
in front; adjustable
=Your vehicl e
?DistancePilotD ISTR ONIC active (tex tonly
appears when th ecruise control lever is
actuated)
XSelec tthe Assistanc eGraphi cfunction
usin gthe on-boar dcom puter (Ypage 185).
Tips for drivin gwithD istanc ePilot
DISTRONIC
General notes
Pay particular attention in th efollowing traffic
situations:
RCornering, enterin gand exitin gabend: th e
abilit yofD istance PilotDISTR ONIC to detec t
vehicles during cornering is limited. Your vehi-
cle may brak eunexpectedly or late.
RDriving on adifferen tline: Distanc ePilot
DISTRONIC may no tdetec tvehicles whic hare
no td rivin gint hemiddle of their lane. The dis-
tance to th evehicl einf rontwill be to oshort .
ROther vehicles changin glanes: Distanc ePilot
DISTRONIC has no tdetecte dthe vehicl ecut-
ting in yet .The distanc etothisv ehicl ewill be
to os hort .
RNarrow vehicles: Distanc ePilotD ISTR ONIC
has no tyet detecte dthe vehicl einfronton
th ee dgeoft heroa dbecause of it snarrow
width. The distanc etothevehicl einfrontwill
be to oshort .
RObstacles and stationary vehicles: Distanc e
Pilo tDISTR ONIC doe snotbrak efor obstacles
or stationary vehicles. If ,for example, th e
detecte dvehicl eturns acorner and an obsta-
cle or stationary vehicl eisthenr evealed ,Dis-
tance Pilo tDISTR ONIC will no tbrak efor
them.
RDistanc ePilotD ISTR ONIC may mistakenly
detec tvehicles th at are crossin gyour lane. If
you activat eDistance PilotDISTR ONIC in th e
following situations, th evehicl ecould pull
away unintentionally:
-At traffic lights wit hcrossin gtraffic, fo r
example.
-Wit hav ehicl eahead on th eother side of an
intersection and th eHOLDf unction active .
In suc hsituations, brak eifnecessary. Distanc e
Pilo tDISTR ONIC will then be deactivated.
156Driving systems
Driving an dparking

HOLD function
General notes
The HOLD function can assist the driverint he
following situations:
Rwhen pulling away, especially on steep slopes
Rwhen maneuvering on steep slopes
Rwhen waiting in traffic
The vehicleisk ept stationary without the driver
having to depress the brake pedal.
The braking effect is cancele dand the HOLD
function deactivated when you depress the
accelerator pedaltop ulla way.
Important safety notes
GWARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
Rthere is amalfunction in the system or in
the voltag esupply.
Rthe HOLD function has been deactivated by
pressing the accelerator pedalort he brake
pedal, e.g. by avehicleo ccupant.
Rthe electrical system in the engine com-
partment, the battery or the fuse shave
been tampere dwith.
Rthe battery is disconnected
There is arisk of an accident.
If you wis htoexit the vehicle, alway sturn off
the HOLD function and secure the vehicle
against rolling away.
!When Distance Pilot DISTRONIC or the
HOLD function is activated, the vehicle
brakes automatically in certain situations.
To avoi ddamage to the vehicle, deactivate
Distance Pilot DISTRONIC and the HOLD
function in the following or similar situations:
Rwhen towing the vehicle
Rin the car wash
Deactivating the HOLD function (
Ypage1 57).
Activation conditions
You can activate the HOLD function if:
Rthe vehicleiss tationary
Rthe engine is running or if it has been auto-
matically switched off by the ECO start/stop
function
Rthe driver's door is closed or you rseat belti s
fastened
Rthe electric parking brake is released
RDistance Pilot DISTRONIC is deactivated
Rthe transmission is in position h,kori
on vehicles with automatic transmission
Activating the HOLD function
XMake sure that the activation conditions are
met.
XDepress the brake pedal.
XQuickly depress the brake pedalf urther
until :appears in the multifunction display.
The HOLD function is activated. You can
release the brake pedal.
iIf depressing the brake pedalt he first time
does not activate the HOLD function, wait
briefly and then try again.
Deactivatin gthe HOLD function
The HOLD function is deactivated automatically
if:
Ryou accelerate. On vehicles with automatic
transmission: only when the transmission is in
position hork.
Rthe transmission is in position jon vehicles
with automatic transmission.
Ryou depress the brake pedala gain withacer-
tain amount of pressure until :disappears
from the multifunction display.
Ryou activate Distance Pilot DISTRONIC.
Ryou secure the vehicleu sing the electric park-
ing brake.
Driving systems157
Driving and parking
Z

iAfteratime ,the electri cparking brake
secures the vehicl eand relieves the service
brake.
Whe nthe HOLD functio nisa ctivated,t he trans-
mission is automaticall yshifted to position j
if:
Rthe driver's sea tbeltisn ot fasteneda nd the
driver's door is open.
Rthe engine is switched off, unless it is auto-
maticall yswitched off by the ECO start/stop
function.
The electri cparking brake secures the vehicle
automaticall yifthe HOLD functio nisa ctivated
when the vehicl eisstationar yand:
Ras ystem malfunctio noccurs.
Rthe powe rsuppl yisi nsufficient.
Start-off Assist (except Mercedes-
AMGvehicles)
Important safety notes
GWARNING
If yo uusestart-off assist, individual wheels
mays tart to spi nand the vehicl emayskid. If
ESP
®is deactivated,t hereisag reaterdanger
of skidding and having an accident. Make sure
thatnop ersons or obstacle sarein the vicinity
of the vehicle.
Start-off assist enables optimu macceleration
from astandstill .For this, asuitabl yhigh-grip
roads urface is required ,along with the tire sand
vehicl ebeing in prope roperating condition.
Do not activate start-off assist on public roads.
Observ ethe safety notes on driving safety sys-
tems (
Ypage 61).
Be sure to rea dthe safety notes and information
on ESP
®(Ypage 64).
Activatin gstart-off assist
XDeactivate ESP®(Ypage 185).
XTurn the steering whee ltothe straight-ahead
position.
XDepres sthe brake peda lhardw ithy ourleft
foo tand kee pitdepressed.
XShift the transmission to position D.
XUse the DYNAMIC SELECTb utton to select
the Sdrive program(Ypage 128).
XQuickly depress the accelerator peda lfully.
XTake your foo toff the brake, bu tkeept he
accelerator peda ldep ressed.
The vehicl epulls away at maximu macceler-
ation.
iActivate ESP®as soo nasthe acceleration
proces shasended .ESP®will otherwise not
be able to stabilize the vehicl eifthe vehicle
starts to skidoraw heelstarts to spin.
Canceling start-off assist
XRemove your foo tfrom the accelerator pedal.
XReactivate ESP®.
RAC ESTART (Mercedes-AM Gvehi-
cles)
Important safety notes
iRAC ESTARTm ustn ot be used on normal
roads. RAC ESTARTm usto nlybea ctivated
and used on dedicate droadc ircuits, outside
of public roadu se.
iRAC ESTARTiso nlyavailable in
Mercedes‑AM Gvehicles.
GWARNING
If yo uuseRAC ESTART, individual tire smay
start to spi nand the vehicl ecould skid.
Depending on the selecte dESP
®mode, there
is an increased ris kofskidding and having an
accident. Make sure thatnop ersons, animals
or obstacle sarewithinr ange of the vehicle.
RAC ESTARTe nables optima lacceleratio nfrom
as tanding start. For this, asuitabl yhigh-grip
roads urface is required and the vehicl eand tires
must be in goo dworking order.
iObserv ethe safety notes on driving safety
system s(Ypage 61).
Be sure to rea dthe safety notes and informa-
tio nonE SP
®(Ypage 64).
158Driving systems
Driving an dparking