#
T
To switc
o switc h on t
h on the v
he vehicle:
ehicle: press button 1
twice.
Indicator and warning lamps light up on the
inst rument clus ter.
The vehicle is switched o. again if one of thefo l-
lowing conditions is met:
R you do not start theve hicle within 15 minutes
and the transmission is in position jorthe
electric parking brake is applied.
R you press button 1once. S
S t tar
ar ting t
ting t he v
he vehicle
ehicle S
S
t
tar
ar ting t
ting t he v
he vehicle wit
ehicle wit h t
h the st
he st ar
art/st
t/st op butt
op butt on
on &
D
DAN
AN GER
GER Risk of fatal injuries due to
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Breathing in
th ese exhaust gases is hazardous tohealth
and results in poisoning. #
Never lea vethe engine and, if present,
th e stationary heater, running in an enclosed space without su1cient
venti-
lation. &
W
WARNI NG
ARNI NGRisk of /re due to0ammable
material in the engine compartment or the
ex haust system
Flammable materials may ignite. #
Therefore, check regula rly th at there are
no 0ammable materials in the engine
compartment or on theex haust system. R
R
eq
eq uir
uir ements:
ements:
R theke y is in theve hicle and is recognised. #
ShiT the transmission toposition jori. #
Depress the brake pedal and press button 1
once. #
Ifth eve hicle does not start: switch o. non-
essential consumers and press but ton1
once. #
Ifth eve hicle still does not start and thePlace
the key in the marked space See Owner's
Manual display message appears on the
inst rument displa y: starttheve hicle with the ke
y in the mar ked space (emer gency ope ra-
tion mode) (/ page 181).
% You can switch o. theve hicle while driving. To
do this, press button 1for about thre e sec-
onds or press button 1thre e times within
th re e seconds. Be sure toobser vethe saf ety
no tes conce rning this under "Driving tips"
(/ page 185).
Obser veany information rega rding display mes-
sages that may be displ ayed on the inst rument
displa y.
S
S t tar
ar ting t
ting t he v
he vehicle wit
ehicle wit h t
h the ke
he key in t
y in t hestow
he st owage
age
com
com par
partment (emerg
tment (emerg ency oper
ency operation mode)
ation mode)
If th eve hicle does not start and thePlace the
key in the marked space See Owner's Manual
message appears in the inst rument displa y,you
can start theve hicle in emer gency ope ration
mode. Driving and parking
181 181
#
Make sure that mar ked space 2is em pty. #
Remo vekey1 from theke yring. #
Place key1 in mar ked space 2.
The vehicle will start aTer a short time.
If yo ure mo vekey1 from mar ked space 2,
th eve hicle can still be driven. For fur ther
engine starts ho wever,key1 must be loca-
te d in mar ked space 2during the entire jour-
ne y. #
Have key1 checked at a quali/ed specialist
wo rkshop. If t
If t he v
he v ehicle does no
ehicle does no t st
t start:
art: #
Place key1 in mar ked space 2and lea veit
th ere. #
Depress the brake pedal and start theve hicle
using the start/s top button.
% You can switch on the po wer supply or the
ve hicle with the start/s top button.
Obser veany information rega rding display mes-
sages that can be displ ayed on the inst rument
displa y. S
S
t
tar
ar ting t
ting t he v
he vehicle via R
ehicle via R emot
emote Online Ser
e Online Ser vices
vices Cooling or heating t
Cooling or heating t
he v
he v ehicle int
ehicle int er
erior bef
ior bef ore
ore
st
st ar
ar ting t
ting t he jour
he jour ney
ney
Ensu rethefo llowing before starting the engine:
R The legal stipulations in the area where your
ve hicle is par ked allow engine starting via
smartphone.
R It is safe tostart and runth e engine where
yo ur vehicle is par ked.
R The fuel tank is su1cient lyfull.
R The star ter battery is su1ciently charge d. Char
Char ging t
ging t he st
he start
arter batt
er batt er
ery bef
y bef or
ore st
e st ar
arting t
ting t he
he
jour
jour ney
ney
Yo u can receive a message on your smartphone
when the state of charge ofthe star ter battery is
lo w. You can then start theve hicle with the smart-
phone tocharge the batter y.The vehicle is auto-
matically switched o. aTer ten minutes.
Ensure thefo llowing before starting the engine:
R The legal stipulations in the area where your
ve hicle is par ked allow engine starting via
smartphone.
R It is safe tostart and runth e engine where
yo ur vehicle is par ked.
R The fuel tank is su1cient lyfull.
St
St ar
arting t
ting t he v
he vehicle (R
ehicle (R emot
emote Online)
e Online) &
W WARNING ARNING Risk of crushing or ent rapment
due tounintentional starting of the engine
Limbs could be crushed or trapped if the
engine is star ted unintentionally during service
or maintenance work. 182
182
Driving and parking
EC
EC
O st
O st ar
art/st
t/st op function
op function EC
EC
O st
O st ar
art/st
t/st op function
op function
% Depending on the engine, the ECO start/s top
function is not available in all drive prog rams.
Obser vethe status display in the inst rument
display forth is.
% Plug-in h
Plug-in h ybr
ybrid:
id:This function is not available.
The engine is switched o. automatically in thefo l-
lowing situations if all vehicle conditions for an
automatic engine stop are met:
R You brake theve hicle toa standstill in trans-
mission position hori.
R V
V ehicles wit
ehicles with a 48 V on-boar h a 48 V on-boar d electr
d electrical sy
ical sys-
s-
t
t em:
em: You depress the brake pedal when tr avel-
ling at a low speed.
If th e system has de tected one of thefo llowing
situations, the engine will not stop:
R You stop at a stop sign and there is no vehicle
in front of you.
R The vehicle that stopped in front of you starts
up again. R
You manoeuvre, turn the steering wheel
sharply or engage reve rsege ar.
% Ifth e system de tects an intelligent stop inhibi-
to r,fo rex ample, a stop sign, the engine will
not stop.
If yo u activate the HOLD function or engage
th e park position j,the engine can be
switched o. in spite of an intelligent stop
inhibitor.
The engine restarts au tomatically in thefo llowing
cases:
R You engage transmission position hork.
R You depress the accelerator pedal.
R The vehicle requ ires an automatic engine
start.
R Youre lease the brake pedal.
R V
V ehicles wit ehicles wit h a 48 V on-boar
h a 48 V on-boar d electr
d electrical sy
ical sys-
s-
t
t em:
em:
- Youre lease the brake pedal on a downhill
gr adient and theve hicle does not roll.
- The vehicle rolls on a downhill gradient and
does not automatically enter glide mode at
20 km/h. ECO start/stop function symbols in
the inst ru-
ment displa y:
R The symbol è(gre en) appears when the
ve hicle is at a standstill: The engine was
switched o. bythe ECO start/s top function.
R The symbol ç(yellow) appears when the
ve hicle is at a standstill: Not all vehicle condi-
tions for an engine stop ha vebeen met.
R Neither the symbol ènorç appears
when theve hicle is at a standstill: An intelli-
ge nt stop inhibitor was de tected, e.g. a stop
sign.
R The symbol sappears: The ECO start/
stop function is deactivated or there is a mal-
function.
If th e engine was switched o. bythe ECO start/
stop function and you lea vetheve hicle, a warning
to ne sounds and the engine is not restar ted. In
addition, thefo llowing display message appears in
th e inst rument displa y:
Vehicle is operational Switch off ignition before
exiting Driving and parking
191 191
If
yo u do not switch o. theve hicle, it is automati-
cally switched o. aTer thre e minutes.
Deactiv
Deactiv ating or activ
ating or activ ating t
ating the EC
he ECO st
O star
art/st
t/st op
op
function
function #
Press button 1.
If indicator lamp 2lights up, the ECO start/
stop function is activated. %
Depending on the model and theve hicle
equipment, the button may also be located at
a di.erent position in the centre console. EC
EC
O displa
O displa y function
y function The ECO display summarises
your driving charac-
te ristics from the start of the journey toits com-
pletion and assists you in achieving the most eco-
nomical driving style.
Yo u can in0uence consum ption bydoing thefo l-
lowing:
R driving with particular care.
R following thege arshiT recommendations. The lettering in
the segment will light up brightl y,
th e outer edge will light up and the segment will
/ll up when thefo llowing driving style is adop ted:
R 1 Steady speed
R 2 Gentle deceleration and rolling
R 3 Moderate acceleration
The lettering in the segment will be grey ,th e outer
edge will be dark and the segment will em pty
when thefo llowing driving style is adop ted:
R 1 Fluctuations in speed
R 2 Heavy braking
R 3 Sporty acceleration
The ECO display will show you when you ha ve
driven economicall y:
R The thre e segments will /ll up comple tely at
th e same time
R The edges around all thre e segments will light
up
The additional range achie ved as a result of your
driving style in comparison with a driver with a
ve ry sporty driving st yle will be shown in the192 192
Driving and parking
cent
reof display 4. Therange displa yed does
not indicate a /xed reduction in consum ption. EC
EC
O Assis
O Assist function (v t function (v ehicles wit
ehicles with 48 V on-board
h 48 V on-board
electr
electr ical syst
ical syst em)
em) Fo
r plug-in hybrids, no tethe ECO Assist informa-
tion (/ page 196).
ECO Assist anal yses data forth eve hicle's expec-
te dro ute. This allo ws the system tooptimally
adjust the driving style forth ero ute ahead, sa ve
fuel and recuperate.
ECO Assist is displa yed on theAssistance
menu(/ page 300). 1
Event ahead
2 Distance display forth eev ent ahead
3 "Foot o. the accelerator" prom pt Displa
yable route events 1 The segments of distance display
2show the
distance totheev ent ahead as follo ws:
R Afew segments light up: theev ent ahead is
near.
R Many segments light up: theev ent ahead is
fur ther awa y.
When theve hicle nears theeve nt, ECO Assist will
calculate the optimal speed for maximum fuel
economy and recuperative energy based on the
distance, speed and gradient. The Foot off the
accelerator3 message appears in the inst ru-
ment displa y.The /rst segments in front of the
ve hicle will turn green. The remaining segments
will initially st aywhite. If youta ke your foot o. the
accelerator pedal in good time, there maining seg-
ments on the display will successively turn green
until theev ent shown is reached. The driv etra in
will be set for maximum fuel econom y.Re cupera-
tion will charge the batter y.Re cuperation will be
adap tedto the selected drive prog ram.
The event will be shown for a short time aTer it
has been passed. If there is no response tothe
Foot off the accelerator prompt,th e segments
will remain white. Driving and parking
193
193
If
th eev ent in volves a vehicle in front, all seg-
ments will immediately turn green once there is a
re sponse totheFoot off the accelerator prompt.
Fo r active ECO Assist in drive prog ram ;,
symbol 3will appear on the inst rument display
and on the head-up display beside transmission
position h. Symbol 3will also appear when the
assis tant display is not selected.
If th e system does not inter vene during theev ent
ahead, no thing will be displa yed. The system will
be passive.
ECO Assist is active only in drive prog rams ;
and A.
Syst Syst em limits
em limits
ECO Assist can function even more precisely if
th ero ute is adhered towhen route guidance is
active. The basic function is also available without
active route guidance. Not all information and
tra1c situations can be fore seen. The quality
depends on the map data.
ECO Assist is only an aid. The driver is responsible
fo rke eping a safe distance from theve hicle in
front, forve hicle speed and for braking in good
time. The driver must be ready tobrake at all times, ir
respecti veof whe ther the system inter-
ve nes.
The system may be impai red or may not function
in thefo llowing situations:
R If visibility is poor, e.g. due toinsu1cient illu-
mination of thero ad, highly variable shade
conditions, rain, sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming tra1c,
direct sunlight or re0ections.
R Ifth ere is dirt on the windscreen in the area of
th e multifunction camera or the camera is
misted up, damaged or obscured.
R Ifro ad signs are hard todetect, e.g. due to
dirt, snow or insu1cient lighting, or because
th ey are obscured.
R Ifth e information on the navigation system's
digital map is incor rect or out of date.
R If signs are ambiguous, e.g. road signs in road-
wo rks or in adjacent lanes. R R
eg
eg ener
ener ativ
ative br
e br ak
ake syst
e syst em (plug-in h
em (plug-in h ybr
ybrid)
id) F
F
unction of t
unction of t he r
he recuper
ecuper ativ
ative br
e br ak
ake syst
e syst em
em
Depending on the selected recuperation le vel,the
electric mo tor is operated as an alternator when
in ove rrun mode and during braking in order to
ch arge the high-voltage battery while driving. As
soon as youta ke your foot o. the accelerator
pedal when theve hicle is in motion and in trans-
mission position h,recuperation in overrun
mode is initiated.
The higher there cuperation, the more sharply the
ve hicle is braked when coasting and the more
electrical energy is fed into the high-voltage bat-
te ry.
The deceleration in overrun mode may not be suf-
fi cient depending on the driving conditions.
Decelerating toa standstill is not possible. Also
brake with the service brake if necessar y.Alw ays
adapt your speed tothe driving conditions and
ke ep a su1cient distance.
The recuperative brake system has thefo llowing
ch aracteristics:
R supports braking with elect ronically cont rolled
brake forc e boosting 194 194
Driving and parking
The Instrument Display sh
ows cur rently set recu-
peration le vel1, forex ample, hÃ. Eco Assis
Eco Assis
t function (plug-in h
t function (plug-in h ybr
ybr id)
id) %
The following function is countr y-dependent
and available only in conjunction with an inte-
gr ated hard drive navigation system.
ECO Assist is active only in drive prog rams A,
Î, Ïand;, and only in transmission
positions horhÃ. Perm anent manual gear-
shiTing pmust be switched o. (/ page 205).
ECO Assist anal yses data forth eve hicle's expec-
te dro ute. This allo ws the system tooptimally
adjust the driving style forth ero ute ahead, sa ve
fuel and recuperate.
ECO Assist is displa yed on theAssistance
menu(/ page 300). 1
Event ahead, e.g. roundabout
2 Distance display forth eev ent ahead
3 "Foot o. the accelerator" prom pt Displa
yable pr evious events 1 The
following events 1can be de tected and dis-
pla yedfo rth ero ute section ahead:
R Vehicle in front
R Speed limit
R Downhill and uphill gradients
R Junctions and roundabouts
R Bends
The segments of dis tance display 2show the
distance totheeve nt ahead as follo ws:
R Afew segments light up: theeve nt ahead is
near.
R Many segments light up: theev ent ahead is
fur ther awa y.
If ECO Assist is acti ve,th e "Foot o. the accelera-
to r" symbol 3will appear on the inst rument dis-
play and on the head-up display beside the trans-
mission position displa y.
When theve hicle nears an event, ECO Assist will
calculate the optimal speed for minimal energy
consum ption based on the distance, speed and
gr adient. The "Foot o. the accelerator" symbol 3
will appear on the inst rument displa y. 196
196
Driving and parking
If
yo uta ke your foot o. the accelerator pedal in
good time, there maining segments on the display
will successively turn green until theeve nt sh own
is reached. The driv etra in will be set for minimal
energy consum ption. The vehicle will recuperate
autonomously and thus charge the batter y.
% You can also manually increase or reduce the
re cuperation in drive prog ram Î. Ho wever,
ECO Assist is available only in thehÃ
setting (/ page 195).
If th ere is no response tothe "Foot o. the accel-
erator" prom pt3 ,th e segments will remain
white.
The event will be shown for a short time aTer it
has been passed.
If th eev ent in volves a vehicle in front, the symbol
will be shown in green as soon as there is a
re sponse to"Foot o. the accelerator" prom pt3 .
If th e system does not inter vene during theev ent
ahead, no thing will be displa yed. The system will
be passive. Syst
Syst em limits em limits
ECO Assist can function even more precisely if
th ero ute is adhered towhen route guidance is
active. The basic function is also available without
active route guidance. Not all information and
tra1c situations can be fore seen. The quality
depends on the map data.
ECO Assist is only an aid. The driver is responsible
fo rke eping a safe distance from theve hicle in
front, forve hicle speed and for braking in good
time. The driver must be ready tobrake at all
times, ir respecti veof whe ther the system inter-
ve nes.
The system may be impai red or may not function
in thefo llowing situations:
R If visibility is poor, e.g. due toinsu1cient illu-
mination of thero ad, highly variable shade
conditions, rain, sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming tra1c,
direct sunlight or re0ections.
R Ifth ere is dirt on the windscreen in the area of
th e multifunction camera or the camera is
misted up, damaged or obscured. R
Ifro ad signs are hard todetect, e.g. due to
dirt, snow or insu1cient lighting, or because
th ey are obscured.
R Ifth e information on the navigation system's
digital map is incor rect, insu1cient or out of
date.
R If signs are ambiguous, e.g. road signs in road-
wo rks or in adjacent lanes. F F
unction of t
unction of t he r
he rout
oute-based oper
e-based oper ating-mode s
ating-mode strtrat-
at-
egy (plug-in h
egy (plug-in h ybr
ybrid)
id) %
The following function is countr y-dependent
and available only in conjunction with an inte-
gr ated navigation system.
The route-based operating-mode strategy is active
only in drive prog rams A and;. When
ro ute guidance is active, data on the planned
ro ute is anal ysed. This function can be activated
and deactivated in the multimedia system
(/ page 322).
If th e function is active, data on the fur ther course
of thero ute is evaluated. This includes, e.g. road
type, speed limi tations and altitude data. Driving and parking
197
197