
A di
fferent number of segments 2will appear
in front of theve hicle depending on the dis tance
to theeve nt ahead:
R Few segments: theeve nt ahead is nea r.
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 3messageappears on
th e multifunction displa y.The firs t segments in
front of theve hicle will become green. The
re maining segments will initially stay white. If
th e driver lifts off the accelerator pedal in good
time, there maining segments on the display will
turn green until theeve nt shown is reached. The
driv etra in will be set for maximum fuel econom y.
Re cuperation will charge the batter y.Re cupera‐
tion will be adap tedto the selected drive pro‐
gram.
The event will be shown for a short time af ter it
has been passed. If there is no response tothe Foot off the accelerator
prompt,th e segments
will remain white.
If th eeve nt in volves a vehicle ahead, all seg‐
ments will immediately turn green once there is
a re sponse 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.
If th e sy stem does not inter vene du ring the
eve nt ahead, no thing will be displa yed. The sys‐
te m is passive.
ECO Assist is active only in drive programs ;
and A.
Sy stem limitations
ECO Assist can function more precisely if the
ro ute is main tained when route guidance is
active. The basic function is also available with‐
out active route guidance. Notall information
and traf fic situations can be fore seen. The qual‐
ity depends on the map data. ECO Assist is only an aid. The driver is
responsi‐
ble forke eping a safe dis tance totheve hicle in
front, forve hicle speed and for braking in good
time. The driver must be ready tobrake at all
times ir respective of whe ther the sy stem inter‐
ve nes.
The sy stem may be impaired or may not function
in thefo llowing situations:
R If visibility is poor (e.g. due toinsuf ficient illu‐
mination of thero ad, high lyvariable shade
conditions, rain, sno w,fog or heavy spr ay).
R Ifth ere is glare (e.g. from oncoming traf fic,
di re ct sunlight or reflections).
R Ifth ere is dirt on the windscreen in the vicin‐
ity of the multifunction camera or the camera
is mis ted up, damaged or obscured.
R Ifth e tra ffic signs are hard todiscern (e.g.
due todirt or snow or insuf ficient lighting, or
because they are obscured).
R Ifth e information on the navigation sy stem's
digital map is incor rect or out of da te.
R Ifth e signs are ambiguous (e.g. traf fic signs
in roadwor ksor in adjacent lanes). 202
Driving and parking

%
Standby mode is automatically deactivated
when the ignition is switched on.
Ac tivating/deactivating standby mode (park‐
ing up theve hicle)
Re quirements:
R The engine is switched off.
Multimedia sy stem:
4 © 5
Settings 5
Fahrzeug (Vehicle) #
Switch Standby mode on or off.
When you activate the function, a prom pt
appears. #
Select Yes.
St andby mode is activated. Driving and driving saf
ety sy stems Driving sy
stems and your responsibility Yo
ur vehicle is equipped with driving sy stems
which assist you in driving, parking and manoeu‐
vring theve hicle. The driving sy stems are aids
and do not relie ve you of your responsibility per‐
ta ining toroad traf fic la w.Pay attention tothe traf
fic conditions at all times and inter vene
when necessa ry. Be aware of the limitations
re ga rding the safe use of these sy stems. Information about
radar senso rs Some driving and driving sa
fety sy stems use
ra dar sensors tomonitor the area in front of,
behind or next totheve hicle (depending on the
ve hicle's equipment).
Depending on theve hicle's equipment, thera dar
sensors are integrated behind the bumpers
and/or behind the Mercedes star. Keep these
parts free of dirt, ice and slush (/ page545).
The se nsors mu stnot be co vered, forex ample
by cycle rack s, overhanging loads, sticke rs,fo il
or foils toprotect against stone chipping. In the
eve nt of dama getothe bumpers or radiator
grille, or following a collision impacting the
bumpers or radiator grille, ha vethe function of
th era dar sensors checked at a qualified special‐
ist workshop. The driving sy stems and driving
saf ety sy stems may no longer function proper ly
in such cases. Overview of driving sy
stems and driving
saf ety sy stems In
this section, you will find information about
th efo llowing driving sy stems and driving saf ety
sy stems:
R 360° Camera (/ page 289)
R ABS (Anti-lock Braking System)
(/ page 229)
R Active Dis tance Assi stDISTRONIC
(/ page 247)
R Adaptive Brake Lights (/ page241)
R AIRMATIC (/ page 262)
R Active Brake Assi st (/ page 235)
R Active Lane Keeping Assist (/ page 309)
R ATTENTION ASSIST (/ page 300)
R BAS (Brak eAssist System) (/ page 229)
R Hill Start Assist (/ page 259)
R E-AC TIVE BODY CONTROL (/ page 269)
R EBD ( Electronic Brakeforc eDistribution)
(/ page 235) 228
Driving and parking

Ac
tivating or deactivating ESP ®
(Electronic
St ability Prog ram) (vehicles without Off-road
pac kage) Multimedia sy
stem:
4 © 5
Settings 5
Quick access
% ESP®
can only be activated/deactivated
using quick access when at least one other
function is available in quick access. ESP ®
can otherwise be found in theAssistance
menu. #
Select ESP.
A prom ptappears. #
Select Onorå Off.
ESP ®
is deactivated if theå ESP®
OFF warn‐
ing lamp lights up continuously in the instrument
clus ter.
Obser vethe information on warning lamps and
display messages which may be shown in the
instrument clus ter. Ac
tivating/deactivating ESP ®
(Electronic Sta‐
bility Prog ram) (vehicles with Off-road pack‐
age or E- Active Body Control) #
Pull rock er switch 1.
ESP ®
is deactivated if theå ESP®
OFF warn‐
ing lamp lights up continuously in the instrument
clus ter. Obser
vethe information on warning lamps and
display messages which may be shown in the
instrument clus ter. Fu
nction of ESP ®
Crosswind Assist ESP
®
Crosswind Assist de tects sudden gu sts of
side wind and helps the driver tokeep theve hi‐
cle in the lane:
R ESP ®
Crosswind Assist is active at vehicle
speeds between 80 km/h and 200 km/h
when driving stra ight ahead or cornering
slight ly.
R The vehicle is stabilised bymeans of individ‐
ual brake application on one side. Fu
nction of ESP ®
trailer stabilisation &
WARNING Risk of accident in poor road
and weather conditions
In poor road and weather conditions, the
trailer stabilisation cannot pr event lur ching of
th eve hicle/trailer combination. Trailers with 234
Driving and parking

R
Assi stance thro ugh po wer-assis tedsteering if
it de tects a swerving manoeuvre.
R Activation byan abrupt steering mo vement
during a swerving manoeuvre.
R Assis tance du ring swerving and stra ightening
of theve hicle.
R Reaction from a speed of appr oximately
20 km/h up toa speed of appr oximately
70 km/h.
Yo u can pr eventthe assis tance at any time by
actively steering.
Cornering function (only vehicles with Driv‐
ing Assistance Package)
If a danger of collision from an oncoming vehicle
is de tected when turning across an oncoming
lane, au tonomous braking can be initia ted at
speeds below 15km/h be fore you ha veleft the
lane in which you are driving. &
WARNING Risk of an accident despi te
Evasive Steering Assist
Evasive Steering Assist cann otalw ays clearly
identify objects and complex traf fic situa‐
tions.
In addition, thesteering support of Evasive
St eering Assist is general lynot su fficient to
avo id a collision.
In such cases Evasive Steering Assist can:
R give an unnecessary warning or pr ovide
assis tance
R not gi veawa rning or not pr ovide assis‐
ta nce #
Alw ays pay careful attention tothe traf‐
fi c situation; do not rely on Ev asive
St eering Assist alone. #
Beready tobrake and take evasive
action, if necessar y. #
Preve ntthe assis tance byactively
st eering in non-critical driving situa‐
tions. #
Drive at an appropriate speed if pedes‐
trians are close tothe path of your vehi‐
cle. Sy
stem limitations
Fu ll sy stem per form ance is not available for a
fe w seconds af ter switching on the ignition or
af te r driving off.
The sy stem may be impaired or may not function
in thefo llowing situations:
R In sno w,rain, fog, heavy spr ay, if there is
gl are, in direct sunlight or in greatlyvarying
light conditions.
R Ifth e sensors are dirty, mis ted up, damaged
or co vered.
R Ifth e sensors are impaired due tointer fer‐
ence from other radar sources, e.g. strong
ra dar reflections in multi-s torey car par ks.
R If a loss of tyre pressure or a defective tyre
has been de tected and displ ayed.
R If DSR is activated.
R In complex tra ffic situations where objects
cannot alw ays be clear lyidentified. 240
Driving and pa rking

Changing
the tar get speed #
Toincrease or decrease the tar get speed:
press rocker switch 1uptothe point of
re sis tance for a higher target speed and
down for a lo werta rget speed.
The selected target speed increases or
decreases by1 km/h and appears with the
DSR symbol in the multifunction displa y.%
The target speed alw ays adjusts in 1 km/h
increments. This is rega rdless of whe ther
yo u press therock er switch toor be yond the
point of resis tance. Ac
tive Di stance Assist DISTRO NIC Fu
nction of Active Di stance Assist
DISTRO NIC Ac
tive Dis tance Assi stDISTRONIC maintains the
set speed on free-flowing roads. If vehicles in
front are de tected, the set dis tance is main‐
ta ined, if necessar y,until theve hicle comes to a
halt. The vehicle accelerates or brakes depend‐
ing on the dis tance totheve hicle in front and th
e set speed. The speed and dis tance tothe
ve hicle in front are set and sa ved on thesteering
wheel on vehicles without the Driving Assis tance
Pa ckage, in thera nge between 20 km/h and
200 km/h and, on vehicles with the Driving
Assis tance Package, in thera nge between
20 km/h and 210 km/h. The maximum speed is
re duced when driving in LOWRANGE off-road
ge ar (/ page210).
Other features of Active Dis tance Assi st
DISTRONIC:
R Adjusts the driving style depending on the
selected drive program (fuel-saving, comfort‐
able or dynamic) (/ page 203)
R Vehicles with Driving Assistance Pack‐
age: reacts tostationary vehicles de tected in
urban speed ranges (e xcept bicycles and
mo torcyc les).
R Initiates acceleration tothestored speed if
th e turn signal indicator is switched on to
ch ange totheov ertaking lane.
R Vehicles with Driving Assistance Pack‐
age: takes one-sided overtaking restrictions
into account on mo torw ays or on multi-lane Driving and parking
247

ro
ads with separate car riag ewa ys(countr y-
dependent).
Ve hicles with Active Parking Assist and Driv‐
ing Assistance Package: ifth eve hicle has
been braked toast andstill on multi-lane, sepa‐
ra te car riag ewa ysby Active Dis tance Assi st
DISTRONIC, it can au tomatical lyfollow theve hi‐
cle in front driving off again within 30 seconds. If
a critical situation is de tected when driving off, a
visual and acoustic warning is given indicating
th at the driver must now take control of theve hi‐
cle. The vehicle is not accelerated any fur ther.
Ac tive Dis tance Assi stDISTRONIC is only an aid.
The driver is responsible forke eping a safe dis‐
ta nce totheve hicle in front, forve hicle speed
and for braking in good time.
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing ins tances:
R In sno w,rain, fog, heavy spr ay, if there is
gl are, in direct sunlight or in great lyvarying
light conditions. R
The windsc reen in the area of the camera is
dirty, mis ted up, damaged or co vered.
R Ifth era dar sensors are dirty or co vered.
R In multi- stor ey car pa rks or on roads with
st eep uphill or downhill gradients.
R Ifth ere are nar rowvehicles in front, such as
bicycles or mo torcyc les.
In addition, on slippery roads, braking or accel‐
erating can cause one or se veral wheels tolose
traction and theve hicle could then skid.
Do not use Active Dis tance Assi stDISTRONIC in
th ese situations. &
WARNING Risk of accident from acceler‐
ation or braking byActive Dis tance
Assi stDISTRONIC
Ac tive Dis tance Assi stDISTRONIC may accel‐
erate or brake in thefo llowing cases, for
ex ample:
R Ifth eve hicle pulls away using Active Dis‐
ta nce Assi stDISTRONIC. R
Ifth estored speed is called up and is
considerably faster or slo werth an the
cur rently driven speed.
R IfAc tive Dis tance Assi stDISTRONIC no
longer de tects a vehicle in front or does
not react toreleva nt objects. #
Alw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times. #
Take into account the tra ffic situation
before calling up thestored speed. &
WARNING Risk of accident due toinsuf‐
fi cient decele ration byActive Dis tance
Assi stDISTRONIC
Ac tive Dis tance Assi stDISTRONIC brakes
yo ur vehicle with up to50 % of the maximum
possible deceleration. If this decele ration is
not su fficient, Active Dis tance Assi st
DISTRONIC alerts you with a visual and
acoustic warning. 248
Driving and pa rking

#
Inthese cases, adjust your speed and
ke ep a suf ficient di stance. #
Brake theve hicle yourself and/or take
ev asive action. &
WARNING Risk of accident if de tection
function of Active Dis tance Assi st
DISTRONIC is impaired
Ac tive Dis tance Assi stDISTRONIC does not
re act or has a limited reaction:
R when driving on a dif fere nt lane or when
ch anging lanes
R topedestrians, animals, bicycles or sta‐
tionary vehicles, or unexpected obs tacles
R tocompl extraf fic conditions
R tooncoming vehicles and crossing traf fic
As a result, Active Dis tance Assi st
DISTRONIC may nei ther give warnings nor
inter vene in su chsituations. #
Alw ays obser vethe tra ffic conditions
carefully and react accordin gly. Operating
Active Di stance Assist DIST RONIC
Re quirements:
R The vehicle has been star ted.
R The elect ric pa rking brake is released.
R ESP ®
is activated and is not inter vening.
R The transmission is in position h.
R All doors and the bonn etare closed.
R Check of thera dar sensor sy stem has been
successfully comple ted.
R Parking Assist PARKTRONIC is not being
used topark theve hicle or toexit from a
parking space.
R DSR is deactivated.
R Vehicles with Off-road pac kage:th eG
drive prog ram is deactivated.
R The vehicle does not skid. Switching between
Active Di stance Assist
DIST RONIC and the limiter #
Press button 1.
Ac tivating the variable limi ter or Active Dis‐
tance Assi stDISTRONIC #
Toactivate with out astored speed: press
rock er switch 3up (SET+) or down (SET-),
or press rocker switch 4up. Remo veyour Driving and parking
249

Sy
stem limits
Ro ute-based speed adap tation does not take
ri ght of wayre gulations into account. The driver
is responsible for complying with road traf fic
re gulations and driving at a suitable speed.
In dif ficult conditions (e.g. unclear roads, lane
nar row ing, wetro ad sur faces, snow or ice) or
when driving wi tha trailer, the speed adjustment
made bythe sy stem may not alw ays be suitable.
In these situations the driver must inter vene
acco rdingly. &
WARNING Risk of accident in spi teof
ro ute-based speed adjustment
Ro ute-based speed adjustment might mal‐
function or be temp orarily una vailable in the
fo llowing situations:
R If map data is not up todate or available
R Ifyo u do not follow the selected route
guidance
R Ifth e set route is re-planned
R Inroad con stru ction areas R
When towing a trailer
R In bad weather or road conditions
R Ifth e accelerator pedal is depressed #
Adjust the speed tothe traf fic situation. Setting
route-based speed adjustment Re
quirements:
R Active Dis tance Assi stDISTRONIC is acti va‐
te d.
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Route speed adapt. #
Activate or deacti vate the function.
When the function is active, theve hicle
speed is adjus ted depending on thero ute
eve nts ahead.
% Further information on thero ute-based
speed adap tation (/ page 252). Ac
tive Steering Assist Fu
nction of Active Steering Assist
% The following function is countr y-dependent
and only available in conjunction with the
Driving Assi stance Package.
Ac tive Steering Assist is only available up to a
speed of 210 km/h. The sy stem helps youto
st ay inthe cent reofthe lane bymeans of mod‐
erate steering inter ventions. Depending on the
speed driven, Active Steering Assist uses the
ve hicles ahead and lane markings as a refer‐
ence.
% Depending on the count ry, in the lo wer
speed range Active Steering Assist can use
th e sur rounding traf fic as a refere nce. If nec‐
essar y,Ac tive Steering Assist can then also
pr ov ide assis tance wi tha driving style out‐
side the cent reofthe lane.
When the sy stem is actively steering, theè
symbol is shown in green in the multifunction
displa y.
If th e de tection of lane markings and vehicles
ahead is impaired, Active Steering Assist
switches topassive mode. The sy stem pr ovides Driving and parking
253