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 on
radar and ultrasonic senso rsSome driving and driving sa
fety sy stems use
ra dar or ultrasonic sensors tomonitor the area
in front of, behind or next totheve hicle (depend‐
ing on theve hicle's equipment).
Depending on theve hicle's equipment, thera dar
sensors are integrated behind the bumpers
and/or behind thera diator grille. The ultrasonic
sensors are located in the front and rear bump‐
ers. Keep these parts free of dirt, ice and slush
(/ page 497). The sensors must not be cov‐
ered, forex ample bybicycle rack s, ove rhanging
loads, sticke rs,fo il or foils toprotect against
st one chipping. Additional licence plate brac kets
can li kewise impair the function of the ultrasonic
sensors. In theev ent of damage tothe bumpers
or radiator grille, or following a collision impact‐
ing the bumpers or radiator grille, ha vethe func‐ tion of
the sensors checked at a qualified spe‐
cialist workshop. If the sensors are damaged,
some driving sy stems and driving saf ety sy stems
may no longer function proper ly. 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 267)
R ABS (A nti-lock Braking System)
(/ page 226)
R Active Dis tance Assi stDISTRONIC
(/ page 243)
R Adaptive Brake Lights (/ page 237)
R Active Brake Assi st (/ page 231)
R Active Lane Keeping Assist (/ page 285)
R Start-off assist (/ page 257)
R ATTENTION ASSIST (/ page277)
R BAS (Bra keAssist System) (/ page 226)
R Hill Start Assist (/ page 255) R
DSR (Dow nhillSpeed Regulation)
(/ page 241)
R Suspension with ada ptive damping adjust‐
ment (/ page 257)
R EBD (Electronic Brakeforc eDistribution)
(/ page 231)
R ESP ®
(Elect ronic Stability Program)
(/ page 227)
R Off-road ESP ®
(/ page 230)
R ESP ®
Crosswind Assist (/ page 230)
R ESP ®
trailer stabilisation (/ page 230)
R Speed Limit Assist (/ page278)
R Active Speed Limit Assi st (/ page 246)
R HOLD function (/ page 255)
R STEER CONTROL (/ page 231)
R Active Steering Assist with emer gency cor ri‐
dor function (/ page249)
R Limi ter (/ page 238)
R Active Emergency Stop Assist (/ page 253)
R Active Parking Assist (/ page270)
R Parking Assist PARKTRONIC ( /page 258) Driving and parking
225
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 limits
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.
R If pedestrians or vehicles mo vequickly into
th e sensor de tection range.
R If pede strians are hidden by other objects. 236
Driving and parking
R
Ifth e typical outline of a pedestrian cann ot
be distinguished from the bac kground.
R If a pedestrian is not de tected as su ch, e.g.
due tospecial clo thing or other objects.
R On bends with a tight radius.
% The Active Brake Assi stsensors adjust auto‐
matically while a cer tain dis tance is being
driven af terth eve hicle has been delivered.
Ac tive Brake Assi stis una vailable or only
partially available during this teach-in period. Setting
Active Brake Assi st Re
quirements:
R The ignition is switched on.
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Active Brake Assist
The following settings are available:
R Early
R Medium
R Late #
Select a setting.
The setting is retained when the engine is
next star ted.
Deactivating Active Brake Assi st
% It is recommended that you alw ays lea ve
Ac tive Brake Assi stactivated. #
Select Off.
The dis tance warning function, the autono‐
mous braking function and the Evasive Steer‐
ing Assist are deactivated.
When theve hicle is next star ted, the middle
setting is automatically selected.
% IfAc tive Brake Assi stis deactivated, the
æ symbol appears inthest atus bar of the
multifunction displa y. Fu
nction of Adaptive Brake Lights Ad
aptive Brake Lights warnfollowing traf fic in an
emergency braking situation wi th thefo llowing
actions:
R Byflashing the brake lamps
R By activating the hazard warning lights If
th eve hicle is braked sharply from speeds
abo ve50 km/h, the brake lamps flash rapidl y.
This pr ovides traf fic tr avelling behind you with an
ev en more noticeable warning.
If th eve hicle is tr avelling at speeds of more than
70 km/h at the beginning of the brake applica‐
tion, the hazard warning lights switch on once
th eve hicle is stationar y.When you pull away
again, the hazard warning lights will switch off
automatically at appr oximately 10km/h. Yo u
can also switch off the hazard warning lights
using the hazard warning button. Cruise control and limiter
Fu
nction of cruise control
Cruise cont rolre gulates the speed totheva lue
selec tedby the driver.
If yo u accelerate toove rtake, forex ample, the
st ored speed is not dele ted. If youre mo veyour
fo ot from the accelera tor pedal af terov ertaking,
cruise control will resume speed regulation back
to thestored speed.
Cruise contro l is operated using the cor respond‐
ing steering wheel buttons. You can store any Driving and parking
237
indicator but a lane
change is not immediately
possible, a gr eyarrow 1appears next tothe
st eering wheel symbol, which remains green.
When the lane change assis tance starts, the turn
signal indicator is automatically activated along
with the display in the multifunction displa y.
If th e assis tance graphic is shown when chang‐
ing lanes, the lane change display appears with
an additional ar rowpointing towa rdsth e adja‐
cent lane (/ page 253).
If a lane change is not possible, the ar row fades
out af ter a few seconds and a new lane change
must be initiated. An immediate lane change is
on lypossible on mo torw ay sections without
speed limits.
If th e sy stem is impaired, Active Lane Change
Assi stmay be cancelled. If it is cancelled, the
Lane change cancelled message appears inthe
multifunction display and a warning tone sounds. &
WARNING Risk of accident from chang‐
ing lane toan occupied adjacent lane
Lane Chan geAssi stcannot al ways detect
clearly if the adjacent lane is free. The lane
change might be initiated although
th e adjacent lane is not free. #
Before changing lanes, make sure that
th e neighbouring lane is free and there
is no danger to otherroad users. #
Monitor the lane change. &
WARNING Risk of accident if Lane
Change Assi stunexpectedly stops func‐
tioning
If th e sy stem limitations for Lane Change
Assist ha vebeen reached, there is no guar‐
antee that the sy stem will remain active.
Lane Change Assist cannot then assist you
by applying steering torques. #
Alw ays monitor the lane change and
ke ep your hands on thesteering wheel.
Obser vethe tra ffic conditions and steer
and/or brake if necessar y. Sy
stem limits
The sy stem limitations of Active Steering Assist
apply toActive Lane Change Assi st
( / page 249).
The sy stem may also be impaired or may not
function in thefo llowing situations:
R The sensors in there ar bumper are dirty,
damaged or co veredby ast icke r or ice and
sno w,forex ample.
R The exterior lighting is malfunctioning.
% The Active Lane Change Assi stsensors
adjust automatically while a cer tain dis tance
is being driven af terth eve hicle has been
delivered. Active Lane Change Assi stis
una vailable or only partially available during
th is teach-in process, no ar row appears next
to theØ Active Steering Assist symbol
when the turn signal indicator is activated. 252
Driving and parking
Pa
rking Assist PARKTRONIC Fu
nction of Parking Assist PARKTRONIC Pa
rking Assist PARKTRONIC is an electronic
parking assi stance sy stem with ultrasound. It
monitors the area around your vehicle using mul‐
tiple sensors 1onthe front bumper and on the
re ar bumper. Parking Assist PARKTRONIC sho ws
yo uth e dis tance between your vehicle and a
de tected obs tacle visually and audibly.
Pa rking Assist PARKTRONIC is on lyan aid. It is
not a substitute foryo ur attention tothe sur‐
ro undings. The responsibility for safe manoeu‐
vring and parking remains with you. Make sure
th at there are no persons, animals or objects in th
e manoeuvring area while manoeuvring and
parking in/exiting parking spaces.
In thest andard setting, an intermit tent wa rning
to ne sounds from a di stance of appr oximately
0.3 m toan obs tacle in front and appr oximately
1. 0 m toan obs tacle behind. A continuous warn‐
ing tone sounds from a di stance of appr ox‐
imately 0.2 m. Using theWarn early all-round
setting in the multimedia sy stem, thewa rning
to nes for front and side impact pr otection can
be set tosound at a greater dis tance of appr ox‐
imately 1.0 m in front and 0.6 m on the sides
(/ page 263).
% The Warn early all-round setting is always
active in there ar of theve hicle.
If Pa rking Assist PARKTRONIC is deacti vated,
Ac tive Parking Assist is una vailable. Pa
rking Assist PARKTRONIC displ ayinthe
mu ltimedia sy stem Ve
hicles with Active Parking Assist without a
360° Camera 258
Driving and parking
Ve
hicles with Active Parking Assist and a 360°
Camera
If Ac tive Parking Assist is deactivated and an
obs tacle is de tected in the path of theve hicle, a
pop-up window forPa rking Assist PARKTRONIC
1 appears in the multimedia sy stem at speeds
below 10km/h.
The colour of the individual segments of the
wa rning display is based on the dis tance tothe
de tected obs tacle:
R Yellow segments: obstacles at a di stance
between appr ox. 0.6 m and 1.0 m R
Orange segments: obstacles at a di stance
between appr ox. 0.3 m and 0.6 m
R Red segments: obstacles at a very short
dis tance of appr ox. 0.3 m or less
Dis play of Active Parking Assist PARKTRONIC
in the head-up displ ay Optionally, obs
tacles de tected byActive Parking
Assist PARKTRONIC from a dis tance of appr ox‐
imately 1.0 m in front 2and 0.6 m on the sides
3 can also be displa yed in the head-up displa y.Sy
stem limits
Pa rking Assist PARKTRONIC does not necessa‐
ri ly take into account thefo llowing obs tacles:
R Obs tacles bel ow the detection range, e.g.
pe rsons, animals or objects.
R Obs tacles ab oveth e de tection range, e.g.
ove rhanging loads, overhangs or loading
ra mp s of lor ries.
The sensors must be free of dirt, ice and slush.
Otherwise, they may not function cor rectly.
Clean the sensors regularly, especially af ter driv‐
ing off-road, taking care not toscratch or dam‐
age them.
Ve hicles with trailer hitch: Parking Assist
PA RKTRONIC is deacti vatedfo rth ere ar zone
when you es tablish an elect rical connection
between your vehicle and a trailer. Driving and parking
259
Problem
Possible causes/consequences and M
MSolutions
Re ar 1 or all-round 2segments light
up red. The ésymbol appears in
th e multifunction displa y. #
Check if Parking Assist PARKTRONIC is working at a dif fere nt location.
Re ar 1 or all-round 2segments light
up red. At the same time, a warning
to ne sounds for appro ximately two sec‐
onds everytime theve hicle is star ted.
The é symbol appears in the multi‐
function displa y. The sensors are dirty. #
Clean the sensors and obser vethe no tes on care of vehicle parts (/ page 497).
Pa rking Assist PARKTRONIC has been deacti vated due toa malfunction. #
Start theve hicle again. #
Ifth e problem persists, consult a qualified specialist workshop. Fu
nction of the passive side impact pr otec‐
tion
Pa ssive side impact pr otection is an additional
Pa rking Assist PARKTRONIC function which
wa rnsth e driver about obs tacles at the side of
th eve hicle. A warning is issued when obs tacles
are de tected between the front and rear de tec‐
tion range. In order for an object on the side to
be de tected, the sensors in the front and rear
bumper must firs t de tect the object while you
are driving past it. During
the parking procedure or manoeuvring,
objects are de tected as theve hicle drives past.
If yo usteer in the direction of a de tected obs ta‐
cle and there is a risk of a lateral collision, a
wa rning is issued. The segments on the sides
light up yellow or red, depending on the dis tance
to the obs tacle. Segment colour depending on distance
Colour Lateral distance
Ye llo wA pprox. 30 - 60 cm
Re dA pprox. < 30 cm In order
for lateral front or rear segments tobe
displa yed, theve hicle must firs t tr ave l a dis tance
of at least half of theve hicle length. Once the
ve hicle has tr avelled the length of theve hicle, all Driving and parking
261
of
the lateral front and rear segments can be dis‐
pla yed. Pa
rking Assist PARKTRONIC display: vehicles
without a 360° Camera
1 Operational front and rear
2 Operational front, rear and sides
3 Obstacle de tected at the front right (yellow)
and rear (red) Pa
rking Assist PARKTRONIC display: vehicles
with a 360° Camera
1 Operational front and rear
2 Operational front, rear and sides
3 Obstacles de tected at the front right (red)
Sa ved obs tacles on the sides are dele ted in the
fo llowing situations, forex ample:
R You park theve hicle and switch off the igni‐
tion.
R You open the doors.
Af terth e engine is restar ted, obs tacles on the
sides must be de tected again before a new
wa rning can be issued. Sy
stem limits
The sy stem limits forPa rking Assist
PA RKTRONIC apply topassive side impact pro‐
te ction.
The following objects are not de tected, forex am‐
ple:
R Pedestrians who approach theve hicle from
th e side
R Objects placed next totheve hicle
Ac tivating/deactivating Parking Assist
PA RKTRONIC
* NO
TERisk of an accident from objects
at close range Pa
rking Assist PARKTRONIC may not de tect
cer tain objects at close range. #
When pa rking or manoeuvring theve hi‐
cle, pay particular attention toany
objects which are abo veor below the
sensors, e.g. flowe rpots or dr awbars.
The vehicle or other objects could oth‐
erwise be damaged. 262
Driving and parking