!
When
Active Distance AssistDISTRONIC
or the HOLD function isactivated, thevehi-
cle brakes automaticall yin certain situa-
tions.
To avoid damage tothe vehicle, deactivate
Act ive Distance AssistDISTRONIC andthe
HOLD function inthe followi ngorsimila rsit-
uations:
R when towing thevehicle
R in the carwash
Act ive Distance AssistDISTRONIC canneither
reduce therisk ofan accident ifyou failto
adap tyour driving style,noroverride thelaws
of physics. Active Distance AssistDISTRONIC
cannot takeintoaccount road,weather ortraf-
fic conditions. Active Distance Assist
DISTRONIC isonly anaid. You areresponsible
for the distance tothe vehicle infront ,for
vehicle speed,forbraking ingood timeandfor
staying inyour lane.
Do not use Active Distance AssistDISTRONIC:
R In road andtraffic conditions whichdonot
allow youtomaintain aconst antspeed, e.g.
in heavy traffic oron winding roads
R On slippe ryroad surfaces. Brakingoraccel-
erating couldcause thedrive wheels tolose
traction andthevehicle couldthenskid
R In poor visibil ity,e.g. due tofog, heavy rain
or snow
Act ive Distance AssistDISTRONIC maynot
detect narrow vehicles drivinginfront ,e.g.
motorcycles, orvehicles drivinginastaggered
formation.
In particular, thedetection ofobstacles canbe
impaired if:
R There isdirt onthe sensors oranything else
covering thesensors
R There issnow orheavy rain
R There isinterferenc eby other radarsources
R There arestrong radarreflections, forexam-
ple inparking garages
If Act ive Distance AssistDISTRONIC nolonger
detects avehicle infront ,Distance Pilot
DISTRONIC mayunexpectedly accelerateto
the speed stored. This
speed may:
R Be too high ifyou aredriving inaturning
lane oran exit lane
R Be sohigh when driving inthe right-hand
lane thatyouovertake vehiclesinthe left-
hand lane
R Be sohigh inthe left lane thatyoupass
vehicles drivingonthe right
If there isachange ofdrivers, advisethenew
driver ofthe speed stored.
Cruise control lever 0043
Tostore thecurrent speedorahigher
speed
0044 Tostore thecurrent speedoralower
speed
0087 Todeactivate Active Distance Assist
DISTRONIC
0085 Tostore thecurrent speedorcalls upthe
last stored speed
0083 Toset aspecified minimum distance
Activating ActiveDistance Assist
DISTRONIC Activation
conditions
! When
Active Distance AssistDISTRONIC
or the HOLD function isactivated, thevehi-
cle brakes automaticall yin certain situa-
tions.
To avoid damage tothe vehicle, deactivate
Act ive Distance AssistDISTRONIC andthe
HOLD function inthe followi ngorsimila rsit-
uations:
R when towing thevehicle
R in the carwash 160
Driving
systemsDriving andparking
object
swhen theyareinthe immediate
vicinit yof the vehicle. Youcould damage the
vehicle orthe object s.
The sensors maynotdetect snowandother
object sthat absorb ultrasonic waves.
Ultrasonic sourcessuchasan automatic car
wash, thecompressed- airbrakes ofatruck
or apneumatic drillcould cause Parking
Assist PARKTRONIC tomalfunct ion.
Parking AssistPARKTRONIC maynotfunc-
tion correc tlyon uneven terrain.
Parking AssistPARKTRONIC isactivated auto-
matically whenyou:
R switch onthe ignition
R shift thetransm issiontoposition 005B,005Eor
005C
Parking AssistPARKTRONIC isdeactivated at
speeds above11mph (18km/ h).It is rea cti-
vate dat lowe rspe eds.
Rang eof the senso rs Gen
eral notes
Pa rking AssistPAR KTRONIC doesnot take into
acco untobstacl eslocate d:
R bel ow the dete ction range,such asper sons ,
ani mal sor obje cts
R ab ove thedete ction range,e.g. overhanging
lo ad s,tai lsecti onsorload ing ram psof
trucks 0043
Senso rsinthe front bumpe r,left-ha ndside
(e xamp le)
The sens orsmus tbe free from dirt, ice or
slu sh. The ycan othe rwisenot functi oncor-
rectl y.Clea nthe sens orsregularl y,taki ngcare
not toscra tchordamag ethem (Ypage 283 ). Rang
e 0043
Detecti onrang eof front sensors
0044 Detecti onrang eof rea rsens ors
Front sensors Ce
nter Appr
ox.40in(app rox.
100 cm) Co
rners Appr
ox.24in(app rox.
60 cm) Re
ar sens ors Ce
nter Appr
ox.48in(app rox.
120 cm) Co
rners Appr
ox.32in(app rox.
80 cm) Mini
mum distance Ce
nter Appr
ox.8in (app rox.
20 cm) Co
rners Appr
ox.6in (app rox.
15 cm) If
an obs tacl eis dete cted within thisrang e,the
rel eva ntwa rning displ ayslight upand awa rn-
ing tone sounds. Ifthe distance fallsbel ow the
mini mum ,the distance maynolonger be
sho wn. 17
2 Dri
ving sys temsDriving and parkin g
Warning
displays 0043
Segments onthe left-ha ndside ofthe vehi-
cle
0044 Segments onthe right-ha ndside ofthe
vehicl e
0087 Segments showingopera tional readiness
The warning displaysshow thedista nce
betwe enthe sensors andtheobsta cle.The
wa rning displayforthe front areaisloca tedon
the dashboa rdabo vethe center airvents. The
wa rning displayforthe rear area isloca tedon
the headliner inthe rear compa rtment.
The warning displayforeach sideofthe vehi-
cle isdivi ded into fiveyellow and tworedseg-
ments. ParkingAssist PARKTR ONICisopera -
tional ifyel low segme ntsshow ingopera tional
read iness 0087light up.
The gearleve rposi tion orthe transmiss ion
posi tion ofthe automatic transmiss ionand the
dire ction inwhi chthe vehicl eis roll ing deter-
mine whichwarning displayisactive whenthe
engine isrunning. Transmissi
onposi -
tion Warning
display 005B
Front
areaactiva ted 005E,
005Corthe vehi-
cle isroll ing back-
wa rds Rea
rand front areas
activa ted 005D
No
area sactiva ted One
ormore segme ntslight up asthe vehicl e
app roache san obsta cle,depe nding onthe
vehicl e'sdista ncefrom theobsta cle.Inadd i-
tion, warning tones areissu ed.
When thedista ncetothe obsta cleissuffi cient,
you willhea ran intermittent warning tone. The
shorter thedista ncetothe obsta cle,the
shorter thefrequ ency ofthe intermittent warn-
ing tones become s.When theminimu mdis-
tance isreache d,you heara continuou swa rn-
ing tone.
De activati ngoractivati ngParking
Ass istPARK TRONIC 0043
Indica torlam p
0044 Deactiva tesoractiva tesParki ngAssist
PARKTR ONIC
If indica torlam p0043 islit, Parki ngAssist
PARKTR ONICisdea ctivated.
i Parki
ngAssist PARKTR ONICisau tomati-
call yactiva tedwhe nyou turn theSmartKey
to posi tion 0048inthe igniti onlock. Driv
ingsyste ms
173Drivingand parking Z
Problems
withParking AssistPARKTRONIC Problem
Possible
causes/co nsequences and0050 0050
Solutions Only
thered segments
in the Parking Assist
PARKTRONIC warning
display sare lit.You also
hear awarning tonefor
approximately twosec-
onds.
Parking Assist
PARKTRONIC isthen
deactivated andthe
indicator lamponthe
PARKTRONIC button
lights up. Parking
AssistPARKTRONIC hasmalfunction edand hasbeen deac-
tivated.
X Ifproblems persist,haveParking AssistPARKTRONIC checkedat
a quali fiedspecialist workshop. Only
thered segments
in the Parking Assist
PARKTRONIC warning
display sare lit.Parking
Assist PARKTRONIC is
then deactivated. The
Parking AssistPARKTRONIC sensorsaredirty orthere isinter-
ferenc e.
X Clean theParking AssistPARKTRONIC sensors(Ypage 283).
X Switch theignition backon. The
problem maybecaused byan extern alsource ofradio orultra-
sound waves.
X Check tosee ifParking AssistPARKTRONIC worksatadifferent
location. Active
Parking Assist
General notes Act
ive Parking Assistisan electron icparking
aid with ultrasound. Itmeasures theroad on
both sides ofthe vehicle. Aparking symbol
indicates asuitable parkingspace.Active
steering intervention andbrake application
can assist youduring parking andwhen exiting
a parking space.Youcanalso stilluse Parking
Assist PARKTRONIC (Ypage 171).
Import antsafety notes Act
ive Parking Assistismerely anaid. Itis not
a replacement foryour atten tiontoyour imme-
diate surroundings. Youarealwa ysresponsi-
ble forsafe maneuvering, parkingandexiting a
parking space.Makesurethatthere areno
persons, animalsorobject sin the maneuver-
ing area when youaremaneuvering orparking.
When Parking AssistPARKTRONIC isdeactiva-
ted, Active Parking Assistisalso unavaila ble. G
WARNING
While parking orpulli ngout ofaparking
space, thevehicle swingsoutand candrive
onto areas ofthe oncomin glane. Thiscould
cause youtocollide withother roadusers or
object s.There isarisk ofan accident.
Pay atten tiontoother roadusers orobject s.
Stop thevehicle ifnecessary orcancel the
Act ive Parking Assistparking procedure.
! If
they cannot beavoided, driveover
obstacles suchascurbs slowly andatan
obtuse angle.Otherwise, youmay damage
the wheels ortires.
Act ive Parking Assistmaypossibly indicate
parking spaceswhicharenot suitable forpark-
ing, forexample:
R where parking orstopping isprohibited
R in front ofdriveways orentr ances andexits
R on unsuitable surfaces 174
Driving
systemsDriving andparking
still
detects increasing lapsesinconcen tra-
tion, youwillbewarned againafter 15minutes
at the earliest. Thiswillonly happen ifATTEN-
TION ASSISTstill detects typicalindicators of
fatigue orincreasing lapsesinconcen tration.
Vehicles withtheCOMAND multimedia
system: ifawarning isoutput inthe multi-
function display,aservice stationsearchis
performed inthe multimedia system.Youcan
select aservice stationandnavigation tothis
service stationwillthen begin. Thisfunction
can beactivated ordeactivated inthe multi-
media system; seetheDigital Operator's Man-
ual . Lane
Tracking package
General notes The
Lane Tracking packageconsistsofBlind
Spot Assist (Ypage 185)andLane Keeping
Assist (Ypage 186).
Blind SpotAssis t General
notes
Blind SpotAssist monitors theareas oneither
side ofthe vehicle thatarenot visible tothe
driver withtwolateral, rear-facing radarsen-
sors. Awarning displayin the exterior mirrors
draws yourattent iontovehicles detected in
the monitored area.Ifyou then switch onthe
corresponding turnsignal tochange lane,you
will also receive anoptical andaudiblewarn-
ing.
Blind SpotAssist supports youfrom aspeed of
approximately 20mph (30km/h).
Importa ntsafety notes G
WARNING
Blind SpotAssist doesnotreact to:
R vehicles overtaken tooclosely onthe side,
placing theminthe blind spotarea
R vehicles whichapproach withalarge
speed differential andovertake yourvehi-
cle
As aresult, BlindSpotAssist maynotgive
warnings insuch situations. Thereisarisk
of an accident. Always
observe thetraffic conditions care-
fully ,and maintain asafe lateral distance.
Blind SpotAssist isonly anaid. Itmay failto
detect somevehicles andisno substitute for
attent ivedriving. Alwaysensurethatthere is
sufficient distancetothe side forother road
users andobstacles.
i USA
only:
This device hasbeen approved bythe FCC
as a"Vehicul arRada rSystem". Theradar
sensor isintended foruse inan automotive
radar system only.Removing, tampering
with, oraltering thedevice willvoid anywar-
ranties, andisnot permitted bythe FCC. Do
not tamper with,alter, oruse inany non-
approved way.
Any unauthorized modificationtothis device
could voidtheuser’s authority tooperate
the equip ment.
Rada rsenso rs
The radar sensors forBlind SpotAssist are
integrated intotherear bumper. Makesure
that thebumpers arefree from dirt,iceor
slush. Thesensors mustnotbecovered, for
example bycycle racks oroverhanging loads.
Following asevere impact orinthe event of
damage tothe bumpers, havethefunction of
the radar sensors checked ataqual ified spe-
cialist workshop. BlindSpotAssist maynolon-
ger work properly.
Monitoring rangeofthe senso rs
In particular, thedetection ofobstacles canbe
impaired if:
R there isdirt onthe sensors oranything else
covering thesensors
R there ispoor visibil ity,e.g. due tofog, heavy
rain orsnow
R anarrow vehicle traveling infront ,e.g. a
motorbike orbicycle
R the road hasvery wide lanes
R the road hasnarrow lanes
R you arenot driving inthe middle ofthe lane
R there arebarriers orother roadboundarie s
Vehicles inthe monitoring rangearethen not
indicated.
Blind SpotAssist monitors thearea upto10 ft
(3 m) behind yourvehicle anddirectly nextto
it. Driving
systems
185Drivingandparking Z