Display MERCEDES-BENZ M-Class 2012 W166 Workshop Manual
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2012, Model line: M-Class, Model: MERCEDES-BENZ M-Class 2012 W166Pages: 396, PDF Size: 14.48 MB
Page 199 of 396

i
The
infrared lampsswitch on
automatically fromaspeed ofabout 6mph
(10 km/ h).This means thatyoudonot have
the fullvisual rangewhilethevehicle is
stat ionary andcann otchec kwhether Night
View Assist Plusisworking.
Pedestrian recognition G
WARNING Pedestrian
recognitionmay beimpaired or
inoperative if:
R pedestrians arepartially orentirely
obscured byobject s,e.g. parked vehicles.
R the silhouette ofthe pedestrian inthe Night
View Assist Plusdisplay isincomplete or
interrupted, e.g.bypowerful light
reflections.
R pedestrians donot cont rast with the
surroundings.
R pedestrians arenot standing upright,for
example, ifthey aresitting, crouching or
lying down. i
Animals
arenot recogniz edbypedestrian
recognit ion.
Night ViewAssist Plusisable torecogniz e
pedestrians bytypical characterist ics,e.g. a
silhouette inthe shape ofap erson .
Pedestr ianrecogn itionisthen switch edon
automatic allyif:
R Night ViewAssist Plusisactivat ed.
R you aredriving fasterthan6mph
(10 km/ h).
R the surroundin gsare dark, e.g.when
driving outside built-up areaswithout
str eet lighting.
If pedestrian recognitionisactive,
symbol ?appears. Ifpedestrian sare
recogn ized,theyareframed =and thereby
highlighted. Ifthe pedestrian recognition
system hasbrought apedestrian toyour
atten tion,look through thewindshield to
evaluate thesituation .The actual distance toobject
sand pedestrians cannotbegauged
accurately bylooking atascreen.
It may bethe case thatobject sare highlighted
as well aspedestrians.
Fogg edup ordirt ywindsh ield If
the windsh ieldinfro ntofthe camer ais
fogge dup ordirt yon the inside oroutsid e,the
Night ViewAssistPlus display isaffec ted. G
WARN
ING Please
donot forg etthat your primar y
respo nsibilit yis to drive thevehic le.Ad river's
attention tothe road must alwaysbe his/he r
prima ryfocus whendriving.For yoursafety
and thesafety ofothers, stopbefore tryingto
remove windowfoggi ngorclea ning the
winds hieldin front ofthe Night ViewAssist
Plu scamera .
Bear inmind thatataspeed ofjust 30mph
(ap proxima tely50km/h), yourvehicle is
cover ingadistanc eof 44 feet
(approximately 14m)every second.
X To defr ost: chec kthe automatic air
con ditionin gsett ings (Ypage 132)and fold
do wn the cam eracove r(Y page 323) .
X To def ros tthe inside ofthe winds hield:
fol ddo wn the cam eracove r(Y page 323)
and clean the windsh ield (Y page 321) . Dri
ving sys tems
197Driving and parking Z
Page 201 of 396

alte
ringof thedevi cewill void any
warr anties, and isno tp ermit tedbythe
FCC. Donot tamper with,alter, oruse in
any non-approved way.
An yunauthoriz edmodificat iontothis
device couldvoidtheuser’s authorit yto
operate theequipment.
For Blind SpotAssist toassist youwhen
driving, theradar sensor system mustbe
activat ed(Ypage 236)and operation al.
Monitoring rangeofthe sensors
Blind SpotAssist monitorsthe area shown in
the figure upto10 ft(3 m) behind and
immediately adjacenttoyour vehicle. G
WARNIN
G Blind
SpotAssist monitorscert ainareas inthe
immediate vicinityof your vehicle. Vehicles
that approach anddrive pastathigh speeds
are not detect ed.There isno display andno
warning.
If the lanes arevery wide, itmay notbe
possible tomonit orthe complete widthofthe
neighboring lane.Forthis reason, vehicles in
the next lanemaynotbedetect ed,especially
if they aredriving inastaggered formation.
This may bethe case ifvehicles aredriving at
that edge oftheir lanewhich isfurthest away
from yourvehicle. Always
payatten tiontotraffic conditionsand
your surroundings. Otherwise,youmay failto
recogn izedangers intime, cause anaccident
and injure yourself andothers.
If the lanes arenarrow, vehicles drivinginthe
lane beyond thelane next toyour vehicle may
be indicated, especially ifthe vehicles arenot
driving inthe middle oftheir lane. Thismay
be the case ifthe vehicles aredriving onthe
inner sideoftheir lane.
Due tothe nature ofthe system:
R warnings maybeissued inerror when
driving closetocrash barriers orsimilar
solid laneborders.
R warnings maybeinterr upted whendriving
alongside longvehicles, suchastruck s,for
a prolonged time.
The two sensors forBlind SpotAssist are
integr atedintothesides ofthe rear bumper.
Make surethatthebumper isfree from dirt,
ice orslush around thesensors. Therear
sensors mustnotbecovered, forexample by
bicycle racksoroverhanging loads.Following
a severe impact orinthe event ofdamage to
the bumpers, havethefunct ionofthe radar
sensors checkedataquali fiedspecialist
workshop, e.g.anauthorized Mercedes-B enz
Center. BlindSpotAssist mayotherwise not
work properly.
Indicator andwarning display :
Yellow indicator lamp/red warninglamp
When BlindSpotAssist isactivated, indicator
lamp :lights upyellow inthe exter ior
mirrors uptoavehicle speedof20 mph Driving
systems
199Driving and parking Z
Page 203 of 396

:
Lane Keepi ngAssist camera
If you have chosen the Display
Unit Speed-/Odom
eter (Y
page 233)function in
the on-board computer andselect km as
the
unit ofmeasu rement, ActiveLaneKeepi ng
Assist isactive fromspeed sof 60 km/h. If
the miles disp
layunit isselected, the
assi stance rangebeginsat40 mph. G
WARNING Lane
Keepi ngAssist doesnotkeep your
vehicle inits lane. Itis only anaid and may
detect thelane markings onthe road
incorrectly ornot atall.
The system maybeimpa iredormay not
function if:
R there ispoor visibility, e.g. due to
insuffici entillumina tionofthe road, ordue
to snow, rain,fogorspray .
R there isgla re, e.g. from oncoming traffic,
the sun, orreflection fromother vehicle s.
R the windshi eldisdirty, fogged upor
covered, forinstance byasticker, inthe
vicinity ofthe camera.
R several orno lane markings forasingle lane
are present.
R the lane markings areworn away,dark or
covered up,e.g. bydirt orsnow.
R the distance tothe vehicle infront istoo
small andthelane markings thuscannot be
detected.
R the lane markings onthe road areunclea r,
e.g. near roadw orks. R
the lane markings changequickly, e.g.
lanes branch off,cross oneanother or
merge.
R the road isnarrow andwindi ng.
Lane Keepi ngAssist cannot detectroadand
traffic conditions. Itis not asubstitu tefor
attentive driving.Youareresponsib lefor the
vehicle 'sspeed ,braking ingood time, and
steering correctly. Alwaysada ptyou rdriving
style tosui tthe prevailing roadandweather
conditions .Always payattent iontotraffic
conditions andyour surroundings. Otherwise,
you may failtorecognize dangersintime,
cause anaccident andinjure yourself and
others.
A warning canbegiven when afront wheel
passes overalane marking. Itwill warn you
by means ofintermit tentvibration inthe
steering wheelforupto1.5 seconds.
Switching onLane Keeping Assist X
Switch onAct iveLane Keeping Assistusing
the on-board computer; todo so, select Standard or Adaptive (Y
page 233).
Symbol :appea rsinthe multifunction
displa y.
If your speed exceeds 40mph (60km/h)
and lane markings aredetected,
symbol :ishighlighted. LaneKeeping
Assist isready foruse.
Standa rd
If Standard is
selected, nowarning vibration
occurs if: Driving
systems
201Driving and parking Z
Page 204 of 396

R
you swit chon thetur nsignals .Int his event,
the warnings aresuppressed foracertain
period oftime.
R adriving safetysystem interven es,such as
ABS ,BAS orESP ®
.
Adapt ive
If Adaptive is
selected, nowarning vibration
occurs if:
R you switch onthe turn signals. Inthis event,
the warnings aresuppressed foracertain
period oftime.
R adriving safetysystem interven es,e.g.
ABS ,BAS orESP ®
.
R you accelerate hard,e.g.kickdown.
R you brake hard.
R you steer actively, e.g.swerve toavoid an
obstacle orchange lanequickly.
R you cutthe corner onasharp bend.
In order thatyouarewarned onlywhen
necessary andingood timeifyou cross the
lane marking, thesystem recogniz escertain
condition sand warns youaccordingly.
The warning vibration occursearlierif:
R you approach theouter lanemarking ona
bend.
R the road hasvery wide lanes, e.g.a
freeway.
R the system recogniz essolid lanemarkings.
The warning vibration occurslaterif:
R the road hasnarrow lanes.
R you cutthe corner onabend. Active
Driving Assistance package
General notes The
Active Driving Assistanc epackage
consist sof DIS TRONIC PLUS(Ypage 169),
Act ive Blind SpotAssist (Ypage 202)and
Act ive Lane Keeping Assist(Ypage 205). Active
BlindSpotAssist Import
antsafety notes
Act ive Blind SpotAssist usesaradar sensor
system tomonitor theside areas ofyour
vehicle whichareinback ofthe driver. A
warning displayin the exterior mirrorsdraws
your attent iontovehicles detectedinthe
monitored area.Ifyou then switch onthe
corresponding turnsignal tochange lane,you
will also receive anoptical andaudible
collision warning. Ifarisk oflateral collision
is detect ed,correct ivebraking mayhelp you
avoid acollision. Tosupport thecourse-
correct ingbrake application, Active Blind
Spot Assist alsouses theforward-facing radar
sensor system. Active Blind SpotAssist
supports youfrom speeds ofapproximately
20 mph (30km/h). G
WARNING Act
ive Blind SpotAssist isonly anaid, and
may detect vehicles/obstacles incorrectlyor
not atall.
The system maybeimpaired ormay not
funct ionif:
R there ispoor visibili ty,e.g. due tosnow,
rain, fogorspray.
R the rear and/or frontsensors aredirty.
Act ive Blind SpotAssist maynotdetect
narrow vehicles, suchasmotorc yclesor
bicycles, ormay onlydetect themtoolate. It
cannot detectvehicles thatareovertaken at
a small distance andthen enter theblind spot
area.
Act ive Blind SpotAssist cannot detectroad
and traffic condition s.Itis not asubstitute for
attent ivedriving. Youareresponsible forthe
vehicle's speed,braking ingood time, and
steering correctly.Always adaptyourdriving
style tosuit theprevailing roadandweather
condition s.Always payattent iontotraffic
condition sand your surroundings. Otherwise,
you may failtorecogniz edangers intime,
cause anaccident andinjure yourself and
others. 202
Driving
systemsDriving and parking
Page 206 of 396

Indi
catorand warning displa y :
Yellow indicat orlamp/ redwarn inglamp
When ActiveBlin dSpo tAssist isactivated,
indicator lamp:lights upyell ow inthe
exterior mirrorsuptoav ehicle speed of
20 mph (30km/ h).When thevehicle speed
exc eeds 20mph (30km/ h),the indicat or
lamp goesoutand Active Blind SpotAssist is
ready foruse.
When yourspeed exceeds approximat ely
20 mph (30km/ h),warning lamp:lights up
red onthe corr espondin gside whenever a
vehicle isdetec tedinthe blind spot
monit oringrange. Thiswarning isalway s
given when avehicle enters the blind spot
monit oringrange frombehind orfrom the
side. When youarepassing anothervehicle,
the warning isemitt edonly ifthe differen ce
in speed isless than 7mph (12km/ h).
The yellow indicatorlamp goesoutifrevers e
gear isengaged. Inthis event ,Ac tive Blind
Spot Assist isno longer active.
The brightn essofthe indicat or/warn ing
lamps isadjusted automatic allyaccor dingto
the ambient light. G
WARN
ING Act
iveBlind SpotAssist isnot active atspeeds
lower than20mph (30km/ h).The indicat or
lamps inthe exterior mirror sare yellow.
Vehicles inthe monit oringrange arethen not
indicat ed.
Always payatten tiontotraff iccon ditions and
your surroundin gs.Other wise,youmay failto recogn
izedangers intime, cause anacciden t
and injur eyourself andother s.
Visua land audible collision warnings
If you switch onthe appropriate turnsignals
and avehicle isdetec tedinthe side
monit oringrange, youwillreceive avisual and
acoustic collisionwarning. Youwillhear a
double warning toneand redwarning
lamp :flashes. Ifthe turn signal remains on,
vehicles detectedareindicat edbythe
flashing ofred warning lamp:.Thereareno
further warning tones.
Course-correcting brakeapplication
If Act ive Blind SpotAssist detectsa risk ofa
lateral collision inthe monitorin grange, a
course-corr ectingbrakeapplication iscarried
out. This ismeant toassist youinavoiding a
collision.
The course-corr ectingbrakeapplication is
availa bleinthe range between 20mph
(30 km/h) and120 mph (200 km/h).
If acourse-corr ectingbrakeapplication
occurs, redwarning lamp:flashes inthe
exterior mirrorandthefollowing isshown in
the multifunction display,for example: G
WARNING Act
ive Blind SpotAssist isonly anaid
designed toassist driving. Itis not asubstitute
for attent ivedriving. Insome cases, the
course-corr ectingbrakeapplication isnot
sufficient toavoid acollision. Insuch acase,
you must steer, brakeoraccelerate.
In very rarecases, thesystem may
erroneously detectadanger ofcollision inthe
area ofcrash barriers orsimilar laneborders
and apply thebrakes. ActiveBlind SpotAssist
does notdetect alltraffic situations androad 204
Driving
systemsDriving and parking
Page 207 of 396

user
s.Alwa ysmak esure that there is
suff icientdist anceon theside forother traff ic
or obst acles.An inap propriat ebrak e
applic ationm aybe interr upte dat any timeif
you steer sligh tlyintheoppos itedire ction or
acc eler ate.
You arerespon sible fordriv ingatappro priate
spee ds,brak ingingood time,and steeri ng
cor rectly. Always adaptyourdrivingstyle to
suit theprev ailingroad andweat her
con dition s.Always payattent ion totraff ic
con dition sand your surroundings. Other wise,
you may failtorec ogn izedang ersintim e,
caus ean acc iden tand inju reyoursel fand
othe rs.
The rewillbe either nooronl ya we ak cou rse-
corr ectingbra keapplica tionif:
R there arevehi cles orobsta cles,e.g.crash
barri ers,locatedonboth sidesof you r
vehi cle.
R avehi cleapp roache syou tooclose lyat the
side .
R you have adopted asporty drivingstyle with
high cornering speeds.
R you clearlybrake oraccel erate.
R adrivi ngsafe tysys tem intervenes, e.g.
ESP ®
or PRE-SAFE ®
Brake.
R ESP ®
is swi tched off.
R the off-road programisswitched on.
R aloss oftire pressure oradefective tireis
detected.
Switching onActive BlindSpotAssist
X Make surethattheradar sensor system
(Y page 236)andActive Blind SpotAssist
(Y page 232)areactivated inthe on-board
computer.
X Turn theSmartKey toposition 2in the
ignition lock.
Warning lamps:light upred inthe
exterior mirrorsforapproximately 1.5
seconds andthen turnyellow. Tra
iler towing
When youattach atrailer, makesureyouhave
correct lyestablished theelectrical
conn ection. Thiscanbeaccomplished by
checkin gthe trailer lighting. ActiveBlind Spot
Assist isthen deactivated. Theindicator lamp
lights upyell owinthe exterior mirrorsandthe Active
BlindSpotAssist Currently Unavailable
SeeOperator's Manual message
appearsinthe multifunction
displa y.
Active LaneKeeping Assis t Importa
ntsafety notes
Act iveLane Keeping Assistmonitors thearea
in front ofyour vehicle bymeans ofacamera
at the top ofthe windshiel d.Act ive Lane
Keeping Assistdetects lanemarkings onthe
road andwarns youbefore youleave your
lane unintent ionally.Ify ou do not react tothe
warning, alane-cor rectingapplication ofthe
brakes canbring thevehicle backintothe
original lane. :
Active Lane Keeping Assistcamera
If you have selected the Display
Unit Speed-/Odome
ter (Y
page 233)functionin
the on-board computer andselect km as
the
unit ofmeasurement, Active Lane Keeping
Assist isactive fromspeeds of60 km/ h.If
the miles display
unitisselected, the
assistance rangebegins at40 mph. G
WARNIN
G Act
ive Lane Keeping Assistdoesnotkeep
your vehicle inits lane. Itis only anaid and Driving
systems
205Driving and parking
Z
Page 208 of 396

may
detect thelane markings onthe road
incorrectly ornot atall.
The system maybeimpa iredormay not
function if:
R severa lor no lane markings forasingle lane
are present.
R there ispoor visibility, e.g. due to
insuffi cientillumina tionofthe road, ordue
to snow, rain,fogorspray .
R there isgla re, e.g. from oncoming traffic,
the sun, orreflection fromother vehicles.
R the winds hieldis dirty, fogged upor
covered, forinstance byasticker, inthe
vicinity ofthe camera .
R the lane markings areworn away,dark or
covered up,e.g. bydirt orsnow.
R the dista ncetothe vehicl ein front istoo
smal land thelane markings thuscannot be
detected.
R the lane markings onthe road areunclea r,
e.g. near roadw orks.
R the lane markings changequickly, e.g.
lanes branch off,cross oneanother or
merge.
R the road isnarrow andwindi ng.
Active LaneKeepi ngAssist cannot detect
road andtraffic conditions. Itis not a
subs titute forattentive driving.You are
responsi bleforthe vehicl e'sspeed ,braking in
good time, andsteering correctly. Always
ada ptyou rdriving styletosui tthe prevailing
road andweather conditions .Always pay
att ent ion totraffic condition sand your
surro undin gs.Oth erwise, youmay failto
rec ogn izedanger sin tim e,cause anacc ident
and injure yourself andothers.
War ning vibration inthesteer ingwheel
A warnin gcan begiven when afro ntwheel
passes overalane mark ing.You willbe
warned bymean sof intermit tentvibrat ionin
the steerin gwheel forupto1.5s econ ds.
In order thatyouarewarned onlywhen
nec essary andingood timeifyou cross the lane
markin g,the system recognizescertain
con ditions andwarns youaccor dingly.
The warning vibration occursearlier if:
R you approach theouter lanemarkin gon a
bend.
R the road hasvery wide lanes, e.g.a
freeway.
R the system recognizessolid lanemarkin gs.
The warning vibration occurslater if:
R the road hasnarrow lanes.
R you cutthe corn eron abend.
Lane-corr ectingbrakeapp lication
If you leave yourlaneunder certain
circ umstan cesthevehicle willbrake briefly
on one side. Thisismeant toassist youin
bringin gthe vehicle backtothe original lane.
This functionisavailable inthe range between
40 mph and120 mph (60km/ hto
200 km/h).
A lane-c orrectingbrake application canonly
be made afterdriving overasolid,
recogn izablelanemarkin g.Befor ethis, a
warning mustbegiven bymeans of
int ermit tentvibrat ioninthe steerin gwheel.
In additio n,alane with lanemark ingsonbot h
sides mustberec ogn ized. Thebrak e
applicat ionalso slight lyreduc esvehic le
speed.
If alane- correctingbrak eapplicat ionoccurs,
the followin g,for exam ple,appears inthe
mult ifunc tiondisplay: i
A
furt her lane- correctingbrak e
applicat ioncan only occurafteryour
vehic lehas returne dto the origin allane. 206
Driving
systemsDriving and parking
Page 209 of 396

G
WARNING Active
LaneKeepi ngAssist doesnotkeep
you rvehicle inits lane. Itis only anaid
designed toassist driving. Itis not asubstit ute
for atten tivedriving. Insome cases, thelane-
corr ecting brake application isnot sufficien t
to bring yourvehicle backtothe original lane.
In such cases, youmust steer thevehicle
yourself toensure thatitdoes notleave the
lane.
Act ive Lane Keeping Assistdoesnotdetect
road andtraff iccon ditions .Always makesure
that thereissuffic ientdistanceto the side for
oth ertraffic orobst acles. Inrare cases ,
unc lear mark ingsorpart icular struct ures on
the roadway canberec ogn ized assolid lane
mark ings.Aninap propriate brakeapplica tion,
e.g .after intentional lydrivi ngover asoli dlane
marking, maybeinterrup tedatany time by
steering slightly inthe oppo sitedirection.
Active LaneKeepingAssist cannot take
wea ther conditio nsinto accou nt.
You arerespo nsiblefor the drivi ngat
app ropri atespee ds,braki ngingood time, and
steering correctly .Always adapt yourdrivin g
style tosuit theprev ailing roadandweathe r
con dition s.Always payattent ion totraffic
con dition sand your surro undin gs.Oth erwise,
you may failtorec ogn izedanger sin tim e,
cause anacc ident andinjure yourself and
oth ers.
No lane- correctingbrak eapplication occurs
if:
R you clearly andactiv elysteer ,brake or
acceler ate.
R you cutthe corn eron asharp bend.
R you switc hon the turn signals.
R adrivin gsafety system interven es,e.g.
ES P®
,PRE-S AFE®
Brak eor Active Blind
Spot Assist .
R you have adopted asport ydrivin gstyle with
high cornering speeds orhigh rates of
acceler ation. R
on vehicles withatrailer towhitch,the
elect ricalconnection tothe trailer hasbeen
corr ectlyestablished.
R ES P®
is switc hedoff.
R the tran smission isnot inposition D.
R the off-road program isswitc hedon.
R aloss oftire pressure oradefect ivetire has
been detec tedand displayed.
Ac tive Lane Keeping Assistdoesnotdetec t
traf ficsituation sor road users. An
inappropriat ebrake application maybe
int errupt edatany time ifyou:
R steer slightly inthe opposite direction.
R use aturn signal.
R clearly brakeoracceler ate.
Al ane -corr ect ing brak eapplic ationis
int errupt edautom atically if:
R adrivin gsafet ysyst eminterve nes,e.g.
ES P®
,PRE- SAFE®
Br ake orActiveBlin d
Spot Assist.
R lane mark ingscannolong erbe rec ogn ized.
Switch ingonActive LaneKeeping Assist X
Swit chon ActiveLane Keepin gAss istusing
the on-board computer ;to do so, selec t Stan
dard or Adap
tive (Y
page 233).
Symbo l: appears inthe mult ifunc tion
display.
If Stan
dard is
selec ted,nowarnin g
vibrat ionoccurs if:
R you switc hon the turns ignals .Int his
event, thewarnings aresuppressed fora
certain periodoftime.
R adriving safetysystem interven es,such
as ABS ,BAS orESP ®
.
If Adaptive is
selected, nowarning
vibration occursif: Driving
systems
207Driving and parking Z
Page 211 of 396

control
,cau sing anacci dent and/or serious
per sona linju ryto youand othe rs.Do not
swi tch onDSR inasitu ation whe rerap id
dece lerati oncou ldresu ltin alos sof vehi cle
control .
DSR control sthe setspeedwhe nitisactive
and theautomatic transmission isin the D,
R or Nposition. Youcandrive atahigher or
a lower speed thanthatsetonthe on-board
computer atany time byaccelerating or
braking. G
WARNING If
you depress theaccelerator pedalwithDSR
activated, thevehicle candrive faster thanthe
programmed setspeed. Youshould therefore
drive downhill withparticular cautionasit
could leadtoan accident and/orserious
injury toyou orothers. Keepinmind thatas
soon asyou remove yourfootfrom the
accelerator pedalwithDSR switched on,DSR
will start regula tingthevehicle's speed
including useofbrakes ifrequired. Depending
on the programmed setspeed, actualvehicle
speed andgradient, DSRcancause the
vehicle toslow down rapidly.Sudden and
unexpected deceleration canresult inloss of
vehicle control,causing anaccident and/or
serious personal injurytoyou and others.
For information ondriving off-road, see
(Y page 162).
Activating/deac tivatingDSR Activating
You
canonly activate DSRifyou aredriving
at 25 mph (40km/h) orslower. X
Press button :.
Indicator lamp;lights up.
The followi ngmessages appearint he
multifunction displayand inthe status
indicator, forexample: If
the driving speedistoo fast, theDSR
symbol andthe Max.
Speed 25mph (Canada
: 40
km/h )
message appearint he
multifunction display. i
You
cannot activate DSRifthe SPORT on-
road program isactivated. TheDSR symbol
and the Not
inDrive Program SPORT message
thenappea rint he multifunction
displa y.
Deactivating
X Press button :.
Indicator lamp;goes out.
The DSR symbol appearsinthe
multifunction displaywith the Off
message.
DSR isdeactivated automatically ifyou are
driving fasterthan30mph (Canada :
45 km/h). TheDSR symbol appearsinthe
multifunction displaywith the Off message.
Stat usindicator =goes out.Youalso hear a
warning. Off-r
oaddriving systems
209Driving and parking Z
Page 212 of 396

Cha
nging theset speed When
DSRis act ivat ed, theset spee dcan be
ch ang edtoavalue between 1mphand
10 mph (Canada: between2km/ hand
18 km/ h)during thejourn ey. X
To increase ordecreas ethe setspeed
in 1mp h(Canada :1k m/h )
in cre men ts:pre ssthe cruise contr ollever
to the point ofres istanc ebri efly
up wa rds :for ahi gh er sets peed orbriefly
downwards ;for alower setspeed.
The setspeed appears inmultifun ction
display ?and isshown instat usindicat or
=. i
The
setspeed alsochang esin1m ph
(Canada: 1km/ h)incr ement sif you press
the controllever beyond thepoint of
resist ance. Tr
ailer towing Not
eson towing atrail er
Imp orta ntsaf ety notes G
WA
RNI NG Wh
entow ingatra iler, inco rrectequipme nt
and driving stylecou ldcauseyo uto lose
contr olof the vehicle.
To wing inco rrectly ornot observi ng this
Op era tor' sMa nua lcou ldlead todama geto
the vehicleand /or seriou sinju ries .O bserve
the following guidelines toensure safetrailer
towing . Contac
ta Mercedes -BenzCenter ifyou need
furt her explanat ionofthe infor mation
con tained inthis Operator 'sManual. G
WARN
ING Using
aball coupling otherthantheone
delivered withthevehicle mayplace toomuch
str ain onthe trailer towhitch.This applies
especially ifthe ball coupling inquestion is
longer orangled differen tly.Asaresult, the
vehicle maybedamaged andthetrailer may
come loosewhiledriving .Handl ing
ch arac terist ics may beimpair edand therear
axle may beove rload ed.This couldlead toan
acc iden twith serious oreven fatalinj uries.
There fore,please observethe followin g:
R only installthe ball couplin gdelivered with
the vehicle.
R make surethattheball coupling iscorr ectly
inst alled andsecured beforedriving.
R do not make anymodificat ionstothe ball
coupling orthe trailer towhitch . G
WARN
ING When
backin gup the vehicle towards the
trailer, makesurethere isnobody between
the trailer andthevehicle.
Couple anduncouple thetrailer carefully. If
you donot couple thetrailer tothe towing
vehicle correctly,the trailer couldbecome
detached.
Make surethatthefollowing valuesarenot
exceeded:
R the permissible trailerdrawbar noseweight
R the permissible trailerload
R the permissible rearaxle load ofthe towing
vehicle
R the maximum permissible grossvehicle
weight ofboth thetowing vehicle andthe
trailer
You willfind theapplicable permissible
values, whichmustnotbeexceeded, inthe
vehicle documen ts. 210
Tr
ailer towingDriving and parking