2021 MERCEDES-BENZ METRIS park assist

1
Cup holde rs →
75
Ashtr ay →
76
2 Combination swit ch→
78
3 PARKTRONI Cwarning displa ys→
12 2
4 Adjusts thes teering wheel
St eering wheel gearshif tpad‐
dles →
106
Horn
5 Instrument clu ster →
13 6
6 DIRECT SELEC Tlever →
104
7 Center console operatin gunit
8 Inside rearvie wmirror
9 Overhead control panel
Interior lamp →
80
A Glo vebox →
75 B
Storag ecompartment
12 Vsocket →
76
Cigar ette lighter →
76
C Ignition lock →
97
D Diagnostics connection →
17
Opening theh ood →
176
E Applies thep arking brake →
109
F Releases thep arking brake →
109
G Light switch →
77
H Switc hpanelford riving sys‐
te ms:
Ç LaneKeeping Assist →
12 9
é Switches PARKTRONIC
on/off →
12 2
I Cruise control le ver→
11 5 6
Atag lanc e–Cockpit

1
00BB ESP®
OFF →
261
2 0057 Highbeam →
78
3 00E5 ESP®
→
261
4 003E003D Turn signal lights →
78
5 0049 Parking brak e(US Ao nly) →
109
0024 Parking brak e(Canada
only) →
109
6 0027 Brakes (US Aonly) →
261
004D Brakes (Canada only) →
261
7 00CC Powe rsteering →
265
8 00DF ABS →
261
9 003D Powe rsupp ly →
251
A 003E Doors →
265
B 0075 Restra int sy stem →
261 C
00E9 Seat belt →
264
D 00B9 CheckEngine →
265
E 00AC Coolant →
265
F 005E Rear fogl ight →
77
G 005A Foglights →
77
H 0077 Tire pressur emonitoring
sy stem →
268
I 00AD ATTENTION ASSIST →
127
J 00D4 Reser vefuel →
265
K 0058 Lowb eam →
77
L 0060 Parking lamps and
license plat elamp →
77
Cor responding messages may
also be shown on them ulti‐
function displa y. →
235 At
ag lanc e–I ndicator and warning lamps (vehicle swithout steering wheel buttons) 7

traf
fica nd inter vene if necessa ry.Bea wareofthe
limitation sregarding thes afeu se of these sys‐
te ms.
If yo uf ail toadap tyour driving style, thed riving
sy stems can neither reduce ther isk of accident
nor override thel aws of ph ysics. The road and
we ather condition saswell asthet raffic situation
canno talway sbet aken in toaccount. In
fo rm ation on vehicl esensor sand cameras Some driving and driving saf
etys ystems use
camera sand radar or ultrasonic sensor stomoni‐
to rt he area in front of, behind or next tothev ehi‐
cle. 1
Multifunction camera
2 Ultrasonic sensors
3 Rear vie wcamera
% Depending on
thev ehicle's equipment, the
ra dar sensor sareintegrated on thes ide of
th er ear bumper sand/or behin dthe
Mercedes star in ther adiator grill. &
WARNING Risk of accident du eto
re stricted de tection per form anc eofv ehi‐
cle sensor sand cameras
If th ea reaa round vehicle sensor sorcameras
is co vered, damaged or dirty ,certain driving
and saf etys yst ems cann otfunction cor rectly.
The reisar isk of an accident. #
Keep thea reaa round vehicle sensor sor
cameras clear of an yobstructions and
clean. #
Have damag etothe bumper ,radiator
grille or stone chipping in thea reaof th
ef ront and rear wind owsrepaired at a
qu alified specialis tworks hop. Ke
ep thea reas of thec amera sand sensor sfree
of dirt, ice and slush (/ page184). The sensors
and cameras and their de tection area smustn ot
be co vered. Do no tattac hadditional license plate
holders, advertisin gmedia, sticke rs,foils or stone
pr otection foils in thed etection rang eoft he sen‐
sor sand cameras. Ensur ethat no pr otru ding load
ex tends int othe de tection area.
In thee vent of damage, or following aseve re
impact ,have thef unction of thes ensor schec ked
at aq ualified specialis tworks hop. Ha vedamage
or stone chips in thea reaoft he cameras
re paired at aqualified specialis tworks hop. Overvie
wofdriving sy stems and driving
saf etys ystems In
this section, youw illfind information abou tthe
fo llowing driving sy stems and driving saf etys ys‐
te ms:
R ABS ( Anti-lock BrakingSystem)
(/ page111 )
R BAS(Bra ke Assist System) (/ page111 )
R ESP ®
(Ele ctronic Stability Program)
(/ page111 )
R EBD ( Electronic Brakeforce Distribution)
(/ page113 )
R ActiveB rake Assi st (/ pag e113 )
R Cruis econt rol(/pa ge115)
R ActiveD ista nce Assi stDISTRONIC
(/ page 116)
R Hill star ta ssis t(/pag e120)
R HOLD function (/ page121 )
R Parking Assis tPARKTRONIC (/ page 122)
R Rear vie wcamer a(/ pag e123)
R ActiveP arking Assis t(/pag e125)
R ATTENTION ASSIS T(/ pag e127)
R Blind Spo tAssis t(/pag e129)
R Lane Keeping Assis t(/pag e129) 11 0
Driving and pa rking

ESP
®
Crosswind Assi stdoes no treact under the
fo llowing conditions:
R The vehicle is subjected tosevere jolts and
vib rations, e.g .asar esult of une vens urfaces
or po tholes.
R The vehicle loses traction, e.g. on sno worice
or when hydroplaning. Fu
nction of ESP ®
trailer stabilization &
WARNING Risk of accident in poo rroad
and weather conditions
In poor road and weather conditions, the
traile rstabilizatio ncanno tpreve nt lu rching of
th ev ehicle/trailer combination .Trailer sw ith
ah igh cen terofg ravity ma ytipove rbefore
ESP ®
de tects this. #
Alwaysa dap tyour driving styletos uit
th ec urrent road and weather condi‐
tions. ESP
®
trailer stabilizatio ncan stabiliz eyour vehi‐
cle when driving wit hatrailer if it starts to
swer ve:
R Ifth es ystemd etects thet railer ,ESP ®
trailer
st abilizatio nisactivated from aspeed of
appr oximately 40 mph(65 km/h).
R Slight swerving from side toside is reduced
by atarge teda nd one-sided brak eapplica‐
tion.
R If se vere swerving from side toside occurs,
engine output is also reduced and all the
wheels ar ebrake d. Fu
nction of EBD (electronic brak eforce distri‐
bution) EB
Dh asthef ollowing characteristics:
R monitoring and controllin gthe braking force
on ther ear wheels
R impr oving driving stabilizatio nwhen braking,
especiall yonb ends Fu
nction of Activ eB rake Assi st Ac
tiveB rake Assi stconsi stsoft hefollowing func‐
tions:
R Distance warning function
R Autonomous braking function
R Situation-dependent brak eforce boosting Ac
tiveB rake Assi stcan hel pyou tominimize the
ri sk of acollision wit hvehicles, cyclists or pedes‐
trians, or reduce thee ffects of suc hacollision.
If Ac tiveB rake Assi sthas de tected arisk of colli‐
sion, awarning tone sounds and theL warn‐
ing lam plight supint he instrument clus ter.
If yo udon otreact tothew arning, autonomous
brakin gcan be initiated in critical situations .In
especiall ycritical situations ,Activ eBrake Assi st
can initiat eauton omous braking di rectl y.In this
case, thew arning lam pand warning tone occur
simul taneously wi th thebraking application.
If yo ua ppl ythe brak eyourself in asituation
de tected as critica lbyActiveBrake Assi st,or
appl ythe brak eduring autonomous braking, sit‐
uation-dependent brak eforce boosting occurs.
The brak epressur eincreases up tomaximum
full-s topb raking if necessar y.
If autonomous braking or asituation-dependent
braking boosting ef fect has occu rred, the L
wa rning lam pflashes briefly and then goes out. &
WARNING Risk of an accident caused by
limited de tection per form anc eofA ctive
Brak eAssist
Ac tiveB rake Assi stcanno talway sc lea rly
identify object sand comple xtraf fics itua‐
tions. #
Alwaysp aycareful attention tothet raf‐
fi cs ituation; do no trelyo nA ctiv eBrake
Assi stalone. ActiveB rake Assi stis only
an aid. The driver is responsible for
maintaining asufficiently saf edista nce
to thev ehicle in front, vehicle speed
and forb raking in good time. #
Be prepare dtobrake or swer veif nec‐
essar y. %
If
th es ystemisn otavailable, an appropriate
messag eappear sinthe multifunction dis‐
pla y.
Obser vethes ysteml imitations of ActiveB rake
Assi st.D ue tothen atur eoft he sy stem, complex
but non-critical driving conditions ma yalso cause
Ac tiveB rake Assi stto inter vene du ring braking.
The individua lsubfunctions ar eavailable in
th ef ollowing speed ranges:
Distance warning function Driving and parking
11 3

The dis
tance warning function warnsy ou in the
fo llowing situations:
R From aspeed of appr oximatel y4mph
(7 km/h), if your vehicle is critically close to a
ve hicle or pedestrian. An intermittent warning
to ne sounds and theL warning lam pin
th ei nstrument clus tert hen lights up.
Brak eimmediatel yortakee vasiv ea ction ,provi‐
ded it is saf etodosoa ndthet raffic situation
allo wsthis.
The dis tance warning function can aid youint he
fo llowing situations wit hanintermit tent wa rning
to ne and awarning lamp:
R Vehicles tr aveling in front: uptoappr ox‐
imatel y155 mph(250 km/h)
R Stationar yvehicles: uptoappr oximately
50 mph(80 km/h)
R Cros sing vehicles: noreaction
R Moving pedestrians/cyclists ahead: upto
appr oximately 50 mph(80 km/h)
R Crossing cyclists: uptoappr oximately
37 mph(60 km/h)
R Stationar ypedestrians: noreaction
Au tonomous braking function
The autonomous braking function ma yinter vene
at speed sstartin gf roma pproximately 4mph
(7 km/h) in thef ollowing situations:
R Vehicles tr aveling in front: uptoappr ox‐
imately 125m ph (200 km/h)
R Stationar yvehicles: uptoappr oximately
31 mp h(50 km/h)
R Cros sing vehicles: noreaction
R Cyclists ahead: uptoappr oximately 50 mph
(80 km/h)
R Moving pedestrians/crossing cyclists: up
to appr oximatel y37m ph (60 km/h)
R Stationar ypedestrians: noreaction
Situation-dependent brak eforce boosting
Situation-dependent brak eforce boosting may
inter vene at speed sstartin gf roma pproximately
4m ph (7 km/h) in thef ollowing situations:
R Vehicles tr aveling in front: uptoappr ox‐
imatel y155 mph(250 km/h)
R Stationar yvehicles: uptoappr oximately
50 mph(80 km/h)
R Cros sing vehicles: noreaction R
Cyclists ahead: uptoappr oximatel y50m ph
(80 km/h)
R Moving pedestrians/crossing cyclists: up
to appr oximately 37mph(60 km/h)
R Stationar ypedestrians: noreaction
Canceling abrake application of Activ eB rake
Assi st
Yo uc an cancel abrak eapplicatio nofActive
Brak eAssistat an ytimeb y:
R Fully depressin gthe accelerator pedal or with
kickdown.
R Releasing theb rake pedal.
Ac tiveB rake Assi stma ycancel theb rake applica‐
tion when one of thef ollowing condition sisfulfil‐
led:
R Youm aneuver toavo idtheo bstacle.
R Thereis no longer arisk of collision.
R An obs tacle is no longer de tected in front of
yo ur vehicle.
Sy stem limits
Fu ll sy stem per form anc eisn otavailable foraf ew
seconds af ters witching on thei gnition or af ter
driving off.
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing situations:
R In sno w,rain, fogorh eavy spr ay.
R Ifth es ensor saredirty ,fogged up, damaged
or co vered.
R Ifth es ensor sareimpaired due tointer fer‐
ence from other radar sources, e.g. strong
ra dar reflection sinparking garage s.
R Ifal oss of tir epressur eoraf aulty tir ehas
been de tected and displa yed.
R In comple xtraffic situation swhere objects
canno talway sbec learly identified.
R If pedestrians or vehicles mo vequickl yinto
th es ensor de tection range.
R If pede strians ar ehidde nbyo ther objects.
R Ifth et ypical outline of apedestrian cann otbe
distinguished from theb ackg round.
R Ifap edestrian is no tdetected as such, e.g.
due tospecial clo thing or other objects.
R In cur vesw ithan arrow radius.
Fo llowing damag etothe front end of thev ehicle,
ha ve thec onfiguration and operation of ther adar
sensor checkedataq ualified specialis twork‐ 11 4
Driving and pa rking

shop. This also applies
tocollisions at slow
speeds whe rether eisnov isible damag etothe
front end of thev ehicle. Setting
Activ eB rake Assi st On-boar
dcomputer:
4 DriveAssist 5
Active Brake Assist #
Select thed esired setting fort he warning/
re action tim eand press the0076 button.
The setting is retained when thev ehicle is
next star ted.
Deactivating Activ eB rake Assi st
% It is
recommended that ActiveB rake Assi stis
alw aysl efta ctivated. #
Select Offand press the0076 button.
The dis tance warning function and thea uton‐
omous braking function ar edeactivated. Also,
th es tatus appear sintheStatus overvie wof
the DriveAssist menu.
The next time thev ehicle is star ted, Ac tiveB rake
Assi stis automaticall yactivated wit hthe Medium
setting.
When ActiveB rake Assi stis activated, them ulti‐
function displa yshows the 00C7symbol.
At speeds up toappr oximately 20 mph
(30 km/h), them ultifunction displa yinvehicles
wit hA ctiv eParking Assis tfirst sho wsthe 005Dsta‐
tus indicator .Onlyf romas peed of appr oximately
20 mph(30 km/h) does them ultifunction display
sho wthe 005D symbol ins tead of the00C7 status
indicator. Cruise control
Fu
nction of cruise control
Cruise cont rola ccelerates and brakes thev ehicle
automaticall yinorder tomaintain apreviously
st ored speed.
If yo ua ccelerat etoovertake, fore xamp le,the
st ored speed is no tdele ted. If your emo veyour
fo ot from thea ccelerator pedal af tero vertaking,
cruise control will resume speed regulation back
to thes tore ds peed.
Yo uo perat ecruise control usin gthe cruise con‐
trol le ver.Yo uc an stor ea nyspeed abo ve20 mph
(30 km/h).
Obser vethen otes on driving sy stems and your
re sponsibility ,otherwise youc anno trecognize
danger s(/ page 109). Sy
stem limits
Cruise control ma ybeunable tomaintain the
st ored speed on uphill gradients. The stored
speed is resumed if theu phill gradient evens out
and thev ehicle's speed does no tfall below
20 mph(30 km/h).
On long and steep downhill gradients, yous hould
ch ang edowntoa lowe rgear in good time. Take
particular no teofthis when driving aladen vehi‐
cle. By doing so, youw ill mak euse of the
engine' sbraking ef fect. Thi swillt ak es ome of the
st ra in of fthe brak esystem and pr eventthe
brakes from overheating and wearing tooq uickl y.
If yo uc hang ewheel siz eonyourvehicle, checkit
is assigned tothec orrect wheel size catego ry
( / pag e218). If thec ategor yischanged without
re coding thec ont rolu nit sint hevehicle, thef unc‐
tionin gofcruise cont rolm aybe impaired.
Do no tuse cruise control in thef ollowing situa‐
tions:
R in traf fics ituations whe refrequent speed
ch anges ar erequired, e.g. in heavy traf ficor
on winding roads
R off-road or on con stru ction sites
R on slippe ryor slic kroads, as thed rive wheels
can lose traction when accelerating and the
ve hicle can then skid
R ifth er eisp oor visibility
Operating cruise control
Requ irements
R Cruise control is selected.
R The parkin gbrake has been released.
R ESP ®
is activated, but ma ynotinter vene.
R The driving speed is at leas t20m ph
(30 km/h).
R The brak epedal is no tdepressed. Driving and parking
11 5

#
Turn controller 3in direction 2toinc rease
th es pecified minimum dis tance and in di rec‐
tion 1toreduce thes pecified minimum dis‐
ta nce.
Ope ratin gA ctive Distance Assis tDISTRONIC
Re quirements
R The vehicle has been star ted. It ma ytakeup
to twom inutesofd riving befor eActiv eDis‐
ta nce Assi stDISTRONI Cisready foru se.
R The parking brak ehas been released.
R ESP ®
is activated and is no tinter vening.
R ActiveP arking Assis tisnotactivated.
R The transmissio nisinposition005B.
R The door sand tailgate/rear-en ddoor sare
closed.
R The driver's seat belt is fastened.
Switching between thel imiter and Activ eD is‐
tanc eAssis tDISTRONIC #
Press but ton6.
R LIM indica torlamp 3off: ActiveD is‐
ta nce Assi stDISTRONI Cisselected.
R LIM indica torlamp 3lit:t he variable lim‐
iter is selec ted.
Ac tivatin gActive Distance Assis tDISTRONIC #
Toactivat ewiththec urrent speed: briefly
press thec ruise cont rolleve rbriefly up 1or
down 5and take your foot offt he accelera‐
to rp edal.
The cur rent speed is stored and shown on the
speedome ter.As in thea ssis tance graphic
menu ,the multifunction displa ybrief ly sho ws
th es etspecified dis tance and thes tored
speed.
or #
Toactivat ewiththes tore ds peed: pullthe
cruise control le verb riefly in direction 4and
ta ke your foot offt he accelera torp edal.
The speed is displa yedont he speedome ter.
As in thea ssis tance graphi cmenu ,the multi‐
function displa ybrief ly sho ws th esetspeci‐
fi ed dis tance and thes tore ds peed.
% Ve
hicles wit hTraffic Sign Assis t:thes peed
de tected byTraf ficS ign Assi stcan be se tby
pulling thel eve rind irection 4.
% Yo
uc an find information on DISTRONIC dis‐
pl ay su nder "Displa ysofActiveD ista nce
Assi stDISTRONIC" (/ page 120).
If yo udon otfull yrelease thea ccelera torp edal,
the Active Distance Assist Suspended message
appear sonthe multifunction displa y.The dis‐
tan cetoas lowe r-moving vehicle in front will then
no tbes et.T he position of thea ccelera torp edal
willd etermine thes peed.
When youp ullthec ruise cont rolleve rtow ards
yo uf or thef irst time af ters tartin gt he vehicle,
Ac tiveD ista nce Assi stDISTRONI Cadoptst he
cur rent speed .Ifthe cur rent speed is less than
13 mp h(20 km/h ),Ac tiveD ista nce Assi st
DISTRONI Cadoptst he speed of 13mph
(20 km/h).
Pulling away again with Activ eD ista nce
Assis tDISTRONIC #
Remo veyour foot from theb rake pedal. #
Brief lypull thec ruise cont rolleve rind irection
4.
or #
Depress thea ccelerator pedal briefly with
fo rc e.
The functions of ActiveD istan ce Assi st
DISTRONI Ccontinue tobe car ried out.
Deactivating Activ eD ista nce Assist
DISTRO NIC &
WARNING Risk of an accident du eto
Ac tiveD istan ce Assi stDISTRONI Cbeing
acti vewhen youl eave thed rive r's seat
If yo ul eave thed rive r's seat while thev ehicle
is being braked byActiveD ista nce Assi st
DISTRONI Conly,the vehicle can rollaw ay. #
Alwaysd eactivat eActiv eDista nce
Assi stDISTRONI Cand secur ethe vehi‐
cle topreve nt it from rolling away before
yo ul eave thed rive r's seat. Driving and parking
11 9

R
ifth ec amera lens is co vered, dirty or fogged
up.
R if cameras, or vehicle components in which
th ec amera sareins talled, ar edamaged. Ha ve
th ec ameras, their position sand their setting
ch eckedataq ualified specialis tworks hop.
% The media displa
ycontra stma ybei mpaired
due todirect sunlight or other light sources.
In this case, pa yparticular attention.
% Ha
ve them edia displa yrepaired or replaced
if, fore xamp le, pixel er rors considerably
re strict its use.
% Objects that ar enotat ground le vela ppear
fur ther aw ay than they actuall yare.T his
includes, fore xamp le:
R theb umper of avehicle par kedb ehind
R thed rawbar of atrailer
R theb all nec kofat railer hitch
R thet ail-en dofat ruck
R slanted posts
Onl yusetheg uide lines of thec amer aimage
fo ro rientation. Do no ttrave lfur ther than the
lo west horizontal guide line when approach‐
ing objects. Youm ayotherwise damag eyour
ve hicle and/or theo bject. Ac
tiv eP arking Assist Fu
nction of Activ eP arking Assist
Ac tiveP arking Assis tisanelectronic pa rking
assis tance sy stem whic hautomaticall ylocates
and measures parking spaces on bo thsides of
th ev ehicle when youa redrivin gforwa rdsuptoa
speed of appr oximately 22 mph(35 km/h).
If al lrequirements ar emet,t he Ç display
appear sinthe multifunction displa y.The sy stem
th en independentl ylocates and measures parallel
and perpendicular parking spaces on bo thsides
of thev ehicle.
When ActiveP arking Assis thas de tected pa rking
spaces ,the È displa yappear sinthe multi‐
function displa y.The ar rowsshowonw hichs ide
of ther oad free parking spaces ar elocated.
Ac tiveP arking Assis tdispla ysparking spaces on
th ec o-driver side as standard. The parking
spaces on thed rive r's side ar eonlyd ispla yedif
yo uo perat ethe tur nsignal on thed rive r's side.
When parking on thed rive r's side, youm usto per‐
at et he tur nsignal until youh aves tarted active parking assis
tancebypressing the0076 steering-
wheel button.
Ac tiveP arking Assis tcan assis tyou wit han
activ esteering inter vention and brak eappli cation
du ring pa rking and exitin gthe parking space.
Ac tiveP arking Assis tisonlyana id. It is no ta
substitut efor your attention tothes urroundings.
Yo ua realw aysr esponsibl efor saf emaneu vering,
pa rking and exitin gap arkin gspace. Mak esure
th at no persons, animals or object setc. ar einthe
pat hofy ourvehicle.
Ac tiveP arking Assis tiscanceled in thef ollowing
cases, among others:
R Parking Assis tPARKTRONIC is deactivated.
R Yous teer.
R Youa ppl ythe parking brake.
R Parking using ActiveP arking Assis tisnolon‐
ge rp ossible.
R Youe xceed aspeed of 6mph (1 0km/h).
R Awheel spins and ESP ®
inter venes or fails.
R Youe ngag etransmission position 005D.
R Youo pen adoor or thet ailgate/rear-end
door ,oru nfasteny our seat belt, on vehicles
wit hana utomatic transmission.
PA RKTRONI Cisdeactivated fort he rear area
when youh aveat railer coupled up and es tablish
an electrical connection between your vehicle
and thet railer .Activ eParking Assis tisthen not
av ailable.
Sy stem limits
Object slocated abo veor belo wthe de tection
ra ng eofA ctiveParking Assis tare notd etected
when thep arking space is being measured. They
ar ea lso no ttaken in toaccount when thep arking
maneuver is calculated, e.g. overhanging loads,
ove rhangs or loadin gramps of truc ks,ort he
boundaries of parking spaces. In some circum‐
st ances, ActiveP arking Assis tmaytherefore
guide youi ntot he parking space prematurely. &
WARNING Risk of accident du eto
object slocated abo veor belo wthe
de tection rang eofA ctiveParking Assist
If th er ea reobject sabove or belo wthe de tec‐
tion range, thef ollowing situations ma yarise:
R ActiveP arking Assis tmaysteer tooe arly.
R The vehicle ma ynotstop in front of these
objects. Driving and parking
12 5