warning MERCEDES-BENZ METRIS 2016 MY16 Operator’s Manual

The intensity of warning lamps:depends on
the brightness of the ambient light and is con-
trolled automatically.
Collision warning
If av ehicle is detected in the monitoring range of
Blind Spot Assist and you switch on the corre-
sponding turn signal, adouble warning tone
sounds once. The warning lamp in the corre-
sponding exterior mirror flashes. If the turn sig-
nal remains on, detected vehicles are indicated
by the flashing of the warning lamp in the exte-
rior mirror. There are no further warning tones.
Activating Blind Spot Assist
XMake sure that Blind Spot Assist is activated
in the on-board computer (Ypage 184).
XTurn the key to position 2in the ignition lock.
The warning lamps in the exterior mirrors light
up for approximately 1.5 seconds.
Status indicators in the status overview submenu
If Blind Spot Assist is activated, the display
shows symbol :in the StatusOverviewsub-
menu of the on-board computer (Ypage 183). If
you are driving faster than 20 mph (30 km/h) ,
the symbo lalsos hows rada rwaves between the
two vehicles ;.Blind Spo tAssist is thenr eady
for use.
Towin gatrailer
If youattach atrailer, make sure thaty ouhave
correctl yestablishe dthe electrical connection.
Thi scan be accomplishe dbychecking the trailer
lighting. Blind Spo tAssist is thend eactivated
and the Blind Spo tAssist Currently
Unavail. See Operator' sManualmessage
appear sinthe display.
Lane Keeping Assist
General notes
Lane Keeping Assist monitors the area in front of
your vehicl ebymeans of camera :which is
mounted at the top of the windshield. Lane
Keeping Assist detects lane markings on the
roa dand can warn yo ubefor ey ou leav eyour
lane unintentionally.
This functio nisa vailable in the range between
40 mph (60 km/h )and 125 mph (20 0km/h).
Aw arning maybeg iven if afront whee lpasses
ove ralanem arking. It will warn yo ubymeans of
intermittent vibratio nthroug hthe steering
whee lfor up to 1.5 second s.
Importan tsafety notes
GWARNING
Lane Keeping Assist may not always clearly
recognize lane markings.
In this case, Lane Keeping Assist may:
Rgive an unnecessary warning
Rnot give awarning
There is ariskofana ccident.
Alway spayparticula rattention to the traffic
situation and stay in lane, in particula rif
warned by Lane Keeping Assist.
GWARNING
The Lane Keeping Assist warning doe snot
return the vehicl etothe original lane. There is
ar iskofana ccident.
Yo us houl dalway ssteer, brake or accelerate
yourself, in particula rifwarned by Lane Keep-
ing Assist.
Driving systems147
Driving and parking
Z

If you fail to adapt yourdriving style, Lane Keep-
ing Assist can neither reduce the risk of accident
nor override the law sofphysics. Lane Keeping
Assist cannot take into account road, weather or
traffic conditions. Lane Keeping Assist is only an aid .You are responsible for the distance to the
vehicle in front, for vehicle speed,b raking in
good time and for staying in you rlane.
Lane Keeping Assist does not keep you rvehicle
in its lane.
The system may be impaired or may not function
if:
Rthere is poor visibility, e.g. due to insufficient
illuminatio nofthe road, or due to snow, rain,
fog or spray
Rthere is glare ,e.g. from oncoming traffic, the
sun or reflection from other vehicles( e.g. if
the road surface is wet)
Rthe windshield is dirty, fogged up, damaged or
covered, for instance by asticker, in the vicin-
ity of the camera
Rno, or several ,unclea rlane markings are pres-
ent for one lane, e.g. in aconstruction area
Rthe lane markings are worn away, dark or cov-
ered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too small
and the lane markings thus cannot be detec-
ted
Rthe lane markings change quickly, e.g. lanes
branch off, cross one another or merge
Rthe road is narrow and winding
Rthere are highlyv ariable shade conditions on
the road
Deactivating and activating Lane Keep-
ing Assist
XPress the Çbutton.
If the indicator lamp in the button lights up
and the display shows the Çsymbo linthe status area
,Lane Keeping Assist is switched
on but not ready for use.
If you drive at speedsa bove 40 mph
(60 km/h) and lane markings are detected,
the display shows the highlighted Çsym-
bol in the status area when Lane Keeping
Assist is activated. Lane Keeping Assist is
then ready for use.
Status indicators in the status overview submenu
The display in the Status Overviewsubmenu
of the on-board computer also shows the status
of Lane Keeping Assist (
Ypage 183). If Lane
Keeping Assist is activated but not ready for use,
the display shows the boundary lines in the sym-
bol as dashed :.IfLane Keeping Assist is ready
for use, the boundary lines in the symbo lare
shown as solid lines ;.
Setting the sensitivity of Lane Keeping
Assist
XIn theAssist.menu on the on-board com-
puter, select the Lane Keeping Assist:
function (Ypage 184).
XSelectStandardorAdaptive.
In the setting Standard
,now arning vibration
occurs if:
Ryou operate the turn signal in the correspond-
ing direction. In this event, the warnings are
suppressed for acertain period of time.
Rad riving safety system, such as ABS, BAS or
ESP®,i ntervenes or performs acontrol
action.
When Adaptive
is selected, there is also no
warning vibratio nwhen:
Ryou accelerate hard, e.g. kickdown.
Rbrake sharply
Ryou steer actively ,e.g. swerve to avoid an
obstacle or change lanes quickly.
Ryou cut the corner on asharp bend.
In order that you are warned only when neces-
sary and in good time if you cross the lane mark-
148Driving systems
Driving and parking

ing, the system recognizes certain conditions
and warns you accordingly.
The warningvibration occurs earlier if:
Ryou approacht he outer lane marking on a
bend.
Rthe road has very wide lanes, e.g. afreeway.
Rthe system recognizes solid lane markings.
The warnin gvibration occurs later if:
Rthe road has narrow lanes.
Ryou cut the corner on abend.
Alertness Assistant ATTENTION
ASSIST
General notes
ATTENTIONA SSISTh elps you duringl ong,
monotonous journeys such as on freeways and
interstate highways. It is active in the 40 mph
(60 km/h) to 125 mph (200 km/h )range. If
ATTENTIONA SSISTd etect stypical indicator sof
fatigue or increasingl apses in concentration on
the part of the driver, it suggestst akingabreak.
Important safetyn otes
ATTENTIONASSISTiso nly an aid. The system
may not always detect fatigue or lapses in con-
centration until too late, or may not detect them
at all. ATTENTIONA SSISTisn otas ubstitut efor
aw ell-rested and attentive driver.
The functionality of ATTENTIONA SSISTi s
restricted, and warnings may be delayed or not
occur at all:
Rif the lengt hofthe journey is less than approx-
imately 30 minutes
Rif the road condition is poor, e.g. if the surface is uneven or if there are potholes
Rif there is astrong side wind
Rif you have adopte dasportyd rivings tyle with
high cornering speeds or high rate sofaccel-
eration
Rif you are predominantly drivingatas peed
below 40 mph (6 0km/ h)or above 125 mph
(200 km/h)
Rif the tim ehas been set incorrectly
Rin active drivings ituations,such as when you
change lanes or change your speed ATTENTIONA
SSISTisr eset and starts assessing
your attention again when you continue your
journey if:
Ryou switc hoff the engine
Ryou tak eoff your seat belt and open the driv-
er's door, e.g. for achange of drivers or to
tak eab reak
Displaying th eattention level
For vehicles with steeringw heel buttons you can
have the current ATTENTIONA SSIST( Attention
Level) assessmentd isplayed.
XSelectStatus Overviewin theAssist.menua nd display the attention level
(Ypage 183).
The followingi nformation is displayed:
Rthe lengthofthe journey sinc ethe last break
Rthe attention level determined by ATTENTION
ASSIST, displayed in abar display in five levels
froml ow to high
Rif ATTENTIONA SSISTisu nable to calculate
the attention level and cannot output awarn-
ing, the System
Passivemessage appears in
the display. The bar display is the ndimmed.
This is the case, for example, if you are pre-
dominantly drivingatas peed below 40 mph
(60 km/h) or above 125 mph (200 km/h).
Activating ATTENTION ASSIST
XActivatin gATTENTIONA SSISTw ith the on-
board computer:
Ron vehicles without steeringw heel buttons
(Ypage 174)
Ron vehicles with steeringw heel buttons
(Ypage 184)
For vehicles with steeringw heel buttons,the
system determines the attention level of the
driverd epending on the settin gselected:
Driving systems149
Driving and parking
Z

Standard:the sensitivity with which the sys-
tem determines the attention level is set to
normal.
Sensitive: the sensitivity is set higher. The
driver is warned earlier.
When ATTENTION ASSIST is switched on and
the vehicle engine is running:
Ron vehicles without steering wheel buttons,
the À indicator lamp in the instrument
cluster lights up
Ron vehicles with steering-wheel buttons, the
display shows the Àsymbol:
-in the status area
-in the Status Overviewof the Assist.menu (Ypage 183)
For vehicles with steering wheel buttons, if you
deactivate ATTENTION ASSIST, the system is
automatically re-activated when you start the
engine. The system sensitivity then corresponds to the last selection activated –standard or sen-
sitive.
If you switch off ATTENTION ASSIST in avehicle
without steering wheel buttons, the system
remains switched off even after you start the
engine. The status of the system after switching
on the engine always corresponds to the status
last selected.
Warning in the display
If the system detectst iredness or increasing
lapses in concentration, the warning Atten‐
tion Assist: TakeaBreak!orAttent.Asst: Take Break!is shown in the display.
An additional warning tone sounds.
XIf necessary, take abreak.
XConfirm the message by pressing the a
button on the steering wheel.
On long journeys, take regular breaks in good
time to allow yourself to rest. If you do not take
ab reak and ATTENTION ASSIST continues to
detect increasing lapses in concentration, you
will be warned again after 15 minutes at the
earliest. This will only happen if ATTEN-
TION ASSIST still detectst ypical indicators of
fatigue or increasing lapses in concentration.
PARKTRONIC
General notes
PARKTRONIC is an electronic parking aid. The
system is equipped with ultrasonic sensors in
the front and rear bumpers to monitor the area
around your vehicle. PARKTRONIC indicates vis-
uallya nd audibly the distance between your
vehicle and an object.
Your vehicle features two separate sound emit-
ters with different frequencies for the warning
tones. The warning ranges in front of and behind the vehicle are indicated by different warning
tones.
PARKTRONIC is activated automatically when
you:
Rturn the key to position 2in the ignition lock
Rrelease the parking brake and
Rmove the selector lever to D,Nor R
PARKTRONIC is deactivated at speeds above
11 mph (18 km/h). PARKTRONIC is reactivated
at speeds below 10 mph (16 km/h).
Important safety notes
PARKTRONIC is only an aid. It cannot replace
your own awareness of the immediate surround-
ings. You are responsible for safe maneuvering,
parking and pulling away.W hen maneuvering,
parking and pulling away,m ake sure that there
are no persons, animals or object sinthe maneu-
vering area.
!Pay particular attention to obstacles above
or below the sensors when parking, such as
flower pots or trailer towbars. PARKTRONIC
does not recognizes uch objectswhen they
are in the immediate vicinity of the vehicle.
You could damage the vehicle or objects.
PARKTRONIC can suffer interference from:
Rultrasonic sources such as atruck's
compressed-air brakes, an automatic car
wash or apneumatic drill
Rattachments to the vehicle, e.g. rear moun-
ted racks
Rnumber plates (vehicle license plates) that
are not affixed flat against the bumper
Rdirty or icy sensors
Remove adetachable trailer coupling if it is no
longer required. PARKTRONIC measures the
minimum detection range to an obstacle from
the bumper, not the ball coupling.
150Driving systems
Driving and parking

Rangeoft he sensors
PARKTRONIC doe snot account for obstacles
that are:
Rbeneath its detection range, e.g. persons,a ni-
mal soro bjects
Rabove its detection range, e.g. overhanging
loads, overhangs or truck loading ramps
The sensors mus tbefree of dirt, ice or slush.
Otherwise, they canno tfunction correctly.
Cleant he sensors regularly, taking care not to
scratch or damag ethem (
Ypage 257).
Front sensors
CenterApprox. 39 in
(100 cm)
CornersApprox. 24 in (60 cm)
Rear sensors
CenterApprox. 47 in
(120 cm)
CornersApprox. 31 in (80 cm)
Minimum distance
CenterApprox. 8in(20 cm)
CornersApprox. 8in(20 cm)
If an obstacl eiswithin this range, the corre-
sponding segments of the warning display slight
up and yo uhearaw arning tone. If the distance
falls below the minimum ,the distance from an
obstacl emay no longer be shown.
Driving systems151
Driving and parking
Z

Warning displays
Front area warning display in center of dashboard.
Reararea warning display on the dashboard
Rea rarea warning display in center of headliner in
rear compartment.
:
Warning segments for the left side of the
vehicle
;Warning segments for the right side of the
vehicle
=Segments showing operational readiness
The warning display sshow the distance
between the sensor and the obstacle.
The warning display is divided into five yellow
and two red segments for each side of the vehi- cle. PARKTRONIC is operational if operational
readiness indicator
=lights up.
There is amalfunction if only the red segments
of the warning display light up (
Ypag e154).
The selected transmission position determines
whethe rthe front and/or rear area is monitored.
Selector lever posi-
tionMonitoring
DFront area
R or NFront and rear area
PNo area sactivated
One or more segments light up as the vehicle
approache sanobstacle, depending on the vehi-
cle's distance from the obstacle.
From the:
Rsixth segment, an intermittent warning tone
sound sfor approximately 2seconds.
Rseventh segment, acontinuou swarning tone
sounds. This indicates that you have now
reache dthe minimu mdistance.
Roll-back warning
Regardless of transmission position,
PARKTRONIC automatically monitors the area
behind the vehicl eifthe vehicl ebegins to roll
backwards, e.g. after stopping on an uphill gra-
dient.
Activating/deactivating PARKTRONIC
XPress the fbutton.
If PARKTRONIC is deactivated, the indicator
lam pint he switch lights up.
152Driving systems
Driving and parking

Problems with PARKTRONIC
ProblemPossible causes/consequences andMSolutions
Only the red segments in
the PARKTRONIC warn-
ing displaysare lit.
Aw arning tone also
sounds for approx-
imately 2seconds.
PARKTRONIC is then
deactivated.
The indicator lamp of the
f button lights up
and the red segments in
the PARKTRONIC warn-
ing display go out.PARKTRONIC has malfunctioned and has switched itself off.
XIf problems persist, have PARKTRONIC checked at aqualified spe-
cialist workshop.
The PARKTRONIC warn-
ing displaysi mplausible
distances.
For example, all the seg-
mentsm ay be lit even
though there is no obsta-
cle present.The PARKTRONIC sensors are dirty or iced up.
XClean the PARKTRONIC sensors (Ypage 257).
XTurn the key to position 2again in the ignition lock.
The license plate or other parts attached near the sensors may not be
secured correctly.
XCheck the license plate and attachmentp arts near the sensors for
correct seating.
An external radio or ultrasonic source may be causing interference.
XCheck PARKTRONIC functions in adifferent location.
Active Parking Assist
General notes
Active Parking Assist is an electronic parking
aid. The system uses ultrasound sensors to
measure the road on both sides of the vehicle
and indicates suitable parking spaces. It can
then actively steer and brake the vehicle to help
you to park and exit the parking space.
Active Parking Assist includes the PARKTRONIC
parking aid which indicates visuallya nd audibly
the distance between your vehicle and an
object .Todot his, PARKTRONIC uses the ultra-
sonic sensors of the Active Parking Assist
(
Ypage 150).
Important safety notes
Active Parking Assist is only an aid. It is not a
substitute for your attention to the immediate
surroundings. You are responsible for safe maneuvering, parking and pulling away.M
ake
sure that no persons, animals or object sare in
the maneuvering range.
When you deactivate PARKTRONIC, Active Park-
ing Assist will also be deactivated.
For vehicles with atrailer coupling installed, the
minimum length for parking spaces will be
slightly increased.
If you have attached atrailer to your vehicle, you
should not use Active Parking Assist. Once the
electrical connection is established between
your vehicle and the trailer, Active Parking
Assist is no longer available. PARKTRONIC is
then deactivated for the rear area.
GWARNING
While parking or pulling out of aparking
space, the vehicle swings out and can drive
onto areas of the oncomingl ane. This could
result in acollision with another road user.
There is arisk of an accident.
154Driving systems
Driving and parking

Pay attention to other road users. Stop the
vehicle if necessary or cancel the Active Park-ing Assist parking procedure.
!If unavoidable, you should drive over obsta-
cles such as curbs slowly and not at asharp
angle. Otherwise, you may damage the
wheels or tires.
Active Parking Assist may also display spaces
not suitable for parking, e.g.:
Rin az onew here parking or stopping is pro-
hibited
Rin frontofd riveways or entrances and exits
Ron unsuitable surfaces
Parking tips:
Ron narrow roads, drive as closely as possible
past the parking space.
Rparking spaces that are littered or overgrown
might be identified or measured incorrectly.
Rparking spaces that are partially occupied by
trailer drawbars might not be identified as
such or be measured incorrectly.
Rsnowfall or heavy rain may lead to aparking
space being measured inaccurately.
Rpay attention to the PARKTRONIC warning
messages (Ypage 152) during the parking
procedure.
Ryou can intervene in the steerin gprocedure to
correctitata ny time. Parking assistanc ewill
then be canceled and Active Parking Assist
stopped.
Rwhen transportin gaload which protrudes
from your vehicle, you should not use Active
Parking Assist.
Rnever use Active Parking Assist when snow
chains are installed.
Ralwayse nsure that the tire pressure is cor-
rect.T his has adirect influenc eonthe parking
characteristics of the vehicle.
Use Active Parking Assist for parking spaces
that are:
Rparallel or at right angles to the direction of
travel.
Ron straight roads, not bends
Ron the same level as the road, e.g. not on the
pavement
Detecting parking spaces
GWARNING
If there are object sabove the detection range:
RActive Park Assist may steer too early
Rthe vehicle may not stop in frontoft hese
objects
You may cause acollision as aresult. There is
ar isk of an accident.
If object sare located above the detection
range, stop and deactivate Active Parking
Assist.
Objectsl ocated above the height range of Active
Parking Assist will not be detected when the
parking space is measured. These are not taken
into account when the parking procedure is cal-
culated, e.g. overhangin gloads, tail sections or
loading ramps of goods vehicles.
For further information on the detection range
(
Ypage 151).
Active Parking Assist does not assist you park-
ing in spaces at right angles to the direction of
travel if:
Rtwo parking spaces are located directly next
to one another
Rthe parking space is directly next to alow
obstacle such as alow curb
Ryou forward park
Active Parking Assist does not assist you park-
ing in spaces that are parallel or at right angles
to the direction of travel if:
Rthe parking space is on acurb
Rthe system reads the parking space as being
blocked, for example by foliage or grass pav-
ing blocks
Rthe area is too small for the vehicle to maneu-
ver into
Rthe parking space is bordered by an obstacle,
e.g. atree, apost or atrailer
Driving systems155
Driving and parking
Z

:Detected parkingspace on the left
;Parkin gsym bol
=Detected parkin gspace on the right
If the driver's sea tbeltisf astened and al ldoo rs
ar ec losed ,Activ eParkin gA ssist is activated
automaticall ywhend rivin gforwards .The sys-
tem is operational at speeds of up to approx-
imatel y22m ph (35 km/h). Whil einoperation,
the system independentl yloc ate sand meas-
ures parkin gspacesonb oths ides of the vehicle.
Activ eParkin gA ssist will onl ydetect parking
spaces:
Rparallel or at right angle stothe direction of
travel.
Rthata reparallel to the direction of travel and
ar eatl east59 in (1.5 m) wide
Rthatareparallel to the direction of travel and
at leas t40in( 1.0m) lo nger thany ourvehicle
Rthata re at right angle stothe direction of
travel and at leas t40in( 1.0 m) wider than
your vehicle
iNote thatA ctiveParking Assist cannot
measure the length of aparking space if it is at
right angle stothe direction of travel .You will
nee dtoj udge yourself whether your vehicle
will fit into the parking space.
When the vehicl eisdrivingats peeds of up to
approximately 20 mph (30 km/h), parking sym-
bol ;is shown as astatus dis
pla y
int he header.
The systemd etects and differentiate sbetween
parking space swhich ar eparalle loratr ight
angle stothe direction of travel .Whenap arking
space is detected, an arrow appear snext to
parking symbol ;to indicate which side the
parking space is on. The parking space is dis-
played whil eyou ared rivin gpastita nd unti lyou
ar ea pproximately 50 ft (15 m) awayfromi t.
Active Parkin gAssist display sparking spaces on
the passengers ideass tandard. The parking
spaces on the driver's side ar eonlyd isplayed if
yo uo perate the turn signalont he driver's side.
Whe nparking on the driver's side ,you must
operate the turn signalu ntilyou have started active parking assistance by pressing the
a
button on the steering wheel.
Parking
GWARNING
If yo uleave the driver's sea twhent he vehicle
is onlyb eing braked by Active Parking Assist,
the vehicl ecould rol lawa yif:
Rther eisam alfunctio ninthe system or in
the voltag esupply.
Rthe electrical system in the engine com-
partment, the battery or the fuses ar etam-
pered with.
Rthe battery is disconnected.
Rthe vehicl eisaccelerated,e .g.b yav ehicle
occupant.
There is ariskofana ccident.
Before leaving the driver's seat, always secure the vehicl eagain st rolling away.
If PARKTRONICd etects obstacles, Active Park-
ing Assist brakes automaticall yduring the park-
ing process. Yo uareresponsibl efor braking in
goo dtime.
XBring the vehicl esafelytoas top when the
parking symbo lshows the desired parking
space in the instrument cluster.
XShift the transmission to position R.
The display shows the Start
ParkAssist?Yes:OKNo:% message and the location
of the parking space.
XTo cance lthe process: press the%but-
ton on the steering whee lordrive off.
or
XTo park using active parking assistance:
press the abutton on the steering wheel.
The display shows the ParkAssist
Active :Accelerat eand BrakeObs.Surroundingsmessage.
XLet go of the steering wheel.
XReverse the vehicle, being ready to brake at
allt imes. Exit the parking space slowly and do
not drive faster than6m ph (10 km/h). Oth-
erwis eparking assistance is cancele dand
Active Parking Assist is stopped.
Active Parking Assist brakes the vehicl etoa
standstill when the vehicl eapproaches the
rea rborde roft he parking space.
156Driving systems
Driving an dparking

or
XShift the automatic transmission toP.
In vehicles with Active Parking Assist,t he rear
view camera remains switched on after the ini-
tial shift to reverse gear for the whole duration of
active parking assistance. You can find informa-
tion on active parking assistance under "Active
Parking Assist“(
Ypage 154).
Displays in the audio display
:Yellow guide line at adistance of approx-
imately 13 ft (4.0 m) from the rear of the
vehicle
;White guide line without turnin gthe steering
wheel, vehicle width including the exterior
mirrors (static)
=Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic)
?Yellow lane of tires at current steering wheel
angle (dynamic)
AYellow guide line at adistance of approx-
imately 3ft(1.0 m) from the rear of the vehi-
cle
BRed guide line at adistance of approximately
12 in (0.30 m) from the rear of the vehicle
CBumper
DVehicle center axis (locating aid) The guide lines are shown when the transmis-
sion is in position
R.
The distance specification sonly apply to
object sthat are at ground level.
PARKTRONIC warning displaysf or vehicles with
Active Parking Assist
E
Frontw arning displays
FVehicle symbol as PARKTRONIC measure-
ment operational readiness indicator
GRear warning displays
When PARKTRONIC is switched on and is opera- tional (
Ypage 152) in vehicles with Active Park-
ing Assist,t he camera image shows vehicle
symbol F.When the PARKTRONIC warning dis-
plays go on, warning displays Eand Glight up
accordingly as red or yellow bracket saround
vehicle symbol F.
"Reverse parking" function
Backing up straight into aparking space
without turning the steering wheel
:White guide line without turnin gthe steering
wheel, vehicle width including the exterior
mirrors (static)
;Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic)
160Driving systems
Driving and parking