2016 MERCEDES-BENZ METRIS trailer

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

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

Towingatrailer
PARKTRONI Cdetects acoupled trailer if your
vehicl eisequippe dwitht he corresponding elec-
trical installations for trailer towing.
PARKTRONI Cisd eactivated for the rea rarea
when yo uestablis hanelectrical connection
between your vehicl eand atrailer. If yo uusean
adapter for the socket, remove it fromt he
socket after detaching the trailer. Otherwise,
PARKTRONI Cremains deactivated for the rear
area.
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Driving an dparking
Z

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

iYou will achievethe best resultsbyw aiting
for the steeringp rocedure to complete before
pulling away.
If you back up afte ractivation, the steering
wheel is movedtot he straight-ahead posi-
tion.
XDrive forwards and back up as prompted by
the PARKTRONIC warnin gdisplays, several
times if necessary.
Onc eyou have exited the parking space com-
pletely:
RThe display shows the Park Assist Fin‐ishedmessage.
Ratones ounds.
Rthe steeringw heel is movedtot he straight-
ahead position.
The parking assistanc efunction of Activ ePark-
ing Assist is stopped. You will the nhave to steer
and mergei ntot raffic on your own.
PARKTRONIC is still available.
You can tak eover the steeringb eforethe vehi-
cle has exited the parking space completely.
This is useful, for example when you recognize
that it is already possible to pull out of the park-
ing space.
Canceling activ eparki ng assistance
XStop the movementoft he steeringwheel or
steer yourself.
or
XPress the fbutton and deactivate
PARKTRONIC (Ypage 152).
Parking assistanc eiscanceled immediately
and Activ eParking Assist is stopped. The dis-
play shows the Park
AssistCanceledmes-
sage.
Activ eparking assistanc eiscanceled automat-
ically if:
Rapply the parking brake.
Rparking using Activ eParking Assist is no lon-
ger possible
Ryou are drivingf aster than6mph (1 0km/ h)
Raw heel spins and ESP®intervenes or fails.
The ÷ warnin glamp in the instrument
cluster the nlightsu p.
Ryou unfasten your seat belt
Ryou open adoor or the tailgate/rear door
Ryou shift the automatic transmission to posi-
tion P Aw
arnin gtones ounds ,the parking symbol in
the display goes out and the Park Assist
Canceledmessageappears.
Onc eactive Parking Assist has been canceled,
you must steer and brakea gain yourself.
If as yste mm alfunction occurs, vehicles are
automatically braked down to astandstill. To
continue driving, you must depresst he acceler-
ator pedal again.
Rear view camera
Genera lnotes
On vehicles with atailgate, the rear view camera
is nex ttothe tailgat ehandle (Ypage 257).
On vehicles with rear doors,t he rear view cam-
era is in the top of the license plate molding
(
Ypage 257).
The rear view camer aisavisual parking aid. It
shows you the area behindt he vehicle in the
audio display.
The area behindt he vehicle is displayed in a
mirrored fashion,asint he rear-view mirror or
the exterior mirrors. The guide lines displayed
assist you in backing up.
The messaged isplays dependont he language
settin gofthe audio system. The followingr ear
view camer adisplays are examples.
Important safetyn otes
!Objectsthat are not at groundl evel appear
further away than the yactually are, for exam-
ple:
Rthe bumper of the vehicle parked behind
Rthe drawbar of atrailer
Rthe ball couplin gofatrailer tow hitch
Rthe tail-end of atruck
Rslanted posts
Only use the camer aguide lines for orienta-
tion .Don ot get any close rtoobject sthan the
lowest horizontal guide line. You may other-
wise damage your vehicle and/or the object.
The rear view camer aisonly an aid. It cannot
replacey our own awarenes softhe immediate
surroundings. You are responsible for safe
maneuveringa nd parking. When maneuvering
and parking, make sure that there are no per-
sons, animals or object sinthe maneuvering
area.
158Driving systems
Driving and parking

The rear view camera may show obstacles in
perspectival distortion, incorrectly or not at all.
The rear view camera cannot display all objects
located very near and/or under the rear
bumper. It does not warn you ofacollision, per-
sons or objects.
Under the following circumstances, the rear
view camera will not function, or will function in
al imited manner:
Rif the tailgate or rear door is open
Rif it is raining very heavily or snowing, or it is
foggy.
Rat night or in very dark places
Rif the camera is exposed to very bright light.
White lines may appear in the camera image.
Rif the area is lit by fluorescent light or LED
lighting. The camera image may flicker.
Rif the camera lens fogs up, e.g. when driving
into aheated garage in winter, causing arapid
change in temperature.
Rif the camera lens is dirty or obstructed.
Observe the notes on cleaning (Ypage 257).
Rif the rear of the vehicle is damaged. In this
case, have the camera position and setting
checked at aqualified specialist workshop.
Do not use the rear view camera in these situa-
tions. You could otherwise injure others or dam-
age object sand the vehicle while parking and
maneuvering.
The field of vision and other functions of the rear
view camera may be restricted due to additional accessories on the rear of the vehicle (e.g.
license plate holder, rear-mounted bicycle
rack).
Guide lines are alwayss hown at road level. In
trailer mode, the guide lines are shown at the
level of the trailer coupling.
If you change wheel size, make sure they corre-
spond to the correctw heel size category
(
Ypage 267). If the category is changed without
recoding the control units in the vehicle, the rear
view camera cannot be precisely calibrated. The
guide lines at road level or at the level of the
trailer tow hitch will not be displayed correctly.
In vehicles with atailgate, the rear view camera
is protected from raindrops and dust by means
of aflap. When the rear view camera is activa-
ted, this flap opens.
The flap closes again when:
Ryou have finished the maneuvering process
Ryou switch off the engine For technical reasons, the flap may remain open
briefly after the rear view camera has been
deactivated.
Switching the rear view camera on or
off
XTo switch on: make sure that the key is in
position 2in the ignition lock.
XShift the transmission to position R.
On vehicles with atailgate, the rear view cam-
era flap opens. The audio display shows the
area behind the vehicle. The rear area shown
is divided by guide lines.
In vehicles with atrailer coupling installed, the
function mode of the rear view camera can be
switched over when the trailer is reached. The
rear view camera then changes the viewing
angle and shows alocating aid for the ball cou-
pling of the trailer tow hitch to help reach the
drawbar.
XTo switch function mode: select and con-
firm "Reverse parking" function :or "Cou-
pling up atrailer“ function ;using the audio
system control knob.
Information on the audio system control knob
can be found in the separate operating
instructions.
The symbol of the selected function is high-
lighted.
XTo switch off: shift the transmission to posi-
tion Nor D.
The dynamic guide lines are hidden and after
about 15 sthe rear view camera switches
itself off.
or
XDrive forwards more than about 30 ft (10 m).
or
XDrive forwards faster than 6mph (10 km/h) .
Driving system s159
Driving an dparking
Z

XBack up carefully untilyouhav ereached the
end position.
Re dg uide lineAis then aligne dwitht he
marking at the end of parking space ?.The
vehicle is almost parallel in the parking space.
"Coupling up atrailer" function
:Trailer drawbar
;Locating ai d–vehicle center point on the
yellow guid elineatad istance of approx-
imately 3ft(1.0m) from the rearofthe vehi-
cle
Thi sfun ctio niso nlya vailable on vehicles with a
trailer tow hitch attached.
XBefore coupling up the trailer, sett he height
of trailer drawbar :so thatiti ssligh tly
highe rthant he ball coupling.
XPositio nthe vehicl ecentrally in front of trailer
drawbar :.
:Trailer drawbar
;Trailer drawbar locating aid
="Coupling up atrailer" functio nselect ed
?Ballcoupling
ARe dg uide line at adistance of approximately
12 in (0.3 0m)fromt he ball coupling
XSelect and confirm "Coupling up atrailer"
function =with the audi osystemc ontrol
knob. Informatio
nonthe audi osystemc ontrolknob
can be found in the separate operating
instructions.
Symbol =is highlighted. The distance spec-
ifications now onl yapply to objects thata reat
the same level as the ball coupling.
XBac kupcarefully, making sure thatt railer
drawbar locating aid ;points approximately
in the direction of trailer drawbar :.
XBackupcarefull yuntiltrailer drawbar :rea-
che sred guid eline A.
The distance between trailer drawbar :and
ball coupling ?is now approximately 12 in
(0.30 m).
XCouplethe trailer (Ypage 162).
Towin gatrailer
Note sont railer towing
Important safety notes
GWARNING
Installing an unsuitable ball coupling may
resul tino verloading of the trailer tow hitch
and the rea raxle. This applie sespecially if the
ball coupling in questio nislon gerora ngled
differently. This could seriously impair the
drivin gcharacteristics and the trailer can
come loose .Ther eisar iskofana ccident.
Yo us houl donlye verinstal laballc oupling
thath asthe permissibl edimensions and that
is designe dtomeety ou rtrailer-towing
requirements .Donot modify the ball coupling
or the trailer tow hitch.
GWARNING
If yo uuseab allc oupling thati snot approved
for your vehicle, it mayc ause excessive strain
on the trailer tow hitch. This can cause dam-
ag etot he vehicl eand the trailer mayc ome
loose durin gthe journey .The handling may be
impaired an dthe rea raxlem aybe overloaded.
Thi sm aylead to an accident involvin gserious
or eve nfatal injury.
162Towin gatrailer
Driving an dparking