key battery MERCEDES-BENZ METRIS 2018 MY18 Operator’s Manual

Hazard warning lamp switch
XTo switch on/off:press the£hazard
warning lamp switch.
If you have indicated a turn while the hazard
warning lamps are switched on, only the turn
signal lamps on the side of the vehicle selected
will light up.
The hazard warning lamps automatically switch
on if:
Ran air bag is deployed.
Ryou brake sharply and bring the vehicle to a
halt from a speed of more than 45 mph
(70 km/h).
The hazard warning lamps switch off automati-
cally if the vehicle reaches a speed of over 6 mph
(10 km/h) again after a full brake application.
iThe hazard warning lamps still operate even
if the ignition is switched off.
Headlamps fogged up on the inside
The headlamps may fog up on the inside if there
is high atmospheric humidity.
XSwitch on the low-beam headlamps and drive off.
The level of moisture diminishes, depending
on the length of the journey and the weather
conditions (humidity and temperature).
If the level of moisture does not diminish:
XHave the headlamps checked at a qualified
specialist workshop.
Interior lighting
Overview
Interior lighting buttons (example: comfort over-
head control panel)
:
p Switches the front left-hand reading
lamp on/off
;| Switches the automatic interior light-
ing control on and off
=c Switches the front interior lighting on
and off
?w Switches the rear or cargo compart-
ment lighting on/off
Ap Switches the front right-hand reading
lamp on and off
The number and arrangement of the buttons is
equipment-dependent.
General notes
In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time,
unless the key is in position 2in the ignition lock.
Automatic interior lighting control
The interior lighting is activated for about
20 seconds whenthe key is removed from the
ignition lock. For a vehicle with steering wheel
buttons, the light delay function for the interior
lighting can be switched on and off using the on-
board computer (
Ypage 190).
Interior lighting99
Lights and windshield wiper s
Z

settings are reactivated with the exception of
air-recirculation mode. Air-recirculation mode
remains deactivated.
Clearing condensation from the win-
dows
Windows fogged up on the inside
Air-conditioning system
You should only select this setting until the win-
dows are clear again.
XSwitch on the rear window defroster if nec-
essary (Ypage 118).
XSwitch on climate control (Ypage 113).
XSwitch off air-recirculation mode
(Ypage 118).
XTurn temperature control :clockwise to a
higher temperature and air flow control Ato
a blower speed between 3and 6
(
Ypage 111).
XIf possible, only select the ¯setting of the
air distribution (Ypage 116).
Only the indicator lamp in the ¯button
lights up.
XSwitch on the cooling with air dehumidifica-
tion function (Ypage 114).
XIf the windows still fog up, set the climate
control functions as described for defrosting
of the windshield (
Ypage 117).
Dual-zone automatic climate control
You should only select this setting until the win- dows are clear again.
XSwitch on the rear window defroster if nec-
essary (Ypage 118).
XSwitch on climate control (Ypage 113).
XSwitch off air-recirculation mode
(Ypage 118).
XSwitch on the cooling with air dehumidifica-
tion function (Ypage 114).
XSwitch on automatic mode (Ypage 115).
XIf the windows continue to fog up, switch on
the windshield defrosting function
(
Ypage 117).
Windows fogged up on the outside
You should only select this setting until the
windshield is clear again.
XSwitch on the windshield wipers
(Ypage 106).
XSwitch on climate control (Ypage 113).
XIn warm and damp weather, do not allow cold
air to flow onto the windows. Close the side
air vents if required (
Ypage 120).
Switching the rear window defroster
on/off
General notes
The rear window defroster consumes a lot of
power. You should therefore switch off the rear
window defroster as soon as the rear window is
clear.
XTurn the key to position 2in the ignition lock.
XPress the ¤button on the control panel.
If the indicator lamp in the ¤button lights
up, the rear window defroster is switched on.
The rear window defroster switches off auto-
matically after a few minutes.
Problems with the rear window
defroster
The rear window defroster has switched off pre-
maturely or cannot be activated.
The vehicle starter battery is not sufficiently
charged.
XSwitch off any consumers that are not
required, e.g. reading lamps, interior lighting
or seat heating.
When the battery is sufficiently charged, the
rear window defroster can be activated again.
Switching air-recirculation mode
on/off
Important safety notes
You can deactivate the intake of fresh air if
unpleasant odors enter the vehicle from out-
side. The air inside the vehicle is then circulated.
When you switch on air-recirculation mode, the side windows and windows could fog up more
118Operating the climate control system
Climate control

quickly, in particular at low outside tempera-
tures. Only switch on air-recirculation mode for
a short time.
Air-conditioning system or dual-zone
automatic climate control
XSwitch on climate control (Ypage 113).
XPress thehbutton.
If the indicator lamp in the hbutton lights
up, air-recirculation mode is activated.
Air-recirculation mode switches on automati-
cally:
Rat high outside temperatures.
Rwhile driving in a tunnel (only vehicles with a
navigation system).
The indicator lamp in the hbutton is then not
lit up. Outside air is added automatically after
about 30 minutes.
Air-recirculation mode is deactivated automati-
cally:
Rafter approximately five minutes at outside
temperatures below about 45 ‡ (7 †)
Rafter approximately five minutes when the
cooling with air-dehumidification function is
deactivated
Rafter approximately 30 minutes at outside
temperatures above about 45 ‡ (7 †) and
when the cooling with air-dehumidification
function is active
Convenience opening/pre-entry cli-
mate control
GWARNING
During convenience opening, body parts
could be drawn in or become trapped
between the side window and the door frame.
There is a risk of injury.
Monitor the entire opening procedure when
using convenience opening. When opening,
make sure that nobody touches the side win- dow. Release the %switch immediately if
somebody becomes trapped, to interrupt the
opening procedure.
XPre-entry climate control and conveni-
ence opening with the key: press and hold
the % button on the key.
The side windows open automatically and the
blower of the climate control system is acti-
vated.
XRelease the %button.
iAt high interior temperatures, the blower is
also switched on when a door is opened. This
means that slightly cooled air enters the vehi-
cle interior after the engine is started, to cool
the vehicle more rapidly.
Switching the residual heat function
on/off
General notes
Only vehicles with dual-zone automatic climate
control have the residual heat function.
Once the engine is switched off, it is possible to
make use of the residual heat of the engine to
continue heating or ventilating the front com-
partment of the vehicle for approximately
30 minutes. The heating or ventilation time
depends on the set interior temperature.
Switching the function on/off
XTurn the key to position 0in the ignition lock
or remove it.
XPress the Ìbutton.
If the residual heat function is activated, the
indicator lamp in the Ìbutton comes on.
The blower will run at a low speed regardless
of the airflow setting.
If you activate the residual heat function at
high temperatures, only the auxiliary ventila-
tion will be activated. The blower then runs at
medium speed.
The residual heat function switches off auto-
matically
Rafter approximately 30 minutes
Rif the starter battery's condition of charge is
too low
Rwhen you switch on the ignition
Operating the climate control system119
Climate control
Z

GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
!Always secure the vehicle correctly against
rolling away. Otherwise, the vehicle or its driv-
etrain could be damaged.
!When the vehicle is parked, always remove
the key to prevent the battery from becoming
discharged.
Always park your vehicle safely and secure it
against rolling away. When parking, observe the
legal requirements of the country in which you
are currently driving.
To ensure that the vehicle is properly secured
against rolling away unintentionally:
Rthe parking brake must be firmly applied
Rthe transmission must be in position Pand the
key must be removed from the ignition lock
Ron steep uphill or downhill gradients, the front
wheels must be turned towards the curb
Parking brake
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If you must brake the vehicle with the parking brake, the braking distance is considerably
longer and the wheels could lock. There is an
increased danger of skidding and accidents.
Only use the parking brake to brake the vehi-
cle when the service brake is faulty. Do not
apply the parking brake too firmly. If the
wheels lock, release the parking brake until
the wheels begin turning again.
The brake lamps are not illuminated when you
brake the vehicle using the parking brake.
As a rule, you may only apply the parking brake
when the vehicle is stationary.
XTo apply the parking brake: depress park-
ing brake pedal ;firmly.
The red F(only USA) or J(only Can-
ada) indicator lamp in the instrument cluster
lights up if the engine is running.
XTo release the parking brake: depress the
brake pedal and keep it depressed.
XPull release handle :.
The parking brake is released abruptly. The
red F (only USA) or J(only Canada)
indicator lamp in the instrument cluster goes
out.
Exceptionally, if the service brake fails, the park-
ing brake can be used to brake the vehicle in an
emergency.
XEmergency braking: pull release handle:
and gradually depress parking brake
pedal ;.
136Parking
Driving and parking

Switching off the engine
Important safety notes
GWARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
After switching off the engine, always switch
to parking position P. Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
!If the coolant temperature is very high, e.g.
after driving on hilly roads, leave the engine
running at idle speed for about two minutes
before turning it off.
This allows the coolant temperature to return
to normal.
Vehicles with automatic transmission
XStop the vehicle.
XShift the transmission to position P.
XApply the parking brake.
XTurn the key to position0in the ignition lock
and remove it.
The immobilizer is activated.
If you switch the engine off with the trans-
mission in position Ror D, the automatic
transmission shifts to Nautomatically.
If you then open one of the front doors or
remove the key from the ignition, the auto-
matic transmission automatically shifts to P.
If you shift the automatic transmission to N
before switching off the engine, the automatic
transmission remains in Neven if a front door
is opened.
XSecure the vehicle to prevent it from rolling
away (Ypage 135).
Parking the vehicle for a long period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
XDisconnect the battery (Ypage 261).
or
XConnect the battery to a trickle charger.
Be sure to observe the notes on charging the batteries (
Ypage 264).
You can obtain information about trickle
chargers from a qualified specialist work-
shop.
If you leave the vehicle parked for longer than 6
weeks, the vehicle may suffer damage as a
result of lack of use.
XVisit a qualified specialist workshop and seek
advice.
Driving tips
General notes
Important safety notes
GWARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
GWARNING
If you operate mobile communication equip-
ment while driving, you will be distracted from traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate this equipment when the vehicle
is stationary.
Observe the legal requirements of the country in
which you are driving. Some jurisdictions pro-
hibit the driver from using a mobile phone while driving a vehicle.
Driving tips137
Driving and parking
Z

Cigarette lighter in the front compart-
ment
XTo use the cigarette lighter:turn the key to
position 1in the ignition lock (Ypage 123).
XPress in cigarette lighter :.
The cigarette lighter will pop out automati-
cally when the heating element is red-hot.
XPull the cigarette lighter out of the socket by
its handle.
The cigarette lighter socket can be used for
accessories with a maximum power consump-
tion of 180 W (15A).
If you use th esockets to connec taccessories
fo rlon gperiod swhe nth eengin eis switched off,
th estarter battery may discharge. An emer -
gency cut-off ensures that th eon-boar dvoltage
doe sno tdro pto olow. If th eon-boar dvoltage is
to olow, powe rto th esocke tis automatically
cut .Thi sensures that ther eis sufficien tpowe r
to start th eengine.
12 Vsocket
Whe nth eke yis turned to position 1in th eigni-
tion lock, th esockets can be used fo raccesso- rie
swit h a maximum powe rconsumption of
18 0 W (15 A) .
If you use th esockets fo rlon gperiod swhe nth e
engin eis switched off, th estarter battery may
discharge. If th eon-boar dvoltage is to olow, it
might then no longer be possible to start th e
engine.
The socke tin th ecenter console an dth esocke t
in th esid eof th ecargo compartment are no t
automatically deactivated if th eon-boar dvolt -
age is low. The additional sockets in th erear
compartment are automatically deactivated if
th eon-boar dvoltage is low.
Additional 12 Vsockets may be located in th e
corner trim next to th etailgate an din th esid e
trim on th elef tan dright-han dsides.
XLif tup th ecove rof socke t: .
Mobile communications equipment
GWARNING
Operatin gmobile information systems an d
communication devices whil edrivin gwill dis -
tract you from traffic conditions. In addition ,
you could then los econtro lof th evehicle.
There is aris kof an accident.
Only operat ethese devices whe nth evehicle
is stationary.
Observe th elegal requirements fo rth ecountr y
in whic hyou are currently drivin gwhe noperat -
in g mobile communication equipment .
Please remember, anavigation syste mdoe sno t
supply information on th eload-bearin gcapacity
of bridge sor th eoverhead clearance of under -
passes. The drive rremains responsible fo r
safet yat all times.
You an dother scan suffe rhealth-related dam -
age through electromagnetic radiation .By usin g
an exterio rantenna, apossible health ris k
caused by electromagnetic fields ,as discussed
in scientific circles ,is take ninto account. Only
hav eth eexterio rantenn ainstalled by aqualifie d
specialis tworkshop .
Failur eto observe th eMercedes-Ben zinstalla-
tion specification scan result in th einvalidation
of your vehicle' soperatin gpermit .
You will fin d
i
nformation on retrofitting electrical
or electronic equipment under “Vehicle elec -
tronics” (
Ypage 305).
Mobile communications equipment243
Stowing an d features
Z

Rfrequent operation in mountainous terrain or
on poor road surfaces
Rleaving the engine idling for long periods on a
frequent basis
In these or similar operating conditions, have
the air filter, engine oil and oil filter, for example,
replaced more frequently. Under more arduous
operating conditions, the tires must be checked more often. Further information can be obtained
at a qualified specialist workshop, e.g. an
authorized Mercedes-Benz Commercial Van
Center.
Hiding service messages
Vehicles without steering wheel buttons
XPress the 3button on the instrument clus-
ter.
Vehicles with steering wheel buttons
XPress the aor% button on the steering
wheel.
Calling up the service due date
Vehicles without steering wheel buttons
The vehicle must be stationary. Use the buttons
in the instrument cluster.
XTurn the SmartKey to position 2in the ignition
lock.
XPress Èto select the service display.
The display shows a possible service mes-
sage.
Vehicles with steering wheel buttons
Using the steering wheel buttons
XTurn the SmartKey to position 2in the ignition
lock.
XPress =or; to select the Servicemenu.
XPress9or: to select the ASSYSTPLUSsubmenu and press ato confirm.
The display shows the service due date.
Battery
Important safety notes
Work on the battery, e.g. removing or installing,
requires specialist knowledge and the use of
special tools. Therefore, always have work on the battery carried out at a qualified specialist
workshop.
GWARNING
Work carried out incorrectly on the battery
can lead, for example, to a short circuit and
thus damage the vehicle electronics. This can
lead to function restrictions applying to
safety-relevant systems, e.g. the lighting sys-
tem, the ABS (anti-lock braking system) or the
ESP
®(Electronic Stability Program). The oper-
ating safety of your vehicle may be restricted.
You could lose control of the vehicle, for
example:
Rwhen braking
Rin the event of abrupt steering maneuvers
and/or when the vehicle's speed is not
adapted to the road conditions
There is a risk of an accident.
In the event of a short circuit or a similar inci-
dent, contact a qualified specialist workshop
immediately. Do not drive any further. You
should have all work involving the battery car- ried out at a qualified specialist workshop.
Further information can be found under "ABS"
(
Ypage 64) and under "ESP®" (Ypage 65).
GWARNING
Electrostatic build-up can lead to the creation of sparks, which could ignite the highly explo-
sive gases of a battery. There is a risk of an
explosion.
Before handling the battery, touch the vehicle
body to remove any existing electrostatic
build-up.
The flammable gas mix is produced when the
battery is charged or when the vehicle is jump-
started.
Always make sure that neither you nor the bat-
tery are electro statically charged. Electrostatic
charging results, for example, from:
Rwearing synthetic clothing
Rfriction between clothing and the seat
Rdragging or pushing the battery across carpet
flooring or any other synthetic materials
Rrubbing the battery with cloths or towels.
260Battery
Maintenance and care

Comply with the foll owing safety precautions
and take protective measures when handlin g
batteries.
Risk of explos ion. Explosive oxyhy-
drogen isproduced when batteries
are bein g charge d.Only charge bat-
teries in well- ventilated areas.
Fire, open flames and smoking are
therefore pro hibited when working
on the battery. Avoid creating
sparks.
Battery acid iscaustic. Avoid con-
tact with the skin, eyes or clothing.
Wear acid-proof protective gloves. If
skin or clothes are splashed with
acid, neutr alize the splashes imme-
diat elywith soapy water or an acid
neutr alizer, and then clean the affec-
ted areas with water. Consult a doc-
tor ifnecessary.
Wear eye protection. When mixing
water and acid, the liquidcan splash
into your eyes. Rinse acid splashes
to the eyes immediately with clean
water and contact a doctor immedi-
ately.
Keep ch ildren at a safe distance.
Childr en are not ableto assess the
dangers posed bybatteries and
acid.
When handlin g batteries, observe
the safety precautions and special
protective measures contained in
th is Operator's Manual.
HEnvironmental note
Batteries contain dangerous
substances. It isagainst the
law to dispose of them with
the household rubbish. They
must becollec ted separate ly
and recycled to protect the
environment.
Dispose of batteries inan
environmentally friendly
manner. Take discharged
batteries to a qualified spe-
cialist workshop or a special
co llec tion point for used bat-
teries. Observe the foll
owing notes:
RRecharge the battery more frequently, if you:
-predominantly drive short distances
-predominantly drive at low outside temper-
atures
-leave the vehicle parked for a lengthy
period
In order for the batteries to achieve their max-
imum possible service life, they must always
be sufficiently charge d.
RConsult an authorized Mercedes-Benz Com-
mercial Van Centerifyou wish to leave your
vehicle parked for a long period of time.
RWhen you park the vehicle, remove the key if
you do not require any electrical consumers.
The vehicle will then use very little energy,
thus conserving battery power.
RIf your vehicle requires jump-starting, or if you
wish to provide jump-starting assistance to
another vehicle, only use the jump-starting
connection point in the engine compartment
(
Ypage 274).
RHave the battery removed at a qualified spe-
cialist workshop.
Installation locations
Your vehicle may be equipped with three bat-
teries, depending on the equipment version:
RStarter battery in the seat base of the right-
hand front seat
RAuxiliary battery inthe seat base of the right-
hand front seat
RAdditional battery inthe seat base of the left-
hand front seat
Disconnecting and removing
GWARNING
During the charging process, a battery produ-
ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
RMake sure that the positive terminal of a
connected battery does not come into con- tact with vehicle parts.
RNever place metal objects or tools on a bat-
tery.
Battery261
Maintenance and care
Z

RIt is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
RWhen jump-starting, make sure that the
battery poles with identical polarity are
connected.
RIt is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables.
RNever connect or disconnect the battery
terminals while the engine is running.
GWARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with
plenty of clean water and seek medical atten-
tion.
!You should have all work involving the bat-
tery carried out at a qualified specialist work-
shop.
If, in exceptional circumstances, you need to
disconnect the battery yourself, please make
sure that:
RSecure the vehicle to prevent it from rolling
away.
RYou have switched off the engine and
removed the key. Make sure the ignition is
switched off. Check to see that there are no
indicator lamps lighting in the instrument
cluster. Electronic components such as the
alternator may otherwise be damaged.
RAfter the battery has been disconnected,
the parking brake is automatically
engaged. You can then no longer move the
vehicle.
RFor vehicles with automatic transmission,
the transmission is locked in position P
after disconnecting the battery. You can
then no longer move the vehicle.
RYou have first removed the negative termi- nal and then the positive terminal. Never
mix up the terminal clamp disconnection/
connection order and never mix up the ter-
minal clamps. The vehicle's electronics
may otherwise be damaged. The battery and the cover of the positive ter-
minal clamp must be installed securely during
operation.
Seat base (example: right-hand front seat)
The following description on disconnecting and
removing the battery is based upon the example
of the starter battery in the seat base of the
driver's seat. The additional battery is discon-
nected and removed in the same way as the
starter battery. The auxiliary battery is located in the seat base of the left-hand front seat.
XSwitch off all electrical consumers.
XSwitch off the engine and remove the key
from the ignition lock.
XOpen the front door on the right-hand side.
iTo disconnect or remove the additional bat-
tery, open the left-hand front door. The auxil-
iary battery is located in the seat base of the
left-hand front seat.
XPress both latching springs :down and
remove cover ;upwards from the seat base.
XRemove cover ;by pulling upwards at an
angle from the seat base.
Open seat base (example: right-hand front seat)
XRemove screws Afrom holder B.
XRemove holder B.
262Battery
Maintenance and care

!Vehicles with a gasoline engine:avoid
repeated and lengthy starting attempts. Oth-
erwise, the catalytic converter could be dam-
aged by non-combusted fuel.
If the indicator and warning lamps in the instru-
ment cluster do not light up at low tempera-
tures, the discharged battery may have frozen.
In this case you may neither charge the battery
nor jump-start the vehicle. The service life of a
thawed battery may be shorter. Start-up behav-
ior may deteriorate, in particular at low temper-
atures. Have the thawed battery checked at a
qualified specialist workshop.
Do not use a rapid charging device to start the
vehicle. If your vehicle's battery is discharged,
the engine can be jump-started from another
vehicle or from a donor battery using jumper
cables. For this purpose, the vehicle has a jump-
starting connection point in the engine com-
partment.
When jump-starting, observe the following
points:
RThe battery is not accessible in all vehicles. If
the other vehicle's battery is not accessible,
jump-start the vehicle using a donor battery
or a jump-starting device.
RYou may only jump-start the vehicle when the
engine and exhaust system are cold.
Rdo not start the engine if the battery is frozen.
Let the battery thaw first.
Rjump-starting may only be performed from
batteries with a nominal voltage of 12 V.
Ronly use jumper cables that have a sufficient
cross-section and insulated terminal clamps.
Rif the battery is fully discharged, attach the
battery of another vehicle for a few minutes
before attempting to start. This charges the
empty battery a little.
Rmake sure that the two vehicles do not touch.
Make sure that:
Rthe jumper cables are not damaged.
Rbare parts of the terminal clamps do not come into contact with other metal parts while the
jumper cables are connected to the battery.
Rthe jumper cables cannot come into contact
with parts such as the V-belt pulley or the fan.
These parts move when the engine is started
and while it is running.
Jumper cables and further information regarding
jump starting can be obtained at any qualified
specialist workshop.
Before connecting the jumper cables
XApply the parking brake.
XShift the transmission to position P.
XSwitch off all electrical consumers, e.g. audio
equipment, blower.
XTurn the key to position 0in the ignition lock
and remove it.
XOpen the hood (Ypage 253).
Connecting the jumper cable
XPush contact protection cover :of the jump-
starting connection point backwards against
the spring force as far as it will go.
The jump-starting connection point is visible.
Terminal connecting planXRemove the cover from positive terminal =
of the donor vehicle's battery.
XConnect the positive terminal clamp of the
jumper cable to positive terminal =of the
donor vehicle's battery, and then to positive
terminal Aof the jump-starting connection
point.
XRun the donor vehicle's engine at idling
speed.
Jump-starting275
Breakdown assistance
Z