2016 MERCEDES-BENZ METRIS engine

GWARNING
The brake flui dconstantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake
flui dist oo low ,vapo rpockets may form in the
brake system when the brakes are applied
hard .This would impair braking efficiency.
There is arisk of an accident.
You should have the brake flui drenewe dat
the specified intervals.
!If the brake flui dlevelint he brake flui dres-
ervoir has fallen to the MIN mark or below,
check the brake system immediatel yfor
leaks. Also check the thickness of the brake
linings. Visi taqualified specialist workshop
immediately.
Do not add brake fluid. This does not correct
the malfunction.
!Brake flui dcorrodes paint, plastic and rub-
ber. If paint, plastic or rubber has come into
contact with brake fluid, rinse with water
immediately.
Have the brake flui drenewe devery 2years at a
qualified specialist workshop. Observe the infor-
mation regarding brake flui dinthe "Service
products and capacities" section (
Ypag e300).
Check the brake flui dlevelr egularly, e.g. weekly
or when refueling.
Checking the brake fluid level
XStop you rvehicl easf ar awa yfrom traffic as
possible on leve lground.
XSwitch off the engine.
XSecure the vehicletop revent it from rolling
away.
XOpen the hood (Ypag e241).
XCheck the brake flui dlevel.
The brake flui dlevelisa dequate if the leve lis
between the MIN mark and MAX mark on
brake flui dreservoir :.
XClose the hood.
Washer fluid
GWARNING
Opening the hood when the engine is over-
heated or when there is afire in the engine
compartment coul dexpose you to hot gases
or other service products. There is arisk of
injury.
Let an overheated engine cool downb efore
opening the hood. If there is afire in the
engine compartment, keep the hood closed
and contact the fire department.
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible,l et the engine cool downa nd
touch only the components described in the
following.
GWARNING
Windshiel dwasher concentrate coul dignite if
it comes into contact with hot engine compo-
nents or the exhaust system. There is arisk of
fire and injury.
Make sure that no windshiel dwasher con-
centrate is spilled next to the filler neck.
!Only use washer flui dthat is suitable for
plastic lamp lenses ,e.g. MB SummerFi torMB
WinterFit. Unsuitable washer flui dcoul ddam-
age the plastic lenses of the headlamps.
246Engine compartment
Maintenance and care

Example: washerfluid reservoir
Add windshield washe rconcentrate to the
washe rfluid al lyea rround. Observ ethe infor-
matio nregarding washe rfluid under "Service
Products and Capacities" (
Ypage 302).
Adding washe rfluid
XMixt he washe rfluid to the appropriate mixing
ratio in acontaine rbeforehand.
XOpe nthe hoo d(Ypage 241).
XPull cap :on the washe rfluid reservoir
upwards at the tab.
XAdd the premixe dwashe rfluid.
XPress cap :onto the fille rneck unti lit
engages audibly.
XClose the hood.
Maintenance
General notes
HEnvironmental note
Observ emeasures to protect the environ-
ment when working on the vehicle. Yo umust
observe the legalr equirements when dispos-
ing of servic eproducts, e.g .engine oil. This
also includes al lcomponents, e.g .filters,
which have come into contact with service
products. Any qualified specialist workshop
can provid einformatio nabout this.
Dispose of empty containers, cleaning cloths
and car eproducts in an environmentally
responsibl emanner. Compl ywitht he instruc-
tions for us eofthe car eproducts.
Do not runt he engine for longert hanneces-
sary when the vehicl eisstationary. Before carrying outm
aintenance measures and
repairs, yo umustrea dt he following documents
relating to maintenance measures and repairs:
Rthe applicabl esections of the technica ldoc-
umentation, e.g .the Operator' sManualand
workshop information.
Rregulations such as industria lsafety regula-
tions and accident prevention regulations.
While working under the vehicle, yo umust
secur ethe vehicl eonjack stands with sufficient
load capacity.
Never us eavehicl ejack instea dofstands. The
jack is designe donlytor aisethe vehicl efor a
short time when changing awheel .Itisn ot
s ui

te df or performing maintenance work under
the vehicle.
Please also refer to the notesa boutqualified
specialist workshops(
Ypage 29).
The scop eand regularity of the inspectio nand
maintenance work primaril ydepen dont he
ofte ndiverse operating conditions. Specialist
knowledg ebeyond the scop eofthisOperator's
Manua lisrequired when carrying outt esting
and maintenance work. Thi sworks houl donlyb e
carrie doutby trained staff.
The vehicl eMaintenance Bookle tdescribe sthe
scop eand frequency of maintenance work and
contains additional notes on the Limite dWar-
ranty. Yo uwillf ind informatio nabout service
products approved by Mercedes-Benz and
capacitie sunder "Service products and capaci-
ties" (
Ypage 295)
Maintenance services must be carrie doutin
accordance with the provisions and recommen-
dations in the Maintenance Booklet. Not doing
so could voi dthe warranty claim and lead to
refusal of goodwil lgestures afte rthe manufac-
turer hass ubmitted adamag ereport.
Observ ethe informatio nunder "Mercedes-Benz
genuine parts" (
Ypage 31).
Service interval display
General notes
The servic eintervald isplay informs yo uofthe
next servic eduedate. Informatio nonthe typ eof
servic eand servic eintervals can be found in the
Maintenance Booklet.
iThe servic eintervald isplay does not provide
informatio nabout the engine oill evel.T he
Maintenance247
Maintenance and care
Z

service interval displayshould therefore not
be confused with the engine oil level display.
For example, the displays hows one of the fol-
lowing service messages for afew seconds:
RNext Service Ain..Days
RServiceADueorService ADue
RServ. AExceed. by .. Days
Then either the remaining time or distance until
the next service due date is displayed. If the
service due date has been exceeded, the
elapsedt ime or distance traveled after the over-
due service date is shown. The letter in the dis-
play message indicates which service is due. A
stands foraminor service and Bforam ajor ser-
vice.
Aq ualified specialist workshop, e.g. an author-
ized Mercedes-Benz Commercial Van Center,
will reset the service interval displaya fter the
service work has been carried out. You can also
obtain further information on maintenance
work, for example.
The prescribed service interval is based on nor- mal vehicle use. Service work will need to be
performed more frequently than prescribed if
the vehicle is operated under more arduousc on-
ditions or with higher loads. Such arduousc on-
ditions include:
Rregularc ity driving with frequent intermediate
stops
Rdriving predominantly short distances
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 aq ualified 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.
Callingupt he service due date
Vehicles without steering wheel buttons
The vehicle must be stationary. Use the buttons
in the instrument cluster.
XTurn the key to position 2in the ignition lock.
XPress Èto select the service display.
The displays howsapossible service mes-
sage.
Vehicles with steering wheel buttons
Using the steering wheel buttons
XTurn the key to position 2in the ignition lock.
XPress =or; to select the Servicemenu.
XPress the9or: button to select the
ASSYST PLUSsubmenu and press ato
confirm.
The displays hows 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 aqualified specialist
workshop.
GWARNING
Work carried out incorrectly on the battery
can lead, for example, to ashort 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 arisk of an accident.
In the event of ashort circuit or asimilari nci-
dent, contact aqualified specialist workshop
248Battery
Maintenance and care

connection point in the engine compartment
(Ypage 262).
RHave the battery removed ataquali fied spe-
cialist workshop.
Installationl ocations
You rvehicle may be equipped with three bat-
teries, depending on the equipment version:
RStarter battery in the seatb aseoft he right-
hand front seat
RAuxiliary battery in the seatb aseoft he right-
hand front seat
RAdditiona lbattery in the seatb aseoft he left-
hand front seat
Disconnecting and removing
GWARNING
During the charging process ,abattery produ-
ces hydrogen gas. If ashort circuit occurs or
sparks are created, the hydrogen gasc an
ignite. There is ariskofane xplosion.
RMake sure that the positive terminal of a
connected battery doe snot come into con-
tact with vehicle parts.
RNeve rplace metalo bjects or toolsonab at-
tery.
RIt is important that yo uobserve the descri-
bed order of the battery terminal swhen
connecting and disconnecting abattery.
RWhe njump-starting, make sure that the
battery poles with identica lpolarity are
connected.
RIt is particularly important to observe the
described order whe nconnecting and dis-
connecting the jumper cables.
RNeve rconnect or disconnect the battery
terminal swhile the engine is running.
GWARNING
Batter yacidisc austic. There is ariskofi njury.
Avoidc ontact with skin, eyes or clothing. Do
not inhale any battery gases .Donot lean over
the battery.K eepc hildre nawayfrom batter-
ies. Wash away battery aci dimmediatel ywith
plenty of clean water and seekm edicalatten-
tion.
!You shoul dhavea llwork involving the bat-
tery carrie doutataq uali fied specialist work-
shop.
If, in exceptiona lcircumstances, yo uneed 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.M akes uret he 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 hasb eend isconnected,
the parking brake is automatically
engaged .You can then no longer move the
vehicle.
RFor vehicle switha utomatic transmission,
the transmission is locke dinposition P
afte rdisconnecting the battery.Y ou can
then no longer move the vehicle.
RYou have firs tremoved the negative termi-
nal and then the positive terminal .Never
mix up the terminal clamp disconnection/
connection order and never mix up the ter-
mina lclamps. The vehicle's electronics
may otherwise be damaged.
The battery and the cover of the positive ter-
mina lclamp mus tbeinstalled securel yduring
operation.
Seatb ase( 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 seatb aseoft he
driver' sseat. The additiona lbattery is discon-
nected and removed in the sam ewayas the
250Battery
Maintenancea nd care

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 Smart-
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.
XRemove breather hose ?from the top of the
battery.
XPull the battery out of the seat base until the
negative clamp can be released and removed.
XDisconnect the negative clamp from negative
terminal =.
XRemove the negative clamp in such away that
the battery cable terminal no longer touches
negative terminal =.
Example: starter battery
XRemove the battery from the seat base and
place it on the door sill panel as shown. If
necessary, hold the battery by handles E.
XRemove the positive clamp cover from posi-
tive terminalC.
XLoosen positive clamp Don positive terminal
C.
XRemove positive clamp Din such away that
the battery cable terminal no longer touches
positive terminal C.
XLift the battery from the door sill panel by
handlesE.
Reconnecting and installing
GWARNING
During the charging process, abattery produ-
ces hydrogen gas. If ashort circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is arisk 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 abat-
tery.
RIt is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting abattery.
RWhen jump-starting, make sure that the
battery poles with identical polarity are
connected.
Battery251
Maintenance and care
Z

RIt is particularly important to observe the
describedorder when connecting and dis-
connecting the jumper cables.
RNever connect or disconnect the battery
terminals whil ethe engine is running.
!Alway sconnect the battery in the order
describedb elow. Never mix up the terminal
clamp disconnection/connection order and
never mix up the terminal clamps. You may
otherwise damage the vehicle electronics.
Alway sobserve the prescribedp ositive ter-
minal installation positionw hen doing so.
Otherwise ,the positive clamp may come into
contact with vehicle parts. In this case there is
ar isk that the vehicle may short-circuit and
catch fire.
The following descriptiononc onnecting and
installing the battery is base dupon the example
of the starter battery in the seat base of the
right-hand front seat. The additional battery is
connected and installe dinthe same way as the
starter battery. The auxiliary battery is located in
the seat base of the left-hand front seat.
Example: starter battery
XPlace the battery on the door sill panel as
shown and secure with handles =if neces-
sary.
XConnect positive clamp ;to positive termi-
nal :.A lwaysobserve the positive terminal
installation positions hown when doing so.
The positive leadm ust be routed parallel to
the side of the battery housing in the connec-
tion area.
XPlace the positive clamp cover on positive
terminal :.
XFold both handles =down onto the battery.
XPush the battery into the seat base until the
negative terminal can be connected.
XConnect the negative clamp to negative ter-
minal ?.
XPush the battery into the seat base as far as it
wil lgo.
Open seat base with installe dbattery (example:
right-hand front seat)
XPush breather hose Aonto the battery con-
nection at the top.
XGuide holder Cover the lowers ide of the
battery housing and the threads for screws
B.
XScrew on holder Cwith screws B.
The battery is secured to prevent slipping.
Seat base (example: right-hand front seat)
XInsert cover Edown in front of the battery
compartment into the seat base and close it.
Latching springs Dof cover Eshould
engage audibly.
Carry out the following work after connecting
the battery:
XRese tthe side window (Ypage 81).
XRese tthe electric sliding doors (Ypage 77).
252Battery
Maintenancea nd care

Charging
GWARNING
Ad ischarged battery can freezeatt empera-
tures below freezing point. When jump-start-
ing th evehicle or chargin gthe battery, gases
can escape from th ebattery. Thereisar isko f
an explosion.
Allow th efroze nbattery to thaw out before
chargin gitorjump-starting.
If th eindicator/warning lamps do no tlight up in
th ei nstrumen tcluste rwhen temperatures are
low, it is probably because th edischarged bat-
tery has frozen.S hould this be th ecase, do not
jump-star tthe vehicle or charge th ebattery. The
servic elife of athawed battery may be shorter.
Start-up behavior may deteriorate, in particular
at low temperatures. Hav ethe thawed battery
checked at aqualified specialist workshop.
GWARNING
During chargin gand jump-starting, explosive
gases can escape from th ebattery. Thereisa
ris kofane xplosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilatio nwhile chargin gand jump-starting.
Do no tlean ove rabattery.
GWARNING
Battery acid is caustic .Thereisar iskofi njury.
Avoid contac twiths kin, eyes or clothing .Do
no tinhale any battery gases.Don otlean over
th eb attery. Keep childre naway from batter-
ies. Wash away battery acid immediately with
plenty of clean wate rand seek medical atten-
tion.
!Only charge th einstalled battery withab at-
tery charge rtha th as been tested and
approved by Mercedes-Benz. This device
allows th ebattery to be charge dwhen it is
installed in th evehicle .The vehicle's elec-
tronics system may otherwise be damaged.
!Only charge th ebattery usingt hejump-
starting connection point.
Ab attery charge runit specially adapted for
Mercedes-Ben zvehicle sand tested and approved by Mercedes-Ben
zisavailable as an
accessory. Only this device permits th echarging
of th ebattery in its installed position. Contac tan
authorized Mercedes-Ben zCommercial Van
Cente rfor informatio nand availability. Read the
operatin ginstructionsf or your charge rbefore
chargin gthe battery.
Recharge th ebattery mor efrequently if you use
th ev ehicle mainly for short trips and/or driv eat
low outside temperatures.
Only charge th einstalled battery withab attery
charge rtha th as been tested and approved by
Mercedes-Benz, usingt hejum p-st
artc on
nec-
tio np ointint heenginec ompartment.
XConnect th ebattery charge rtothepositive
terminal and ground terminal in th esame
order as when connecting th edonor battery in
th ej ump-startin gprocedure (
Ypage 262).
iRecharge uninstalled, out of servic ebatter-
ies every 3month s.This will counter self-dis-
charging and prevent battery damage.
Care
!
Dirt ybattery clamps and battery surfaces
cause leak currentsw hich lead to the batter-
ies discharging.
!Do not use cleaning agents containing fuel.
Cleaning agents containing fuel corrode the
battery housing.
!If dirt gets into the battery cell, battery self-
discharge will increase and the battery may
be damaged.
The following points on battery care must be
observed:
XRegularly check the battery terminals and the
fastening of the negative cable to the chassis
to ensure that they are firmly seated.
XAlways keep the battery terminals and battery
surfaces clean and dry.
XLightly grease the undersides of the battery
terminals with acid-resistant grease.
XOnly clean the battery casing with acommer-
cially availablec leaning product.
Battery253
Maintenance and care
Z

This will prevent smears and reduce wiping
noises caused by residue on the windshield.
Ron vehicles with rear doors, from the rear view
camera lens in the top of the license plate
molding (
Ypage 257)
Washing by hand
In some countries, washing by hand is only
allowed at specially equipped washing bays.
Observe the legal requirementsofthe country
you are currently in when washing by hand.
XDo not use hot water and do not wash the
vehicle in direct sunlight.
XUse asoft car sponge.
XUse amild cleaning agent, e.g. aMercedes-
Benz approved car shampoo.
XThoroughly hose down the vehicle with agen-
tle jet of water.
XDo not point the water jet directly towards the
air inlets.
XUse plenty of water and rinse out the sponge
frequently.
XRinse the vehicle with clean water and dry
thoroughly with achamois.
XDo not let the cleaning agents dry on the
paintwork.
When using the vehicle in winter, remove all
traces of road salt deposits carefully and as
soon as possible.
Power washers
GWARNING
The water jet from acircular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components .Compo-
nentsd amaged in this way may fail unexpect-
edly. There is arisk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately.
!Under no circumstances use power washers
in the vehicle interior. The pressurized water
and associated spray produced by the power
washer could cause extensive damage to the
vehicle.
!When using high-pressure cleaning equip-
ment,m aintainaminimum distance of
approx. 1ft(30 cm) between the spray nozzle
and the vehicle parts. Do not use apower
washer with around-jet nozzle. You could
damage the vehicle or engine parts.
!Keep the water jet moving constantly while
cleaning. This will avoid causing damage to
the vehicle.
Do not point the water jet at:
Rdoor joints
Rrear view camera
Rair bellows
Rbrake hoses
Rwheel balance weights
Relectrical components
Relectrical connections
Rseals
Rdrive train, especially not at the intermedi-
ate bearing of the propeller shaft
Cleaning the engine
!Water must not enter intak eorventilation
openings. When cleaning with high pressure
water or steam cleaners, the spray must not
be aimed directly at electrical components or the terminals of electrical lines.
Preserve the engine after the engine has been
cleaned. Protectt he belt drive system from
exposure to the preservative agent.
Also observe the information under "Power
washers" (
Ypage 255).
Cleaning the paintwork
!Do not affix:
Rstickers
Rfilms
Rmagnetic plates or similar items
to painted surfaces. You could otherwise
damage the paintwork.
Scratches, corrosived eposits, areas affected by
corrosion and damage caused by inadequate
care cannot alwaysbec ompletely repaired. In
such cases, visit aqualified specialist workshop.
Care255
Maintenance and care
Z