open hood MERCEDES-BENZ METRIS 2016 MY16 Operator’s Manual

Display messagesPossible causes/consequences andMSolutions
ÓAn additional warning tone sounds. The hoo disopen.
GWARNIN G
The open hoo dmay then bloc kyour vie wwhen th evehicl eisinm otion.
There is ariskofana ccident.
XStop thevehicl eimmediately, payin gattention to roa dand traffic
conditions.
XSecur ethe vehicl etopreventitfromr ollin gaway (Ypage 132).
XClosethe hood.
0An additional warning tone sounds while th evehicl eisinm otion.The
display shows th eopen door(s).
XClos eall doors.
Ð
Pwr .Steering Mal ‐
funct.+
An additional warning tone sounds. The steering powe rassistanc e
could be malfunctioning .You may need to steer mor eforcefully.
XCarefully continu etoaqualified specialist workshop and hav ethe
steering checke dimmediately.
Â
Obtain aNew Key
The ke yneeds to be replaced.
XVisit aqualified specialist workshop .
¥
Add Washer Fluid
The washer fluidlevel in th ewasher flui dreservoir has dropped belo w
th em inimum .
XAddw asher flui d(Ypage 246).
Displaymessages (vehicles withs teering wheel buttons)
Introd uction
Import ant safety notes
GWARNIN G
If th einstrumen tcluste rhas failed or malfunctioned, you may no trecogniz efunction restriction s
in systems relevan ttosafety. The operating safet yofyour vehicl emay be impaired. There is arisk
of an accident.
Drive on carefully. Hav ethe vehicl echecked ataq ualified specialist workshop immediately.
The on-boar dcom puter only shows message sorwarning sfromc ertai nsystems in th einstrumen t
cluste rdisplay. You should therefor emakes urey our vehicl eisoperating safely at all times .Ifthe
operating safet yofyour vehicl eisimpaired, stop th evehicl eass oonasp ossible, payin gattention
to roa dand traffic conditions. The nconsul taqualified specialist workshop .
Display message swithg raphic symbols are simplified in th eOperator' sManual and may differ from
th es ymbols in th edisplay. The display shows high-priorit ydisplay message sinred.Aw arning tone
sounds wit hcertai ndisplay messages.
Pleas erespon dinaccordanc ewitht he display message sand follow th eadditional note sinthis
Operator' sManual.
Display message s(vehicles wit hsteering whee lbuttons)20 1
On-board computera nd displays
Z

Engine
Display messagesPossible causes/consequences andMSolutions
#An additional warning tone sounds. The battery is no tbeingc harged.
Possible causes:
Rfault yalternator
Rtorn poly-V-belt
Ram alfunctio nintheelectronics
XStop th evehicle immediately, payinga ttention to road and traffic
conditions, and switch off th eengine.
!Do no tcontinue driving .The engine coul dotherwise overheat.
XSecure th evehicle to prevent it from rolling away (Ypage 132).
XConsult aqualified specialist workshop.
?
CoolantT oo Hot:StopVehicleT urnEngine Off
An additional warning tone sounds. The coolant is to ohot.
GWARNING
Never driv ewith an overheate dengine .Drivin gw hen th eengine is
overheate dcan caus efluids whichm ay have leaked int othe engine
compartmen ttocatch fire.
In addition,s team from an overheate dengine can caus eserious
burns, whichc an occur justbyopening th ehood.
Thereisar isk of injury.
XStop thevehicle immediately, payinga ttention to road and traffic
conditions, and switch off th eengine.
XSecure th evehicle to prevent it from rolling away (Ypage 132).
XWait until th eengine has cooled down.
XMakes ure that th eair supply to th eradiator is no tobstructed, by
frozen slush for example.
XDo no tstart th eengine again until th edisplay message goes out and
th ec oolant temperatur eisbelow th emaximum value specified. The
engine coul dotherwise be damaged.
XMonito rthe ? coolant temperatur egage in th einstrumen tclus-
ter.
XIf th etem peratur eincreases again,v isitaq ualified specialist work-
shop immediately.
Under normal operatin gconditionsa nd with thespecifie dcoolant
level, the ?gage may rise to 24 8‡(120† ).
Displa ymessages (vehicles with steerin gwheel buttons)211
On-boardc omputer and displays
Z

Display messagesPossible causes/consequences andMSolutions
ÒThe tailgateisopen.
XClos ethe tailgate.
ÑThe rear door is open .
XClosethe rear door(s).
ÓAn additional warning tone sounds. The hoo disopen.
GWARNIN G
The open hoo dmay then bloc kyour vie wwhen th evehicl eisinm otion.
There is ariskofana ccident.
XStop thevehicl eimmediately, payin gattention to roa dand traffic
conditions.
XSecur ethe vehicl etopreventitfromr ollin gaway (Ypage 132).
XClosethe hood.
CAn additional warning tone sounds while th evehicl eisinm otion.The
display shows th eopen door(s).
XClos eall doors.
Ð
Power Steering Mal ‐function See Oper.Manual
An additional warning tone sounds. The steering powe rassistanc e
could be malfunctioning .You may need to steer mor eforcefully.
XCarefully continu etoaqualified specialist workshop and hav ethe
steering checke dimmediately.
Â
Obtain aNew Key
The ke yneeds to be replaced.
XVisit aqualified specialist workshop .
Phone No ServiceYour vehicleisoutside th enetwork provider' stransmitter/receiver
range.
¥
Check Washer Fluid
The washer flui dlevel in th ewasher flui dreservoir has dropped belo w
th em inimum .
XAddw asher flui d(Ypage 246).
Indicatorand warning lamps in th einstrume nt cluster
Generaln otes
Whe nswitching on th eignition ,som esystems carry out aself-test .Som eindicator and warning
lamp smay temporarily tur nonorstart to flash. This is no tanindication of any problem .Onlyw hen
these indicator and warning lights tur nonorstart flashin gafter th eengineh as started or during th e
journey has amalfunction occurred .
218Indicator and warning lamps in th einstrument cluster
On-board computera nd displays

Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
?NThe red coolant warning lamp comes on while the engine is running.
The coolant leve listoo low.
If the coolant leve liscorrect, the airflow to the engine radiator may be blocked or
the electric engine radiator fan may be malfunctioning.
The coolant is too hot and the engine is no longer being cooleds ufficiently.
XObserve the display messages.
XStop the vehicleimmediately, paying attention to road and traffic conditions,
and switch off the engine.
XSecure the vehicletop revent it from rolling awa y(Ypage132).
XExit the vehiclea nd keepasafe distance from the vehicleu ntil the engine has
cooledd own.
XCheck the coolant leve land add coolant, observing the warning notes
(Ypag e244).
XIf you have to add coolant more frequently, have the engine cooling system
checked.
XMake sure that the air supply to the radiator is not obstructed ,byfrozen slush
for example.
XCheck the coolant temperature:
Rusing the display in the on-board computer on vehicles without steering wheel
buttons (Ypag e172)
Rusing the analog display in the instrument cluster on vehicles with steering
whee lbuttons (Ypag e37)
XDo not start the engine again until the coolant temperature is below the maxi-
mum valu especified below. The engine coul dotherwise be damaged.
XDrive to the neares tqualified specialist workshop.
Avoid heavy loads on the engine, e.g. driving in mountainous terrain, and stop-
and-go traffic.
Under normal operating conditions and with the specified coolant level, the cool-
ant temperature gage may rise to 248 ‡(120 †).
?NThe red coolant warning lamp comes on while the engine is running. An addi-
tional warning tone sounds.
The coolant temperature has exceededt he maximumvaluespecified below. The
airflow to the engine radiator may be blocked or the coolant leve lmay be too low.
GWARNING
The engine is not being cooleda dequately and couldbecome damaged.
Never drive with an overheated engine. Otherwise, fluids which may have leaked
into the engine compartment coul dcatch fire.
In addition, steam from an overheated engine can caus eserious burns, which can
occur just by opening the hood.
There is arisk of injury.
XObserve the display messages.
XStop the vehiclei mmediately, paying attention to road and traffic conditions,
and switch off the engine.
XSecure the vehicletop revent it from rolling awa y(Ypage 132).
224Indicator and warning lamps in the instrument cluster
On-board computer and displays

Useful information
This Operator's Manual describes all models as
well as standard and optional equipment of your
vehicle that were available at the time of going
to print.Country-specific variation sare possi-
ble. Note that your vehicle may not be equipped
with all of the described functions. This also
applies to system sand function srelevantt o
safety.
Read the information on qualified specialist
workshops (
Ypage 29).
Engine compartment
Hood
Important safetyn otes
GWARNING
If the hood is unlatched, it may open up when the vehicle is in motion and block your view.
There is arisk of an accident.
Never unlatc hthe hood while driving. Before
every trip, ensure that the hood is locked.
GWARNING
Openin gthe hood when the engin eisover-
heated or when ther eisafire in the engine
compartmen tcould expose you to hot gases
or other servicep roducts. There isarisk of
injury.
Let an overheated engin ecool down before
openin gthe hood. If ther eisafire in the
engin ecompartment, keep the hood closed
and contact the fire department.
GWARNING
The engin ecompartmen tcontains moving
components. Certain components, such as
the radiator fan, may continue to run or start
again suddenly when the ignition is off. There is ar isk of injury.
If you need to do any work inside the engine
compartment:
Rswitc hoff the ignition
Rneve rreach int othe area where ther eisa
risk of danger from movingc omponents,
such as the fan rotation area
Rremovej ewelry and watches
Rkeep items of clothing and hair, for exam-
ple, away from movingp arts
GWARNING
The ignition system operate swithahigh volt-
age. If you touc hthe live components, you
could receiv eanelectric shock.T here is an
increased risk of injury.
Never touc hcomponents of the ignition sys-
tem if:
Rthe engin eisrunning or being started
Rthe key is in radio position or drive position
in the ignition lock
The live components of the ignition system are,
for example:
Rignition coils
Rspark plug connectors
Rdiagnostic sockets
GWARNING
Certain components in the engin ecompart-
ment ,such as the engine, radiator and parts
of the exhaust system ,can becomev ery hot.
Working in the engin ecompartmen tposes a
risk of injury.
Where possible, let the engin ecool down and
touc honly the components described in the
following.
If you have to carry out work in the engin ecom-
partment ,only touc hthe following components:
RHood
ROil dipstick
REngine oil filler nec kcap
RWasher fluid reservoir cap
RCoolant expansion tan kcap
240Engine compartment
Maintenance and care

Opens the hood
GWARNING
Openingt he hood when the engine is over-
heated or when there is afire in the engine
compartment could expose you to hot gases
or other servicep roducts. There isarisk of
injury.
Let an overheated engine cool down before
opening the hood. If there is afire in the
engin ecompartment ,keep the hood closed
and contact the fire department.
GWARNING
Certain component sinthe engine compart-
ment ,such as the engine ,radiator and parts
of the exhaust system, can become very hot.
Workin ginthe engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the component sdescribed in the
following.
!Make sure that the windshield wipers are
not folded away from the windshield. You
could otherwise damage the windshield wip-
ers or the hood.
Observe the safety notes when you open the
hood.
XStop your vehicle as far away from traffic as
possible on level ground.
XSwitc hoff the engine.
XSecure the vehicle to preventitf rom rolling
away (Ypage 132).
XPull release handle :on the hood.
The hood is released.
XReach into the gap and push lever ;on the
hood catc htothe left.
XRaise the hood and hold it in that position.
XPull support strut ?out of retainer =and
guide it up in the direction of the arrow.
XLower the hood in such away that support
strut ?glides into recess Aand the hood
engages.
Closing the hood
GWARNING
Cloths or other flammable materials left in the
engin ecompartment can ignite if they come
into contact with the exhaust system or parts
of the engin ethat heat up. There is arisk of
fire. After carrying out maintenanc ework,
make sure that no extraneous flammable
material is left in the engin ecompartment or
on the exhaust system.
GWARNING
Openingt he hood when the engin eisover-
heated or when there is afire in the engine
compartment could expose you to hot gases
Engine compartment241
Maintenance and care
Z

or other service products. There isarisk of
injury.
Let an overheated engine cool down before
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,s uch 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, let the engine cool down and touch only the components described in the
following.
!Do not use your hands to push the hood
down. You could damage it otherwise.
XHold support strut ?and lift the hood
slightly.
XGuide support strut ?towards retainer =
and apply slight pressure to make it engage.
XLower the hood and allow it to fall with
momentum from aheight of approximately
1ft( 30 cm).
The hood locks audibly.
XCheck that the hood is correctly locked.
If the hood can be raised slightly, it is not
properly engaged. If the hood is not correctly
engaged, open the hood again. Let the hood
fall with alittle more momentum.
Overview of the engine compartment
Engin ecompartment (example)
:
Engin eoil filler neck cap (Ypage 242)
;Brake fluid reservoir cap (Ypage 245)
=Coolant expansion tank cap (Ypage 244)
?Washer fluid reservoir cap (Ypage 246)
Regularly check the fluid level and the assembly
for leaks. If you detect fluid loss, e.g. oil flecks on the vehicle parking space, consult aqualified
specialist workshop immediately.
Engine oil
General notes
!Engin eoil gets dirty in the course of opera-
tion and its quality and volume are gradually
diminished. Regularly check the oil level, and top up or have it replaced as needed.
Observe the information on approved engine
oils and oil consumption under "Service prod-
ucts and capacities" (
Ypage 298).
You can check the oil level in the engine:
Rwith the oil dipstick
Checking the oil level using the oil dip-
stick
GWARNING
Opening the hood when the engine is over-
heated or when there is afire in the engine
compartment could expose you to hot gases
or other service products. There is arisk of
injury.
Let an overheated engine cool down before
opening the hood. If there is afire in the
242Engine compartment
Maintenance and care

engine compartment,keep the hood closed
and contact the fire department.
GWARNING
Certain component sinthe engine compart-
ment ,such as the engine, radiator and parts
of the exhaust system, can become very hot.
Workin ginthe engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the component sdescribed in the
following.
Oil dipstick and engine oil filler neck
Only check the oil level when the engine is at
normal operatin gtemperature.
XStop your vehicle as far away from traffic as
possible on level ground.
XSecure the vehicle to preventitf rom rolling
away.
XSwitc hoff the engine.
XWait 5minutes.
XOpen the hood (Ypage 241).
XPull out oil dipstick :.
XWipe oil dipstick:using alint-free cloth.
XInserto il dipstick :back into the guide tube
as far as it will go and remove it again.
If the level is between MIN mark =and MAX
mark ;,the oil level is adequate.
XIf the oil level has dropped to or below mini-
mum mark =,open cap ?and add engine oil
(
Ypage 243).
The difference in quantit ybetween marks ;
and =is approximately 2USquarts (2 liters).
XClose the hood.
Add engine oil
GWARNING
Openingt he hood when the engine is over-
heated or when there is afire in the engine
compartment could expose you to hot gases
or other servicep roducts. There isarisk of
injury.
Let an overheated engine cool down before
opening the hood. If there is afire in the
engine compartment ,keep the hood closed
and contact the fire department.
GWARNING
Certain component sinthe engine compart-
ment ,such as the engine, radiator and parts
of the exhaust system, can become very hot.
Workin ginthe engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the component sdescribed in the
following.
GWARNING
If engine oil comes into contact with hot com- ponents in the engine compartment ,itmay
ignite. There is arisk of fire and injury.
Make sure that engine oil is not spilled nex tto
the filler neck .Let the engine cool down and
thoroughly clean the engine oil off the com-
ponents before starting the engine.
HEnvironmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful to
the environment.
!Do not add too much oil. adding too much
engine oil can result in damage to the engine
or to the catalytic converter. Have excess
engine oil siphoned off.
!Do not use any additives in the engine oil.
This could damage the engine.
Engine compartment243
Maintenance and care
Z

Engine oilfille rneck (example)
Observ ethe informatio nregarding approved
moto roilunder "Service products and capaci-
ties" (
Ypage 298).
XOpe nthe hoo d(Ypage 241).
XUnscrew and remove cap :.
XAdd engine oil.
XReplace cap:on the fille rneck and tighten.
Whe ndoing so, make sure thatt he cap
engages correctly.
XCheck the oill evel with the oild ipstick
(Ypage 242).
XClose the hood.
Coolant
GWARNING
Service products maybep oisonousand haz-
ardous to health .There is ariskofi njury.
Compl ywithi nstructions on the use, storage
and disposalofs erviceproducts on the labels
of the respective original containers. Always
stor eservic eproducts seale dintheiroriginal
containers. Alway skeeps ervic eproducts out
of the reach of children.
GWARNING
Opening the hoo dwhent he engine is over-
heated or when ther eisafireint he engine
compartment could expose yo utohot gases
or othe rservic eproducts. There is arisko f
injury.
Let an overheate dengine coo ldow nb efore
opening the hood. If ther eisafireint he
engine compartment, kee pthe hoo dclosed
and contact the fir edepart ment.
GWARNING
Certai ncomponents in the engine compart-
ment, such as the engine ,radiator and parts
of the exhaust system ,can become ver yhot.
Working in the engine compartment poses a
ris kofi njury.
Where possible, le tthe engine coo ldow na nd
touch onl ythe components describe dinthe
following.
Coolant contains glyco land is therefore poison-
ous. Als oobserve the safety notes under "Ser-
vic ep roducts and capacities" (
Ypage 295).
GWARNING
The engine cooling system is pressurized, par-
ticularly when the engine is warm. When
opening the cap ,you could be scalded by hot
coolant spraying out. There is ariskofi njury.
Let the engine coo ldow nb efore opening the
cap .Weare ye and hand protection when
opening the cap .Opent he cap slowly half a
tur ntoa llowpressure to escape.
Onlyc heck the coolant level and/or fil lthe cool-
ant if the vehicl eisonalevel surface and the
engine hasc ooleddown. The coolant tempera-
tur em ustbeb elow122‡(50 †).
!Check the engine cooling and heating sys-
tem regularly for leaks.
If al arge quantity of coolant is lost, have the
cause traced and rectifie dataqualified spe-
cialist workshop.
GWARNING
If antifreeze come sinto contact with hot com-
ponents in the engine compartment, it may
ignite .There is ariskoff irea nd injury.
Let the engine coo ldow nb efore yo uadd anti-
freeze .Makes uret hata ntifreeze is not spilled
next to the fille rneck. Thoroughl yclean the
antifreeze from components before starting
the engine.
244Engine compartment
Maintenance and care

!Take care not to spill any coolant on painted
surfaces. You could otherwise damage the
paintwork.
Example: cap and coolant expansion tank
Checkingt he coolant level
XStop your vehicle as far awayf rom traffic as
possible on level ground.
XSwitch off the engine.
XSecure the vehicle to prevent it from rolling
away.
XOpen the hood (Ypage 241).
XSlowly turn cap :half aturn counter-clock-
wise to allow excess pressure to escape.
XTurn cap :further and remove it from cool-
ant expansion tank ;.
XCheck the coolant level.
If the coolant is up to marker bar =in the
filler neck when cold, there is asufficient
amount of coolant in coolant expansion
tank ;.
If the coolant is approximately 0.59 in
(1.5 cm) above marker bar =in the filler neck
when warm, there is asufficient amount of
coolant in coolant expansion tank ;.
Adding coolant
XIf the coolant drops under marker bar =in
the filler neck, add coolant.
Observe the information on the correct cool-
ant mixture ratio and the required water qual-
ity under "Service products and capacities"
(
Ypage 300). To prevent damage to the
engine cooling system, use only approved
corrosion inhibitor/antifreeze that complies
with the Mercedes-Benz Specifications for
Service Products.
XReplace cap :and turn it clockwise to
tighten.
XStart the engine.
XSet the temperature in the vehicle interior to
the maximum output on the air-conditioning
system control panel.
XAfter approximately 5minutes ,switch off the
engine and allow it to cool down.
XCheck the coolant level againa nd add coolant
if necessary.
XClose the hood.
Brake fluid
GWARNING
Service products may be poisonous and haz-
ardous to health. There is arisk of injury.
Comply with instructionsont he use, storage
and disposalofs ervice products on the labels
of the respective original containers. Always
store service products sealed in their original
containers. Alwaysk eep service products out
of the reach of children.
GWARNING
Opening the hood when the engine is over-
heated or when there is afire in the engine
compartment could expose you to hot gases
or other service products. There is arisk of
injury.
Let an overheated engine cool down before
opening the hood. If there is afire in the
engine compartment,k eep the hood closed
and contact the fire department.
GWARNING
Certain componentsint he 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 down and
touch only the componentsd escribed in the
following.
Brake fluid is hazardous to health. Also observe the safety notes under "Service products and
capacities" (
Ypage 295).
Engine compartment245
Maintenance and care
Z