maintenance MERCEDES-BENZ METRIS 2018 MY18 Operator’s Manual

Cleaning the rear view camera
!Do not use dry, coarse or hard cloths and do
not scrub. You could otherwise scratch or
damage the lens of the rear view camera.
When cleaning the vehicle with a high-pres-
sure or steam cleaner, observe a minimum
distance of 1.6 ft (50 cm) to the rear view
camera. Do not aim directly at the rear view
camera. You could otherwise damage the rear
view camera.
Make sure that you do not apply any wax to
camera lens when waxing the vehicle. If neces-
sary, remove the wax using water, shampoo and a soft cloth.
Vehicles with rear doors
XClean camera lens :with clean water and a
soft cloth.
Vehicles with a tailgate
XMake sure that the engine is switched off and
the key is in position 2in the ignition lock.
XEngage reverse gear or shift the transmission
to position k.
The rear view camera flap opens.
XClean camera lens :with clean water and a
soft cloth.
Cleaning the sliding door
The care instructions do not apply to electric
sliding doors.
XRemove foreign objects from the vicinity of
contact surfaces ;and contact pins :of
the sliding door.
XClean contact surfaces ;and contact
pins :with a mild cleaning agent and a soft
cloth.
Do not oil or grease contact plates ;or con-
tact pins :.
Cleaning the trailer tow hitch
HEnvironmental note
Dispose of rags soaked in oil and grease in an
environmentally responsible manner.
!Do not clean the ball coupling with a power
washer. Do not use solvents.
!Observe the notes on additional care for the
trailer tow hitch (see the manufacturer's oper-
ating instructions).
You can also have the maintenance work on the ball coupling and the trailer tow hitch carried out
by a qualified specialist workshop.
Interior
Cleaning the interior
!When using liquids to clean the vehicle inte-
rior, observe the following points:
RUnder no circumstances use power wash-
ers.
RMake sure that no fluids enter or remain in
gaps and cavities.
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Maintenance and care
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REnsure sufficient ventilation when clean-
ing.
RMake sure that the vehicle interior is com-
pletely dry after cleaning.
Cleaning the display
!For cleaning, do not use any of the following:
Ralcohol-based thinner or gasoline
Rabrasive cleaning agents
Rcommercially-available household cleaning
agents
These may damage the display surface. Do
not put pressure on the display surface when
cleaning. This could lead to irreparable dam-
age to the display.
XSwitch off the display and let it cool down.
XClean the display surface with a commercially
available microfiber cloth and cleaner for
TFT/LCD displays.
XDry the display surface using a dry microfiber
cloth.
Cleaning the plastic trim
GWARNING
Care products and cleaning agents containing solvents cause surfaces in the cockpit to
become porous. As a result, plastic parts may
come loose in the event of air bag deploy-
ment. There is a risk of injury.
Do not use any care products and cleaning
agents to clean the cockpit.
!Never attach the following to plastic surfa-
ces:
Rstickers
Rfilms
Rperfume oil container or similar
You could otherwise damage the plastic.
!Do not allow cosmetics, insect repellent or
sunscreen to come into contact with the plas-
tic trim. This maintains the high-quality look of
the surfaces.
XWipe the plastic trim and the cockpit with a
damp, lint-free cloth, e.g. a microfiber cloth.
XHeavy soiling: use mild soapy water or care
products and cleaning agents recommended
and approved by Mercedes-Benz.
Cleaning the steering wheel and selec-
tor lever
XThoroughly wipe with a damp cloth.
XVehicles with leather upholstery: after
cleaning, use leather care agents that have
been recommended and approved by
Mercedes-Benz.
Cleaning the trim elements
!Do not use solvent-based cleaning agents
such as tar remover, wheel cleaners, polishes
or waxes. There is otherwise a risk of damag- ing the surface.
XWipe the trim elements with a damp, lint-free
cloth, e.g. a microfiber cloth.
XHeavy soiling: use care products and clean-
ing agents recommended and approved by
Mercedes-Benz.
Cleaning the seat covers
!Do not use microfiber cloths to clean genu-
ine leather or artificial leather covers. If used
often, a microfiber cloth can damage the
cover.
!Clean:
Rartificial leather covers with a cloth mois-
tened with a solution containing 1 %deter-
gent, e.g. dish washing liquid.
Rcloth covers with a microfiber cloth mois-
tened with a solution containing 1 %deter-
gent, e.g. dish washing liquid. Wipe entire
seat sections carefully to avoid leaving visi-
ble lines. Leave the seat to dry afterwards.
Cleaning results depend on the type of dirt
and how long it has been there.
Rgenuine leather covers carefully with a
damp cloth, then wipe the covers down
with a dry cloth. Make sure that the leather does not become soaked. Otherwise, the
leather could become rough or cracked.
Only use leather care agents that have
been tested and approved by Mercedes-
270Care
Maintenance and care

Benz. You can obtain these from a qualified
specialist workshop.
iPlease keep in mind that:
Rleather covers are a natural product and, as
such, are subject to a natural aging proc-
ess. Leather may react differently, e.g.
increased wrinkling, to certain environmen-
tal influences (such as high humidity or
intense heat).
Rregular care is essential to make sure that
the appearance and comfort of the covers
are retained over time.
To clean genuine leather covers:
XRemove any dust, crumbs etc. If necessary,
carefully vacuum-clean the seat covers.
XCarefully wipe the leather seat covers with a
damp cloth.
XWipe over again with a dry cloth.
Make sure that the leather does not become
soaked, especially perforated parts.
XThen treat the leather seats with a leather
care foam.
Only use leather care agents that have been
tested and approved by Mercedes-Benz.
Observe the manufacturer's instructions.
Cleaning the seat belts
GWARNING
Seat belts can become severely weakened if
bleached or dyed. This could cause the seat
belts to tear or fail, for instance, in the event of an accident. This poses an increased risk of
injury or fatal injury.
Never bleach or dye the seat belts.
!Do not clean the seat belts using chemical
cleaning agents. Do not dry the seat belts by
heating at temperatures above 176 ‡(80 †)
or in direct sunlight.
Remove any stains or dirt immediately. This will
avoid residue or damage.
XUse clean, lukewarm water and soap solution.
Cleaning the headliner and carpets
XHeadliner: if it is very dirty, use a soft brush or
dry shampoo.
XCarpets: use the carpet and textile cleaning
agents recommended and approved by
Mercedes-Benz.
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Maintenance and care
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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 variations are possi-
ble. Note that your vehicle may not be equipped
with all of the described functions. This also
applies to systems and functions relevant to
safety.
Read the information on qualified specialist
workshops (
Ypage 31).
Where will I find...?
Vehicle tool kit
General notes
Depending on the equipment version of the vehi- cle, the vehicle tool kit is:
Rin the seat base of the left front seat
Rin the rear stowage compartment
Rin the tool holder in the cargo compartment
Apart from some country-specific variants, vehi-
cles without a spare wheel are not equipped
with tire-changing tools. If your vehicle is equip-
ped with tire-changing tools, these are in the
vehicle tool kit. If the vehicle tool kit is stowed in
the driver's seat base, the jack is in a separate
holder in the cargo compartment on the right-
hand side of the vehicle next to the tailgate/rear door (
Ypage 274).
Some tools for changing a wheel are specific to
the vehicle. For more information on which tools are required and approved to perform a wheel
change on your vehicle, consult a qualified spe-
cialist workshop.
Necessary tire-changing tools can include, for
example:
Rjack
Rlug wrench
Rratchet wrench
iThe jack has a maximum weight of 7.5 kg
depending on the vehicle's equipment.
The maximum payload of the jack can be
found on the sticker on the jack itself.
The jack is maintenance-free. In the event of a malfunction, please contact a qualified spe-
cialist workshop.
Stowage compartment in the seat base
Stowage compartment in the seat base of the left
front seat
XTo open: press both latching springs :down
and release cover ;upwards from the seat
base.
XRemove cover ;by pulling upwards at an
angle from the seat base.
XRemove the clamping strap and remove the
vehicle tool kit.
For vehicles equipped with tire-changing
tools, the jack is in a separate holder in the
cargo compartment on the right-hand side of
the vehicle next to the tailgate/rear door
(
Ypage 274).
XTo close: after stowing the vehicle tool bag,
insert cover ;in front of the stowage com-
partment in the seat base and fold shut.
Latching springs :of cover ;must engage
audibly.
Stowage compartment in the rear
Opening/closing the stowage compart-
ment
Stowage compartment in the rear on the right-hand
side of the vehicle
272Where will I find...?
Breakdown assistance

For further information on displaying the current
tire pressures, refer to "Checking the tire pres-
sure electronically" (
Ypage 288).
Important safety notes
GWARNING
Each tire, including the spare (if provided),
should be checked at least once a month
when cold and inflated to the pressure rec-
ommended by the vehicle manufacturer on
the Tire and Loading Information placard on
the driver's door B-pillar or the tire pressure
label on the inside of the fuel filler flap. If your
vehicle has tires of a different size than the
size indicated on the Tire and Loading Infor-
mation placard or the tire pressure label, you
should determine the proper tire pressure for
those tires.
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pres-
sure telltale when one or more of your tires
are significantly underinflated. Accordingly,
when the low tire pressure telltale illuminates,
you should stop and check your tires as soon
as possible, and inflate them to the proper
pressure. Driving on a significantly underin-
flated tire causes the tire to overheat and can lead to tire failure. Underinflation also
reduces fuel efficiency and tire tread life, and
may affect the vehicle's handling and stop-
ping ability.
Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the driv-
er's responsibility to maintain correct tire
pressure, even if underinflation has not
reached the level to trigger illumination of the
TPMS low tire pressure telltale.
USA only:
Your vehicle has al so b
een equipped with a
TPMS malfunction indicator to indicate if the
system is not operating properly. The TPMS
malfunction indicator is combined with the
low tire pressure telltale. When the system
detects a malfunction, the warning lamp will
flash for approximately a minute and then
remain continuously illuminated. This
sequence will be repeated every time the vehi-
cle is started as long as the malfunction
exists.
When the malfunction indicator is illuminated,
the system may not be able to detect or signal
low tire pressure as intended. TPMS malfunc-
tions may occur for a variety of reasons,
including the mounting of incompatible
replacement or alternate tires or wheels on
the vehicle that prevent the TPMS from func-
tioning properly. Always check the TPMS mal-
function telltale after replacing one or more
tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels
allow the TPMS to continue to function prop-
erly.
It is the driver's responsibility to set the tire
pressure to the recommended cold tire pressure
suitable for the operating conditions
(
Ypage 282).
Note that the correct tire pressure for the cur-
rent operating conditions must first be pro-
gramed into the tire pressure monitor. If a sub-
stantial pressure loss occurs, the warning
threshold for the warning message is aligned to
the taught-in reference values. Restart the tire
pressure monitor after adjusting the cold tire
pressure (
Ypage 289). The current pressures
are saved as new reference values. This will
ensure that a warning message will only appear
if the tire pressure drops significantly.
The tire pressure monitor does not warn you if a
tire pressure is incorrect. Observe the notes on
the recommend
ed tire pressure (Ypage 282).
The tire pressure monitor is not able to warn you
of a sudden loss of pressure, e.g. following pen- etration by a foreign object. In this event, brake
the vehicle until it comes to a standstill. Avoid
sudden steering movements.
The tire pressure monitor has a yellow h
warning lamp in the instrument cluster for indi-
cating pressure loss/malfunctions (USA) or
pressure loss (Canada). Depending on how the
warning lamp flashes or lights up, an underin-
flated tire or a malfunction in the tire pressure
monitor is displayed:
Rif the h warning lamp is lit continuously,
the tire pressure on one or more tires is sig-
Tire pressure287
Wheels and tires
Z

Additives
!Do notuse any additive sin th eengin eoil.
This could damag eth eengine.
Engine oil viscosity
!If th eSA Eviscosit yclas sof th eengin eoil
used does no tcover th eoutside temperature
range in whic hyou are operating th evehicle,
it mus tbe changed in goo dtime, in particular
before th ecold season commences. Using an
engin eoil that does no thav eadequate tem-
peratur echaracteristics can lead to engin e
damage.
The temperature range information of th eSA E
classification always refers to that of fresh oil.
The temperature characteristics of th eengin e
oil may deteriorat esignificantly due to agin g
in use, especially at low outside tempera-
tures.
We recommen dthat you chang eth eengin e
oil before th ecold season commences. Use
an approve dengin eoil of th especifie dSA E
class.
Engin eoil SA Eclassification
Viscosit yindicates th eflo wcharacteristics of a
fluid .If an engin eoil has ahigh viscosity, this
mean sthat it is thick ; alow viscosit ymean sthat
it is thin.
Dependin gon th erespective outside tempera-
tures, select an engin eoil according to SA E
classification (viscosity). The table displays th e
SA Eclassification to be used .The low temper-
atur echaracteristics of engin eoils can notice -
ably deteriorat eduring operation ,e.g. from
aging, soo tand fuel accretion .Fo rthis reason ,
regular oil changes usin gan approve dengin eoil
from th esuitable SA Eclassification are urgently
recommended.
Oil change
Oil chang eintervals depend on th evehicle's
operating condition sand th equalit yof th e
engin eoil used .The on-board computer auto -
matically shows th edat efor th enext oil chang e
as an event message in th edisplay.
Mercedes-Benz recommends having th eoil
changed at aqualified specialist workshop .
Information about oil consump tion
Dependin gon th edrivin gstyle, th evehicl econ-
sumes amaximum of 1. 0US qt (1. 0l)of engine
oil over a distance of 620 miles (1,000 km).
Oil consumption may be higher if:
RThe vehicle is new.
RYou mainly operate the vehicle under arduous
operating conditions.
RYou frequently drive at high engine speeds.
Regular maintenance is one of the preconditions
for moderate rates of consumption.
You can only estimate the oil consumption after
you have driven a considerable distance.
Check the engine oil level on a regular basis, e.g.
weekly or each time you refuel (
Ypage 254).
Transmission oil
Automatic transmission
Operating fluid: automatic transmission
fluid
Product name/numberMaintenance interval
Mobil ATF 134 FE
Valvoline ATF Pro 236.15
MB Sheet No. 236.15—
More information can be obtained at any quali-
fied specialist workshop.
310Service products and capacities
Technical data

Rear axle
Operating fluid: transmission oil
Product name/numberMaintenanceinterval
Mobilube FE 75W-85
Mobilube FE Plus NG
75W-85
MB Sheet No. 235.7—
More information can be obtained at any quali-
fied specialist workshop.
Brake fluid
GWARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident.
You should have the brake fluid renewed at
the specified intervals.
!Brake fluid corrodes paint, plastic and rub-
ber. If paint, plastic or rubber has come into
contact with brake fluid, rinse with water
immediately.
When handling, storing and disposing of brake
fluid, please observe the relevant regulations
and the important safety notes for service prod-
ucts (
Ypage 306).
Over a period of time, the brake fluid absorbs
moisture from the air. This reduces its boiling
point.
Have the brake fluid replaced at specified inter-
vals by a qualified specialist workshop.
iThere is usually a notice in the engine com-
partment to remind you when the next brake
fluid change is due.
Use only approved brake fluids that comply with the Mercedes-Benz Specifications for Service
Products. Always check for the identification
DOT 4 plus. Information about approved brake fluids can be
obtained:
Ron the Internet at
http://bevo.mercedes-benz.co m.
Coolant
Important safety notes
GWARNING
If antifreeze comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Let the engine cool down before you add anti-
freeze. Make sure that antifreeze is not spilled
next to the filler neck. Thoroughly clean the
antifreeze from components before starting
the engine.
!Take care not to spill any coolant on painted
surfaces. You could otherwise damage the
paintwork.
When handling, storing and disposing of coolant
and antifreeze, please observe the relevant reg-
ulations and the important safety notes for oper-
ating fluids (
Ypage 306).
Coolant additive with corrosion and
antifreeze protection
!Use only approved antifreeze/corrosion
inhibitor that complies with MB Specification for Service Products, Sheet Number 325.
Using other, non-approved antifreeze/corro-
sion inhibitors may cause damage to the cool-
ant system and reduce the engine's service
life.
The coolant is a mixture of water and antifreeze
and corrosion inhibitor. It performs the following
tasks:
RAnti-corrosion protection
RAntifreeze protection
RRaises the boiling point
When the vehicle is first delivered, it is filled with
a coolant mixture that ensures adequate anti-
freeze/corrosion protection. Coolant must
remain in the engine cooling system all year
round to ensure anti-corrosion protection and a
higher boiling point, even in countries with high
outside temperatures.
Service products and capacities311
Technical data
Z

Check the antifreeze/corrosion inhibitor con-
centration inthe coolant every six months.
The percentage of corrosion inh ibitor/ant i-
freeze additiveinthe engine co oling system
should:
Rbe at least 50 %.This way, the engine co oling
system isprotected against freezing downto
approximate ly-35 ‡ (-37 †).
Rnot exceed 55% (antifreeze protection down
to -49 ‡ [-45 †]). Other wise, heat will not be
dissipated as effectively.
Mercedes-Benz recommends an antifreeze and
corrosion inhibitor that meets the requirements
in the Mercedes-Benz Specifications for Service
Products Sheet Number 325.
More information can be obtained at any quali-
fied specialist workshop.
Operating fluid: coolant
Product name/number
Zerex G40-91, The Valvoline Company
MB Sheet No. 325.5
Maintenance interval
Have the coolant replaced at specified intervals
by a qualified specialist workshop.
Capacities
Engine cooling system
CoolantApprox. 11 US qt (10.4 l)
Climate control system refrigerants
Important safety notes
The climate control system of your vehicle is fil-
led with the refrigerant R‑ 134a.
The warning label for the refrigerant being used
can be found on the radiator cross member.
!Only the refrigerant R ‑134a and the PAG oil
approved by Mercedes-Benz may be used.
The approved PAG oil may not be mixed with
any other PAG oil that is not approved for
R-134a refrigerant. Otherwise, the climate
control system may be damaged. Maintenance work such as adding refrigerant or
replacing components may only be carried out
by a qualified specialist workshop. All applicable
regulations thereto and the SAE standard J639
must be adhered to.
All work on the climate control system should
always be carried out at qualified specialist
workshop.
Refrigerant warning label
Refrigerant warning label (example)
:
Warning symbols
;Refrigerant capacity
=Applicable standards
?Part number PAG oil
AType of refrigerant
Warning symbols :refer to:
Rpossible dangers
Rthe implementation of maintenance work at a
qualified specialist workshop
Capacities
Front-compartment
air-conditioning
systemCapacity
Refrigerant21.2 oz
(600 g)
PAG oil2.8 oz (79 g)
312Service products and capacities
Technical data