2020 MERCEDES-BENZ METRIS wheel bolts

Always switch off the windshield wipers and
the ignition before cleaning the windshield
or wiper blades.
! Do not fold the windshield wipers away
from the windshield unless the hood is
closed. Otherwise, you could damage the
hood.
! Hold the wiper arm securely when folding
back. The windshield could be damaged if
the wiper arm smacks against it suddenly.
! Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the inside of the windows. Do
not touch the insides of the windows with
hard objects, e.g. an ice scraper or ring.
There is otherwise a risk of damaging the
windows.
! Clean the water drainage channels of the
windshield and the rear window at regular
intervals. Deposits such as leaves, petals
and pollen may under certain circumstances
prevent water from draining away. This can
lead to corrosion damage and damage to
electronic components.
X Clean the inside and outside of the windows
with a damp cloth and a cleaning agent that
is recommended and approved by
Mercedes-Benz. Exterior
Cleaning the wheels !
Do not use any acidic or alkaline cleaning
agents. They can cause corrosion on the
wheel bolts or the retainer springs for the
wheel-balancing weights.
! Do not park your vehicle for a long period
of time directly after cleaning, particularly
after cleaning the wheel rim with wheel
cleaner. Wheel cleaner can lead to the
increased corrosion of the brake discs and
pads. Therefore, drive for a few minutes
after cleaning. By heating up the brakes, the
brake discs and pads dry. The vehicle can
then be parked for a long period of time.
If you clean the wheels with a power washer,
observe the safety notes for the power washer (Y page 265). You could otherwise damage
the tires.
Cleaning the wiper blades G
WARNING
You could become trapped by the wind-
shield wipers if they start moving while
cleaning the windshield or wiper blades.
There is a risk of injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield
or wiper blades.
! Do not fold the windshield wipers away
from the windshield unless the hood is
closed. Otherwise, you could damage the
hood.
! Do not pull the wiper blade. Otherwise, the
wiper blade could be damaged.
! Do not clean wiper blades too often and
do not rub them too hard. Otherwise, the
graphite coating could be damaged. This
could cause wiper noise.
! Hold the wiper arm securely when folding
back. The windshield could be damaged if
the wiper arm smacks against it suddenly.
X Turn the SmartKey to position 0 in the igni-
tion lock or remove the SmartKey.
X Fold the windshield wiper arms away from
the windshield until you feel them engage.
X Carefully clean the wiper blades with a
damp cloth.
X Fold back the wiper arms before switching
on the ignition.
Cleaning the exterior lighting !
Only use cleaning agents or cleaning
cloths that are suitable for plastic lenses.
Caustic, irritant or otherwise unsuitable
cleaning agents or cleaning cloths could
scratch or damage the exterior lighting plas-
tic lenses.
i Inquire about suitable cleaning agents or
cleaning cloths at a specialist workshop.
X Clean the plastic lenses of the exterior light-
ing with a damp sponge and a mild cleaning266
Care
Maintenance and care

An arrow on the sidewall of the tire indicates
its correct direction of rotation.
You may mount a spare wheel against the
direction of rotation. Observe the time restric-
tion on use as well as the speed limitation
specified on the spare wheel. Storing wheels
Store wheels that are not being used in a cool,
dry and preferably dark place. Protect the tires
from contact with oil, grease and fuel. Mounting a wheel
Vehicle preparation X
Stop the vehicle as far away as possible
from traffic and on a level, firm and non-slip
surface.
X If your vehicle poses a risk to approaching
traffic, switch on the hazard warning lamps.
X Apply the parking brake.
X Turn the front wheels to the straight-ahead
position.
X Shift the transmission to position j.
X Switch off the engine.
X Passengers should leave the vehicle. Make
sure that the passengers are not endan-
gered as they do so.
X Make sure that no one is near the danger
area while the wheel is being changed. Any-
one who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Place the warning triangle or warning lamp
at a suitable distance.
Observe the legal requirements on the cor-
rect use of the warning triangle or warning
lamp for the country in which you are cur-
rently driving
X Secure the vehicle to prevent it from rolling
away.
Observe the safety notes on parking under
"Driving and parking"
(Y page 138)
X On level terrain: place chocks or other suit-
able objects under the front and rear of the
wheel that is diagonally opposite the wheel
to be changed. X
On slight inclines: place chocks or other
suitable objects under the wheels on the
front and rear axles opposite the wheel to
be changed.
X If included in the vehicle equipment, take
the tire-changing tool kit out of the vehicle
tool kit (Y page

270).
Apart from some country-specific variants,
vehicles are not equipped with tire-changing
tools. Some tools for changing a wheel are
specific to the vehicle. Consult a qualified
specialist workshop for more information on
which tools are required to perform a wheel
change on your vehicle.
X If included in the vehicle equipment, remove
the spare wheel from the spare wheel
bracket

(Y page 303). Observe the safety
notes listed under "Spare wheel"
(Y page 302).
X Carefully remove the hub caps. X
Using lug wrench :, loosen the wheel bolts
on the wheel to be changed counter-clock-
wise by about one full turn. Do not remove
the wheel bolts.
Raising the vehicle G
WARNING
If you do not position the jack correctly at
the appropriate jacking point of the vehicle,
the jack could tip over with the vehicle
raised. There is a risk of injury.
Only position the jack at the appropriate
jacking point of the vehicle. The base of the
jack must be positioned vertically, directly
under the jacking point of the vehicle. 298
Changing wheels
Wheels and tires

G
WARNING
On uphill and downhill slopes, the jack could
tip over with the vehicle raised. There is a
risk of injury.
Do not change wheels on uphill or downhill
gradients. Notify a qualified specialist work-
shop.
! Only position the jack on the jacking
points intended for this purpose. You could
otherwise damage the vehicle.
Observe the following when raising the vehi-
cle:
R To raise the vehicle, only use the vehicle-
specific jack that has been tested and
approved by Mercedes-Benz. If the jack is
used incorrectly, it could tip over while the
vehicle is raised.
R The vehicle's jack is intended only to raise
the vehicle for a short time when changing a
wheel. It is not suited for performing mainte-
nance work under the vehicle.
R Avoid changing the wheel on uphill and
downhill slopes.
R Before raising the vehicle, secure it from
rolling away by applying the parking brake
and inserting wheel chocks. Never disen-
gage the parking brake while the vehicle is
raised.
R The jack must be placed on a firm, flat and
non-slip surface. On a loose surface, a large,
load-bearing underlay must be used. On a
slippery surface, a non-slip underlay must
be used, e.g. rubber mats.
R Make sure that the distance between the
underside of the tires and the ground does
not exceed
1.2 in(3 cm).
R Never place your hands or feet under the
raised vehicle.
R Never lie under the raised vehicle.
R Never start the engine when the vehicle is
raised.
R Never open or close a door or the tailgate/
door when the vehicle is raised.
R Make sure that no persons are present in
the vehicle when the vehicle is raised. Jacking points : (rubber stoppers) are loca-
ted just behind the front wheel arches and just
in front of the rear wheel arches.
X Place jack ; beneath corresponding jack-
ing points :.
X Turn handwheel = until jack plate ; sits
securely on jacking point :.
X Make sure the base of jack ; is positioned
vertically beneath jacking point :.
X Assemble adapter ? and ratchet A from
the vehicle tool kit.
X Place adapter ? and ratchet A on the hex-
agon nut of jack ; so that the lettering
AB/DOWN is visible.
X Turn ratchet A in the AUF/UP direction
until the tire is a maximum of 3 cm off the
ground.
When doing so, jack ; may move to one of
the side support surfaces.
Removing a wheel !
Do not place wheel bolts in sand or on a
dirty surface. The bolt and wheel hub
threads could otherwise be damaged when
you screw them in.
X Unscrew the wheel bolts.
X Remove the wheel. Changing wheels
299
Wheels and tires Z

Mounting a new wheel
G
WARNING
Oiled or greased wheel bolts or damaged
wheel bolts/hub threads can cause the
wheel bolts to come loose. As a result, you
could lose a wheel while driving. There is a
risk of accident.
Never oil or grease wheel bolts. In the event
of damage to the threads, contact a quali-
fied specialist workshop immediately. Have
the damaged wheel bolts or hub threads
replaced/renewed. Do not continue driving. G
WARNING
If you tighten the wheel bolts or wheel nuts
when the vehicle is raised, the jack could tip
over. There is a risk of injury.
Only tighten the wheel bolts or wheel nuts
when the vehicle is on the ground.
Always observe the instructions and safety
notes on "Changing a wheel"
(Y page 297).
Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety rea-
sons, Mercedes-Benz recommends that you
only use wheel bolts which have been
approved for Mercedes-Benz vehicles and the
respective wheel.
! On vehicles equipped with a tire pressure
monitor, electronic components are located
in the wheel.
Tire-mounting tools should not be used near
the valve. This could damage the electronic
components.
Only have tires changed at a qualified spe-
cialist workshop. X
Clean the wheel and wheel hub contact sur-
faces.
X Slide the new wheel onto the wheel hub and
push it on.
X Screw in the wheel bolts and tighten them
lightly.
Lowering the vehicle G
WARNING
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened to the
prescribed tightening torque. There is a risk
of an accident.
Ensure that the wheel bolts or wheel nuts
are tightened to the prescribed tightening
torque.
If you are not sure, do not move the vehicle.
Contact a qualified specialist workshop and
have the tightening torque checked immedi-
ately. :—A
Wheel bolts
X Place the adapter and the ratchet on the
hexagon head nut of the jack such that the
lettering AB/DOWN is visible.
X Turn the ratchet in the AB/DOWN direction
until the vehicle is once again standing
firmly on the ground.
X Put the jack aside.
X Tighten the wheel bolts evenly in a cross-
wise pattern in the sequence indicated (:
to A).
Tighten the wheel bolts to the following
tightening torques:
R Steel wheel 147 lb-ft (200 Nm)
R Alloy wheel 133 lb-ft (180 Nm)300
Changing wheels
Wheels and tires

X
Turn the jack back to its out-of-use position.
X Stow the jack and the rest of the tire-
change tool kit in the vehicle again.
X Wheel with hub cap: position the opening
for the tire valve in the hub cap over the tire
valve.
X Push the edge of the hub cap with both
hands against the wheel until it clicks into
place. Make sure the hub cap retaining
catches engage on the steel wheel.
X If included in the vehicle equipment, secure
the faulty wheel in the spare wheel bracket
(Y page
303). Otherwise, transport the
faulty wheel in the cargo compartment.
X Check the tire pressure of the newly moun-
ted wheel and adjust it if necessary.
Observe the recommended tire pressure
( Y page

282).
Vehicles with the tire pressure monitor sys-
tem: all mounted wheels must be equipped
with functioning sensors.
X Retighten the wheel bolts or wheel nuts to
the specified tightening torque after the
vehicle has been driven for

30 miles
(50 km).
When using a wheel/spare wheel with a new
or newly painted wheel rim, have the wheel
bolts/nuts retightened again after approx-
imately

600 to 3,000 miles (1,000 to
5,000 km). Observe the specified tightening
torque. Wheel and tire combinations
General notes
! Retreaded tires are neither tested nor rec-
ommended by Mercedes-Benz, since previ-
ous damage cannot always be detected on
retreaded tires. As a result, Mercedes-Benz
cannot guarantee vehicle safety if retreaded
tires are mounted. Do not mount used tires
if you have no information about their previ-
ous usage.
! For safety reasons, Mercedes-Benz recom-
mends that you only use tires, wheels and accessories which have been approved by
Mercedes-Benz specifically for your vehicle.
These tires have been specially adapted for
use with the driving safety systems, such as
ABS or ESP
®
.
Only use tires, wheels or accessories tested
and approved by Mercedes-Benz. Certain
characteristics, e.g. handling, vehicle noise
emissions or fuel consumption, may other-
wise be adversely affected. In addition,
when driving with a load, tire dimension var-
iations could cause the tires to come into
contact with the bodywork and axle compo-
nents. This could result in damage to the
tires or the vehicle.
Mercedes-Benz accepts no liability for dam-
age resulting from the use of tires, wheels
or accessories other than those tested and
approved.
Further information on wheels, tires and
approved combinations can be obtained
from a qualified specialist workshop.
! Large wheels: the lower the section width
for a certain wheel size, the lower the ride
comfort is on poor road surfaces. Roll com-
fort and suspension comfort are reduced
and the risk of damage to the wheels and
tires as a result of driving over obstacles
increases.
You will find a table with the recommended
tire pressures for various vehicle loads on the
inside of your vehicle's fuel filler flap or under
"Tire pressure tables"

(Y page 289). You can
find further information under "Tire pressure"
( Y page 282).
Check tire pressures regularly and only when
the tires are cold.
Notes on the vehicle equipment – always
equip the vehicle:
R with tires of the same size across an axle
(left/right)
R with the same type of tires on all wheels at
a given time (summer tires, winter tires)
i Not all wheel/tire combinations can be
installed at the factory in all countries. Wheel and tire combinations
301
Wheels and tires Z