MERCEDES-BENZ EQS 2023 Owners Manual

to tread quality, tire traction and temperature
characteristics. The quality grading assessment is
made by the manufacturer following speciNcations
from the U.S. government. The quality grade of a
tire is printed on the side wall of the tire.
Recommended tire pressure: the recommended
tire pressure is the tire pressure speciNed for the
tires mounted on the vehicle at the factory.
The tire and information placard contains the rec-
ommended tire pressure for cold tires, the maxi- mum permissible load and the maximum permissi-
ble vehicle speed.
The tire pressure table contains the recommen-
ded tire pressure for cold tires under various oper-
ating conditions, i.e. loading and/or speed of the vehicle.
Increased vehicle weight due to optional equip- ment: the combined weight of all standard and
optional equipment available for the vehicle, regardless of whether it is actually installed on the
vehicle or not.
Rim: the part of the wheel on which the tire is
installed.GAWR (Gross Axle Weight Rating): the GAWR is
the maximum gross axle weight rating. The actual
load on an axle must never exceed the gross axle
weight rating. The gross axle weight rating can be
found on the vehicle identiNcation plate on the
B!

Maximum load on one tire: maximum load on one
tire. This is calculated by dividing the maximum axle load of one axle by two.
PSI (pounds per square inch): standard unit of
measurement for tire pressure.
Aspect ratio: ratio between tire height and tire
width in percent.
Tire pressure: the pressure inside the tire which
applies an outward force to every square inch of
the tire. The tire pressure is speciNed in pounds
per square inch (psi), in kilopascals (kPa) or in bar. The tire pressure should only be corrected whenthe tires are cold.
Cold tire pressure: the tires are cold when the
vehicle has been parked for at least 3 hours with- out direct sunlight on the tires or the vehicle has
been driven for less than 1 mile (1.6 km).
Tire contact surface: the part of the tire that
comes into contact with the road.
Tire bead: the purpose of the tire bead is to
ensure that the tire sits securely on the wheel rim. There are several wire cores in the tire bead toprevent the tire from changing length on thewheel rim.Side wall: the part of the tire between the tread
and the tire bead.
Weight of optional equipment: the combined
weight of the optional equipment weighing more
than the replaced standard parts and more than 5 lbs (2.3 kg). This optional equipment, such ashigh-performance brakes, level control system, a
roof luggage rack or high-performance batteries,
is not included in the curb weight and the weight of the accessories.
TIN (Tire *dentiNcation Number): a unique identiN-
cation number which can be used by a tire manu-
facturer to identify tires, for example, in a product recall, and thus identify the purchasers. The TIN is
made up of the manufacturer\bs identity code, tire
size, tire type code and the manufacturing date.
Load-bearing index: the load-bearing index is a
code that contains the maximum load-bearing capacity of a tire.
Traction: traction is the grip resulting from friction
between the tires and the road surface.
Wear indicator: narrow bars (tread wear bars) that
are distributed over the tire contact surface. If thetire tread is level with the bars, the wear limit of 1/16 in (1.6 mm) has been reached.
Distribution of vehicle occupants: distribution of
vehicle occupants over designated seat positions
in a vehicle.
Maximum permissible payload weight: nominal
load and luggage load plus 150 lb (68 kg) multi- plied by the number of seats in the vehicle.
Changing a wheel
Notes on selecting, installing and replacing tires
*NOTE Mercedes-AMG vehiclesObserve the notes in the Supplement.
You could otherwise fail to recognize
dangers.&WARNING Risk of accident due to incor-
rect wheel and tire dimensions
If wheels and tires of the wrong size are instal-
led, the service brakes or components in the
420Wheels and tires

brake system and in the wheel suspension
may be damaged.Always replace wheels and tires with
ones that fulNll the speciNcations of the
original part.
For wheels, pay attention to the following:
= Designation
= Type
For tires, pay attention to the following: = Designation
= Manufacturer
= Type
&WARNING Risk of injury through exceed-
ing the speciNed tire load-bearing capa-
city or the permissible speed rating
Exceeding the speciNed tire load rating or the
permissible speed rating may lead to tire dam-
age and to the tires bursting.
Therefore, only use tire types and sizes
approved for your vehicle model.Observe the tire load rating and speed
rating required for your vehicle.*NOTE Vehicle and tire damage caused by
non-approved tire types and sizes
For safety reasons, only use tires, wheels and
accessories which have been specially
approved by Mercedes-Benz for your vehicle.
These tires are specially adapted to the active safety systems, such as ABS, ESP n
and
4MATIC, and marked as follows:
= MO = Mercedes-Benz Original
= MOE = Mercedes-Benz Original Extended
(run-Oat tires only for certain wheels)
= MO1 = Mercedes-Benz Original (only cer-
tain AMG tires)
Otherwise, certain properties, such as han-
dling characteristics, vehicle noise emissions,
consumption, etc. could be adversely aMec-
ted. Furthermore, other tire sizes could result
in the tires rubbing against the body and axle
components when loaded. This could result in
damage to the tire or the vehicle.
Only use tires, wheels and accessories that have been checked and recommended by
Mercedes-Benz.*NOTE Risk to driving safety from retrea-
ded tires
Retreaded tires are neither tested nor recom- mended by Mercedes-Benz, since previous
damage cannot always be detected on retrea-
ded tires.
For this reason driving safety cannot be guar-
anteed.
Do not use used tires if you have no information about their previous usage.*NOTE Possible wheel and tire damage
when driving over obstacles
Large wheels have a smaller section width. As
the section width decreases, the risk of
Wheels and tires421

wheels and tires being damaged when driving
over obstacles increases.Avoid obstacles or drive especially care-
fully.Reduce your speed when driving over
curbs, speed bumps, manhole covers and potholes.Avoid particularly high curbs.*NOTE Possible wheel and tire damage
when parking on curbs or in potholes
Parking on curbs or in potholes can damage
the wheels and tires.
Only park on as level a surface as possi-
ble.Avoid curbs and potholes when parking.*NOTE Damage to electronic component
parts due to the use of tire-installing tools
Vehicles with tire pressure monitoring sys-
tem: There are electronic component parts in
the wheel.
If tire-installing tools are positioned in the area
of the valve, the electronic components could be damaged.Tire-installing tools should not be applied
in the area of the valve.Always have tires change at a qualiNed
specialist workshop.*NOTE Damage to summer tires at low
ambient temperatures
At low ambient temperatures, tears could form
when driving with summer tires, causing per-
manent damage to the tires.
At temperatures below 45 °F (7 °C) use M M\fS tires.
Accessory parts which are not approved for your
vehicle by Mercedes-Benz, or which are not used
correctly, can impair the operating safety.
Before purchasing and using non-approved acces-
sories, visit a qualiNed specialist workshop and
inquire about:
= Suitability
=Legal stipulations
= Factory recommendations&WARNING Risk of accident with high per-
formance tires
The special tire tread in combination with the
optimized tire compound means that the risk of skidding and hydroplaning on wet roads is
increased.
In addition, the tire grip is greatly reduced at a
low outside temperature and tire running tem-
perature.
Switch on the ESP n
and adapt your driv-
ing style accordingly.Use M M\fS tires at outside tempera-
tures of less than 50 °F (10 °C).Only use the tires for their intended pur-
pose.422Wheels and tires

Observe the following when selecting, installing
and replacing tires:
= Furthermore, the use of certain tire types in
certain regions and areas of operation can be
highly beneNcial.
= Only use tires and wheels of the same type
(summer tires, winter tires, MOExtended tires)
and the same make.
= Only install wheels of the same size (les and
right) on each axle.
It is only permissible to install a diMerent
wheel size in the event of a Oat tire in order to
drive to the specialist workshop.
= Vehicles with a tire pressure monitoring sys-
tem: all installed wheels must be equipped
with functioning sensors for the tire pressure
monitoring system.
= At temperatures below 45°F (7°C) use winter
tires or all-season tires marked M M\fS for
all wheels.
Winter tires provide the best possible grip in
wintry road conditions.= For M\fS tires, only use tires with the same
tread.
= Observe the maximum permissible speed for
the M\fS tire which is installed.
If the tire\bs maximum speed is below that of
the vehicle, this must be indicated by an
appropriate label in the driver\bs Neld of vision.
= Break in new tires at moderate speeds for the
Nrst 60 miles (100 km).
= Replace the tires aser six years at the latest,
regardless of wear.
= When replacing with tires that do not feature
run-Oat characteristics: vehicles with
MOExtended tires are not equipped with a
TIREFIT kit at the factory. Equip the vehicle with a TIREFIT kit aser replacing with tires that
do not feature run-Oat characteristics, e.g.
winter tires.
For more information on wheels and tires, contact
a qualiNed specialist workshop.
Be sure to also observe the following further rela-
ted subjects:
= Notes on tire pressure (  page 404)=
Tire and loading information placard
(  page 409)
= Tire size designation, load-bearing capacity,
speed rating and load index (  page 416)
= Tire pressure table (  page 405)
= Notes on the emergency spare wheel
(  page 430)
Notes on rotating wheels
&WARNING Risk of injury through diMerent
wheel sizes
Rotating the front and rear wheels can
severely impair the driving characteristics.
The wheel brakes or suspension components
may also be damaged.
Rotate front and rear wheels only if the
wheels and tires are of the same dimen-
sions.
Observe the instructions and safety notes on
"Changing a wheel" (  page 420)
Wheels and tires423

The wear patterns on the front and rear wheels
diMer:
= Front wheels wear more on the tire shoulder
= Rear wheels wear more in the center of the
tire
Do not drive with tires that have too little tread
depth. This signiNcantly reduces traction on wet
roads (hydroplaning).
On vehicles that have the same size front and rear
wheels, rotate the wheels according to the inter- vals in the tire manufacturer\bs warranty book in
your vehicle documents. If this is not available, rotate the tires every 3,000 to 6,000 miles(5,000 to 10,000 km), depending on the wear.Ensure that the direction of rotation is main-
tained.
Notes on storing wheels
When storing wheels, observe the following notes:
= Aser removing wheels, store them in a cool,
dry and preferably dark place.
= Protect the tires from contact with oil, grease
or fuel.
Overview of the tire-change tool kit*NOTE Mercedes-AMG vehiclesObserve the notes in the Supplement.
You could otherwise fail to recognize
dangers.
Apart from some country-speciNc variants, vehi-
cles are not equipped with a tire-change tool kit. Consult a qualiNed specialist workshop to Nnd out
which wheel change tools are necessary and
approved for changing the wheel on your vehicle.
You will require the following tools, for example, to
change a wheel:
= Jack
= Chock
= Lug wrench
= Alignment bolt
The tire-change tool kit is located in tool bag 1
in the trunk.
\bDepending on the vehicle equipment, the tool
bag may be located in other positions in the
trunk.\bWhen stowing the tool bag, make sure that it is adequately secured.
The tool bag contains:
= Jack
= Gloves
= Lug wrench
= Alignment bolt
= Folding chock
= Ratchet for jack
424Wheels and tires

Preparing the vehicle for a wheel change
Requirements
= The vehicle is not on a slope.
= The vehicle is on solid, non-slippery and level
ground.
= The required tire-change tool kit is available.
\bIf your vehicle is not equipped with the tire-
change tool kit, consult a qualiNed specialist
workshop to Nnd out about suitable tools.Apply the electric parking brake manually.Move the front wheels to the straight-ahead
position.Shis the transmission to position ].Switch oM the vehicle.Make sure that the vehicle cannot be started.Place chocks or other suitable items under the
front and rear of the wheel that is diagonally
opposite the wheel you wish to change.Unload the vehicle.Removing and installing the wheel trim/hub caps
Requirements
= The vehicle is prepared for a wheel change
(  page 425).
Wheel trim
The wheel trim covers the wheel bolts on vehicles
with aluminum wheels. Before unscrewing the wheel bolts, remove the wheel trim.
To remove: using both hands, carefully reach
into two wheel trim openings and remove the wheel trim.To install: place the wheel trim in position and
press Nrmly until it engages.Raising the vehicle when changing a wheel
Requirements
= There are no persons in the vehicle.
= The vehicle has been prepared for a wheel
change (  page 425).
Important notes on using the jack: = Use only a vehicle-speciNc jack that has been
approved by Mercedes-Benz to raise the vehi-
cle.
= The jack is only designed for raising and hold-
ing the vehicle for a short time while a wheel is being changed and not for maintenance
work under the vehicle.
= The jack must be placed on a Nrm, Oat and
non-slip surface. If necessary, use a large, Oat,
load-bearing, non-slip underlay.
= The foot of the jack must be positioned verti-
cally under the jack support point.
Wheels and tires425

Rules of conduct when the vehicle is raised:= Never place your hands or feet under the vehi-
cle.
= Never lie under the vehicle.
= Do not start the vehicle and do not release the
electric parking brake.
= Do not open or close any doors or the tailgate.
Using the wheel wrench, loosen the wheel
bolts on the wheel you wish to change by
about one full turn. Do not unscrew the
screws completely.
Position of the jack support points
*NOTE Mercedes-AMG vehiclesObserve the notes in the Supplement.
You could otherwise fail to recognize
dangers.&WARNING Risk of injury from incorrect
positioning of the jack
If you do not position the jack correctly at the
appropriate jacking point of the vehicle, the jack could tip with the vehicle raised.
Only position the jack at the appropriate
jacking point of the vehicle. The base of426Wheels and tires

the jack must be positioned vertically
under the jacking point of the vehicle.*NOTE Damage to the vehicle due to using
an unsuitable jack
You can damage the vehicle and, in particular,
the high-voltage battery if you use a jack that is not speciNcally designed for the jack sup-
port points of the vehicle.
Only use jacks that are speciNcally
designed for the jack support points, or
use an appropriate adapter.*NOTE Risk of damage to the vehicle due
to incorrect positioning of the jack
If you do not position the jack at the designa-
ted jack support points, you could damage
your vehicle and, in particular, the high-voltage
battery.
Only position the jack at the designated
jack support points.Take the ratchet out of the tire-change tool kit and place it on the hexagon nut of the jack so that the letters "AUF" are visible.Position support 2 of jack 4 on jack sup-
port point 1.Turn ratchet 3 clockwise until support 2
sits completely on jack support point 1 and
the base of the jack lies evenly on the ground.Turn ratchet 3 until the tire is raised a maxi-
mum of 1.2 in (3 cm) from the ground.Loosen and remove the wheel (  page 427).
Removing a wheel
Requirements
= The vehicle is raised.
*NOTE Mercedes-AMG vehiclesObserve the notes in the Supplement.
You could otherwise fail to recognize
dangers.
When changing a wheel, avoid applying any force
to the brake discs, as this could impair the level of
comfort when braking.
*NOTE Damage to the wheels\b plastic ele-
ments when changing a wheel
Plastic elements on wheels may be damaged
when removing and repositioning the wheel.
Wheels and tires427

Do not raise the wheels by the plastic
elements when removing and reposition-
ing.*NOTE Damage to threading from dirt on
wheel boltsDo not place wheel bolts in sand or on a
dirty surface.Unscrew the uppermost wheel bolt com-
pletely.Screw centering pin 1 into the thread
instead of the wheel bolt.Unscrew the remaining wheel bolts com-
pletely.Remove the wheel.
Installing a new wheel
Requirements
= The wheel to be changed is removed and the
alignment bolt is screwed in (  page 427).
*NOTE Mercedes-AMG vehiclesObserve the notes in the Supplement.
You could otherwise fail to recognize
dangers.&WARNING Risk of accident from losing a
wheel
Oiled, greased or damaged wheel bolt/wheel
nut threads or wheel hub/wheel mounting
bolt threads can cause the wheel bolts/wheel nuts to come loose.
Never oil or grease the threads.In the event of damage to the threads,
contact a qualiNed specialist workshop
immediately.Have the damaged wheel bolts or dam-
aged hub threads replaced.Do not continue driving.Observe the information on the choice of tires
(  page 420).
For tires with a speciNed direction of rotation, an
arrow on the side wall of the tire indicates the cor-
rect direction of rotation. Observe the direction of rotation when installing.
*NOTE Damage to the wheels\b plastic ele-
ments when changing a wheel
Plastic elements on wheels may be damaged
when removing and repositioning the wheel.
Do not raise the wheels by the plastic
elements when removing and reposition-
ing.428Wheels and tires