2023 MERCEDES-BENZ GLA Owners Manual

Emergency spare wheel
Notes on the emergency spare wheel
&WARNING Risk of accident caused by
incorrect wheel and tire dimensions
The wheel or tire sizes and the tire type of the
emergency spare wheel or spare wheel and
the wheel to be replaced may diMer. The emer-
gency spare wheel or spare wheel can signiN-
cantly impair driving characteristics of the
vehicle.
To prevent hazardous situations:
Drive carefully.Never install more than one emergency
spare wheel or spare wheel that diMers
in size.Only use an emergency spare wheel or spare wheel brieOy.Do not deactivate ESP n
.Have the emergency spare wheel or
spare wheel of a diMerent size replaced
at the nearest qualiNed specialist work-shop. The new wheel must have the cor-
rect dimensions.\bThe deOated emergency spare wheel is
secured in the emergency spare wheel bag in
the cargo compartment and is secured to the adjustable cargo Ooor in the lower position.
Observe the following notes on removing an emer-
gency spare wheel:
= Before stowing the emergency spare wheel,
make sure there is no air les in the tire.
If necessary, allow the air to escape.
= To release air from the tire: remove the valve
cap of the tire.
= Press down the metal insert in the valve using
a pointed object, e.g. a pen.
= Screw the valve cap onto the valve.
\bVehicles with adjustable cargo Ooor: always
stow the deOated emergency spare wheel in
the lower position on the adjustable cargo
Ooor.Observe the following notes on installing an emer-
gency spare wheel:
= The maximum permissible speed with an
emergency spare wheel installed is 50 mph
(80 km/h).
= Do not install the emergency spare wheel with
snow chains.
= Replace the emergency spare wheel aser six
years at the latest, regardless of wear.
= Use the wheel bolts that are included with the
emergency spare wheel.
= Check the tire pressure of the emergency
spare wheel installed. Correct the pressure as
necessary.\bThe speciNed tire pressure is stated on the
label of the emergency spare wheel.\bVehicles with a tire pressure loss warning sys- tem: if an emergency spare wheel is installed,
the tire pressure loss warning system cannot function reliably. Only restart the system
again when the emergency spare wheel has been replaced with a new wheel.Wheels and tires343

Vehicles with a tire pressure monitoring sys-
tem: if an emergency spare wheel is installed,
the tire pressure monitoring system cannot
function reliably. For a few minutes aser an
emergency spare wheel is installed, the sys- tem may still display the tire pressure of the
removed wheel. Only restart the system again when the emergency spare wheel has been
replaced with a new wheel.
Be sure to also observe the following further rela-
ted subjects:
= Notes on tire pressure (  page 315)
= Tire and Loading Information placard
(  page 322)
= Tire pressure table (  page 317)
= Notes on installing tires (  page 333)
= Installing an emergency spare wheel
(  page 338)
*nOating the emergency spare wheel*NOTE Overheating due to the tire inOation
compressor running too longDo not run the tire inOation compressor
for longer than ten minutes without inter- ruption.
Requirements: = The emergency spare wheel has been installed
correctly. (  page 338)
\bComply with the manufacturer\bs safety notes
on the sticker of the emergency spare wheel
and on the tire inOation compressor.Remove the sticker with the label 50 mph
(80 km/h) from the tire inOation compressor
housing and aPx it to the instrument cluster
within the driver\bs Neld of vision.Remove the tire inOation compressor from the
stowage space under the trunk Ooor.
(  page 297)Pull Nller hose 1 and plug 3 out of the tire
inOation compressor housing.Insert plug 7 of Nller hose 1 in the socket
on the tire inOation compressor and then turn
it until plug 7 engages.Unscrew the cap from the valve on the emer-
gency spare wheel.Screw union nut 2 of Nller hose 1 onto the
valve.Make sure on and oM switch 4 of the tire
inOation compressor is set to 0.Insert plug 3 in a socket in your vehicle.
=
12 V socket: (  page 120)
344Wheels and tires

=Observe the notes on sockets: (  page 120)Press the start/stop button once to switch on
the power supply (  page 143).Press On/OM switch 4 on the tire inOation
compressor to I.
The tire inOation compressor is switched on.
The tire is inOated. The tire pressure appears
on manometer 5.Pump the tire to the speciNed tire pressure.\bThe speciNed tire pressure is stated on the
label of the emergency spare wheel.When the speciNed tire pressure has been
reached, press on and oM switch 4 on the
tire inOation compressor to 0.
The tire inOation compressor is switched oM.Press the start/stop button to switch oM the
power supply.If the tire pressure is higher than the speciNed
pressure, press pressure release valve button
6 until the correct tire pressure has been
reached.Unscrew union nut 2 of Nller hose 1 from
the valve.Screw the valve cap of the emergency spare
wheel onto the valve again.Stow Nller hose 1 and plug 3 in the lower
section of the tire inOation compressor hous-
ing.Stow the tire inOation compressor in the vehi-
cle.Wheels and tires345

Notes on technical data*NOTE Mercedes-AMG vehiclesObserve the notes in the Supplement.
You could otherwise fail to recognize
dangers.
The data stated only applies to vehicles with standard equipment. You can obtain further infor-
mation from an authorized Mercedes-Benz Cen-
ter.
Vehicle electronics
Two-way radios

q Notes on installing two-way radios
&WARNING Risk of accident due to
improper work on two-way radios
If two-way radios are manipulated or retroNt-
ted incorrectly, the electromagnetic radiation
from the two-way radios can interfere with the vehicle electronics and jeopardize the operat-
ing safety of the vehicle.
You should have all work on electrical
and electronic components carried out
at a qualiNed specialist workshop.&WARNING Risk of accident due to
improper operation of two-way radios
If you use two-way radios in the vehicle
improperly, their electromagnetic radiation
can disrupt the vehicle\bs electronics. This is
the case in the following situations, in particu-
lar:
= The two-way radio is not connected to an
exterior antenna.
= The exterior antenna is installed incor-
rectly or is not a low-reOection antenna.
This could jeopardize the operating safety of
the vehicle.
Have the low-reOection exterior antenna
installed at a qualiNed specialist work-
shop.When operating two-way radios in the
vehicle, always connect them to the low-
reOection exterior antenna.*NOTE Invalidation of the operating permit
due to failure to comply with the instruc-
tions for installation and use
The operating permit may be invalidated if the instructions for installation and use of two-wayradios are not observed.
Only use approved frequency bands.Observe the maximum permissible out-put power in these frequency bands.Only use approved antenna positions.346Technical data

1Front roof area2Rear roof area3Rear fenders
On vehicles with a panorama roof with power tilt/
sliding panel, installing an antenna to the front or rear roof area is not permitted.
On the rear fenders, it is recommended that you
install the antenna on the side of the vehicle clos- est to the center of the road.
Use Technical SpeciNcation ISO/TS 21609 (Road
Vehicles !

The following devices can be used in the vehiclewithout restrictions:
= two-way radios with a maximum transmission
output of up to 100 mW
= two-way radios with transmitter frequencies in
the 380 - 420 MHz frequency band and a
maximum transmission output of up to 2 W
(TETRA)
= mobile phones (2G/3G/4G/5G)
There are no restrictions regarding the position of
the antenna on the outside of the vehicle for the
following frequency bands:
= TETRA
= 2G/3G/4G/5G
Radio regulations
Regulatory radio identiNcation and speciNc notes
Manufacturer information about radio-based vehi-
cle components can be found using the key phrase "Regulatory radio information" in the Digi-
tal Operator\bs Manual in the vehicle, on the inter- net and in the app.
Vehicle identiNcation plate, VIN and engine num-
ber overview
Vehicle identiNcation plateVehicle identiNcation plate (USA only)1Maximum permissible gross vehicle weight2Maximum permissible front axle load3Maximum permissible rear axle load4Paint code5VIN (vehicle identiNcation number)348Technical data

Vehicle identiNcation plate (Canada only)1Maximum permissible gross vehicle weight2Maximum permissible front axle load3Maximum permissible rear axle load4Paint code5VIN (vehicle identiNcation number)
The maximum permissible gross vehicle weight is
made up of the vehicle weight, all vehicle occu-
pants, the fuel and the load. The maximum gross
axle weight rating is the maximum weight that can be carried on one axle (front or rear axle).
Do not exceed the maximum permissible gross
vehicle weight or the maximum gross axle weight
rating for the front or rear axle.
VIN, engine number and other signs1Engine number stamped into the crankcase2VIN (vehicle identiNcation number) stamped
into the crossmember3Plate with information about emissions test-
ing, including conNrmation of emissions
guidelines at the U.S. federal level as well as
for California4VIN as a label at the lower edge of the wind-
shield
Operating Ouids
Notes on operating Ouids
*NOTE Mercedes-AMG vehiclesObserve the notes in the Supplement.
You could otherwise fail to recognize
dangers.&WARNING Risk of injury due to harmful
operating Ouids
Operating Ouids can be toxic.
When using, storing and disposing of
operating Ouids, observe the imprints on
the respective original containers.Technical data349

Always keep operating Ouids in the
sealed original container.Always keep children away from operat-
ing Ouids.+ENVIRONMENTAL NOTE Pollution of the
environment due to irresponsible disposal
of operating Ouids
Incorrect disposal of operating Ouids can
cause considerable damage to the environ- ment.
Dispose of operating Ouids in an environ-
mentally responsible manner.
Operating Ouids include the following:
= Fuels
= Lubricants
= Coolant
= Brake Ouid
= Windshield washer Ouid
= Climate control system refrigerant
Only use products approved by Mercedes-Benz.
Damage caused by the use of products that have not been approved is not covered by the
Mercedes-Benz warranty or goodwill gestures.
The operating Ouids approved by Mercedes-Benz
can be identiNed by the following inscriptions on
the container:
= MB-Freigabe (e.g. MB-Freigabe 229.51)
= MB-Approval (e.g. MB-Approval 229.51)
Further information on approved operating Ouids:
= in the Mercedes-Benz SpeciNcations for Oper-
ating Fluids by entering the designation
- At https://operatingOuids.mercedes-
benz.com
= At a qualiNed specialist workshop&WARNING Risk of Nre or explosion from
fuel
Fuels are highly Oammable.
Fire, open Oames, smoking and creating
sparks must be avoided.Before and during refueling, switch oM
the vehicle and, if installed, the station- ary heater.&WARNING Risk of injury from fuels
Fuels are poisonous and hazardous to your
health.
Do not swallow fuel or let it come into
contact with skin, eyes or clothing.Do not inhale fuel vapor.Keep children away from fuel.Keep doors and windows closed during
the refueling process.
If you or other people come into contact with
fuel, observe the following:
Immediately rinse fuel oM your skin with
soap and water.If fuel comes into contact with your eyes, immediately rinse them thoroughly with
clean water. Seek medical attention
immediately.350Technical data