MERCEDES-BENZ GLB 2023 Owners Manual

qSetting up the warning triangleFold side reOectors 1 upwards to form a tri-
angle and attach at the top using upper press- stud 2.Fold legs 3 down and out to the side.First-aid kit (sos sided) overview
First-aid kit 1 is located under the cargo Ooor.
Flat tire
Notes on Oat tires
&WARNING Risk of accident due to a Oat
tire
A Oat tire severely aMects the driving charac-
teristics as well as the steering and braking of
the vehicle.
Tires without run-Oat characteristics:
Do not drive with a Oat tire.Change the Oat tire immediately with an
emergency spare wheel or spare wheel.
Alternatively, consult a qualiNed special-
ist workshop.
Tires with run-Oat characteristics:
Observe the information and warning
notes on MOExtended tires (run-Oat
tires).
In the event of a Oat tire, the following options are
available depending on your vehicle\bs equipment:
= Vehicles with MOExtended tires: it is possible
to continue the journey for a short period of
time. Make sure you observe the notes on MOExtended tires (run-Oat tires)
(  page 300).
= Vehicles with a TIREFIT kit: you can seal the
tire so that it is possible to continue the jour-
ney for a short period of time. To do this, use the TIREFIT kit (  page 301).
= Vehicles with Mercedes me connect: you can
make a call for breakdown assistance via the
Breakdown assistance299

overhead control panel in the case of a break-
down (  page 262).
= All vehicles: change the wheel (  page 342).\bThe emergency spare wheel is only available
in certain countries.
Notes on MOExtended tires (run-Oat tires)
&WARNING Risk of accident when driving in
limp-home mode
When driving in emergency mode the handling
characteristics are impaired.
Do not exceed the speciNed maximum
speed of the MOExtended tires.Avoid any abrupt steering and driving maneuvers as well as driving over obsta-
cles (curbs, pot holes, oM-road). This
applies, in particular, to a loaded vehicle.Stop driving in the emergency mode if
you notice:
= Banging noise
=
Vehicle vibration
= Smoke which smells like rubber
= Continuous ESP n
intervention
= Cracks in the tire side wallsAser driving in emergency mode, have
the rims checked by a qualiNed specialist
workshop with regard to their further
use.The defective tire must be replaced in
every case.
With MOExtended tires (run-Oat tires), you can
continue to drive your vehicle even if there is a
total loss of pressure in one or more tires. How-
ever, the tire aMected must not show any clearly
visible damage.
You can recognize MOExtended tires by the
MOExtended marking which appears on the side wall of the tire.
Vehicles with tire pressure loss warning system: MOExtended tires may only be used in conjunc-
tion with an activated tire pressure loss warning
system.
Vehicles with tire pressure monitoring system:
MOExtended tires may only be used in conjunc-
tion with an activated tire pressure monitoring system.
If a pressure loss warning message appears in the driver\bs display, proceed as follows:
= Check the tire for damage.
= If driving on, observe the following notes.
Driving distance possible in emergency mode
aser the pressure loss warning:Load conditionDriving distance possi-
ble in emergency modePartially laden50 miles (80 km)Fully laden19 miles (30 km)
The driving distance possible in emergency mode
may vary depending on the driving style. Observe the maximum permissible speed of 50 mph
(80 km/h).
If a tire has gone Oat and cannot be replaced with
an MOExtended tire, you can use a standard tire
as a temporary measure.
300Breakdown assistance

Storage location of the TIREFIT kit (not plug-in
hybrid)
The TIREFIT kit is located under the cargo Ooor.
1Tire inOation compressor2Tire sealant bottle
Depending on the vehicle version, the TIREFIT kit
may be located in another position under the
cargo Ooor.
Using the TIREFIT kit
Requirements
= The tire sealant bottle and tire inOation com-
pressor are ready for use (  page 301).
= TIREFIT sticker is present.
= Gloves are present.
You can use TIREFIT tire sealant to seal perfora-
tion damage of up to 0.16 in (4 mm), particularly
those in the tire tread. You can use TIREFIT in out-
side temperatures down to -4 °F (-20 °C).
&WARNING Risk of accident when using
tire sealant
The tire sealant may be unable to seal the tire
properly, especially in the following cases:
= There are large cuts or punctures in the
tire (larger than damage previously men-
tioned)
= The wheel rims have been damaged
= Aser journeys with very low tire pressure
or with Oat tires
Do not continue driving.Consult a qualiNed specialist workshop.&WARNING Risk of injury and poisoning
from tire sealant
The tire sealant is harmful and causes irrita-
tion. Do not allow it to come into contact with
the skin, eyes or clothing, and do not swallow it. Do not inhale tire sealant fumes. Keep the
tire sealant away from children.
If you come into contact with the tire sealant,
observe the following:
Rinse oM the tire sealant from your skin
immediately using water.If tire sealant gets into your eyes, thor- oughly rinse out the eyes using clean
water.If tire sealant has been swallowed, imme-
diately rinse out the mouth thoroughly
and drink plenty of water. Do not induce
vomiting and seek medical attention
immediately.Breakdown assistance301

Change out of any clothes contaminated
with tire sealant immediately.If allergic reactions occur, seek medical
attention immediately.*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.
Comply with the manufacturer\bs safety notes on
the sticker on the tire sealant bottle.
Have the tire sealant bottle replaced at a qualiNed
specialist workshop every Nve years.
Do not remove any foreign objects that have
entered the tire.Remove sticker 1 from the housing of the
tire inOation compressor and aPx it to the
instrument cluster within the driver\bs Neld of
vision.Remove sticker 2 from the tire sealant bottle
and aPx it near the valve on the wheel with
the defective tire.Pull plug 7 with the cable and Nlling hose 3
out of the housing of the tire inOation com-
pressor.Insert tire sealant bottle 9 in socket 6 of
the tire inOation compressor in such a way302Breakdown assistance

that the red arrow on tire sealant bottle 9
aligns with the red arrow on the tire inOation
compressor.Turn tire sealant bottle 9 a quarter turn
clockwise.Insert the plug of Nlling hose 3 in socket 5
of tire sealant bottle 9.Turn Nlling hose 3 a quarter turn clockwise.Remove the valve cap from valve A on the
defective tire.Screw union nut 4 of Nlling hose 3 onto
valve A.Insert plug 7 into a 12!

Do not continue driving.Consult a qualiNed specialist workshop.*NOTE Staining caused by leaking tire seal-
ant
Aser use, excess tire sealant may leak out
from the Nlling hose.
Therefore, place the Nlling hose in the
plastic bag that contained the TIREFIT
kit.
If, aser ten minutes, a tire pressure of 200 kPa
(2.0 bar/29 psi) has been attained:
Switch oM the tire inOation compressor.Unscrew the Nlling hose from the valve of the
defective tire.
Please note that tire sealant may leak out when
you unscrew the Nlling hose.
&WARNING Risk of accident from driving
with sealed tires
A tire temporarily sealed with tire sealant
impairs the handling characteristics and is not suitable for higher speeds.
Adapt your driving style accordingly and
drive carefully.Do not exceed the maximum speed limit with a tire that has been repaired using
tire sealant.Observe the maximum permissible speed of
50 mph (80 km/h) for a tire sealed with tire
sealant.The sticker with details of the maximum per- missible speed must be aPxed to the instru-
ment cluster where it can be easily seen by
the driver.*NOTE Staining caused by leaking tire seal-
ant
Aser use, excess tire sealant may leak out
from the Nlling hose.
Therefore, place the Nlling hose in the
plastic bag that contained the TIREFIT
kit.+ENVIRONMENTAL NOTE Environmental
pollution caused by environmentally irre-
sponsible disposal
Tire sealant contains pollutants.
Have the tire sealant bottle disposed of
professionally, e.g. at an authorized
Mercedes-Benz Center.Stow the tire sealant bottle and the tire inOa-
tion compressor.Pull away immediately.Pull over aser approximately ten minutes and
check the tire pressure using the tire inOation
compressor.
The tire pressure must now be at least
130 kPa (1.3 bar/19 psi).304Breakdown assistance

&WARNING Risk of accident due to the
speciNed tire pressure not being attained
If the speciNed tire pressure is not reached,
the tire is too badly damaged. The tire sealant
cannot repair the tire in this instance.
The braking and driving characteristics may begreatly impaired.
Do not continue driving.Consult a qualiNed specialist workshop.
In cases such as the one mentioned above, con-
tact an authorized Mercedes-Benz Center. Or call1-800-FOR-MERCedes (in the USA) or
1-800-387-0100 (in Canada).
Correct the tire pressure if it is still at least
130 kPa (1.3 bar/19 psi). See the Tire and
Loading Information placard on the B!

For safety reasons, Mercedes-Benz recommends
that you only use batteries which have been tes- ted and approved for your vehicle by Mercedes-Benz.&WARNING Danger of chemical burns from
the battery acid
Battery acid is caustic.
Avoid contact with the skin, eyes or
clothing.Do not lean over the battery.Do not inhale battery gases.Keep children away from the battery.Immediately rinse battery acid oM thor-
oughly with plenty of clean water and
seek medical attention immediately.+ENVIRONMENTAL NOTE Environmental
damage due to improper disposal of bat-
teries
Batteries contain pollutants. It is illegal
to dispose of them with the household rub-
bish.

Dispose of batteries in an
environmentally responsible manner.
Take discharged batteries to a qualiNed
specialist workshop or to a collection
point for used batteries.
If you have to disconnect the 12 V battery, con- tact a qualiNed specialist workshop.
Comply with safety notes and take protective
measures when handling batteries.
Risk of explosion.Fire, naked Oames and smoking are
prohibited when handling the battery.
Avoid creating sparks.Electrolyte or battery acid is corrosive.
Avoid contact with the skin, eyes or
clothing. Wear suitable protective
clothing, in particular gloves, an apron
and a face mask. Immediately rinse
electrolyte or acid splashes oM with
clean water. Consult a doctor immedi- ately.Wear safety glasses.Keep children away.306Breakdown assistance

Observe this Operator\bs Manual.
If you do not intend to use the vehicle over anextended period of time:
= Activate standby mode.
= Connect the battery to a charger approved by
Mercedes-Benz.
= Consult a qualiNed specialist workshop to dis-
connect the battery.
Notes on starting assistance and charging the 12
V battery
When charging the battery and during starting assistance, always use the jump-start connection
point in the engine compartment.
*NOTE Damage to the battery due to over-
voltage
When charging using a battery charger without
a maximum charging voltage, the battery or the on-board electronics may be damaged.
Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.&WARNING Risk of explosion due to the
ignition of hydrogen gas
If there is a short circuit or sparks are created,
there is a danger of hydrogen gas igniting
when you charge the battery.
Make sure that the POSITIVE terminal of
a connected battery does not come into
contact with vehicle parts.Never place metal objects or tools on a
battery.When connecting and disconnecting the battery, always observe the sequence of
battery terminals described.During starting assistance, always take
care to connect only battery terminals of
identical polarity.During starting assistance, observe the sequence described for connecting and
disconnecting the jumper cables.Do not connect or disconnect the bat-
tery terminals with the engine running.&WARNING Risk of explosion due to a mix-
ture of explosive gases
A mixture of explosive gases can escape from
the battery during charging and jump starting.
Fire, open Oames, smoking and creating
sparks must be avoided.Make sure that there is suPcient ventila-
tion.Do not stand over the battery.&WARNING Risk of explosion from a frozen
battery
A discharged battery may freeze at tempera-
tures slightly above or below freezing point.
During starting assistance or battery charging,
battery gas can be released.
Always allow a battery to thaw before
charging it or performing starting assis-
tance.Breakdown assistance307

If the indicator/warning lamps on the instrumentcluster do not light up at low temperatures, it is
very likely that the discharged battery has frozen.
In this case you may neither jump-start the vehi- cle nor charge the battery.
The service life of a battery that has been thawedmay be dramatically shortened. The starting char-
acteristics may be impaired, especially at low
temperatures.
It is recommended that you have a thawed battery checked at a qualiNed specialist workshop.*NOTE Damage caused by numerous or
extended attempts to start the engine
Numerous or extended attempts to start the
engine may damage the catalytic converter
due to non-combusted fuel.
Avoid numerous and extended attempts
to start the engine.Observe the following points during starting assis-
tance and when charging the battery:
= Only use undamaged jumper cables/charging
cables with a suPcient cross-section and
insulated terminal clamps.
= Non-insulated parts of the terminal clamps
must not come into contact with other metal
parts while the jumper cable/charging cable is connected to the battery/jump-start con-
nection point.
= The jumper cables/charging cables must not
come into contact with any parts that may move when the engine is running.
= Always make sure that neither you nor the bat-
tery is electrostatically charged.
= Keep away from Nre and naked Oames.
= Do not lean over the battery.
Observe the additional following points when
charging the battery:
= Only use chargers tested and approved for
Mercedes-Benz.
= Read the charger\bs operating instructions
before charging the battery.Observe the additional following points during
starting assistance:
= For starting assistance, only use batteries with
a nominal voltage of 12 V.
= The vehicles must not touch.
= Gasoline engines: only accept starting assis-
tance if the engine and exhaust system are
cold.
Starting assistance and charging the 12 V battery
Requirements
= The vehicle is secured with the electric park-
ing brake.
= Automatic transmission: the transmission is in
position ].
= The vehicle and all electrical consumers are
switched oM.
= The hood is open.
308Breakdown assistance