Mercedes-Benz GLB 2021 Series, Operator'S Manual

Page: 309 / 446

all tires including the spare wheel regu‐
larly:
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at least once a month
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when the load changes
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before embarking on a longer journey
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if operating conditions change, e.g. off-
road driving
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Adjust the tire pressure as necessary.
Tire pressure which is too high or too low can:
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Shorten the service life of the tires.
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Cause increased tire damage.
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Adversely affect driving characteristics and
thus driving safety, e.g. due to hydroplaning.
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WARNING Risk of an accident due to
insufficient tire pressure
Tires with pressure that is too low can over‐
heat and burst as a result.
In addition, they also suffer from excessive
and/or irregular wear, which can significantly
impair the braking properties and the han‐
dling characteristics.
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Avoid excessively low tire pressures in
all the tires, including the spare wheel.
Tire pressure which is too low can cause:
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Tire malfunctions as a result of overheating
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Impaired handling characteristics
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Irregular wear
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Increased fuel consumption
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WARNING Risk of accident from exces‐
sive tire pressure
Tires with excessively high pressure can
burst because they are damaged more easily
by highway fill, pot holes etc.
In addition, they also suffer from irregular
wear, which can significantly impair the brak‐
ing properties and the handling characteris‐
tics.
#
Avoid excessively high tire pressures in
all the tires, including the spare wheel.
Tire pressure which is too high can cause:
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Increased braking distance
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Impaired handling characteristics
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Irregular wear
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Impaired driving comfort
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Susceptibility to damage
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WARNING Risk of accident caused by
repeated drop in tire pressure
If the tire pressure drops repeatedly, the
wheel, valve or tire may be damaged.
Insufficient tire pressure can cause the tires
to burst.
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Inspect the tire for signs of foreign
objects.
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Check whether the wheel or valve has a
leak.
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If you are unable to rectify the damage,
contact a qualified specialist workshop.
Wheels and tires 307