Mercedes-Benz A Series 2015 Owner's Manual page 365

Tyre pressure
362
Tyre pressure
Tyre pressure specifications
WARNING
G
Underinflated or overinflated tyres pose the
following risks:
the tyres may burst, especially as the load
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and vehicle speed increase.
the tyres may wear excessively and/or
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unevenly, which may greatly impair tyre
traction.
the driving characteristics, as well as steer-
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ing and braking, may be greatly impaired.
There is a risk of an accident.
Observe the recommended tyre pressure and
check the tyre pressure of all the tyres includ-
ing the spare wheel:
at least every two weeks
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when the load changes
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before embarking on a longer journey
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for changed operating conditions, e.g. off-
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road driving
If necessary, correct the tyre pressure.
WARNING
G
If you fit unsuitable accessories onto tyre
valves, the tyre valves may be overloaded and
malfunction, which can cause tyre pressure
loss. Due to their design, retrofitted tyre pres-
sure monitors keep the tyre valve open. This
can also result in tyre pressure loss. There is a
risk of accident.
Only screw standard valve caps or valve caps
specifically provided by Mercedes-Benz for
your vehicle onto the tyre valve.
G WARNING
If the tyre pressure drops repeatedly, the
wheel, valve or tyre may be damaged. Tyre
pressure that is too low may result in a tyre
blow-out. There is a risk of accident.
Check the tyre for foreign objects.
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Check whether the wheel is losing air or the
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valve is leaking.
If you are unable to rectify the damage, con-
tact a qualified specialist workshop.
H Environmental note
Check the tyre pressure regularly, at least
every 14 days.
The recommended tyre pressures for various
operating conditions can be found in the tyre
pressure table on the fuel filler flap
( page 181).
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Operation with an emergency spare
wheel: information on operation with an
emergency spare wheel can be found in the
general notes in the "Emergency spare wheel"
section ( page 390).
Y
Operation with a trailer: the applicable
value for the rear axle is the maximum tyre
pressure value stated in the table inside the
fuel filler flap.
Additionally, the tyre pressure table may also
state tyre pressures for different load condi-
tions. These are defined in the table as dif-
ferent numbers of passengers and amounts
of luggage. The actual number of seats may
vary; for more information, please refer to the
vehicle's registration documents.
If tyre sizes are not specified, the tyre pres-
sures stated on the tyre pressure table apply
for all tyres approved for this vehicle.
If a tyre size precedes a tyre pressure, the
following tyre pressure information is only
valid for that tyre size.
Use a suitable pressure gauge to check the
tyre pressure. The outer appearance of a tyre