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Tyre pressure
&
WARNING
If
you mount unsuitable accessories onto
tyre valves, the tyre valves may be overloa-
ded and malfunction, which can cause tyre
pressure loss. Aftemarket tyre pressure
monitoring systems will cause the tyre
valve to remain open. This can also result
in tyre pressure loss. There is a risk of an
accident.
Only screw standard valve caps or valve
caps specifically approved by smart for
your vehicle onto the tyre valve.
&
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.
• Check whether the wheel is losing air or
the valve is leaking.
If you are unable to rectifY the damage,
contact a qualified specialist workshop.
Gp
Environmental note
Check the tyre pressure regularly, at least
every 14 days.
You will find a table with the recommended
tyre pressure on the tyre pressure infor-
mation label on the driver's side B-pillar.
The tyre pressure information label may
also state tyre pressures for different load
conditions. These are defined in the table
as different 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
pressures stated on the tyre pressure
information label apply for all tyres
approved for this vehicle.
m
165/65115 81T
2,0 bar
185/50/16 81H
29 psi
185/60/15 84H
2,5 bar
205145116 83 H
36 psi
99090 3260 R
P40.0Cf-2252-31
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 does not permit any reliable conclu-
sion about the tyre pressure.
If
possible , only correct tyre pressures
when the tyres are cold.
The tyres are cold:
• if the vehicle has been parked with the
tyres out of direct sunlight for at least
three hours and
• if the vehicle has not been driven further
than 2 km
Depending on the ambient temperature , the
speed at which you are driving and the load
on the tyres, the tyre temperature and thus
the tyre pressure change by approximately:
10 kPa per 10
°C
(0.1 bar/1.5 psi). Take this
into account when checking the pressure of
warm tyres. Only correct the tyre pressure
if it is too low for the current operating
conditions.
Driving with tyre pressure that is too high
or too low can:
• shorten the service life of the tyres
• cause increased tyre damage
• have a negative effect on handling char-
acteristics and thus the driving safety
(e.g. aquaplani ng)
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