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Necessary tyre
pressure:
2.5 bar (36 psi).
Set the
pressure
precisely with the pressure tes-
ter. To
guard against excessive inflation press-
ure, the
collapsible spare wheel is provided with
a blow-off valve.
If the
pressure is too high, the
process of air removal should be accelerated by
operating
the
inflation valve.
The
spare
wheel with
the collapsible tyre may
only
be
used in an emergency, for short distan-
ces.
The maximum speed for this tyre is 80 km/h
(50 mph) and this speed must not be exceeded
because of the changed handling characteristics
of the vehicle, and the wearing properties of the
tyre. The same
law
applies to depth of tread for
this tyre as for the normal tyres.
The
vehicle
may
only be fitted with one collap-
sible tyre.
The collapsible tyre expands through warming
up as it is
used.
When deflating the tyre (com-
pletely remove the valve
core),
it requires sev-
eral
hours
to cool down and thereby assume its
original form, before it can be replaced in the
well in the luggage compartment.
The
collapsible
tyre
can
be neither repaired nor
mounted in
a
normal workshop.
All
work on
these tyres must be left to the manufacturer.
If
the
collapsible
tyre develops a fault, please con-
sult
your Official Porsche Centre.
87
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