Porsche 2007 Cayenne Owner's Manual page 344

Collapsible spare wheel
The collapsible spare wheel is fastened under the
floor in the luggage compartment.
On vehicles with 17 mm spacers:
f Before fitting a collapsible spare wheel on the
rear axle always remove the corresponding
spacer.
For information on the spacers: Please
observe the chapter "SPACERS" on Page 330.
For information about removing the spacers:
Please observe the chapter "CHANGING A
WHEEL WITH REMOVAL OF 17 MM SPACER"
on Page 342.
344
Minor Repairs
1. Take out rotary knob A and put it on bolt B.
2. Unscrew the screw and take out the collapsible
spare wheel.
3. Mount the collapsible spare wheel on the vehi-
cle before inflating it. Leave the car jacked up.
Please observe the chapter "LIFTING THE
VEHICLE WITH A JACK" on Page 338.
4. Inflate the tire.
Please observe the chapter "TIRE PRESSU-
RES, COLD" on Page 406.
Warning!
Risk of accident.
f The collapsible spare wheel must be used only
over short distances in cases of emergency.
For safety reasons, replace the tires before
the wear indicators appear (webs in the tire
grooves, 1/16 in. (1.6 mm) high).
f Never deactivate the Porsche Stability Man-
agement (PSM) system.
f Avoid hard acceleration and high cornering
speeds.
The maximum permitted speed is 50 mph
(80 km/h) and must not be exceeded
because of altered driving characteristics and
for reasons of wear.
The tread depth of the spare wheel is subject
to the same laws as the original tires.
f Do not use a collapsible spare wheel from a
different vehicle type.
f Do not mount the collapsible spare wheel from
your car on a different vehicle.
f Only fit one collapsible spare wheel on the
vehicle at a time.
f On vehicles with air suspension, use the tire fill-
ing connection A only to inflate the collapsible
spare wheel.
f To avoid damage, do not use automatic car
washes when the spare wheel is installed.