Porsche Cayenne 2005 Owner's Manual page 138

Notes on operation
The parking heater runs on fuel, and it therefore
cannot be switched on after the reserve warning
lights up.
f Please observe the chapter "FUEL RESERVE
WARNING" on Page 74.
The parking heater must be operated at least
once per month, with the engine cold and the
blower at its lowest setting.
Ignition off: When the parking heater is running,
the remaining running time is shown on the display
panel.
Operation of the parking heater is clearly audible
when outside temperatures are low and the engine
is cold.
138
Controls, Safety, Instruments
Switching parking heater on and
off
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Switching on
f Press ON/OFF button C.
The programed parking heating or parking ven-
tilation function is switched on.
Switching off
f Press ON/OFF button C again.
Note on operation
f After switching off the parking heater using
ON/OFF button C wait for at least 2 minutes
before you press the button again.
The combusion chamber is cleaned.
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