Porsche Cayenne Turbo Driver Manual page 66

REST mode
Using engine residual heat
The residual heat of the engine can be used to
heat the interior for up to 20 minutes after the
ignition has been switched off.
f Press button
.
The air-conditioning settings cannot be
changed in REST mode.
Ending the function
f Press button
.
Note on operation
If the battery voltage is too low, REST mode is
automatically ended.
66
Air Conditioning, Parking Heater and Rear Window Heating
Information on air-conditioning
compressor
The air-conditioning compressor:
– May switch off briefly to ensure sufficient
engine cooling if the engine is operating under
extreme load.
– Switches off automatically at temperatures
below approx. 3 °C and cannot be switched
on, even manually.
– Operates most effectively with the windows
closed.
If the vehicle has been in the sun for a long
time, it is a good idea to ventilate the interior
briefly with the windows open.
– Depending on the outside temperature and
humidity, condensation can drip from the
evaporator and form a pool under the car.
This is normal and not a sign of leakage.
f If uncooled air flows out when the lowest
temperature has been set ("LO"), switch off the
air-conditioning compressor and have the fault
remedied.
Consult a qualified specialist workshop. We
recommend that you use a Porsche partner for
this work since these are staffed with trained
personnel and have the necessary parts and
tools.
Sensors
To avoid affecting the performance of the air-
conditioning system:
f Do not cover the sun sensor on the dashboard
and the temperature sensor F in the front
control panel of the air-conditioning system.