Porsche 911 CARRERA - 2003 Manual page 107

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Defrosting
the
windshield
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Press button.
Windshield is demisted or defrosted as
quickly as possible.
Air flows to the windshield only.
{} Switching compressor for
air-conditioning system on or off
Whenever outside temperatures exceed
3rFj3°C,
the air-conditioning compressor is al-
ways switched on in automatic operation.
The compressor can be switched off to save
fuel, but control comfort is then limited.
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Press button.
The compressor is switched off, the symbol
in the left-hand display goes out.
If the interior temperature is too high, switch
compressor back on or press "auto"-button.
To dry incoming air in damp weather, do not
switch off the air-conditioning compressor.
This prevents misting of windows.
B -
Adjusting blower speed
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Press the appropriate button.
Preset blower speed is increased or de-
creased, and "Manual" appears in the right-
hand display field.
c8J
The speed stages are indicated by a
bar display.
If the minus button is pressed at the lowest
blower stage, the blower and automatic control
are switched off.
"OFF" is displayed in the left-hand display.
Pressing on the plus button or the "auto" button
switches the blower and automatic control back
on again.
Circulating-air setting
/!\
Warning!
Risk of accident due to hampered vision.
In circulating-air setting, the windows can
mist up.
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Only select circulating-air setting for short
periods.
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If windows mist up, turn off the circulating-air
setting by pressing the circulating-air button
briefly and select the function "Defrost wind-
shield".
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Switching circulating-air setting
on or off
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Press button.
The outside-air supply is interrupted and only
the inside air is circulated.
Over approx. 37°F/3°C
If the air-conditioning compressor was off, it
switches on automatically. The duration of circu-
lating-air mode is not limited.
Below approx.
37°F/3°C
The air-conditioning compressor is switched off.
Circulating-air mode is automatically ended after
approx. 3 minutes.
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Controls, Instruments 107