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77Instruments and controls
The rear-window and door-mirror heating is
controlled manually.
Switch off the heating as soon as the rear window
is clear, to avoid imposing a heavy load on the bat-
tery longer than necessary. Note, however, that the
heating will go off automatically after 2–10 minutes
(depending on the outdoor temperature) or sooner
if the voltage in the electrical system falls below
10 V
.
The ACC system can be programmed to switch on
the heating automatically when the outdoor temper-
ature is below 41°F (+5
°
C) and the temperature
inside the car is below 50°F (+10
°
C) (see ”Program-
ming I and II”, on pages 79 and 80).
Recirculation is selected automatically for effective
cooling, but it can also be switched on/off manually.
Although recirculation does not substantially affect
the air quality, it is useful to prevent unpleasant
smells or fumes being drawn into the car from
outside.
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To increase the fan speed in steps.
If, after being off, the ignition is switched on but the
engine is not started, the fan will run at low speed
until the engine is running.
To decrease the fan speed in steps.
If the fan is set to 0, the A/C compressor will cut out
and ECON will appear on the display.
If, after being off, the ignition is switched on but the
engine is not started, the fan will run at low speed
until the engine is running.
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