Residual Heat; Automatic Air Recirculation Control - BMW 318i Owner's Handbook Manual

The automatic air-conditioning system
switches to the lowest temperature and oper-
ates in recirculated-air mode. Air flows at maxi-
mum rate only from the outlets for the upper
body area. You should therefore open these
outlets for maximum cooling.
AUTO program
The AUTO program adjusts the air
distribution to the windscreen and
side windows, towards the upper
body area and into the footwell for you. The air
flow and your temperature specifications will be
adapted to outside influences as a result of sea-
sonal changes, e.g. sunlight or window mist.
The cooling function is switched on automati-
cally in the AUTO program.
Adjusting air flow manually
Press the left side of the button to
reduce air flow. Press the right side
of the button to increase it.
You can switch the automatic air flow control
back on by pressing the AUTO button.
Switching the system on/off
With the blower at its lowest setting, press the
left side of the button to switch off the auto-
matic air-conditioning system. All indicators go
out.
Press any button except REST to reactivate the
automatic air-conditioning system.

Automatic Air Recirculation Control

AUC/recirculated-air mode
Activate the desired operating
mode by pressing this button
repeatedly:
> LED off: outside air is constantly entering
the car.
> Left-hand LED on, AUC mode: a sensor
detects pollutants in the outside air. If nec-
essary, the system blocks the supply of out-
side air and recirculates the inside air. As
soon as the concentration of pollutants in
the outside air has decreased sufficiently,
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the system automatically switches back to
outside air supply.
> Right-hand LED on, recirculated-air mode:
outside air supply is shut off permanently.
The air inside the car is recirculated.
If the windows fog over in the recircu-
lated-air mode, switch it off and, if neces-
sary, increase the air flow rate.
The recirculated-air mode should not be used
continuously for lengthy periods, as the quality
of the air inside the car will otherwise gradually
deteriorate.<
Via a button* on the steering wheel
You can switch quickly between recirculated-air
mode and the previous mode using a button on
the steering wheel, see page 9.

Residual heat

The heat stored in the engine is
used to heat the car's interior, for
instance when waiting at a school
to pick up a child.
The function can be switched on whenever the
following conditions are met:
> Up to 15 minutes after the engine has been
switched off
> The engine is at operating temperature
> Battery voltage is sufficient
> The outside temperature is below 25 6/
77 7
The LED lights up when the function is
switched on.
As of radio readiness, you can adjust the interior
temperature, the air flow rate and the air distri-
bution.
Defrosting windows
Quickly removes ice and conden-
sation from the windscreen and
the front side windows.
To do so, also switch on the cooling function.