2000 BMW 323i SEDAN heater

88n
Automatic climate controlTips for pleasant drivingUse the automatic system (switch on
AUTO Ð button 7). Select an interior
temperature that is comfortable for you
Ð we recommend 70 7 (22 6). When
the outside temperature is above 42 7
(5 6), you can also use the air condi-
tioner (12). This will dry the air as well
as preventing condensation on the win-
dow surfaces Ð if there are passengers
with damp clothing, for example. Set
the air outlets (2) so that the air flows
past you and is not directed straight at
you. Set the rotary dial between the air
outlets (2) for the upper body to a me-
dium position, since air that is some-
what cooler promotes driving without
fatigue.
Detailed setting options are described
for you in the following section.
Your vehicle is set in such a man-
ner that, when you unlock the car
with your personalized remote control,
your own personalized setting of the
automatic climate control is initiated.<
Automatic air distribution
The AUTO program assumes
the adjustment of the air distri-
bution and the air supply for you and in
addition adapts the temperature to ex-
ternal influences (summer, winter) to
meet preferences you can specify. This
program maintains a comfortable in-car
climate regardless of the season. Select
an interior temperature that is comfort-
able for you Ð we recommend 70 7
(22 6). The temperature selected and
AUTO for the air supply appear in
display (10), refer to the overview on
page 86. Open the air outlets for the
upper body area. Switch on the air con-
ditioner in warm weather. The maxi-
mum cooling capacity is achieved when
you set rotary dial (3) to cold. Refer to
page 90.
Individual air distribution
You can cancel the AUTO pro-
gram by selecting specific dis-
tribution patterns to suit your
own individual requirements.
You can direct air to flow onto the win-
dows , toward the upper body ,
and into the footwell .
Temperature
The figures in the display pro-
vide a general indication of inte-
rior temperature. We recommend 70 7
(22 6) as a comfortable setting,
whether the air conditioner is operating
or not. When you start the vehicle, the
system ensures that the selected tem-
perature is reached as quickly as possi-
ble. It then maintains this temperature,
regardless of the season.
Set rotary dial (3; refer to "Draft-free
ventilation" on page 90) to a medium
setting, since air that is somewhat
cooler promotes driving without fatigue.
You can use this setting for mixing air to
make minor comfort modifications.
The full, uncontrolled heater out-
put is available starting at an inte-
rior temperature setting of 90 7
(32 6). At a setting of 60 7 (16 6),
the full cooling output is available when
the air conditioner is activated.<

168n
Self-diagnostics All of the important electrical and elec-
tronic systems in the vehicle are tested
regularly and automatically Ð the driver
does not have to perform any extra
operations or adjustments.
The indicator lamps also come on
briefly after the ignition has been turned
on.
While you are driving, the functional
status of the actuator motors (for the
windshield wipers, power windows,
seats, sunroof, etc.) is constantly ana-
lyzed by current measurements in their
relays.460de177
In the same manner, the electrical re-
sistance of the airbag ignition genera-
tors and all of the remaining airbag
components is measured at all times.
Any fault in this system would be de-
tected immediately by a current fluctua-
tion that would necessarily accompany
it. The fault would be indicated immedi-
ately by the airbag warning lamp.
Even after you shut off the engine, the
overall functional status of your vehicle
is monitored. For example, all of the
flaps of the heating and ventilation sys-
tem travel to the nearest limit position.
This action ensures that the system will
be able to provide defrosting, regard-
less of other circumstances (if a mal-
function in the heating or ventilation
system should occur during the night
while the vehicle is parked, for in-
stance).
A calibration cycle runs every tenth time
the engine is shut off. During this cycle,
the actuator motors of all the heating
and ventilation flaps travel to their limit
stops in both directions. The limit posi-
tions and the return travel paths are
checked in this manner in order to en-
sure that appropriate adjustments for
the operating elements can be made at
any time.You will hear the sounds of the air flaps
as the heater/ventilation system carries
out its self-diagnostic functions after the
ignition is shut off. All of the other self-
diagnostics functions operate silently in
the background.
Any faults detected during these self-
diagnostics can be read out by your
BMW center during the next regularly-
scheduled maintenance and corrected
with a minimum of time.

175n
IndexDataTechnologyRepairsCar careControlsOverview
Capacities
Notes
Fuel tank
reserve gal. (liters)
gal. (liters)approx. 16.6 (approx. 63)
approx. 2.1 (approx. 8)Fuel specification: Page 26
Windshield washer system/
Headlamp washer system
*
quarts (liters) approx. 5.6 (approx. 5.3) For details: Page 124
Cooling system including heater circuit quarts (liters) approx. 8.9 (approx. 8.4) For details: Page 128
Engine oil and filter change quarts (liters) approx. 6.9 (approx. 6.5) BMW High Performance
Synthetic Oil
For details: Page 126
Manual transmission, automatic transmission
and differentialÐ Lifetime fluid, no fluid change
required.