2001 BMW 325Ci COUPE Owner's Manual

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IndexDataTechnologyRepairsCar careControlsOverview
The conceptThe PDC assists you when you back
into a parking space. A signal warns
you of the distance to an obstacle. To
do this, four ultrasonic sensors in the
rear bumper measure the distance to
the nearest object. The range for the
sensors located at both rear corners
ends approx. 2 ft (60 cm) behind the
bumpers. The range for the two middle
sensors is slightly less than 4.9 ft
(1.50 meters).
The system starts to operate automati-
cally about one second after you select
reverse with the ignition key in posi-
tion 2. PDC is deactivated when you
shift back out of reverse.
Acoustical signalsThe distance to the nearest object is
indicated by a tone sounding at various
intervals. As the distance between
vehicle and object decreases, the
intervals between the tones become
shorter. A continuous tone indicates
the presence of an object less than 1 ft
(30 cm) away.
The warning signal is canceled after
approx. three seconds if the distance to
the obstacle remains constant during
this time (if you are moving parallel to
a wall, for instance).
System malfunctions will be indicated
by a continuous high-pitched tone
when the system is activated the first
time. Please refer the problem to your
BMW center.The PDC does not remove the
driver's personal responsibility for
evaluating the distance between the
vehicle and any obstacles. Even when
sensors are involved, there is a blind
spot in which objects cannot be
detected. This applies especially in
those cases where the system
approaches the physical limits of ultra-
sonic measurement, as occurs with tow
bars and trailer couplings, and in the
vicinity of thin and painted objects.
Certain sources of sound, such as a
loud radio, could drown the PDC signal
tone.<
Keep the sensors clean and free
of ice or snow in order to ensure
that they continue to operate effec-
tively.
Do not subject the sensors to high-
pressure washers for a prolonged
period of time. Always maintain a
distance of more than 4 in (10 cm).<
Park Distance Control (PDC)
*

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ASC+T

The conceptThis system enhances driving stability
and traction, especially when you are
just starting off, accelerating or in
curves.
ASC+T recognizes the danger present
in traction loss and will increase driving
stability and traction by reducing the
engine's output, and if necessary, by
applying the brakes to the rear wheels.
ASC+T is available as soon as the
engine starts up.
Indicator lamp
The indicator lamp in the instru-
ment cluster goes out shortly
after you switch on the ignition.
Refer to pages 21 and 22.
Indicator lamp flashes:
ASC+T controls the drive forces.
If the indicator lamp fails to go out after
the engine is started, or if it comes on
during normal driving and stays on:
There is a system malfunction or the
system was deactivated with the
button. Consequently, interventions to
increase driving stability (as described
in the preceding column) are not avail-
able. However, you can still drive the
vehicle as usual, but without ASC+T.
Please consult your BMW center in the
event of a malfunction, refer to
pages 21 and 22.
Deactivating the ASC+T Press the button; the indicator lamp
comes on and stays on.
The illustration shows the arrangement
of the buttons if the vehicle is fully
equipped. This may vary, depending on
the equipment actually installed.
In the following rare situations, it may
be effective to deactivate the ASC+T
for a brief period:
>When rocking the vehicle or starting
off in deep snow or on loose
surfaces.
>When driving with snow chains.
Refer also to page 119.
To maintain vehicle stability,
always drive with the ASC+T
activated whenever possible.<462de292

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IndexDataTechnologyRepairsCar careControlsOverview
ASC+T DSC
*
Reactivating the ASC+TPress the button again; the indicator
lamp goes out.
The laws of physics cannot be
repealed, even with ASC+T. It will
always be the driver's responsibility to
drive in a manner that matches road
conditions. We therefore urge you to
avoid using the additional safety margin
of the system as an excuse for taking
risks.<
For additional details concerning
ASC+T, please refer to the chapter
"Advanced Technology" on page 175.
The ConceptDSC maintains vehicle stability, even in
critical driving situations.
The system optimizes vehicle stability
during acceleration and when starting
from a full stop, as well as optimizing
traction. In addition, it recognizes
unstable vehicle conditions, such as
understeering or oversteering, and, as
far as is possible within the laws of
physics, helps keep the car on a steady
course by reducing the engine spped
and brake applications to the individual
wheels.
The DSC is operational every time you
start the engine. DSC contains the
functions of ADB and CBC, refer to
page 116.
The ADB (automatic differential braking)
copies the function of conventional
differential and transverse lock through
brake intervention, and increases trac-
tion whenever conditions merit, e. g.
when driving on snow-covered roads.
If the DSC is switched off the ADB will
still be in ready mode.
Indicator lamp
The indicator lamp on the instru-
ment panel will go out shortly
after the ignition has been
started. Refer to pages 21 and 22.
If the indicator lamp flashes:
ASC+T or DSC control the drive and
braking forces.
The indicator lamp stays lit:
DSC has been switched off via the
button; ADB is operational.
ADB intervention not indicated.
The indicator lamp and the
brake warning lamp will light up
continously:
The DSC, ADB and DBC have
been turned off with the switch
or are defective.
The vehicle will remain completely
operational, however, without DSC. In
the event of a fault, please see your
BMW center. Refer to pages 21 and 22.
Indicator and warning lamps for
Canadian models.

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DSC
*
Switch off the DSC/Activate the
ADBPress the DSC button briefly; the indi-
cator lamp lights up continously.
The DSC has been switched off; ADB is
operational.
In the following exceptional circum-
stances, it may be effective to deacti-
vate the DSC for a short period:
>When rocking the vehicle or starting
off in deep snow or on loose surfaces
>When driving on snow-covered.
grades, in deep snow, or on a snow-
covered surface that has been
packed down from being driven on.
>When driving with snow chains.
Refer also to page 119.
The gain in traction is achieved by a
reduction in stabilizing intervention.462de301
Switch the DSC and ADB offHold down the DSC switch for at least
3 seconds. The indicator and the yellow
brake warning lamps will remain on the
entire time.
In this case, no interventions to
increase stability and traction for
engine and brakes are carried out.
To maintain vehicle stability,
always drive with the DSC on
whenever possible.<
Switch the DSC and ADB back onPress the button again; the indicator
lamp or the indicator lamps will go out.
The laws of physics cannot be
repealed, even with DSC. It will
always be the driver's responsibility to
drive in a manner that matches road
conditions. We therefore urge you to
avoid using the additional safety margin
of the system as an excuse for taking
risks.
Whenever the ADB has been activated,
the DSC is deactivated and will not
perform any stabilizing intervention.
Do not make any modifications to the
DSC system. Allow only authorized
technicians to perform work on the
DSC.<
For additional details concerning DSC,
please refer to the chapter "Advanced
Technology" on page 175.

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StichworteDatenTechnikSelbsthilfeWartungBedienung†berblick

Tire Pressure Control (RDC)

*
The concept

RDC monitors the tire pressures at all
four wheels, even when the vehicle is
moving. The system provides an alert
whenever the inflation pressure drops
significantly below the specified pres-
sure in one or more tires.
In order for the system to "learn" the
correct tire inflation pressure, check the
inflation pressure in all tires according
to the inflation pressure table (page 28)
and make corrections as necessary.
Then activate the system.
This indicator lamp in the instru-
ment cluster will inform you if
the tire pressure is not correct.

Depending on the type of equipment,
the switch either has the letters RDC on
it or the RDC-symbol.

Activate the system

1 Turn ignition key to position 2 (do not
start the engine).
2 Press the switch long enough for the
yellow indicator lamp in the instru-
ment cluster to light up for a few
seconds.
3 After a few minutes driving time, RDC
sets the current inflation pressure in
the tires as the target values to be
monitored.462de293

You will only have to repeat this proce-
dure following a correction of the tire
inflation pressure. Otherwise, RDC
functions automatically when the igni-
tion key is in position 2, and thus oper-
ates whenever the vehicle is driven.

In the event of tire pressure loss

If the inflation pressure has dropped
significantly over a long period of time
(which is normal for any tire), the indi-
cator lamp will come on with a yellow
lamp.
This alerts you to have the tires inflated
to the specified pressures as soon as
possible.
If you are prompted to check the
tire pressure shortly after a
correction has been made, this indi-
cates that the corrected values were
not accurate. Please check the inflation
pressure again and make corrections
according to the inflation pressure
table. Then activate the system once
again.

<

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Tire Pressure Control (RDC)

*
In the event of a flat tire

If there is a tire failure with loss of pres-
sure, the indicator lamp comes on with
a red lamp. In addition, an acoustic
signal is sounded.
If this occurs, reduce vehicle speed
immediately to stop the vehicle in a safe
location. Avoid hard brake applications.
Do not oversteer. Replace the wheel
and flat tire.
The space-saver spare tire is
provided for temporary use only in
the event of tire pressure loss. It does
not have RDC electronics and is not
monitored. A full-size spare tire that has
the same dimensions as the tires
already mounted on the vehicle is
equipped with the necessary RDC elec-
tronics, and will be also monitored once
the tires have been mounted and the
system activated.

<

RDC cannot alert you to severe
and sudden tire damage caused
by external factors.

<

Have the tires changed by your
BMW center.
Your BMW center has been trained to
work with the RDC system and is
equipped with the necessary special
tools.

<

System interference

Local devices using the same radio
frequency can interfere with the RDC.
The yellow indicator lamp will come on
during the malfunction.
The indicator lamp also comes on

>

in the event of a system fault.

>

if a wheel is mounted without the
appropriate electronics.

>

if, in addition to the spare tire, addi-
tional wheels with RDC electronics
are on board.
Please contact your BMW center for
additional information.

87n
IndexDataTechnologyRepairsCar careControlsOverview
Side lamps
With the switch in this position,
the front, rear and side vehicle
lighting is switched on.
For lighting on one side for parking as
an additional feature, refer to page 88.
Low beam headlamps
When you switch the ignition off
with the low beam headlamps
on, only the side lamps will
remain on.
"Follow-me-home lamps:"
If you activate the headlamp
flasher after parking the vehicle, then
the low-beam headlamps will come on
for a short time. You can also have this
function deactivated.<
460us035
"LIGHTS ON" warningWhen you open the driver's door after
turning the ignition key to position 0,
buzzer sounds for a few seconds to
remind you that the headlamps have
not been switched off.Daytime-driving lamps
*
If you desire, the light switch can be left
in the second position:
When the ignition is switched off, the
external lighting is also switched off.
Turn the rotary dial to adjust the
illumination intensity.
460us036
Side lamps/Low beams
Instrument panel lighti
ng

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High beams/Parking lamps Fog lamps Interior lamps 1 High beams (blue indicator lamp)
2 Headlamp flasher (blue indicator
lamp)
3 Parking lampsParking lamp, left or rightAs an additional feature, you can
illuminate your vehicle on either side
for parking, if you wish to do so:
With the ignition key in position 0, push
the lever in the appropriate direction.
The lever engages in the turn signal
position.46cde094
Front fog lamps
A green indicator lamp appears
in the instrument cluster to
indicate that the front fog lamps
are on.
460us038
The interior lamps operate automati-
cally.To switch the interior lamps on
and off manuallyPress the button briefly.
If you want the interior lamps to remain
off all the time, press and hold the
button for approx. 3 seconds.
To revert to normal operation, press the
button briefly.Footwell lamps
*
The footwell lamps operate in the same
way as the interior lamps.46cde026