change time BMW 325Ci CONVERTIBLE 2001 E46 Owner's Manual

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IndexDataTechnologyRepairsCar careControlsOverview
Car Memory, Key Memory How the system functionsYou have probably frequently wished
that you could configure individual
functions of your vehicle to reflect your
own personal requirements. In engi-
neering your vehicle, BMW has
included several user-defined func-
tions in the vehicle's design. Your BMW
center can make these settings for you
in accordance with your wishes.
There are settings related to the vehicle
("Car Memory") and settings related to
individuals ("Key Memory"). You can
have up to four different basic settings
adjusted for four different persons. The
only requirement is that each person
uses his or her own remote control key. 463de029
When your vehicle is unlocked with the
remote control, the vehicle recognizes
the individual user by means of a data
exchange with the key, and makes
adjustments accordingly.
In order for you to distinguish between
different keys, colored decals are
supplied together with the keys.
What the system can doYour BMW center can provide you with
details on the capabilities of the Car
Memory and Key Memory systems.
A few examples follow below:
Examples for Car Memory:
>Various signals used as acknowl-
edgement when locking or unlocking
your vehicle.
>Deactivating/activating the Follow-
Me-Home lamps function.
>Activating/deactivating daytime
running lamps
*.
Examples for Key Memory:
>Automatic adjustment of the driver's
power seat.
>Locking your vehicle after starting off.
>When unlocking your vehicle, first
unlock the driver's door, then the rest
of the vehicle.
You will see this symbol
throughout the Owner's Manual. It
is to remind you at appropriate places
of the settings that are available to
you.<

84n
Computer ClockIf you wish to have a permanent time
display, you can make this adjustment
in the radio display (refer to the Radio
Owner's Manual).
You can adjust the clock and the time
display in the car radio as follows.
Adjustments From ignition key position 1:
To set ahead: turn the right button to
the right.
To set back: turn the right button to the
left.
The adjustment speed will increase the
longer you hold the button down.
To change the display mode: press the
knob briefly.
Every time you press the knob, the
clock display alternates between the
12-hour or 24-hour mode.
In ignition key position 0: the time is
displayed for a few seconds after you
press the left button (refer to "Odome-
ter" on page 81).46cus007
Outside temperature You can change the units of measure
(6/7) for the outside temperature
display by pressing the right-hand reset
button in the instrument cluster while
the temperature display is active.46cus008

127n
IndexDataTechnologyRepairsCar careControlsOverview
Winter operationThe onset of winter is often accompa-
nied by rapid changes in weather.
Adaptations in driving style should be
accompanied by preparations on the
vehicle itself to ensure that your
progress through the winter remains
safe and trouble-free.CoolantBe sure that the coolant mixture
contains the year-round ratio of 50:50
water and extended-duty antifreeze/
corrosion protection. This mixture
provides protection against freezing
down to approx. Ð34 7 (Ð37 6).
Replace the coolant every four years.LocksBMW door lock deicer can be used to
free them if frozen. This deicer also
contains lubricant.
After using the deicer, we recommend
you treat the door lock with BMW lock
cylinder lubricant.
Rubber seals and components To prevent the weather-stripping from
freezing, apply a spray-on rubber treat-
ment or silicone spray to the door, hood
and luggage compartment lid seals.
A full range of car care products is
available from your BMW center. *
BMW snow chains can be mounted on
both summer and winter tires. Mount
them in pairs on the rear wheels only
and comply with the manufacturer's
safety precautions. Do not exceed a
maximum speed of 30 mph (50 km/h).
In this rare situation, it may be effective
to deactivate the ASC+T/DSC for a
brief period of time. Refer to page 88.
Starting offWhen starting up from a full stop in
deep snow or when "rocking" the
vehicle to free it, it may be effective to
deactivate the ASC+T/DSC system for
a brief period of time. Refer to page 88.Driving on low-traction road
surfacesUse smooth, gentle pressure to control
the accelerator pedal. Avoid excessive
engine speeds and shift to the next
higher gear at an early point. On down-
hill grades or slopes, shift down to the
next lower gear at an early point. Main-
tain an adequate distance between
yourself and the vehicle ahead.

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Winter tiresChoosing the right tireBMW recommends winter tires (M+S
radial tires) for driving in adverse winter
road conditions. So-called all-season
tires with the M+S identification mark
do indeed possess better winter trac-
tion than summer tires that have the H,
V, W, Y and ZR speed ratings, but they
generally fail to provide the same levels
of performance as winter tires.
In the interest of safe tracking and
steering response, install winter tires
made by the same manufacturer having
the same tread configuration on all four
wheels.
Mount only winter tires which have
been approved by BMW. Any BMW
center will be glad to provide you with
information on the best winter tires for
every particular driving condition.
Do not exceed specified
maximum speeds
Never exceed the maximum speed
for which the tires are rated.
Unprofessional attempts by laymen to
service tires can lead to damage and
accidents.
Have this work performed by skilled
professionals only. Any BMW center
has the required technical knowledge
and the proper equipment and will be
happy to assist you.<
Tire condition, tire pressureWinter tires display a perceptible loss in
their ability to cope with winter driving
conditions once the tread wears to
below 0.16 in (4 mm), and therefore in
the interest of safety, should be
replaced.
Comply with the specified tire inflation
pressures Ð and be sure to have the
wheel and tire assemblies balanced
every time you change the tires.
StorageAlways store tires in a cool, dry place.
Store them away from light whenever
possible. Protect the tires against
contact with oil, grease and fuel.Snow chains
*
Use narrow-link BMW snow chains
on
winter tires only in pairs and only on the
rear wheels. Comply with all manufac-
turer's safety precautions when
mounting the chains.

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Coolant Brake fluidAdding coolant Wait until the engine cools before
removing the cap from the expansion
tank. The needle of the coolant temper-
ature gauge in the instrument cluster
must be located in the blue zone. If it
is not, there is a danger of scalding.
1 Turn the cap slightly counterclock-
wise in order to allow accumulated
pressure to escape. Then open.
2 If the coolant is low, slowly add
coolant until the correct level is
reached Ð do not overfill.
The coolant is a mixture of water and
extended-duty antifreeze with corrosion
inhibitor. Always maintain the
prescribed all-season 50:50 mixture
ratio for year-round protection against
internal corrosion. No other additives
are required.
Replace the coolant every four years.The brake warning lamp comes on
when the parking brake has been
released:
Check the brake fluid level and if
necessary, top up to the "MAX" mark.
For adding brake fluid or for deter-
mining and correcting the cause of
brake fluid loss, consult your BMW
center. Your BMW center is familiar
with the specifications for factory-
approved brake fluids (DOT 4).
Brake fluid loss can result in extended
pedal travel. Comply with the informa-
tion provided on page 126.
460de128
Brake fluid is hygroscopic, that is,
it absorbs moisture from the air
over time.
In order to ensure the safety and reli-
ability of the brake system, have the
brake fluid changed every two years by
an authorized BMW center. Refer also
to the Service and Warranty Information
Booklet (US models) or the Warranty
and Service Guide Booklet (Canadian
models). Brake fluid is hazardous to
health and damages the vehicle's paint.
You should always store it in its original
container and in a location that is
inaccessible to children.
Do not spill the fluid and do not fill the
brake fluid reservoir beyond the "MAX"
mark. The brake fluid could ignite upon
contact with hot engine parts and
cause serious burns.<
Comply with the applicable
environmental laws regulating
the disposal of brake fluid.<

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The BMW Maintenance System has
been designed as a reliable means of
providing maximum driving and operat-
ing safety Ð and as cost-effectively as
possible for you.
Please keep in mind that regular main-
tenance is not only necessary for the
safety of your vehicle, but also plays a
significant role in maintaining the resale
value of the vehicle.
Service Interval DisplayAdvanced technology is employed
to calculate the optimal maintenance
intervals. These are then indicated in
the Service Interval Display. While
conventional systems rely on distance
traveled alone to determine when
service is due, the BMW Maintenance
System has for years considered the 46cus018
actual conditions under which the
vehicle operates, because miles can be
traveled in many different ways:
From a maintenance point of view,
62,000 miles (100,000 km) of short-
distance urban driving are not equiva-
lent to the same distance covered at
moderate speeds in long-distance
highway travel.
The BMW Maintenance System
includes the Engine Oil Service and
Inspections I and II.
Determining the maintenance intervals
according to the actual use of the
vehicle covers every kind of operating
situation. However, even those who
drive only short distances Ð significantly
less than 6,000 miles (10,000 km) annu-
ally Ð should have the engine oil
changed at least every 2 years, since oil
deteriorates over time, regardless of
use.Service and Warranty Information
Booklet (US models)/Warranty
and Service Guide Booklet
(Canadian models)For additional information on mainte-
nance intervals and procedures, please
refer to the Service and Warranty
Information Booklet (US models), or the Warranty and Service Guide Booklet
(Canadian models).
As a precaution against rust, it is advis-
able to have the body checked for
damage from rocks or gravel at the
same time, depending upon operating
conditions.
Have your BMW center perform
maintenance and repair.
Your BMW center is always informed on
the latest maintenance work and repair
techniques and equipped with the
required special tools. In addition,
checking parts known from experience
to be subject to wear is a permanent
part of the maintenance specifications.
Be sure that all maintenance work is
confirmed in the Service and Warranty
Information Booklet (US models), or in
the Warranty and Service Guide
Booklet (Canadian models). These en-
tries are your verification for the regular
maintenance of your vehicle and are
required for the performance of
warranty repairs.<
The BMW Maintenance System

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Vehicle storage
If you plan on parking the vehicle
for more than three months, have
the maintenance operations described
on this page performed.<
Preparations for storageHave your BMW center perform the
following procedures:
1 Clean and apply a rustproofing agent
or other treatment to the engine,
engine compartment, undercarriage,
axles and major components in
accordance with approved repair
procedures. First wash the vehicle
surface, then clean the interior,
following up with paint and chrome
care, after which you clean the
rubber seals for the hood and doors.
2 Change the engine oil and oil filter at
operating temperature. As an addi-
tional corrosion protection measure,
an anticorrosive agent can be added
to the engine in accordance with the
manufacturer's instructions.
3 Check the coolant level and concen-
tration and top up if necessary.
4 Check the fluid level of the wind-
shield washer fluid reservoir and top
up if necessary.
5 Fill the fuel tank completely to pre-
vent the formation of condensation.
6 Increase the tire inflation pressure to
51 psi (350 kilopascal).
Before parking the vehicle1 To prevent the brake discs and
drums from corroding, dry the park-
ing and footbrake by applying the
brakes.
2 Park the vehicle in a covered, dry and
well-ventilated space. Place the
transmission in 1st gear or set the
selector lever to the "P" position.
Chock the wheels to prevent the
vehicle from rolling if necessary. Do
not set the parking brake.
3 Remove the battery, charge it
completely and store it in a cool (but
frost-free) room.
4 Remove the hardtop and store
separately. Refer to page 130.
5 Close the convertible top.During storageRecharge the battery every six months.
If it is not recharged, it will not be
serviceable. Every time the battery is
drained, especially over extended
periods, its service life is reduced.
Removing the vehicle from
storageRecharge the battery if the "Magic
Eye"
* turns black. Refer to page 176.
Then have Inspection I performed by
your BMW center, including a brake
fluid replacement if necessary. Refer
to the Service Manual.

176n
Changing a wheel Battery Driving with the space-saver
spare tireDrive cautiously and do not exceed a
speed of 50 mph (80 km/h).
Be aware that vehicle handling will be
altered. Slower brake response time,
longer braking distances and changed
steering characteristics may be
anticipated when approaching limit
conditions.
The changes in handling characteristics
will be even more pronounced in
conjunction with winter tires.
Only one space-saver spare tire
*
may be mounted at a time. Mount
a wheel and tire with the same size
and specifications as the others at the
earliest possible opportunity. Maintain
correct tire pressures. Refer to
page 28.<
LocationThe battery is located at the right-rear
of the luggage compartment. Remove
the luggage compartment floor panel
(refer to page 40), and give a screw-
driver or a coin a f-turn counter-clock-
wise to release and remove the two
fasteners, plus an additional fastener in
the top center side trim panel. In order
to remove the storage tray, slide the
side trim panel slightly upward.
Battery posts, terminals, and
related accessories contain lead
and lead compounds. Wash hands after
handling.<46cde045
Charge conditionYou can read the charge condition of
the battery with the "Magic Eye"
*
(a hydrometer):
>Green: adequate charge.
>Black: not adequately charged. The
battery must be recharged. Please
contact your BMW center for addi-
tional information.
>Yellow: replace the battery.
The service life specified for the
battery can be achieved only if it is
always kept adequately charged. If the
vehicle is primarily used for stop-and-
go traffic, be sure to check the charge
state more often.<
46cde044

178n
BatteryRemoval and installation
Do not disconnect the battery
when the engine is running. If you
do so, the ensuing voltage surge will
damage the vehicle's onboard
electronics.
Do not make any modifications in the
wires to the positive terminal. If you do
so, the protective function of the safety
battery terminal is no longer ensured.
Repair and disposal must be performed
by trained technicians only.<
When removing the battery, disconnect
the cable on the negative terminal first,
then the cable on the positive terminal.
Loosen the center adjusting screw on
the battery retaining strap (use the
screwdriver included with the onboard
tool kit) and disconnect the strap.
When installing a battery, connect the
positive terminal first, then connect the
negative terminal.
When installing a battery, be sure
that it is mounted properly and that
the retaining bracket is installed with the
center adjustment screw. If this is not
done, the battery will not be adequately
secured in case of an accident.<
Charging the battery Charge the battery in the vehicle only
when the engine is not running.
Before doing any work on the
electrical system, be sure to
unclamp the cable from the battery's
negative terminal. Failure to do so can
result in short circuits, a fire or personal
injury.<
If you plan to park the vehicle for longer
than 4 weeks, disconnect the battery
from the vehicle electrical system by
disconnecting the cable at the negative
terminal. Have the battery recharged
with an appropriate battery charger.
If the vehicle is parked for more than
12 weeks, remove the battery, recharge
it and store it in a cool yet frost- and
dust-free area. During storage, have the
battery recharged every 3 months.
Also, recharge the battery before it is
reinstalled. If this is not done, the
battery will not be serviceable. Every
time the battery is discharged, espe-
cially over extended periods, its service
life is reduced.
Return used batteries to a
recycling center or your BMW
center. Maintain the battery in an
upright position for transport and
storage. Secure the battery to prevent it
from tilting during transport.<
Storage periods during which the
battery is disconnected are not
taken into consideration by the Service
Interval Display for changing the brake
fluid.
For this reason, be sure that the brake
fluid is changed every two years,
regardless of the information displayed.
Please read the pertinent information
on page 148.<

192n
Tire Pressure Control* Self-diagnostics This system regularly checks tire pres-
sure and monitors all four tires even
while driving, so you do not have to.
Behind the valve stem in every wheel,
there is an extended-life electronic chip
that contains a pressure sensor, a
transmitter and a battery. The pressure
is measured in extremely short time
intervals and then transmitted by a
radio signal. If an irregularity is
detected, the transmission rate is
increased.
Located near each wheel and
embedded in the vehicle body is an
antenna that receives signals from the
wheel. A central electronics system
evaluates the quadruple signals and
forwards any changes.
The RDC provides an important contri-
bution to driving safety.46cde078
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 come on brießy
after the ignition has been turned on, for
example.
While you are driving, the functional
status of the actuator motors (for the
windshield wipers, power windows,
seats, etc.) is constantly being analyzed
by electrical measurements in the relays.
In the same manner, the electrical
resistance 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 detected
immediately by a current ßuctuation that 46cde052
would necessarily accompany it.
The fault
would be indicated immediately 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 ßaps of
the heating and ventilation system travel
to the nearest limit position. This action
ensures that the system will be able to
provide defrosting, regardless of other
circumstances, e. g. if a malfunction in the
air conditioner/automatic climate control
system
* should occur during the night
while the vehicle is parked.
A calibration cycle runs every tenth time
the engine is shut off. During this cycle,
the actuator motors of all the heating and
ventilation ßaps travel to their limit stops
in both directions. The limit positions and
the return travel paths are checked in this
manner in order to ensure that appro-
priate adjustments for the operating
elements can be made at any time.
You will hear the sounds of the air ßaps as
the air conditioner/automatic climate
control* carries out its self-diagnostic
functions after the ignition has been shut
off. All of the other self-diagnostics func-
tions operate silently in the background.
Any possible faults detected during these
self-diagnostics can be read out and
corrected by your BMW center
during the
next regularly scheduled maintenance.