2001 BMW 325Ci CONVERTIBLE tire pressure

28n
Tire inflation pressure Comply with tire approval
specificationsThe inflation pressures in the table
apply to tires from BMW-approved
manufacturers. Your BMW center is
familiar with these manufacturers.
Higher pressures may be specified for
tires made by other manufacturers. You
will find a list of approved tires begin-
ning on page 137.
Your vehicle is equipped with tires that
meet US and European standards. We
recommend the exclusive use of tires
approved by BMW.BMW Tires
All pressure specifications in
the table are indicated in psi
(kilopascal) for cold tires
(cold = ambient temperature)
325CiAll summer tires 29 (200) 33 (230) 36 (250) 44 (300)
All winter tires 32 (220) 36 (250) 39 (270) 46 (320)
330Ci All summer and winter tires 32 (220) 36 (250) 39 (270) 46 (320)
All Space-saver spare tire 61 (420)
For all season tires, use the same tire inflation pressure as for summer tires.
BMW 325Ci: when using the tire 205/50 R 17 93 W extra load, the
inflation pressure increases by 3 psi (20 kilopascal).
BMW 330Ci: when using the tire 225/45 R 17 91 W and mixed tires 225/45 ZR 17
(front) + 245/40 ZR 17 (rear) the inflation pressure decreases by 3 psi
(20 kilopascal).

Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
31n
IndexDataTechnologyRepairsCar careControlsOverview
Driving:
Steering/Ignition lock69
Starting the engine69
Switching off the engine70
Parking brake71
Manual transmission72
Automatic transmission with
Steptronic73
Turn signal indicator/Headlamp
flasher76
Washer/Wiper system76
Rear window defroster78
Cruise control79
Everything under control:
Odometer81
Tachometer81
Energy Control81
Fuel gauge82
Coolant temperature gauge82
Service Interval Display82
Check Control83
Computer83
Technology for driving comfort
and safety:
Park Distance Control (PDC)87
Automatic Stability Control plus
traction (ASC+T)88
Dynamic Stability Control
(DSC)89
Tire Pressure Control (RDC)91Lamps:
Side lamps/Low beams93
Instrument panel lighting93
High beams/Parking lamps94
Fog lamps94
Interior lamps94
Controlling the climate
for pleasant driving:
Air conditioner96
Automatic climate control102
Seat heating107
Interior convenience:
Glove compartment107
BMW Universal Transmitter108
Storage facilities110
Cellular phone111
Ashtray, front111
Cigarette lighter112
Ashtray rear112
Loading and transporting:
Ski bag113
Cargo loading114
Roof-mounted luggage rack for
hardtop116

60n
Drive with your safety belt onFasten your safety belt at the beginning
of every trip.
To fasten:
Make sure you hear the catch engage in
the belt buckle.
To release:
Press the red button in the buckle, hold
the belt firmly and guide it back into its
reel.
The safety belt system will automati-
cally adapt to your body contours.
Before putting on your safety belts
in the rear, take them out of the
holder.<
For care instructions, refer to page 154.46cus022
For your safety, please comply
with the following instructions for
wearing safety belts. If you do not, the
safety belts may not be able to provide
their maximum protection. The
following information also applies to
your passengers:
Never allow more than one person to
wear a single safety belt. Never allow
infants or small children to ride in a
passenger's lap.
Avoid twisting the belt while routing it
firmly across your hips and shoulder.
Do not allow the belt to rest against
hard or fragile objects in your pockets.
Never route the belt across your neck,
do not run it across sharp edges and
ensure that the belt does not become
caught or jammed.
Avoid wearing clothing that prevents
the belt from fitting properly. Pull on the
belt periodically to readjust the tension
across your shoulder. In the event of a
frontal impact, a loose lap belt could
slide over your hips, leading to abdom-
inal injury. In addition, the safety belt's
restraint effectiveness is reduced if the
belt is worn loosely.
Expectant mothers should always wear
the safety belt, taking special care to
place the lap belt over the lower hips,
where it does not exert pressure on the
abdominal area.
Leave the rear safety belts in the
holders if they are not needed to avoid
unwanted movement from the safety
belts at high speeds.<
For child restraint system installation,
refer to page 64.
If the safety belt system has been
subjected to the stresses involved
in an accident or otherwise damaged:
Have the entire safety belt mechanism
replaced by your BMW center,
including the safety belt tensioner. In
addition, have your BMW center
inspect the safety belt anchors. If a
child restraint system was in the vehicle
during an accident, consult the manu-
facturer's instructions regarding
replacement.<
Safety belts

91n
IndexDataTechnologyRepairsCar careControlsOverview
Tire Pressure Control (RDC)
*
The conceptRDC 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 if necessary.
Then activate the system.
This indicator lamp in the instru-
ment cluster will inform you if
the tire pressure is not correct.
Activate the systemDepending on the type of equipment,
the switch either has the letters RDC on
it or the RDC-symbol.
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.
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.46cus046
In the event of loss in tire
pressureIf 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.<

92n
Tire Pressure Control (RDC)
*
In the event of a flat tireIf 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 a flat tire. It does not have
RDC electronics and is not monitored.<
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 interferenceLocal 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 RDC
electronics.
>if additional wheels with RDC elec-
tronics are on board.
Please contact your BMW center for
additional information.

Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
119n
IndexDataTechnologyRepairsCar careControlsOverview
Special operating instructions:
Break-in procedures120
Driving notes121
Catalytic converter121
Antilock Brake System
(ABS)122
Disc brakes125
Brake system126
Winter operation127
Power steering129
Cellular phones129
Radio reception129
Hardtop130
Wheels and tires:
Tire inflation pressure132
Tire condition132
Tire replacement133
Tire rotation134
Wheel and tire
combinations135
Winter tires136
Snow chains136
Approved wheel and tire
specifications137Under the hood:
Hood140
Engine compartment142
Washer fluids144
Washer nozzles144
Engine oil145
Coolant147
Brake fluid148
Vehicle Identification
Number149
Care and maintenance:
The BMW Maintenance
System150
Caring for your vehicle151
Cleaning and care of the
convertible top157
Airbags159
Vehicle storage160
Laws and regulations:
Technical modifications161
California Proposition
65 Warning161
OBD interface socket162
Car care

121n
IndexDataTechnologyRepairsCar careControlsOverview
Brakes:
Do not drive with your foot resting
on the brake pedal. Even light but
consistent pedal pressure can lead to
high temperatures, brake wear, and
possibly to brake failure.
Aquaplaning:
When driving on wet or slushy roads,
reduce vehicle speed. If you do not, a
wedge of water may form between the
tires and the road surface. This
phenomenon is referred to as aqua-
planing or hydroplaning. It is character-
ized by a partial or complete loss of
contact between the tires and the road
surface. The ultimate results are loss of
steering and braking control.
Driving through water:
Do not drive through water on the road
if it is deeper than 1 ft (30 cm), and then
only at walking speed. Otherwise, the
vehicle's engine, the electrical systems
and the transmission may be damaged.
Clothes hooks (for the hardtop):
When suspending clothing from the
hooks, be sure that they will not
obstruct the driver's vision. Do not hang
heavy objects on the hooks. If you do
so, they could cause personal injury
during braking or evasive maneuvers.<
The catalytic converter reduces harmful
exhaust emissions.
It is designed for use with unleaded fuel
only. Even minute quantities of lead
would be enough to permanently
damage both the catalytic converter
and the system oxygen sensor.
To ensure efficient, trouble-free engine
operation and to avoid potential
damage:
>Be sure to comply with the scheduled
maintenance requirements.
>Fill the fuel tank well before it is
empty.
>Tow-start only when the engine is
cold. If you attempt to tow-start with
a warm engine, unburned residual
fuel in the catalytic converter could
ignite and cause damage. It is better
to jump-start the vehicle with outside
assistance.
>Avoid other situations in which the
fuel is not burned, or burns incom-
pletely, such as engaging the starter
frequently or for extended periods, or
repeated start attempts in which the
engine does not start (stopping and
restarting an engine which is running
properly does not present a problem).
Never allow the engine to run with
any of the spark plug cables discon-
nected.Be sure to comply with the
preceding instructions to prevent
unburned fuel from reaching the cata-
lytic converter. If you do not, the cata-
lytic converter could respond by
overheating, leading to serious
damage.
Very high temperatures occur in any
vehicle equipped with a catalytic
converter. Heat shields are installed
adjacent to some sections of the
exhaust system. Never remove these
shields; do not apply undercoating to
their surfaces. When driving, standing
at idle, and parking the vehicle, take
extra care to avoid contact between the
exhaust system and flammable mate-
rials (grass, hay, leaves, etc.). Such
contact could lead to a fire, resulting in
serious personal injury and property
damage.<
Driving notes Catalytic converter

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.