2002 BMW Z3 ECU

Congratulations, and thank you for choosing a BMW.
Thorough familiarity with your vehicle will provide you with enhanced control and
security when you drive it. We therefore have this request:
Please take the time to read this Owner's Manual and familiarize yourself with the
information that we have compiled for you before starting off in your new BMW.
It contains important data and instructions intended to assist you in gaining maxi-
mum use and satisfaction from the unique range of technical features on your BMW.
The manual also contains information on vehicle maintenance designed to enhance
operating safety and contribute to maintaining the value of your vehicle throughout
an extended service life.
For more detailed information refer to the supplemental manuals.
This manual is supplemented by a Service and Warranty Information Booklet
(US models) or a Warranty and Service Guide Booklet (Canadian models). We
recommend that you read this publication thoroughly.
Your BMW is covered by the following warranties:
Ð New Vehicle Limited Warranty
Ð Limited Rust Perforation Warranty
Ð Federal Emissions System Defect Warranty
Ð Federal Emissions Performance Warranty
Ð California Emissions Control System Limited Warranty
Detailed information about these warranties is listed in the Service and Warranty
Information Booklet (US models) or in the Warranty and Service Guide Booklet
(Canadian models).
We wish you an enjoyable driving experience.
BMW AG

Preface

30n
Keys1 Master key with battery-powered
lamp (switch on by pressing the BMW
symbol)
2 Master key without lamp
3 Spare key for storage in a safe place
such as your wallet. This key is not
intended for continuous use
4 Door and ignition key
The luggage compartment lid and the
storage boxes
* cannot be opened
with this key Ð this is useful for valet
parking, for instance
365de122
Key with remote control unit
*
1 Master key with remote control unit
2 Spare key for storage in a safe place,
such as in your wallet. This key is not
intended for constant use
3 Door and ignition key
The locks for the luggage compart-
ment lid and the storage boxes
*
cannot be operated with this key Ð
this is useful for valet parking, for
instance.
Some symbols on the remote
control buttons can differ from
those shown in the illustration.<
365de122
Replacement keysare available exclusively through your
BMW center. Your BMW center is obli-
gated to ensure that a person
requesting a key is authorized to do so
since the keys belong to a security
system (refer to "Electronic vehicle
immobilizer" on the next page).
If possible, take all master keys
that belong to the vehicle with you
when you pick up your replacement
keys.
Whenever you receive a new
replacement key, turn that key to
position 2 in the ignition lock once (igni-
tion switched on) and then back. This
allows the electronic vehicle immobi-
lizer to "learn" the new key.<
New master key with remote control,
refer to page 144.

31n
IndexDataTechnologyRepairsMaintenanceControlsOverview
Electronic vehicle immobilizerThe key to securityThe electronic vehicle immobilization
unit increases the anti-theft protection
of your BMW Ð you do not have to
adjust or activate anything. This elec-
tronic immobilization system is
designed to reduce the susceptibility of
the vehicle to theft by making it impos-
sible to start the engine using any
means other than the special keys
furnished with the vehicle.
Your BMW center can cancel the elec-
tronic system authorization for indi-
vidual keys (in the event a key is lost,
for instance). A deactivated key can no
longer be used to start the engine.
How the electronics workAt the heart of this system is an elec-
tronic chip which is integrated into the
key. The lock mechanism itself is actu-
ally a dual-function device, simulta-
neously serving as a communications
interface designed to allow the security
system to maintain a continuous stream
of variable, vehicle-specific signals with
the electronic circuitry in the key. The
system will not release the ignition, fuel
injection and starter unless it recog-
nizes an "authorized" key.
Force applied to the key can
damage the integrated electronic
circuitry. A damaged key can no longer
be used to start the engine.<

33n
IndexDataTechnologyRepairsMaintenanceControlsOverview
Opening and closing Ð from the outsideWith the remote control
*
The remote control gives you an excep-
tionally convenient method for
unlocking and locking your vehicle.
Furthermore, it provides an additional
function which you can only execute via
the remote control:
>To switch on the interior lamps, refer
to page 34.
With this function, you can also
"search for" the vehicle, when parked
in an underground garage, for
instance.
Whenever you unlock (lock) the vehicle,
you simultaneously deactivate (activate)
the anti-theft system and switch the
interior lamps on (off).
Master keyKeys with remote control units are
master keys, refer to page 30.
Since passengers or animals
remaining in the vehicle might be
able to lock the doors from the inside,
always take the vehicle keys with you
so that the vehicle can be opened again
from the outside at any time.<
Every transmission is indicated by a
light signal. If the signal no longer lights
up when a button is pressed and
locking with the remote control is no
longer possible:
Change the battery, refer to page 144.367de383
To prevent unauthorized use of
the remote control, surrender only
the door and ignition key 3 or the spare
key 2 (refer to page 30) when leaving
the vehicle for valet parking, for
example.
In the event of a system malfunction,
please contact your BMW center. You
can also obtain replacement keys
there.<

34n
Opening and closing Ð from the outsideTo unlockPress button 1.
The interior lamps are activated at the
same time.367de326
To lock and securePress button 2.
Never use the remote control to
lock the doors when leaving
passengers in the vehicle, as they
would then be unable to unlock the
door from the inside.< 367de327
To switch on the interior lampsWith the vehicle locked, press button 3.367de328

40n
Manual convertible top, roadsterWeather protectionThe convertible top combines reliable
protection from the elements with
simple, convenient operation. Here are
a few tips to ensure that you have plea-
sure with your roadster.
It is advisable to close the convertible
top when the vehicle is parked. The
closed convertible top not only protects
the passenger compartment from
unforeseeable damage from the
weather, it also provides a certain
degree of theft protection. In addition,
keep valuables only in the locked
luggage compartment, even with the
convertible top closed.
Never mount a roof-mounted luggage
rack on the convertible top. Please
contact your BMW center for suitable
securing devices and additional acces-
sories.
To prevent damage, do not operate the
convertible top at temperatures at the
freezing point.
To open 1. With the doors closed, lower the side
windows a few inches (centimeters)
2. To release the convertible top: pull
the levers outward on the left and the
right of the convertible top frame
(refer to the illustration)367de046
3. Raise the convertible top approx. 8 in
(20 cm) from the convertible top
frame on the inside to relieve tension
on the top, refer to arrow 1
Be sure that the convertible top
folds at the front linkage joints
first, refer to arrow 2. If it does not, the
convertible top linkage could be bent.<
4. Continue to raise the top at the front
and push it toward the rear into the
convertible top compartment.
In the process, make sure the rear
window is laid down evenly and free
of creases. To prevent the rear
window from being scratched, a soft
cloth should be laid in the window
fold367de399

41n
IndexDataTechnologyRepairsMaintenanceControlsOverview
Manual convertible top, roadster5. Fold the release levers against the
convertible top frame.
In order to avoid subsequent
moisture damage, do not open
and store the convertible top when it is
wet.<
To mount the coverThe illustration depicts a representative
schematic of the fasteners for the
convertible cover.
To secure, press the outer ring of the
cover fastener onto the mating piece on
the vehicle (refer to the arrows).367de274
The attachment points of the cover are
indicated by the four arrows in the illus-
tration.
1. Position the convertible cover on the
convertible top compartment and
align the upper portions of the
fasteners with the lower portions on
the vehicle
2. Lift the cover at the rear, reach
underneath it and engage the two
middle fasteners
3. Attach the front fasteners367us669

42n
Manual convertible top, roadster4. Push the peripheral frame of the
cover under the edge of the convert-
ible top compartment
5. Check the convertible cover to be
sure it is properly secured.
In order to avoid damage and
soiling of the inside of the convert-
ible top, always drive with the cover
secured in place.<
Be sure that the cover is secured
properly on the vehicle. If it is not
firmly secured, the flow of air while
driving could loosen the cover at higher
speeds.< 367us077
To close1. To remove the convertible top cover:
>Loosen the fasteners. Pull the cap
of the latch upward, refer to the
arrow367de724
>Loosen the front fasteners (outer
arrows)
>Pull the outer frame of the cover
under the edge of the convertible
top compartment
>Lift the cover from the rear and
release the middle fasteners
(middle arrows)367us670