2000 BMW 540I SEDAN 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 car. It
contains important data and instructions intended to assist you in gaining maximum
use and satisfaction from the unique range of technical features on your BMW. The
manual also contains information on care and maintenance designed to enhance
operating safety and contribute to maintaining the value of your BMW throughout an
extended service life.
This Owner's Manual should be considered a permanent part of this vehicle.
It should stay with the vehicle when sold to provide the next owner with important
operating, safety and maintenance information.
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 Warranty Rust Perforation
Ð Federal Emissions System Defect Warranty
Ð Federal Emissions Performance Warranty
Ð California Emission 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

Contents

Overview
Controls and features

Cockpit16
Instrument cluster18
Indicator and warning lamps22
Multifunction steering wheel
(MFL)25
Hazard warning flashers27
Warning triangle 27
First-aid kit 27
Refueling28
Fuel specifications29
Tire inflation pressure29

Locks and security systems:

Keys34
Electronic vehicle
immobilizer35
Central locking system36
Opening and closing Ð from the
outside36
With the key 36
Opening and closing Ð from the
inside40
Luggage compartment lid/
Tailgate41
Luggage compartment44
Alarm system45
Electric power windows47
Sliding/Tilt sunroof 48

Adjustments:

Seats 50
Steering wheel 54
Mirrors54
Seat, mirror and steering wheel
memory56
Car Memory, Key Memory58

Passenger safety systems:

Safety belts59
Airbags60
Child restraints 64
Child seat security66
Child-safety locks66

Driving:

Steering/Ignition lock67
Starting the engine68
Switching off the engine69
Parking brake69
Manual transmission70
Automatic transmission 71
Automatic transmission with
Steptronic 74
Indicator/Headlamp flasher77
Wiper/Washer system77
Rear window defroster79
Cruise control80

Everything under control:

Odometer, outside temperature
display82
Tachometer83
Energy control83
Fuel gauge83
Temperature gauge84
Service Interval Display84
Check Control85
Onboard computer88

Technology for safety and
convenience:

Park Distance Control (PDC) 90
Automatic Stability Control plus
Traction (ASC+T)/Dynamic
Stability Control (DSC) 91
Tire Pressure Control (RDC) 92

32n
Locks and security systems:
Keys34
Electronic vehicle
immobilizer35
Central locking system36
Opening and closing
Ð from the outside36
With the key36
Opening and closing
Ð from the inside40
Luggage compartment lid/
Tailgate41
Luggage compartment44
Alarm system45
Electric power windows47
Sliding/Tilt sunroof48
Adjustments:
Seats50
Steering wheel54
Mirrors54
Seat, mirror and steering wheel
memory56
Car Memory, Key Memory58
Passenger safety systems:
Safety belts59
Airbags60
Child restraints64
Child seat security66
Child-safety locks66Driving:
Steering/Ignition lock67
Starting the engine68
Switching off the engine69
Parking brake69
Manual transmission70
Automatic transmission71
Automatic transmission with
Steptronic74
Indicator/Headlamp flasher77
Wiper/Washer system77
Rear window defroster79
Cruise control80
Everything under control:
Odometer, outside temperature
display82
Tachometer83
Energy control83
Fuel gauge83
Temperature gauge84
Service Interval Display84
Check Control85
Onboard computer88
Technology for safety and
convenience:
Park Distance Control (PDC)90
Automatic Stability Control plus
Traction (ASC+T)/Dynamic
Stability Control (DSC)91
Tire Pressure Control (RDC)92

34n
Keys1 The master keys with remote control
determine the functions of the Key
Memory. Refer to page 58.
There is an extended-life battery
in every master key that is
charged automatically in the steering
lock as you drive.
For this reason, if you have a master
key that is otherwise not used, use that
key approximately once every year
while driving for an extended period to
charge the battery. Refer also to
page 37.<
2 Spare key for storage in a safe place
such as in your wallet. This key is not
intended for continuous use.463de023
3 Door and ignition key
The locks for the luggage compart-
ment lid/tailgate, rear backrest and
glove compartment cannot be oper-
ated with this key. This is useful for
valet parking, for instance.
Replacement keysReplacement keys are available exclu-
sively through your authorized BMW
center. Your BMW center is obligated 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
page 35).
If possible, take all of the master
keys that belong to the vehicle
with you when you pick up your re-
placement key.
Whenever you receive a new replace-
ment key, turn that key to position 2 in
the ignition lock once (ignition switched
on) and then back. This allows the elec-
tronic vehicle immobilizer to "learn" the
new key.<

35n
RepairsIndexOverview Controls Car care Technology Data
Electronic vehicle immobilizerThe key to security Your BMW is equipped with a passive
anti-theft system. This electronic immo-
bilization system is designed to reduce
the susceptibility of your vehicle to theft
by making it impossible to start the en-
gine using any means other than the
special keys furnished with the vehicle.
Your BMW center can cancel the elec-
tronic system authorization for individ-
ual keys (in the event of loss, for in-
stance). A deactivated key can no
longer be used to start the engine.463de042
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 dam-
age the integrated electronic cir-
cuitry. A damaged key can no longer be
used to start the engine.<

36n
Central locking system Opening and closing Ð from the outsideThe conceptThe central locking system is ready for
operation as soon as you close the front
doors. The system engages and re-
leases the locks on the
>doors
>luggage compartment lid/tailgate
and rear window
*
>fuel filler door.
The central locking system can be
operated
>from outside via the driver's door lock
as well as via the remote control
>from inside via the central locking
system buttons.
The fuel filler door remains unlocked
when you activate the system from in-
side the vehicle (refer to page 40). The
anti-theft system is automatically armed
whenever you activate the central lock-
ing system from outside the vehicle.
The alarm system is also activated or
deactivated.
If looked from inside, the central locking
system unlocks automatically (only
those doors which were not locked
separately with the safety lock buttons)
in the event of an accident. Refer to
page 40. In addition, the hazard warn-
ing flashers and interior lamps come on.
With the keyOne turn of the key in the driver's door
lock unlocks the driver's door only.
Turning the key a second time unlocks
all of the remaining doors, the luggage
compartment lid/tailgate and the fuel
filler door.
You can have an acknowledgment
message set to confirm that the
vehicle has been secured correctly (not
released at this time).<390de627
Convenience operationYou can also operate the windows and
sliding/tilt sunroof via the door lock.
>To open: With the door closed, turn
the key to the "Unlock" position and
hold it.
>To close: With the door closed, turn
the key to the "Lock" position and
hold it.
Watch the closing process care-
fully and be sure that no one is
trapped by the closing motion. The win-
dows/sunroof stop moving immediately
when you release the key.< Manual operation (in the event of an electrical failure)
Turn the key all the way to the left or
right to unlock/lock the door.

37n
RepairsIndexOverview Controls Car care Technology Data
Opening and closing Ð from the outsideWith the remote controlThe remote control makes opening and
locking the doors of your vehicle very
convenient. Furthermore, it provides
three additional functions which you
can only execute via the remote control:
>To switch on interior lamps:
With this function, you can also
"search for" your vehicle, when
parked in an underground garage, for
instance.
>To open the luggage compartment:
The luggage compartment lid/tail-
gate will open slightly, regardless of
whether it was previously locked or
unlocked.
>Panic Mode:
In case of danger, you can trigger an
alarm.
When the vehicle is unlocked, the anti-
theft system is simultaneously deacti-
vated, the alarm system is disarmed
and the interior lamps are switched on.
Locking the vehicle activates the anti-
theft and alarm systems and switches
the interior lamps off.
You can have an acknowledgment
message set to confirm that the
vehicle has been secured correctly (not
released at this time).<
Master keysKeys with a transmitter for remote con-
trol are master keys. Refer to page 34.
Since children might be able to
lock the doors from the inside,
take the vehicle's keys with you so that
the vehicle can be opened again from
the outside at any time.< 390us604
Master keys that are used repeat-
edly are always ready for opera-
tion since the battery in the key is
charged automatically in the steering
lock as you drive.
If it is no longer possible to unlock the
vehicle via the remote control, the bat-
tery is discharged. Use this key while
driving for an extended period in order
to charge the battery. Refer also to
page 34.
To prevent unauthorized use of the re-
mote control, surrender only the door
and ignition key 3 or the spare key 2
(refer to page 34) when leaving the ve-
hicle for valet parking, for example.
In the event of a system malfunction,
please contact your BMW center. You
can also obtain replacement keys
there.<

38n
Opening and closing Ð from the outside Unlocking and convenience
opening modeTo release: Press button 1.
Press the button once to unlock the
driver's door only; press a second time
to unlock all remaining doors as well as
the luggage compartment and fuel filler
door.
Convenience opening mode: Press and
hold button 1. The windows and the
sliding/tilt sunroof are opened.463de025
To lock and securePress button 2.463de027
Deactivate the tilt sensor alarm
system and interior motion sensorAfter locking the vehicle press button 2
again.
For additional information: Refer to
page 46.To switch on the interior lampsAfter locking the car, press button 2.380us646463de027