2000 BMW 540I SEDAN immobilizer

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.<