ECU BMW 540I SEDAN 2001 Owners Manual

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 vehicle 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:
– New Vehicle Limited Warranty
– Limited Warranty Rust Perforation
– Federal Emissions System Defect Warranty
– Federal Emissions Performance Warranty
– 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
Sports steering wheel26
Hazard warning flashers27
Warning triangle 27
First-aid kit 27
Refueling28
Fuel specifications29
Tire inflation pressure29

Locks and security systems:

Keys36
Electronic vehicle
immobilizer37
Opening and closing –
from the outside38
With the key38
With the remote control39
Opening and closing –
from the inside42
Luggage compartment lid/
Tailgate43
Rear window43
Luggage compartment46
Alarm system47
Electric power windows49
Sliding/Tilt sunroof50

Adjustments:

Seats52
Steering wheel56
Mirrors56
Seat, mirror and steering wheel
memory58
Car Memory, Key Memory60

Passenger safety systems:

Safety belts61
Airbags62
Transporting children safely66

Driving:

Steering/Ignition lock68
Starting the engine68
Switching off the engine69
Parking brake70
Manual transmission70
Automatic transmission72
Automatic transmission with
Steptronic75
Indicator/Headlamp flasher78
Wiper/Washer system78
Rear window defroster80
Cruise control81

Everything under control:

Odometer, outside temperature
display83
Tachometer84
Energy control84
Fuel gauge84
Coolant temperature gauge85
Service Interval Display85
Check Control86
Computer89
Multi-information display
(MID)91
Digital clock in the MID92
Computer in the MID95

34n
Locks and security systems:
Keys 36
Electronic vehicle immobilizer 37
Central locking system 38
Opening and closing –
from the outside 38
With the key 38
With the remote control 38
Opening and closing – from the inside 42
Luggage compartment lid/ Tailgate 43
Rear window 44
Luggage compartment 46
Alarm system 47
Electric power windows 49
Sliding/Tilt sunroof 50
Adjustments:
Seats 52
Steering wheel 56
Mirrors 56
Seat, mirror and steering wheel memory 58
Car Memory, Key Memory 60
Passenger safety systems:
Safety belts 61
Airbags 62
Transporting children safely 66Driving:
Steering/Ignition lock
68
Starting the engine 68
Switching off the engine 69
Parking brake 70
Manual transmission 70
Automatic transmission 72
Automatic transmission with Steptronic 75
Indicator/Headlamp flasher 78
Wiper/Washer system 78
Rear window defroster 80
Cruise control 81
Everything under control:
Odometer, outside temperature display 83
Tachometer 84
Energy control 84
Fuel gauge 84
Coolant temperature gauge 85
Service Interval Display 85
Check Control 86
Computer 89
Multi-information display (MID) 91
Digital clock in the MID 92
Computer in the MID 95

36nKeys
1 The master keys with remote control
determine the functions of the Key
Memory. Refer to page 60.
There is an extended-life battery
in every master key that is
charged automatically in the ignition
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 39.<
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 keyThe 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 keys
Replacement 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 37).
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. <

IndexDataTechnologyRepairsCar careControlsOverview
37n
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.<

IndexDataTechnologyRepairsCar careControlsOverview
39n
Opening and closing – 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, refer to
page 40
With this function, you can also
"search for" your vehicle, when
parked in an underground garage, for
instance.
>To open the luggage compartment/
tailgate, refer to page 41
The luggage compartment lid/tailgate
will open slightly, regardless of
whether it was previously locked or
unlocked.
>Panic mode
In case of danger, you can trigger the
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 a signal set as an
acknowledgment message that
the vehicle is closed correctly.<
Master keysKeys with a transmitter for remote
control are master keys. Refer to
page 36.
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 ignition
lock as you drive.
If it is no longer possible to unlock the
vehicle via the remote control, the
battery is discharged. Use this key
while driving for an extended period in
order to charge the battery. Refer also
to page 36.
To prevent unauthorized use of the
remote control, surrender only the door
and ignition key 3 or the spare key 2
(refer to page 36) 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.<

40n
Opening and closing – from the outsideUnlocking 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/tailgate 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 alarm system tilt
sensor and interior motion sensorAfter locking the vehicle press button 2
again.
For additional information: refer to
page 48.To switch on the interior lampsWith the vehicle locked, press button 2.380us646463de027

IndexDataTechnologyRepairsCar careControlsOverview
43n
Luggage compartment lid/TailgateLock – sedan onlyOnly the master keys (refer to page 36)
fit in the lock of the luggage compart-
ment lid.Opening separatelyTurn the master key to the left in the
luggage compartment lock clear to the
stop – the luggage compartment lid will
open slightly.
The luggage compartment is locked
again as soon as you close the lid.394de624
Secure separatelyTurn the master key to the right past the
resistance point and then pull it out in
the horizontal position.
This locks the luggage compartment lid
and disconnects it from the central
locking system. This feature can be
used to prevent unauthorized access to
the luggage compartment when you
hand over the door and ignition key
(refer to page 36) for valet parking, for
instance.394de064
To open from the outsidePress the button (arrow): the luggage
compartment lid/tailgate opens slightly.Manual operation(in the event of an electrical malfunc-
tion)
sedan:
Turn the master key to the left in the
luggage compartment lock clear to the
stop – the luggage compartment lid will
open slightly.
The luggage compartment is locked
again as soon as you close the lid.
sport wagon:
Refer to page 199.394de009

46n
Luggage compartmentLuggage strapsUse the straps on the floor of the
luggage compartment to secure smaller
items of luggage.
Movement is reduced, when objects
are placed on the straps.
The fittings at the corners of the
luggage compartment provide you
with a convenient means of attaching
luggage nets
* and flexible straps for
securing suitcases and luggage.
Refer also to "Cargo loading" on
page 136.
394de302
HangerOn the left-hand side of the luggage
compartment is a hanger for fastening
shopping bags, packages or similar
items.394de144

IndexDataTechnologyRepairsCar careControlsOverview
53n
Mechanical seat1 Forward/backward adjustment
Pull the lever and slide the seat to the
desired position.
After releasing the lever, apply pres-
sure to the cushion to ensure that the
latch engages securely
2 Cushion height
Pull the lever and apply weight to
or remove weight from the seat as
required390de682
3 Backrest angle
Pull the lever and apply weight to or
remove weight from the backrest to
reach the desired position
Comply with the adjustment in-
structions on page 52. Failure to
do so could result in diminished perso-
nal safety.< 390de683
Head restraintsTo adjust the angle of the front head
restraints: adjust by tilting the head
restraint.
To adjust the height of the front pas-
senger and rear head restraints: adjust
by pulling up or pressing down.
Head restraints reduce the risk
of spinal injury in the event of an
accident.
Adjust the head restraint so that its
center is approximately level with your
ears.
Leave the center rear head restraint in
the fully-lowered position at all times,
since pulling it out limits its function.<390de065