2000 BMW 540I SEDAN heating

11n

Controls and features
Operation, care and maintenance

Lamps:

Parking lamps/Low beams94
Instrument lighting94
High beams/Parking lamps95
Fog lamps95
Interior lamps96
Reading lamps96

Controlling the climate
for pleasant driving:

Automatic climate control98
Seat heating 103
Steering wheel heating 103
Roller sun blind 104
Independent ventilation
system 104

Cabin convenience:

BMW Universal Transmitter 105
Glove compartment108
Storage facilities108
Cellular phone 109
Beverage holder 109
Ashtray, front110
Cigarette lighter 110
Ashtray, rear111

Loading and transporting cargo:

Through-loading system 112
Ski bag 113
sport wagon:
Luggage compartment 116
Roll-up cover 116
Separation net 116
Storage areas in the luggage
compartment 118
Cargo loading120
Roof-mounted luggage rack121

Special operating instructions:

Break-in procedure124
Driving notes125
Catalytic converter126
Antilock Brake System
(ABS)127
Disc brakes128
Brake system130
Winter operation130
Power steering132
Level control system 132
Cellular phone 133
Radio reception133

Wheels and tires:

Tire inflation pressure134
Tire condition134
Tire replacement135
Tire rotation136
Wheel and tire
combinations137
Winter tires138
Snow chains 139
Approved wheel and tire
specifications 140

22n

Indicator and warning lampsTechnology that monitors itselfMany of the systems of your BMW mon-
itor themselves automatically, both dur-
ing engine starts and while you are driv-
ing. Indicator and warning lamps that
are identified by "l" are tested for
proper functioning whenever the igni-
tion key is turned. They each light up
once for different periods of time.
If a fault should occur in one of these
systems, the corresponding lamp does
not go out after the engine is started or
it lights up while the vehicle is moving.
You will see how to react to this below.
Red: Stop immediately
Battery charge current l
The battery is no longer being
charged. There is a malfunction
of the alternator V-belt or in the charg-
ing circuit of the alternator. Please con-
tact the nearest BMW center.
If the ribbed V-belt is defective, do
not continue driving. The engine
could be damaged due to overheating.
If the ribbed V-belt is defective, in-
creased steering effort is also re-
quired.<
Engine oil pressure l
Comes on while the engine is
running and the "STOP! ENGINE
OILPRESS" message appears in the
Check Control: Stop vehicle and switch
off engine immediately. Check level of
oil in engine, top up as required. If oil
level is correct: Please contact the
nearest BMW center.
Do not continue driving. The en-
gine could be damaged because
of inadequate lubrication.<
Tire Pressure Control (RDC)
* l
In addition, there is an acousti-
cal warning signal: A tire failure
has occurred. Reduce vehicle speed
immediately and stop the vehicle. Avoid
hard brake applications. Do not over-
steer. For additional information: Refer
to page 92.
Parking brake
*, brake hydraulic
system l
Comes on when you engage the
parking brake. For additional informa-
tion: Refer to page 69.
Comes on although the parking brake is
released: Have the brake fluid level
checked. Before driving further, be
sure to read the notes on pages 130
and 152.
Also comes on with the message
"CHECK BRAKE PADS" in the Check
Control.
Parking brake warning lamp
*/
Brake hydraulic system for
Canadian models.

25n
RepairsIndexOverview Controls Car care Technology Data
Multifunction steering wheel (MFL)There are two design versions, depend-
ing on the equipment installed in your
vehicle.
The controls integrated in the multi-
function steering wheel (MFL) are pro-
vided so that you can operate a number
of accessories quickly and without be-
ing distracted from traffic conditions.
You may operate:
>Selected functions of the radio, the
CD and cassette modes
>The recirculated air mode of the air
conditioner or
>the steering wheel heater
>The cruise control and
>selected cellular phone functions.
In order to operate a system via
the MFL, the corresponding
system controls must be switched on.<
The illustration shows the maximum
possible number of controls, corre-
sponding to a full range of optional
equipment. Refer to the individual
accessory manuals for more detailed
descriptions.
1 Cellular phone: Receive a call, initiate
dialing and terminate a call
2 Radio/Telephone: Select
3 Radio/Telephone: Scan backward or
scan station keys or scroll in the
phone listings.
Fast forward and reverse for CD and
cassette modes
4 Radio/Telephone: Volume
5 Radio/Telephone: Forward scan or
scan station keys or scroll in the
phone listings.
Fast forward and reverse for CD and
cassette modes380de702
6 Horn: The entire surface
7 Cruise control: Activate stored
setting (resume)
8 Cruise control: Store and
accelerate (+); decelerate and
store (Ð)
9 Cruise control: Activate/Interrupt/
Deactivate
10 Recirculated-air mode and AUC or
steering wheel heating: Switch on
and off

Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
33n
RepairsIndexOverview Controls Car care Technology Data
Lamps:
Parking lamps/Low beams94
Instrument lighting94
High beams/Parking lamps95
Fog lamps95
Interior lamps96
Reading lamps96
Controlling the climate for
pleasant driving:
Automatic climate control98
Seat heating103
Steering wheel heating103
Roller sun blind104
Independent ventilation
system104
Cabin convenience:
BMW Universal Transmitter105
Glove compartment108
Storage facilities108
Cellular phone109
Beverage holder 109
Ashtray, front110
Cigarette lighter110
Ashtray, rear111Loading and transporting cargo:
Through-loading system112
Ski bag113
sport wagon:
Luggage compartment116
Roll-up cover116
Separation net116
Storage areas in the luggage
compartment118
Cargo loading120
Roof-mounted luggage rack121

42n
Luggage compartment lid/TailgateOpening from inside the carProvided the luggage compartment lid/
tailgate has not been locked separately,
you can use this button to open it when
the vehicle is stationary.390de324
Rear window Ð sport wagonSmall items can be loaded or unloaded
quickly if the rear window is opened
separately.
Press the button (arrow): The rear win-
dow opens slightly. It can now be tilted
up.
Push the window down to close it.
If pointed or sharp-edged objects
could strike the rear window while
driving, be sure to provide protection
around all edges. If you do not do this,
the heating conductors of the rear win-
dow could be damaged.< 392de159
Closing Ð sedanThe handle recess (arrow) next to the
lock mechanism is designed to assist
you in closing the luggage compart-
ment lid.394de128

101n
RepairsIndexOverview Controls Car care Technology Data
Automatic climate controlAir supply
In the "AUTO" program, the air
flow is controlled automati-
cally. AUTO will appear in the display
(refer to the overview on page 98). Use
"+" and "-" to vary the air flow. When
your setting is displayed by bars, the
automatic air flow is switched off. Auto-
matic air distribution maintains its set-
ting. You can reactivate the automatic
air flow by pressing the "AUTO" button.
When you press "Ð " during operation at
minimum blower speed all displays are
canceled: The fan, heating and air con-
ditioner are switched off. The outside
air supply is closed. By pressing any
button of the automatic climate control
(except the "REST" button 16), you can
switch the system back on.
To defrost windshield and door
windows
This program quickly removes
ice and condensation from the
windshield and the side windows.
Air conditioner
The air is cooled and dehu-
midified and Ð depending on
the temperature setting Ð warmed again
when the air conditioner system is
switched on. Depending on the
weather, the windshield may fog over
briefly when the engine is started.
Use the button to switch off the air con-
ditioner at outside temperatures below
approx. +417 (+56). This will help to
prevent the windows from fogging up.
If the windows fog over after switching
the air conditioner off, switch it back on.
Condensation forms in the air con-
ditioner system during operation,
which then exits under the vehicle.
Traces of condensed water of this kind
are thus normal.<
Automatic recirculated-air
control (AUC)
You can respond to unpleas-
ant external odors by tempo-
rarily stopping the flow of outside air.
The system then recirculates the air
currently within the vehicle. Press the
button repeatedly to run through the
following control sequence:
>Indicator lamps off: Outside air flow
operational.
>Left-hand indicator lamp on Ð AUC
mode: The system recognizes pollut-
ants in the outside air and blocks the
flow of air when necessary. The sys-
tem then recirculates the air currently
within the vehicle.
Depending on the air quality, the au-
tomatic system then switches back
and forth between outside air supply
and recirculation of the air within the
vehicle.
>Right-hand indicator lamp on: The
flow of external air into the vehicle is
permanently blocked. The system
then recirculates the air currently
within the vehicle.
If you have a multifunction steering
wheel with the recirculated-air button
(refer to page 25), you can also use it to
switch between "Off" and the recircu-
lated-air mode or AUC and the recircu-
lated-air mode.

102n
Automatic climate control
If the windows should fog over in
the recirculated air mode, switch
the recirculated air mode off and in-
crease the air supply as required.<
Rear window defroster
When the rear window de-
froster is activated, the indica-
tor lamp comes on. The rear window
defroster switches off automatically.
Residual heat mode
The heat which is stored in
the engine is utilized for
heating the interior when the engine has
been switched off (while waiting at a
railroad crossing, for instance). In igni-
tion key position 1, you can alter the
settings of the automatic climate con-
trol. In ignition key position 0, the sys-
tem automatically directs heated air to
the windshield, side windows and foot-
wells.
This function may be activated
when the outside temperature is
below approx. 597 (156), the engine
is at operating temperature, and the
battery is adequately charged.<
Draft-free ventilationYou can adjust the blower controls for
the upper body area to select the opti-
mum airflow rates and directions for
your personal requirements:
Use rotary dial 1 to open and close the
airflow through an infinitely-variable
range. You can also use the levers 2 to
change the direction of the airflow.
Set the outlets so that the air flows past
you and does not flow directly on you.
Rotary dial 3 allows you to temper the
air flow from these outlets by adding
heat or cooling as desired:
Turn toward blue Ð colder
Turn toward red Ð warmer390de051
Rear passenger area ventilationRotary dial 1 opens the outlets in an in-
finitely-variable range. You can vary the
temperature of the air as it flows out us-
ing rotary dial 3 in the same manner as
for the front rotary dial.
You can change the direction of the air
flow with levers 2.390de354

103n
RepairsIndexOverview Controls Car care Technology Data
Automatic climate control Seat heating
*
Steering wheel heating
*
Microfilter, activated-charcoal
filterThe microfilter removes dust and pollen
from the incoming air. The activated-
charcoal filter provides additional
protection by filtering gaseous pollut-
ants from the outside air. Your BMW
center replaces this combined filter as a
standard part of your scheduled main-
tenance. A substantial reduction in air
flow indicates that the filter must be
replaced before scheduled mainte-
nance.The seat cushion and backrest can
be heated with the ignition key in posi-
tion 2.
You can call up different heating modes
by repeatedly pressing the keys.
The highest heating mode is on when
the three indicator lamps are lit; one
lamp is lit for lowest heating. Tempera-
ture regulation in each mode is with a
thermostat.
You can also switch the higher heating
modes off directly:
Press the key and hold it slightly longer.
390de356
To activate and cancel the steering
wheel heater, press the button (arrow)
with the ignition key in position 2.
The lamp within the button lights up
when the steering wheel heater is in op-
eration.
If you have a multifunction steering
wheel without steering wheel heating,
the button for the recirculated-air mode
is in this location (refer to page 25).390de630