2001 BMW 540I SEDAN brake sensor

Contents

Operation, care and maintenance
Owner service procedures
Advanced technology

Under the hood:

Hood159
Engine compartment160
Washer fluids164
Washer nozzles164
Engine oil165
Coolant167
Brake fluid168
Vehicle Identification
Number169

Care and maintenance:

The BMW Maintenance
System170
Caring for your car171
Airbags176
Vehicle storage176

Laws and regulations:

Technical modifications177
California Proposition
65 Warning177
OBD interface socket178

Replacement procedures:

Onboard tool kit182
Wiper blades182
Lamps and bulbs183
Changing a wheel190
Battery193
Fuses196

In case of electrical
malfunction:

Fuel filler door198
Sliding/Tilt sunroof198
Tailgate199

Assistance, giving and
receiving:

Jump-starting200
Towing the vehicle201Airbags206
Adaptive Transmission Control
(ATC)207
Automatic Stability Control plus
Traction (ASC+T)/Dynamic
Stability Control (DSC)208
BMW active seat210
Safety belt tensioner210
DSP sound system211
Mirrors with automatic
dimmer211
Rain sensor212
Tire Pressure Control (RDC)213
Integrated rear suspension214
Level control system214
Xenon lamps215

Index
Data
Technology
Repairs
Car care
Controls
Overview
171nCaring for your car
Washing your car
You can have your new BMW washed
in an automatic car wash. Car wash
systems that do not employ brushes
are preferable.
Wipe away tough dirt and loosen and
remove dead insects before washing
the vehicle.
To prevent spots, avoid washing when
the hood is still warm, or immediately
after and during exposure to strong
sunlight.
When using an automatic car wash, be
sure that:
>The car wash system is suited for the
dimensions of your vehicle.
> No damage will occur on vehicles
with attached body accessories (such
as spoilers or antennas). If you are
uncertain, consult the manager of the
car wash.
> The wheels and tires of your vehicle
cannot be damaged by the convey-
ance devices of the car wash system.
> The vehicle is cleaned with minimum
brush pressure, and that ample water
is available for washing and rinsing. Vehicles with rain sensor
*:
Clean the windshield regularly. Wax
from automatic car washes or insects,
for example, can cause malfunctions in
the function of the rain sensor.
Turn the rain sensor off in auto-
matic car washes. If you do not,
damage may occur if the wipers switch
on unintentionally. <
Parts of the vehicle which are inacces-
sible to the automatic washer – such as
door sills, door and hood edges, etc. –
should be cleaned by hand.
In the winter months, it is especially im-
portant to ensure that the vehicle is
washed on a regular basis. Large quan-
tities of dirt and road salt are difficult to
remove, and they also cause damage to
the vehicle. If spray wands or high-pressure
washers are used, be sure to
maintain an adequate distance between
the spray source and the vehicle's sur-
face. Inadequate distance and exces-
sive pressure can damage or weaken
the finish, making it more susceptible to
subsequent attack. In addition, mois-
ture could penetrate to vehicle compo-
nents, leading to long-term damage. < When cleaning the headlamps,
please observe the following:
> Do not wipe dry (scratches). Never
use abrasives or strong
solvents to clean the covers
> Remove dirt and contamination (such
as insects) by soaking with BMW Car
Shampoo and then rinsing with plenty
of water
> Always use a deicer spray to remove
accumulated ice and snow – never
use an ice scraper. <
After washing the car, apply the
brakes briefly to dry them. Braking
efficiency might otherwise be reduced
by the moisture, and the brake rotors
could also be corroded. <

208nASC+T/DSC*
Precision sensors monitor the number
of revolutions of the wheels. When
equipped with DSC, they also monitor
steering angle, lateral acceleration,
brake pressure and the movement of
the vehicle around its vertical axis.
If differences in the wheel speeds
occur, the system counteracts the dan-
ger of wheelspin by reducing torque. If
necessary, the system also responds
with additional brake applications at the
rear wheels, and at all 4 wheels with
DSC.
In addition, DSC permanently monitors
the vehicle's current operating condi-
tion and compares it with an ideal con-
dition that is calculated from the sen-
sor's signals. If deviations from this
occur (understeering or oversteering,
for instance), DSC can stabilize the
vehicle in the fraction of a second by
reducing engine output and with the
assistance of braking intervention at in-
dividual wheels. As a result, dangerous
skids can be prevented even as they
are just beginning. You may need some time to become
accustomed to this system intervention.
However, it guarantees optimum drive
force and driving stability.
The braking intervention may be
accompanied by a certain degree of
noise.

Everything from A to Z

229n

IndexDataTechnologyRepairsCar careControlsOverview

Car jack190

t

Car keys36
Car Memory60
Car phones, refer to the
seperate Owner's Manual
Car radio reception149
Car telephone125
Car wash171
Care
vehicle exterior172
vehicle interior174
Cargo loading136
Caring for the vehicle
finish173
Catalytic converter142
Cellular phone149
Center (high-mount) brake
lamp, bulb
replacement187
Central locking
system38, 42
Changing a tire190

t

Changing a wheel190

t

Charge indicator lamp22
Charging the battery194

t

Check air pressure30
Check button86
Check Control86

t

Check engine oil
level165

t

Check tire pressures29

t

Child restraint systems62
Child seat62, 66Child seat security67
Child-safety locks67
Cigarette lighter126
Cleaning headlamps79
Cleaning windshield78, 79
Clock92
Clock, refer also to the
onboard monitor
Cockpit16
Code98
activating98
de-activating98
selecting98
Cold start69
Combination switch78
Comfort seat54
Compartments124
Computer89, 95
average fuel
consumption89
average speed89
cruising range89
outside temperature89
remote control99
Computer, refer also to the
onboard monitor Owner's
Manual
Configure settings60
Consumption display84
Consumption, fuel97
Contamination on
paintwork172Convenience operation
sliding/tilt sunroof38
windows38
Convenience starting
feature69
Coolant146, 167
antifreeze146
temperature gauge85
Copyright notice4
Courtesy lamp, bulb
replacement189

t

Cover, sun blinds120
Cruise control81
Cruising range89, 97
Cup holder125
Curb weight221

D
Dashboard16
Data link connector for
Onboard Diagnostics178
Date
calling up92
changing92
Date, refer also to the
onboard monitor Owner's
Manual
Daytime-driving lamp105
DBC (Dynamic Brake
Control)23, 100, 145Deactivating99
interior motion
sensor40, 48
tilt sensor alarm
system40, 48
Deep water141
Defrost
rear window80

t

Defrost position113, 117
Defrost
windows113, 117

t

Difficult steering148

t

Digital clock92
Digital sound
processing211
Dimensions219
Dipstick, engine oil165

t

Disc brakes144
Disconnect the
battery195

t

Displacement218
Display lighting105
Displays18, 20
Distance96
Distance warning100
Diversity Antenna
system209
Divided rear-seat
backrest128
Door keys36

Everything from A to Z

231n

IndexDataTechnologyRepairsCar careControlsOverview

Height219
Height adjustment
seats52
steering wheel56
Help with jump
starting200

t

HiFi system211
High beams24
bulb replacement183

t

High Performance Synthetic
Oils166
High-mount brake lamp187
Hood release159

t

Horn25
Hydraulic Brake Assistant,
refer to DBC23, 100, 145

I
Ice warning83
Identification number of the
vehicle169
Identification, tires153
Ignition key36
Ignition lock68
Imprint4
Independent
ventilation94, 120
Independent ventilation,
refer also to the onboard
monitor Owner's Manual
Indicator lamps22

t

Inflation
pressure29

t

, 30, 150
monitoring103, 213
INSPECTION85
Instrument cluster18, 20
Instrument lighting105
Instrument panel20
Instrument panel switch78
Instruments18
Integrated rear
suspension214
Intensive
cleaning78, 79, 164
Interaxle tire rotation152
Interference indicators86
Interference with
car phones149
Interior lamps106
bulb replacement188

t

remote control40
Interior mirror57
with automatic dimming
feature211
Interior motion sensor48
deactivation48
Interior rearview mirror
with automatic dimming
feature57
Interlock68
Intermittent mode78

J
Jack190

t

Jump starting200

t
KKey Memory60
Key, transmitter36
Keys36
Keys with remote control36
Kickdown73, 76LLashing eye136
Leather care175
Length219
Level control
system23, 214
inactive148t
License plate lamps, bulb
replacement188t
Light switch105
Light-alloy wheels156
Lighter126
Lights-on warning105
LIMIT95
Load-securing devices136
Locking and unlocking the
doors38
Louvers108, 114
Low beams105
bulb replacement183tLow-fuel warning lamp84
Lug bolts191
Lug wrench191t
Luggage compartment46
capacity221
hanger46
lamps106
Luggage compartment
lamps, bulb
replacement189t
Luggage compartment lid/
tailgate43
emergency actuation43
opening separately43
remote control41
secure separately43
unlock in case of electrical
fault43t
Luggage space46
Luggage straps46
Lumbar support54
MM+S tires154
Magic Eye194
Maintenance85t, 170t
Malfunction displays86t

Everything from A to ZManual operation
doors38t
fuel filler door198t
luggage compartment lid/
tailgate43, 199
sliding/tilt sunroof198t
tailgate199t
Manual transmission70
Manually controlled
recirculated-air117
Master key36
Mechanical seat53
Memo93
Memory58
MFL (Multifunction steering
wheel)25
Microfilter112, 119
MID (Multi-Information
Display)91
computer95
digital clock92
Mirror56
heating57
memory58
Mirrors with automatic
dimming feature211
Mobile communication
systems, refer to the
separate Owner's Manual
Mobile phones149
Modifications,
technical6, 177
Moonroof51Multifunction steering wheel
(MFL)25
Multi-Information Display
(MID)91
NNeck rest53
Nonsmoker equipment126
Nozzles114OOBD connector178
OBD interface socket178
Odometer83
Oil
additives165
consumption165
grades166
Oil change interval, refer to
the Service and Warranty
Information Booklet (US
models) or to the Warranty
and Service Guide Booklet
(Canadian models)
Oil dipstick165
Oil level, indicator lamp23
Oil pressure, indicator
lamp23
Oil specifications166t
OILSERVICE85
Old batteries195Onboard computer, refer
also to computer
Onboard monitor, refer also
to the separate Owner's
Manual
Onboard tool kit182t
Opening and closing
from the inside42
from the outside38
Operating range89
Outlets, ventilation108, 114
Outside temperature89
display83
PPaint
blemishes172
care172
minor repairs173
waxing173
Paintwork, refer to paint
Park Distance Control
(PDC)100
Parking184
Parking brake23, 70
Parking help100
Parking lamp, bulb
replacement184t
Parking lamps106
Parking, winter148PDC (Park Distance
Control)100
Playing cassettes, refer to
the Radio Owner's Manual
Playing CDs, refer to the
Radio Owner's Manual
Pocket light124
Pollen112
Pollen filter119
Power51
Power steering148
Power windows49
safety switch50
Power-slip control, refer to
ASC+T/DSC102
Pressure, tire30, 150
monitoring103, 213
Pressure, tires29t, 150t
RRadio149
refer also to the separate
Owner's Manual
Radio reception149, 209
Rain sensor78, 171, 212
RDC (Tire Pressure
Control)103, 213
Reading lamps107
Rear window blind120
Rear window
defroster80, 110, 118
Rear window wiper80

Everything from A to Zroll-up cover132
securing a load136
ski bag131
tail lamp assembly, bulb
replacement186t
tailgate, manual release
after electrical fault198t
Sports seat55
Sports steering wheel26
Start the engine69
Starting69
Starting assistance200t
Starting help200
Starting off147
Starting problems
69, 142t, 200t
Starting the engine68t
Steel wheel158
Steering148
Steering wheel
adjustment56
heating120
lock68
memory58
Steptronic75
Stopwatch93
Storage124
Summer tires153
Sun blind cover120
Sun visors57Sunroof50
with glass moonroof51
Switching off the engine69
Switch-on times
input94
Symbols4
TTachometer84
Tail lamp assembly, bulb
replacement186t
Tail lamps186
Tailgate199
convenience opening
mode40
manual release after
electrical fault199
refer also to luggage
compartment
release after an electrical
defect199t
Tank capacity223
Technical
modifications6, 177
Telephone hookup125
Temperature display, engine
coolant85
Temperature display,
outside temperature83
Temperature gauge85
Temperature
layering111, 119Tensioning straps46
Thigh support
adjustment55
Third brake lamp, bulb
replacement187t
Through-loading
system128
Tilt alarm40
Tilt alarm sensor48
deactivation48
Tilt function
passenger side exterior
mirror59
steering wheel56
Time
calling up92
changing92
of arrival, estimated97
Tire
change190
code153
damage150
inflation pressure30, 150
monitoring inflation
pressure103, 213
renewal151
rotation between
axles151
tread150
valve caps154
wear indicator150Tire Pressure Control
(RDC)103, 213
Tire, changing190t
Tools182t
Torque218
Tow fittings201t
Towing201t
Tow-starting201t
Track width219
Traction control system,
refer to ASC+T/DSC
Transmission70, 75
Transmitter key36
Transporting children
safely66
Tread depth indicators150
Tread depth, tires150
Tread wear indicator150
Trip odometer83
Trunk, refer to luggage
compartment
Turn signal indicator78
bulb replace-
ment184t, 186t
Turning circle219
UUniform Tire Quality Grading
(UTQR)152
Universal Transmitter121
Use antifreeze167t