2002 BMW 540I SEDAN brakes

79n
OverviewControlsMaintenanceRepairsDataIndex
Cruise controlTo store and maintain speed
or to acceleratePress button (+) briefly:
The system registers and maintains the
current vehicle speed. Every time you
tap the button, the speed increases by
approx. 0.6 mph (1 km/h).
Press and hold button (+):
The vehicle accelerates without pres-
sure on the accelerator pedal. When
you release the button, the system
stores and maintains the current speed.
If, on a downhill gradient, the
engine braking effect is not suffi-
cient, the controlled speed can be
exceeded. Speed can drop on uphill
grades if the engine output is insuffi-
cient.<
To deceleratePress button (Ð) briefly:
If you are already driving with active
cruise control, the speed is decreased
by approx. 0.6 mph (1 km/h) every time
you tap the button.
Press and hold button (Ð):
With the cruise control active, the
system automatically reduces the
throttle opening to slow the vehicle.
When you release the button, the
system registers and maintains the
current speed.
To interrupt the cruise control When the system is activated, press the
button. The indicator lamp stays on.
You can use the cruise control again
whenever you want by calling up the
speed that was stored last.
In addition, cruise control is interrupted
automatically:
>When the brakes are applied
>When you depress the clutch pedal
>If you exceed or fall below the
programmed speed for an extended
period (by depressing the acceler-
ator, for example). To recall the stored settingPress button:
The vehicle accelerates to and main-
tains the last speed stored.

131n
OverviewControlsMaintenanceRepairsDataIndex
Driving notes Antilock Brake System
Brakes:
Do not drive with your foot resting
on the brake pedal. Even light but
consistent pedal pressure can lead to
high temperatures, brake wear and
possibly even brake failure.
Aquaplaning:
When driving on wet or slushy roads,
reduce vehicle speed. If you do not, a
wedge of water may form between the
tires and the road surface. This
phenomenon is referred to as aqua-
planing or hydroplaning. It is character-
ized by a partial or complete loss of
contact between the tires and the road
surface. The ultimate results are loss of
steering and braking control.
Driving through water:
When there is water on the roads, do
not drive in it if it is deeper than
1 ft (30 cm), and even then, only at
walking speed, otherwise the vehicle
can sustain damage to the engine, the
electrical systems and the transmission.
Rear parcel tray:
Do not place heavy or hard objects on
the cargo area cover. These objects
could endanger vehicle occupants
during heavy brake applications or
evasive maneuvers.
Clothes hooks:
Hang items of clothing from the hooks
so that they will not obstruct the driver's
vision. Do not hang heavy objects on
the hooks. If you do so, they could
cause personal injury during braking or
evasive maneuvers.<
The conceptThe Antilock Brake System (ABS) keeps
the wheels from locking during braking,
thereby enhancing active driving safety.Braking with ABSIf you are in a situation that requires full
braking, you will exploit the full benefits
of the ABS system if you apply
maximum pedal pressure ("panic stop").
Since the vehicle maintains steering
responsiveness, you can avoid possible
obstacles with a minimum of steering
effort, despite the full brake application.
Pulsation at the brake pedal combined
with sounds from the hydraulic circuits
indicates to the driver that ABS is in its
active mode.

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Brake systemBrake fluid level If the brake fluid level is too low and
brake pedal travel has become notice-
ably longer, there may be a defect in
one of the brake system's hydraulic
circuits.
Proceed to the nearest BMW
center. Higher brake application
pressure may be necessary under these
conditions, and the vehicle may exhibit
a slight tendency to pull to one side
when the brakes are applied. Braking
distances may also be longer. Please
remember to adapt your driving style
accordingly.<
Disc brakesLimited vehicle use, extended periods
with the vehicle parked or in storage,
and operating conditions in which
braking is restricted to gentle, low-
pressure applications will all increase
the tendency for corrosion to form on
the rotors; this is often accompanied by
a simultaneous accumulation of
contamination on the brake pads. The
pads must exert a certain minimal level
of pressure against the rotors for the
disc brakes' inherent self-cleaning
effect to remain effective; the pressure
available under the above conditions
may not provide adequate cleansing.
If the brake rotors are corroded, they
will tend to respond to braking with a
pulsating effect that even extended
brake applications will fail to cure.
When driving in heavy rain and on wet
roads it is a good idea to apply light
pressure to the brake pedal every few
miles. Monitor traffic conditions to
ensure that this maneuver does not
pose a hazard to you or to other road
users. The heat generated in this
process helps dry the pads and rotors
to ensure that your brake system will
respond with undiminished efficiency
when you need it.When descending steep hills and
extended grades, downshift to a gear
that will allow you to continue safely
with only a minimal amount of braking.
By minimizing the loads placed on the
brake system, this strategy helps
ensure that optimal brake system
response will remain available at all
times.
Do not coast with the clutch
depressed or with the transmission
or selector lever in Neutral. Do not coast
with the engine shut off. The engine
provides no braking effect when the
clutch is depressed and there is no
power-assist for braking or steering
when the engine is not running.
Never allow floor mats, carpets or any
other objects to protrude into the area
around the accelerator, clutch and brake
pedals and obstruct their movement.<
Brake pads
For your own safety: use only
brake pads that BMW has
approved for your particular vehicle
model. BMW cannot evaluate non-
approved brake pads to determine if
they are suited for use, and therefore
cannot ensure the operating safety of
the vehicle if they are installed.<

164n
Towing the vehicle
The towed vehicle should always
be the lighter of the two vehicles.
If this is not the case, it is no longer
possible to control vehicle response.<
Tow-startingIt is not possible to start the engine of
vehicles equipped with an automatic
transmission by towing or pushing.
For instructions on jump-starting: refer
to page 162.
Never attempt to use your vehicle to
push another vehicle, since damage to
the energy-absorbing bumpers could
result.
Towing a vehicle with automatic
transmission1. Place the selector lever in position N
2. Towing speed:
Max. 45 mph (70 km/h)
3. Towing distance:
Max. 95 miles (150 km)
4. Leave the ignition key in position 1 to
ensure that the brake lamps, turn
signals, horn and windshield wipers
remain operative, and to prevent the
steering lock detent from engaging
5. Switch on the hazard warning
flashers (observe official regulations).
Find some means of identifying the
vehicle in tow, for instance, place a sign
or warning triangle in the rear window.
Make sure that the ignition key
remains in position 1 even when
the electrical system has failed to
prevent the steering lock from
engaging. The steering and brakes are
without power-assist when the engine
is off. This means that increased effort
is required for steering and braking.<
Towing with a commercial
tow truck>Do not tow with sling-type equipment
>Use a wheel-lift or flatbed carrier
>Please comply with applicable towing
laws.
Never allow passengers to ride in
a towed vehicle for any reason.< 380us124

Everything from A to Z
177n
OverviewControlsMaintenanceRepairsDataIndex
Brake system132
brake fluid level132
brake pads20, 132
disc brakes132
malfunctions132
Break-in procedures130
Bulbs and lamps151t C
California Proposition
65 Warning145
Capacities173
Car care, refer to the "Caring
for your vehicle" manual
Car wash systems, refer to
the "Caring for your
vehicle" manual
Care of paintwork, refer to
the "Caring for your
vehicle" manual
Care of upholstery materials,
refer to the "Caring for your
vehicle" manual
Cargo area
lamps103
opening from the
inside40
Cargo loading126
Cellular phone117 Center (high-mount) brake
lamp155
Central locking
system32, 37
Changing a wheel/
tire157t
Charge indicator lamp19
CHECK button83
Check Control83t
Check engine oil
level140t
Child seat safety62
Child seats61
Child-restraint systems61
Child-safety locks64
Cigarette lighter118
Clean rear window77
Cleaning windshield77
Climate control, refer to
Automatic climate
control107
Clock88
for additional information
refer to the "Owner's
Manual for Onboard
Computer"
Cockpit14
Code, refer to immoblizer
function94
Cold start67
Combination switch76 Comfort seat51
Compartments116
Computer86
for additional information
refer to the "Owner's
Manual for Onboard
Computer"
remote control95
Computer in the MID91
Configuring personal
adjustments, Vehicle and
Key Memory64
Consumption display81
Consumption, fuel86, 93
Convenience operation of
windows and sliding/tilt
sunroof33
Convenience starting
feature67
Coolant142
Coolant temperature
gauge82
Copyright4
Cover, sun blinds112
Cruising range86, 93
Cup holder117
Cup holder, refer to
beverage holder117
Curb monitor55
D
Data link connector for
Onboard Diagnostics146
Date
calling up88
changing88
Daytime driving lamps101
DBC (Dynamic Brake
Control)20
Deactivating95
alarm system tilt
sensor43
interior motion sensor43
Deep water131
Defrost windows106, 109
Defroster mode106, 109
Digital clock in the MID88
Dimensions169
Dipstick, engine oil140t
Displacement168
Display lighting102
Displays16, 17
Disposal
antifreeze with corrosion
inhibitor142t
used batteries160t
used oils141t