brakes BMW 325CI CONVERTIBLE 2004 E46 Owner's Manual

85
The speed stored in memory is deleted.To store and maintain speed or to
acceleratePress button + briefly:
The system maintains and stores 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
maintains and stores 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 – briefly:
If you are already driving with activated
cruise control, the speed is decreased
by approx. 0.6 mph / 1 km/h every time
you tap the button.
Press and hold button –:
With the cruise control active, the sys-
tem automatically reduces the throttle
opening to slow the vehicle. When you
release the button, the system main-
tains and stores the current speed.To interrupt the cruise controlWhen 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 apply pressure to the
clutch pedal, or when you move the
automatic transmission selector lever
from D to N
>If you exceed or fall below the pro-
grammed speed for an extended
period – by depressing the accelera-
tor, for example.To recall the stored settingPress the button:
The vehicle accelerates to and main-
tains the last speed stored.
Cruise control*
OverviewControlsMaintenanceRepairsDataIndex

125
General driving notes
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.
Hydroplaning: 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 can lead to partial or
complete loss of contact between the
tires and road surface, as well as loss of
vehicle control and braking ability.
Driving through water: do not drive
through water on the road if it is deeper
than 1 ft/30 cm, and then only at walk-
ing speed. Otherwise, the vehicle's
engine, the electrical systems and the
transmission may be damaged.
Clothes hooks, with hardtop: when
hanging clothing from the hooks, be
sure 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.<
Antilock Brake System (ABS)The conceptABS 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 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.Dynamic Brake Control (DBC)DBC is included in the DSC, refer to
page 93. The system responds to sud-
den, high-intensity applications of force
to the brake pedal by automatically
braking the vehicle with maximum
boost to achieve the shortest possible
braking distances during panic stops.
This system also exploits the benefits of
ABS. Do not reduce the pressure exerted against the brake pedal until
the braking maneuver has been com-
pleted. DBC is deactivated when you
release the brake pedal.
Cornering Brake Control (CBC)CBC is an advanced engineering devel-
opment of ABS. When braking during
cornering with high lateral accelera-
tion, or when braking during a lane
change, vehicle stability is improved
and the steering response is enhanced.
OverviewControlsMaintenanceRepairsDataIndex

126
Brake systemBrake fluid levelIf the brake fluid level is too low and
brake pedal travel has become longer,
there may be a defect in one of the
brake system's hydraulic circuits.
Proceed to the nearest autho-
rized BMW center. It may be nec-
essary to apply higher levels of pres-
sure to the pedal when stopping and
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 brak-
ing is restricted to gentle, low-pressure
applications will all increase the ten-
dency for corrosion to form on the
rotors; this is often accompanied by a
simultaneous accumulation of contami-
nation 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.
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 useful 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 undi-
minished 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. Use care to avoid exceeding the
approved engine-speed range, refer to
page 86.Do not coast with the clutch
depressed or with the transmis-
sion 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 move-
ment.<
Brake pads
For your own safety: use only
brake pads that BMW has
released for your particular vehicle
model. BMW cannot evaluate non-
approved brake pads to determine if
they are suitable for use, and therefore
cannot ensure the operating safety of
the vehicle if they are installed.<
Portable phone in the vehicleBMW recommends using mobile com-
munications devices, e.g. portable
phones, inside the vehicle with a suit-
able outside antenna. Otherwise, it can-
not be ruled out that the vehicle elec-
tronics and portable phone may
interfere with each other.

Everything from A to Z
173
Battery 157
charge 157
disposal 157
indicator lamp 18
jump-starting 159
remote control 30, 31
Battery charge current 18
Belts, refer to Safety
belts 56
Beverage holders 115
Blower
air conditioning 104
automatic climate
control 108
BMW High Performance
Synthetic Oils 139
BMW Maintenance
System 142
BMW sports seat 53
Bore, refer to Engine
data 166
Bottle holders, see Bever-
age holders 115
Brake fluid 141
indicator lamp 18, 141
level 141
Brake force display 96
Brake hydraulic system 126
Brake lamps
bulb replacement 151
indicator lamp, defective
lamp 88Brake lights
brake force display 96
Brake pads 126
brake fluid level
18, 126, 141
breaking in 124
disc brakes 126
indicator lamp 19
Brake rotors
brake system 126
breaking in 124
Brake wear warning
indicator lamp 19
Brakes
ABS 125
brake fluid 141
breaking in 124
indicator/warning lamp
18, 19
parking brake 73
Break-in procedures 124
Bulb replacement, refer to
Lamps and bulbs 149
Bulb, replacing 149
Buttons in steering wheel 22
C
California Proposition
65 warning 143
Can holders, see Beverage
holders 115
Capacities 169Car battery 157
Car care, refer to the Caring
for your vehicle brochure
Car keys, refer to Keys 30
Car radio, refer to the
Owner's Manual for Radio
Car telephone
preparation 115
Car telephone, refer to the
separate Owner's Manual
Car vacuum cleaner, con-
necting 116
Car wash, refer to the Caring
for your vehicle brochure
Carpet care, refer to the
Caring for your vehicle
brochure
Cassette operation, refer to
the Owner's Manual for
Radio/Onboard Computer
CBC Cornering Brake Con-
trol 125
warning lamp 19
CD changer, refer to the
Owner's Manual for
Radio/Onboard Computer
CD operation, refer to the
Owner's Manual for
Radio/Onboard Computer
Cellular phone 115
Center armrest
front 114Center high-mount brake
lamp
bulb replacement 152
Central locking system 30
button 34
passenger
compartment 34
Changing a wheel 153
Charge indicator lamp 18
Check Control 88
Check Gas Cap
indicator lamp 19
Child seats, refer to Child-
restraint systems 64
Child-restraint mounting
system (LATCH) 66
Child-restraint system 64
Chock 154
Cigarette lighter 115
Cigarette lighter socket 116
Cleaning chrome parts, refer
to the Caring for your vehi-
cle brochure
Cleaning light alloy wheels,
refer to the Caring for your
vehicle brochure
Cleaning position, convert-
ible top 45, 50
Cleaning the vehicle, refer to
the Caring for your vehicle
brochure
Cleaning windshield 84
OverviewControlsMaintenanceRepairsDataIndex

Everything from A to ZClock 89
12-/24-hour mode 89
setting, refer also to the
Owner's Manual for
Radio/Onboard Computer
Closing
from inside 34
from outside 31
Clothes hooks 125
Clutch
breaking in 124
Cockpit 14
Code, refer to the Owner's
Manual for Radio/Onboard
Computer
Coin box 115
Cold start, refer to Starting
the engine 71
Compact disc operation,
refer to the Owner's Man-
ual for Radio/Onboard
Computer
Compartments 114
Compression ratio, refer to
Engine data 166
Computer 90
Condensation, refer to Air
conditioning mode
104, 108
Configuring settings, refer to
Vehicle Memory, Key
Memory 70Connecting a vacuum
cleaner, refer to Cigarette
lighter 116
Consumption
display 86
Consumption, refer to Aver-
age fuel consumption 91
Control elements, refer to
Cockpit 14
Convenience operation
from outside 33
windows 32
Convertible top
cleaning position 45, 50
closing in an
emergency 48
electrical fault 48
indicator lamps 47
remote control 31
Convertible top activation
fully automatic top 46
manual top 41
Convertible top compart-
ment panel 37
Coolant 140
indicator lamp 19, 87
level 140
temperature gauge 87
Coolant water, refer to Cool-
ant 140
Cooling, refer to Tempera-
ture 104, 108Copyright 4
Cornering Brake Control
(CBC) 125
warning lamp 19
Correct tires 132
Cruise control 84
indicator lamp 20
Cup holders, see Beverage
holders 115
Curb weight, refer to
Weights 168
Current consumption, refer
to Energy control 86
Curve lighting, refer to
Adaptive headlights 98
Cylinders, refer to Engine
data 166
D
Dashboard, refer to
Cockpit 14
Data
capacities 169
dimensions 167
engine 166
technical 166
weights 168
Daytime driving lamps 97
DBC Dynamic Brake Control
19, 125
Deep water, refer to Water
on roadways 125Defrost position, refer
to Defrosting windows
105, 108
Defrosting and demisting
windows
air conditioning 105
automatic climate
control 108
Defrosting windows
105, 108
Defrosting windshield, refer
to Defrosting windows
105, 108
Demisting windows
air conditioning 105
automatic climate
control 108
Determining the maximum
load 118
Differential
breaking in 124
Digital clock 89
Dimensions 167
Dipstick, engine oil 138
Disc brakes 126
Displacement, refer to
Engine data 166
Display lighting, refer to
Instrument lighting 98
Displays, refer to Instrument
cluster 16

Everything from A to ZFlat tire 153
Flat Tire Monitor 94
space-saver spare tire 153
Flat Tire Monitor 94
indicator lamp 18, 19, 95
Flat tire, refer to Tire condi-
tion 129
Fluid reservoir for washer
systems 138
Fog lamps 99
indicator lamp 20
Follow me home lamps 97
Footbrake, refer to General
driving notes 125
Front airbags 61
Front fog lamps 99
Front seat adjustment 53
Fuel
display 87
quality 25
volume 169
Fuel consumption
display 91
Fuel display, refer to Fuel
gauge 87
Fuel economy, refer to
Energy control 86
Fuel filler door 24
release following an elec-
trical malfunction 24
Fuel level indicator, refer to
Fuel gauge 87Fuel mixture preparation 166
Fuel reserve indicator, refer
to Fuel gauge 87
Fuel tank capacity 169
Fully-automatic convertible
top 46
activation 46
convenience operation
32, 33
opening, closing 47
remote control 32
Fuses 157
G
Garage door opener, refer to
Integrated universal
remote control 112
Gasoline consumption, refer
to Average fuel consump-
tion 91
Gasoline, refer to Fuel spec-
ifications 25
Gear indicator 77, 81
Gear lever
automatic transmission
with Steptronic 79
sequential manual gear-
box SMG 75
Gearbox
manual transmission 74
Gearshift lever
manual transmission 74General driving notes 125
Glove compartment 111
Grills, refer to Ventilation
102, 106
Gross weight, refer to
Weights 168
H
Handbrake, refer to Parking
brake 73
Hardtop 127
Hardtop preparation 127
Hardtop, refer to the sepa-
rate Owner's Manual 127
Hazard warning flashers 14
Hazard warning triangle 23
Head restraints 54
Headlamp cleaning system
cleaning headlamps 84
washer fluid 138, 169
Headlamp control, auto-
matic 97
Headlamp flasher 99
indicator lamp 21
Headlamps
bulb replacement 149
care, refer to the Caring
for your vehicle brochure
Heated mirrors 59Heated rear window
air conditioning 104
automatic climate
control 109
Heated seats 58
Heating
exterior mirrors 59
rear window 104, 109
seats 58
Heating and ventilation
102, 106
Heavy loads, refer to Cargo
loading 119
Height adjustment
seats 53
steering wheel 59
Height, refer to
Dimensions 167
High beams 82, 83, 99
bulb replacement 150
headlamp flasher 99
indicator lamp 21
Holder for beverages 115
Hood release 134
Horn 14
Hub cap 154
Hydraulic brake assistant,
refer to DBC 125
Hydraulic system
brakes 126
Hydroplaning 125

Everything from A to Z
177
I
Ice warning 90
Ignition 71
Ignition key 30
positions 71
Ignition lock 71
Imprint 4
Indicator lamps 18
Indicator/warning lamp
airbags 18
alarm system 39
brakes 18, 19
Check Gas Cap 19
coolant 19, 87
DSC 19
Fasten safety belts 18
Flat Tire Monitor
18, 19, 95
fog lamps 20
reserve 87
rollover protection
system 19
Service Engine Soon 19
Individual air distribution 108
Individual settings, refer to
Vehicle Memory, Key
Memory 70
Inflation pressure monitor-
ing, refer to Flat Tire Moni-
tor 94
Inflation pressure, tires
25, 129INSPECTION 88
Instrument cluster 16
Instrument lighting 98
Instrument panel 14
Integrated universal remote
control 112
Interface socket for onboard
diagnostics (OBD) 143
Interior lamps 100
remote control 32
Interior motion sensor 38
switching off 32, 39
Interior rearview mirror 60
automatic dimming
feature 60
Interior temperature, adjust-
ment 104, 108
Interlock, refer to Steering
wheel lock 71
Intermittent
mode, wipers 83
Interval
display, service 88
J
Jack 153
Jacking points 154
Jump-starting 159
K
Key Memory 70Keys 30
with remote control 30
Kickdown 76, 80
L
Lamp defect 149
Lamps and bulbs 149
Lashing down loads, refer to
Cargo loading 118
Lashing eyelets, refer to
Securing cargo 120
Lashing fittings, refer to
Securing cargo 120
LATCH child-restraint
mounting system 66
Leather care, refer to the
Caring for your vehicle
brochure
LEDs light-emitting
diodes 100
Length, refer to
Dimensions 167
License plate lamp
bulb replacement 153
Light switch 97
Light-emitting diodes
(LEDs) 100
Lighter 115
LIGHTS ON warning 97
Lights, refer to Parking
lamps/Low beams 97Load, refer to Cargo
loading 118
Loading
vehicle 118
Load-securing devices 120
Lock buttons on doors, refer
to Locking 34
Lock, steering wheel 71
Locking
from inside 34
from outside 31, 33
Locking and unlocking
doors
from inside 34
from outside 31, 33
Low beams 97
automatic 97
bulb replacement 149
indicator lamp, defective
lamp 88
Lug bolts
key 154
torque 154
OverviewControlsMaintenanceRepairsDataIndex