brake rotor BMW X3 3.0I 2004 E83 Owner's Manual

Things to remember when driving
76
Things to remember when driving
Break-in procedures
To ensure that your vehicle provides maxi-
mum economy throughout a long service
life, we request that you observe the fol-
lowing instructions:
Engine and differential
Up to 1,200 miles/2,000 km:
During this initial period you should attempt
to avoid constant, steady-state operation
and vary both vehicle and engine speeds
as often as possible. Until the break-in
period has been completed you should
also refrain from exceeding the following:
>4,500 rpm or 100 mph/160 km/h.
Always obey all official speed limits.
Refrain from using full throttle and avoid
pressing the accelerator beyond the kick-
down point.
Once you have driven 1,200 miles/
2,000 km, the engine and vehicle speeds
can be gradually increased.
You should also comply with these break-in
procedures should the engine or one of the
differentials be replaced later in the course
of the vehicle's service life.
Tires
Due to technical factors associated with
their manufacture, tires do not achieve their
full traction potential until after an initial
break-in period. For this reason, drive with
extra care during the initial 200 miles/
300 km.
Obey your local and state maximum speed
limits.
When the vehicle is operated on wet
or slushy roads, a wedge of water
may form between the tire and the road
surface. This phenomenon is referred to as
hydroplaning and can lead to partial or
complete loss of traction, vehicle control
and braking effectiveness. Reduce your
speed on wet roads.<
Brake system
Approx. 300 miles/500 km must elapse
before the brake pads and rotors achieve
the optimal pad-surface and wear patterns
required for trouble-free operation and
long service life later on.
To break in the separate handbrake drums,
apply the handbrake lightly when coasting
to a standstill Ð at a traffic signal, for
instance; use caution to avoid posing a
danger to other road users.
To avoid corrosion, repeat this procedure
from time to time.
The brake lamps do not come on when the
handbrake is set.
Vacuum for the brake system servo
unit on your BMW is available only
when the engine is running. When you
move the vehicle with the engine off Ð e.g.
by towing Ð substantially higher levels of
pedal force will be required to brake the
vehicle.<
Clutch
The function of the clutch is also only at its
optimized level after a distance driven of
approx. 300 miles/500 km. During this
break-in period, engage the clutch gently.
General driving notes
High temperatures
Extreme temperatures occur at the
catalytic converter on this and every
catalyst-equipped vehicle. Do not remove
the heat shields installed adjacent to vari-
ous sections of the exhaust system, and
never apply undercoating to them. When
driving, standing at idle and while parking
take care to avoid possible contact
between the hot exhaust system and any
highly flammable materials such as hay,
leaves, grass, etc. Such contact could lead

Reference
At a glance
Controls
Driving tips
Mobility
77
to a fire, and with it the risk of serious prop-
erty damage as well as personal injury.<
Parking the vehicle
Condensation forms in the air conditioner
system during operation, and then exits
under the vehicle. Traces of condensed
water under the vehicle are thus normal.
Before driving into the car wash
Fold in the exterior mirrors, refer to
page 31, as otherwise they could be dam-
aged due to the width of the vehicle.
Deactivate the rain sensor as otherwise
damage could result from undesired wiper
activation, refer to page 42.
Hydroplaning
When driving on wet or slushy roads,
reduce road speed. If you do not, a
wedge of water can form between tires and
road surface. This phenomenon is referred
to as hydroplaning, and is characterized by
a partial or complete loss of contact
between tires and road surface, ultimately
undermining your ability to steer and brake
the vehicle.<
Driving through water
Do not drive through water on the
road if it is deeper than 20 in/50 cm,
and then only at walking speed. Otherwise,
the vehicle's engine, the electrical systems
and the transmission may be damaged.<
Safe braking
Emergency stops
The best way to brake is to apply maximum
pressure to the brake pedal during emer-
gency Ð panic stops. Since the vehicle
maintains steering responsiveness, you
can nevertheless avoid possible obstacles
with a minimum of steering effort.
Pulsation at the brake pedal combined with
sounds from the hydraulic circuits indicates
to the driver that ABS is in its active mode. Do not drive with your foot resting on
the brake pedal. Otherwise, even light
but consistent pedal pressure can lead to
high temperatures, brake wear and possi-
bly even brake failure.<
Wet conditions
While driving in wet conditions and in
heavy rain, it is a good idea to apply light
pressure to the brake pedal every few
miles. Watch traffic conditions to ensure
that this maneuver does not endanger
other road users. The heat which is gener-
ated by the brake applications helps to dry
the brake pads and rotors. The required
braking force will then be available when
you need it.
On a grade
You can retain full and unimpaired braking
efficiency by downshifting to a gear in
which only minimal brake applications are
needed when descending long or steep
downhill stretches.
You can further enhance the engine's brak-
ing effect by selecting a lower gear in the
automatic transmission's manual mode,
downshifting as far as first gear on
extremely steep stretches, refer to
page 38. This strategy helps you avoid
placing excessive loads on the brake sys-
tem.
During slower downhill driving, use the Hill
Descent Control HDC, refer to page 51.
Never drive with the clutch pressed,
with the transmission in Neutral or
with the engine switched off, as otherwise
there is no engine braking when the trans-
mission is in Neutral, and no power-assist
for brakes and steering.
Never allow floor mats, carpets or any other
objects to protrude into the area around the
accelerator and brake pedals and obstruct
their movement.<
Corrosion
When the vehicle is driven only occasion-
ally, during extended periods when the
vehicle is not used at all, and in operating
conditions where brake applications are

Things to remember when driving
78 less frequent, there is an increased ten-
dency for corrosion to form on rotors, while
contaminants accumulate on the brake
pads. This occurs because the minimal
pressure which must be exerted by the
pads during brake applications to clean the
rotors is not reached.
Should corrosion form on the brake rotors,
the brakes will tend to respond with a pul-
sating effect that even extended applica-
tion will fail to cure.
Cargo loading
To avoid loading the tires beyond
their approved carrying capacity,
never overload the vehicle. Overloading
can lead to overheating and increases the
rate at which damage develops inside the
tires. The ultimate result can assume the
form of a sudden air loss.<
Determining the load limit
1.Locate the following statement on the
driver's door pillar:
The combined weight of occu-
pants and cargo should never
exceed XXX lbs or YYY kg. Failure to
observe this can compromise your
vehicle's driving stability and cause
vehicle damage.<
2.Determine the combined weight of the
driver and passengers that will be riding
in your vehicle
3.Subtract the combined weight of the
driver and passengers from XXX
pounds or YYY kilograms4.The resulting figure equals the available
amount of cargo and luggage load
capacity.
For example, if the XXX amount equals
1,400 lbs and there will be five 150-lbs
passengers in your vehicle, the amount
of available cargo and luggage load
capacity is 650 lbs:
1,400 lbs minus 750 lbs = 650 lbs
5.Determine the combined weight of lug-
gage and cargo being loaded on the
vehicle. That weight should never
exceed the available cargo and luggage
load capacity calculated in Step 4
6.If your vehicle will be towing a trailer,
part of the load from your trailer will be
transferred to your vehicle. Consult the
manual for transporting a trailer to
determine how this may reduce the
available cargo and luggage load
capacity of your vehicle.
Load
The permitted load is the total of the weight
of occupants and cargo/luggage. The
greater the weight of occupants, the less
cargo/luggage can be transported.

Everything from A to Z
120 Bottle holder, refer to
Beverage holders 67
Brake fluid 96
Ð indicator lamp 96
Ð level 96
Ð replacing 96
Brake force display 54
Brake lamps
Ð defect 57
Ð indicator lamp 12
Ð replacing the bulbs 102
Brake pads and rotors
Ð breaking-in procedure 76
Brakes 77, 96
Ð ABS 77
Ð brake fluid 96
Ð break-in procedure 76
Ð handbrake 38
Ð indicator/warning
lamp 38
Brake system
Ð brake-fluid level 96
Ð brake pads 96
Ð corrosion 77
Ð disc brakes 76, 77
Ð indicator lamp 96
Ð rotors 76, 77
Brake wear warning
Ð brake pads 96
Ð indicator lamp 96
Break-in procedures 76
Bulbs and lamps 99
Buttons in steering
wheel 14
C
California Proposition
65 Warning 98
Capacities 117
Car care, refer to Caring for
your vehicle brochure
Car-care products, refer to
Caring for your vehicle
brochure
Care, refer to Caring for
your vehicle brochureCargo area 71
Ð capacity 116
Ð cover 71
Ð floor cover 72
Ð folding rear seat
backrest 71
Ð increasing volume 71
Ð lashing eyes 73
Ð manual unlocking 21
Ð opening, remote
control 19
Ð opening/closing 21
Ð opening from the
outside 21
Ð sockets 73
Ð volume 116
Cargo bay, refer to Cargo
area 71
Cargo loading 78
Caring for leather, refer to
Caring for your vehicle
brochure
Caring for the carpet, refer
to Caring for your vehicle
brochure
Caring for the vehicle finish,
refer to Caring for your
vehicle brochure
Car keys, refer to Key
set 18
Car phone preparation 70
Car wash 77
Car wash, refer to Caring
for your vehicle brochure
Catalytic converter, refer to
High temperatures 76
Central locking system 18
Ð interior 20
Changes, technical, refer to
For your own safety 6
Changing a wheel 103
Check Gas Cap
Ð indicator lamp 12, 84
Checking inflation
pressure 86
Child's seats, refer to
Child-restraint
systems 34
Child-restraint systems 34
Child-safety locks 36
Chock 103Chrome parts, care, refer to
Caring for your vehicle
brochure
Cigarette lighter
Ð front 69
Ð rear 69
Circulation of air, refer to
Recirculated-air
mode 61, 64
Cleaning, vehicle, refer to
Caring for your vehicle
brochure
Cleaning the windshield 42
Cleaning windows,
reservoir 94
Clean the rear window 42
Clock 46
Ð 12/24 hour mode 48
Ð setting, refer also to
Owner's Manual for
Radio/Onboard
computer 46
Clutch 76
Ð breaking in 76
Cockpit 10
Cold start, refer to Starting
the engine 37
Comfort operation
Ð panorama glass roof 20
Compact wheel
Ð wheel changes 103
Compression ratio, refer to
Engine data 114
Computer 47
Computer, functions 48
Condensation, refer to A/C
operation 61, 64
Connecting a vacuum
cleaner, refer to Lighter
socket 69
Consumption, refer to
Average fuel
consumption 48
Consumption indicator,
refer to Fuel gauge 45
Contents 3
Controls, refer to
Cockpit 10
Convenience operation
Ð from outside 20
Ð windows 20