2007 BMW 328XI COUPE brake rotor

Things to remember when driving
124
Things to remember when driving
Break-in period
Moving parts need breaking-in time to adjust to
each other. Please follow the instructions below
in order to achieve the optimal service life and
economy of operation for your vehicle.
Engine and differential
Always obey all official speed limits.
Up to 1,200 miles/2,000 km
Drive at varying engine and road speeds, but do
not exceed an engine speed of 4500 rpm or a
road speed of 100 mph/160 km/h.
Avoid full-throttle operation and use of the
transmission's kick-down mode.
After driving 1,200 miles/2,000 km
Engine and vehicle speeds can be gradually
increased.
Tires
Due to technical factors associated with their
manufacture, tires do not achieve their full trac-
tion potential until after an initial break-in
period. Therefore, drive cautiously during the
first 200 miles/300 km.
Brake system
Brakes require an initial break-in period of
approx. 300 miles/500 km to achieve optimized
contact and wear patterns between brake pads
and rotors. Drive cautiously during this break-in
period.
Clutch
The function of the clutch reaches its optimal
level only after a distance driven of approx.
300 miles/500 km. During this break-in period,
engage the clutch gently.
Following part replacement
The same break-in procedures should be
observed if any of the components mentioned
above have to be renewed in the course of the
vehicle's operating life.
General driving notes
Close the luggage compartment lid
Operate the vehicle only when the lug-
gage compartment lid is closed. Other-
wise, exhaust fumes could enter the interior of
the vehicle.<
If special circumstances make it absolutely nec-
essary to drive with the luggage compartment
lid open:
1.Close all windows and the glass roof.
2.Increase the air flow rate of the automatic
climate control considerably, refer to
page106.
Hot exhaust system
In all vehicles, extremely high tempera-
tures are generated in the exhaust sys-
tem. Do not remove the heat shields installed
adjacent to various sections of the exhaust sys-
tem, and never apply undercoating to them.
When driving, standing at idle and while park-
ing, 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 to a fire, with the
risk of serious personal injuries and property
damage. Do not touch hot exhaust tail pipes.
Otherwise there is a risk of burns.<
Mobile phone in the vehicle
BMW discourages the use of mobile
communications devices, e.g. mobile
phones, inside the vehicle without a direct con-
nection to an outside antenna. Otherwise, the
vehicle electronics and mobile communications

Driving tips
125Reference
At a glance
Controls
Communications
Navigation
Entertainment
Mobility
device can influence one another. In addition,
there is no assurance that the radiation which
results from transmission will be dissipated
from the vehicle interior.<
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 sur-
face. This situation, known as hydroplaning,
means that the tire can completely lose contact
with the road surface, so that neither the car can
be steered nor the brake be properly applied.<
The risk of hydroplaning increases with declin-
ing tread depth on the tires, refer also to Mini-
mum tread depth on page220.
Driving through water
Drive through water on the road only if it is
not deeper than 1 ft/30 cm, and then only
at walking speed at the most. Otherwise, the
vehicle's engine, the electrical systems and the
transmission may be damaged.<
Use the parking brake on inclines
On inclines, do not hold the vehicle with
the clutch; use the parking brake. Other-
wise greater clutch wear will result.<
For more information about the drive-off assis-
tant, refer to page91.
Braking safely
Your BMW is equipped with ABS as a standard
feature. Applying the brakes fully is the most
effective way of braking in situations in which
this is necessary. Since the vehicle maintains
steering responsiveness, you can still avoid
possible obstacles with a minimum of steering
effort.
Pulsation of the brake pedal, combined with
sounds from the hydraulic circuits, indicate that
ABS is in its active mode.
Driving in wet conditions
When roads are wet or there is heavy rain,
briefly exert gentle pressure on the brake pedal
every few miles. Monitor traffic conditions to ensure that this maneuver does not endanger
other road users. The heat generated in this
process helps dry the pads and rotors to ensure
that full braking efficiency will then be available
when you need it.
Hills
To prevent overheating and the resulting
reduced efficiency of the brake system,
drive long or steep downhill gradients in the
gear in which the least braking is required. Even
light but consistent brake pressure can lead to
high temperatures, brake wear and possibly
even brake failure.<
You can increase the engine's braking effect by
shifting down, all the way to first gear if neces-
sary. This strategy helps you avoid placing
excessive loads on the brake system. Down-
shifting in manual mode of the automatic trans-
mission, refer to page62.
Never drive with the clutch held down,
with the transmission in idle or with the
engine switched off; otherwise, engine braking
action will not be present or there will be no
power assistance to the brakes or steering.
Never allow floor mats, carpets or any other
objects to protrude into the area around the
pedals, otherwise pedal function could be
impaired.<
Corrosion on brake rotors
When the vehicle is driven only occasionally,
during extended periods when the vehicle is not
used at all, and in operating conditions where
brake applications are less frequent, there is an
increased tendency for corrosion to form on
rotors, while contaminants accumulate on the
brake pads. This occurs because the minimum
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 pulsating
effect that even extended application will fail to
cure.

Reference 253
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
"Audio", refer to Tone
control161
Audio device, external114
Automatic
– air distribution106
– air flow rate106
– cruise control66,67
– headlamp control100
– service notification203
– storing of stations165
Automatic climate control104
– automatic air
distribution106
– settings via iDrive105
Automatic curb monitor53
"Automatic programs" with
automatic climate
control106
Automatic recirculated-air
control AUC106
Automatic station search165
Automatic transmission with
Steptronic61
– interlock61,62
– overriding selector lever
lock63
– shiftlock, refer to Changing
selector lever position62
– sport program62
– towing238
– tow-starting238
"Automatic ventilation"108
AUTO program for automatic
climate control106
"Autostore"
– on the radio166
"AUX"160,180,181
– AUX-In port180
– USB/audio interface181
AUX-IN
– port114
AUX-In port180
Average fuel consumption76
– setting the units78
Average speed76
"Avoid ferries" in
navigation145
"Avoid highways" in
navigation145Avoid highways in
navigation145
Avoiding unintentional
alarms36
"Avoid tollroads" in
navigation145
Axle loads, refer to
Weights
247
"A - Z"193,194
B
Backrest contour, refer to
Lumbar support47
Backrests, refer to Seat
adjustment46
Backrest width adjustment47
Back seats
– refer to Rear seats48
Backup lamps
– replacing bulb232
Backup lamps, refer to Tail
lamps232
Bag holder118
Balance, tone control161
Band-aids, refer to First-aid
pouch237
Bar, refer to Towing
methods239
Base plate for telephone or
mobile phone
– refer to Snap-in adapter in
the center armrest storage
compartment114
Bass, tone control161
Bass sounds, refer to Treble
and bass161
Battery234
– charging234
– disposal38,234
– jump starting237
– remote control28
– temporary power failure234
Battery renewal
– remote control38
– remote control for vehicle38
Being towed239
Belt hand-over52
Belts, refer to Safety belts51Belt tensioner, refer to Safety
belts51
Beverage holders, refer to
Cup holders115
Blinds, refer to Roller sun
blinds113
Blower, refer to Air flow
rate106
Bluetooth, refer to separate
Owner's Manual
"BMW Assist"202,203,204
BMW Assist
– activating206
– Concierge service204
– contacting BMW Customer
Relations204
– Roadside Assistance202
– services offered201
– TeleService203
"BMW Contact"196
"BMW Contact
Numbers"196
BMW Homepage
4
BMW Maintenance
System228
"BMW Service settings"207
BMW webpage4
Bottle holders, refer to Cup
holders115
Brake assist, refer to Dynamic
Brake Control DBC89
Brake fluid, refer to Service
requirements79
Brake Force Display97
Brake lamps
– replacing bulb232
– two-stage97
Brake pads124
– breaking in124
Brake rotors125
– brakes124
– breaking in124
Brakes
– ABS89
– BMW Maintenance
System228
– breaking in124
– parking brake60
– service requirements79