2008 BMW M5 SEDAN brake rotor

Things to remember when driving
114
Things to remember when driving
Break-in period
Moving parts need breaking-in time to adjust to
each other. To ensure that your vehicle contin-
ues to provide optimized economy of operation
throughout an extended service life, we request
that you devote careful attention to the follow-
ing section.
Do not use the driving programs 5 and 6 during
break-in, refer to Drivelogic on page61.
Engine and differential
Always obey all official speed limits.
Up to 1,200 miles/2,000 km
Drive at changing engine and driving speeds,
however do not exceed 5,500 rpm or 105 mph/
170 km/h.
Avoid full-throttle operation and use of the
transmission's kick-down mode during these
initial miles.
From 1,200 miles/2,000 km to
3,000 miles/5,000 km
The engine and driving speed can gradually be
increased up to a continuous vehicle speed of
135 mph/220 km/h. Only drive at top speed
briefly, e.g. when passing.
Transmission
The function of the transmission is only at its
optimized level after driving a distance of
approx. 300 miles/500 km. Do not exceed
engine speeds of 5,500 rpm during this time.
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 reservedly 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 in a reserved manner during
this break-in period.
Clutch
The function of the clutch is only at its opti-
mized level after a distance driven of approx.
300 miles/500 km. With manual transmission:
During this break-in period, engage the clutch
gently.
Following part replacement
Observe the break-in instructions again if com-
ponents mentioned above must be replaced
after subsequent driving operation.
General driving notes
Closing luggage compartment lid
Operate the vehicle only when the lug-
gage compartment lid is completely
closed. Otherwise, exhaust fumes could pene-
trate into the passenger compartment.<
If it is absolutely necessary to drive with the lug-
gage compartment lid open:
1.Close all windows and the glass sunroof.
2.Increase the air volume of the automatic cli-
mate control to a high level, refer to
page99.
Hot exhaust system
As in all vehicles, extremely high temper-
atures are generated on the exhaust sys-
tem. Do not remove the heat shields installed
adjacent to it, 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

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flammable materials such as hay, leaves, grass,
etc. Such contact could lead to a fire, and with it
the risk of serious property damage as well as
personal injury. Do not touch hot exhaust tail
pipes. Otherwise there is a risk of burns.<
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 phenomenon is referred to as hydro-
planing, and is characterized by a partial or
complete loss of contact between the tires and
the road surface, ultimately undermining your
ability to steer and brake the vehicle.<
The risk of hydroplaning increases as the tread
depth of the tires decreases, refer also to Mini-
mum tire tread on page202.
Driving through water
Do not drive through water on the road if it
is deeper than 1 ft/30 cm, and then only at
walking speed at the most. Otherwise, the vehi-
cle's engine, the electrical systems and the
transmission may be damaged.<
Braking safely
Your BMW is equipped with ABS as a standard
feature. In situations that require it, it is best to
brake with full force. Since the vehicle maintains
steering responsiveness, you can still avoid
possible obstacles with a minimum of steering
effort.
The pulsing of he brake pedal indicates that the
ABS is controlling braking.
In certain braking situations the perforated
brake rotors can cause operating noises which,
however, have not effect on the performance
and operating safety of the brake system.
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.<
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 pressure on the brake pedal
can lead to high temperatures, brake wear and
possibly even brake failure.<
Sequential Manual Transmission: do not
drive in idle or with the engine switched
off, otherwise there will be no engine braking
action or support of the braking force and steer-
ing.
Manual transmission: do not drive with the
clutch depressed, in idle or with the engine
switched off, otherwise there will be no engine
braking action or support of the braking force
and steering.
Never allow floor mats, carpets or any other
objects to protrude into the area of movement
of the pedals and impair their operation.<
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.

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BMW M5 Engineering
V10 High Output Engine
With a 305 cu in/5 liter displacement, the high-
speed V10 engine generates a maximum out-
put of 373 kW and a maximum torque of
384 lb ft/520 Nm. Its spontaneous response
characteristics yield a very broad usable engine
speed range. At the maximum engine speed of
8250 rpm, the flow of fuel is interrupted in order
to protect the engine. Due to the powerful
engine dynamics, when the vehicle is at rest,
the maximum engine speed is limited to
7000 rpm.
Warming up
The emissions control system causes the
V10 high-output engine to have slightly
rougher running characteristics during its
warm-up phase.
When the engine is cold, the exhaust system
has a slightly metallic undertone due to the sys-
tem design.
For additional information of warming up, refer
to Tachometer on page66 and Engine oil tem-
perature on page67.
Compound brake
Your BMW M5 has a high-performance brake
s y s t em wi t h p e rf o ra t e d c o m p o u n d b r a k e r o t o r s .
Due to the special structural features of these
brake rotors, function noises occur during brak-
ing, but this has no effect on the performance,
operating safety, and stability of the brakes.
Braking correctly
In order to keep the brake system in optimum
condition, it is useful to put them under load at
regular intervals in accordance with the nature
of the vehicle.
Also refer to Corrosion on brake rotors on
page115.
Drive train
In your BMW M5, particular importance was
attached to the direct connection of the engine
to the drive system. Due to the torsionally rigid
design of the drive train, the transmission of the
torque is also audible, as is customary in a
sports car. As a result, load shifts can be dis-
tinctly audible. This does not in any way impair
the function or the service life of the compo-
nents.

Reference 239
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Assist, refer to
BMW Assist189
Assistance systems, refer to
Driving stability control
systems79
Assistance window20
"Assist. window off"21
AUC Automatic recirculated-
air control100
"Audio"149,151,156
Audio148
– controls148
– switching on/off148
– tone control149
– volume149
Audio device, external107
Automatic
– air distribution98
– air volume98
– headlamp control92
– service notification191
– steering wheel
adjustment43
– storing stations154
Automatic car washes116
– also refer to Caring for your
vehicle brochure
Automatic climate control97
– automatic air distribution98
– parked car ventilation101
– switching on and off101
– ventilation in rear101
Automatic closing of doors,
refer to Automatic soft
closing33
Automatic curb monitor48
Automatic lighting
– refer to Automatic headlamp
control92
– refer to Daytime running
lamps93
– refer to High-beam
assistant94
– refer to Interior lamps96
– refer to Pathway lighting93
– refer to Welcome lamps92
Automatic low beams, refer to
High-beam assistant94"Automatic programs"98
Automatic soft closing33
Automatic station search153
"Automatic ventilation"102
AUTO program for automatic
climate control98
"Auto Request"191
"Autostore" on the
radio152,
154
"AUX"149,168,170
AUX-In connection168
"AUX IN" in audio mode168
Average fuel consumption68
– setting units76
Average speed, refer to
Computer67
"Avoid ferries" for navigation
system134
"Avoid highways" for
navigation system134
Avoiding freeways for
navigation134
Avoiding unintentional
alarms36
"Avoid tollroads" for
navigation system134
Axle loads, refer to
Weights232
"A - Z"182
B
"Backrest"51
Backrest contour, refer to
Lumbar support42
Backrests, refer to Seats42
Backrest width42
Back seats, refer to Rear seats
Backup lamps, replacing
bulbs216
"Balance", refer to Tone
control150
Band-aids, refer to First-aid
kit224
Bass, refer to Tone
control149
"Bass", tone control150Battery, refer to Vehicle
battery222
– jump starting224
Battery replacement, remote
control for comfort
access37
BC button, refer to
Computer67
Being towed225
Belts, refer to Safety belts45
Beverage holder, refer to Cup
holders108
Blind, refer to Sun blinds105
Blower, refer to Air volume99
"Bluetooth"175
"BMW Assist"190
BMW Assist189
– activating194
– concierge service192
– contacting BMW Customer
Relations192
– displaying vehicle data195
– offered services189
– roadside assistance190
– TeleService191
– updating193
"BMW Contact"184
"BMW Contact
Numbers"184
BMW homepage4
BMW maintenance
system212
"BMW Service settings"193
BMW website4
Bottle holder, refer to Cup
holders108
Bracket for telephone or
mobile phone, refer to Snap-
in adapter188
Brake assistant80
Brake force display87
Brake lamps
– replacing bulbs216
– two-stage87
Brake rotors
– breaking-in114
– refer to Braking safely
115