2007 BMW 525I tires

Things to remember when driving
126
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.
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 4,500 rpm or 100 mph/
160 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
The engine and vehicle speed can gradually be
increased.
SMG Sequential Manual Transmission
Do not use the acceleration assistant during the
break-in period, refer to page64.
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.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/
tailgate
Operate the vehicle only when the lug-
gage compartment lid/tailgate is com-
pletely closed. Otherwise, exhaust fumes could
enter the interior of the vehicle.<
If special circumstances should make it abso-
lutely necessary to operate the vehicle with the
luggage compartment lid/tailgate open:
1.Close all windows and the glass sunroof or
panorama glass sunroof.
2.Increase the air volume of the automatic cli-
mate control to a high level, refer to
page109.
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
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.<

Driving tips
127Reference
At a glance
Controls
Communications
Navigation
Entertainment
Mobility
Mobile communications devices in
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 communication
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 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 page213.
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.<
Using handbrake on inclines
On inclines, do not hold the vehicle with
the clutch; use the handbrake. Otherwise
greater clutch wear will result.<
SMG Sequential Manual Transmission
Start off quickly on slopes. Do not hold
the vehicle on a hill by pressing the accel-
erator, but apply the handbrake instead. Other-
wise overheating can occur in the transmission
region.<
Starting assistant
The starting assistant enables you to start off
conveniently on slopes. The handbrake is not
required for this purpose.
1.Hold the vehicle with the footbrake.
2.Release the footbrake and drive off quickly.
The starting assistant holds the vehicle
for approx. 2 seconds after releasing the
footbrake. Depending on the load, the vehicle
may also roll back slightly during this time.
After releasing the footbrake, drive off quickly,
otherwise the starting assistant no longer holds
the vehicle after approx. 2 seconds and it
begins to roll back.<
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.
Pulsation of the brake pedal, combined with
sounds from the hydraulic circuits, indicate that
ABS is in its active mode.
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

Things to remember when driving
128 can lead to high temperatures, brake wear and
possibly even brake failure.<
The braking effect of the engine can be further
increased by downshifting, if necessary all the
way down into first gear. This strategy helps
you avoid placing excessive loads on the brake
system. For information on downshifting in the
manual mode of the automatic transmission,
refer to page65.
Do not drive with the clutch depressed, in
idle or with the engine switched off, other-
wise 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.
When vehicle is parked
Condensation forms in the air conditioner sys-
tem during operation, and then exits under the
vehicle. Traces of condensed water under the
vehicle are therefore normal.
Before driving into a car wash
To prevent the exterior mirrors on this vehicle
from being damaged, always fold them in by
hand before entering an automatic car wash.
General information on the care and mainte-
nance of your BMW is contained in the Caring
for your vehicle brochure.
Rear window wiper*
The rear window wiper can be damaged in car
washes. Take appropriate protective measures;
ask the car wash operator if necessary.
With comfort access and automatic
transmission
Insert the remote control into the ignition lock.
The engine can be switched off in selector lever
position N. Also refer to page40.
Cargo loading
To avoid loading the tires beyond their
approved carrying capacity, never over-
load the vehicle. Overloading can lead to over-
heating and increases the rate at which damage
develops inside the tires. The ultimate result
can assume the form of a sudden blow-out.<
Determining loading limit
1.Locate the following statement on your
vehicle's placard
*:
The combined weight of occupants
and cargo should never exceed
YYY lbs. or XXX kg, as otherwise the vehicle
may be damaged and unstable driving con-
ditions may result.<
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 YYY lbs. or XXX kg.
4.The resulting figure equals the available
amount of cargo and luggage load capacity.
For example, if the XXX amount equals

Destination entry
144 4.Change entry.
For operation, refer to Entering a destina-
tion manually, page135.
5.Select "Store in address book" and press
the controller.
Deleting individual destinations from
address book
1.Select "Address book" and press the con-
troller.
2.Select the entry and press the controller.
3.Select "Delete address" and press the con-
troller.
4.Select "Yes" and press the controller.
Deleting all destinations from address
book
1.Open the start menu.
2.Press the controller to open the menu.
3.Select "Settings" and press the controller.
4.Select "Vehicle / Tires" and press the con-
troller.
5.Change to upper field if necessary. Turn the
controller until "Delete data" is selected and
press the controller.6.Select "Delete address book" and press the
controller.
7.Select "Yes" and press the controller.
Storing home address
You can store your current position or the cur-
rent destination as the home address in the
address book. This entry occupies the second
position in the address book.
1.Select "Address book" and press the con-
troller.
2.Change into the third field from the top.
Turn the controller until "Home address" is
selected and press the controller.
3.Select "Use current location as address", or
"Save current destination" during the desti-
nation guidance, and press the controller.
4.Select "Store in address book" and press
the controller.
Adopting home address as destination
1.Select "Home address" and press the con-
troller.
2.Select "Start guidance" and press the con-
troller.
Changing home address
1.Select "Home address" and press the con-
troller.
2.Select "Edit address" and press the con-
troller. For operation, refer to Entering a
destination manually, page135.

Mobility
This section helps you maintain your mobility
by supplying important information on vital
topics including fuels and lubricants,
wheels and tires, service, maintenance
and breakdown assistance.
Mobility

Wheels and tires
208
Wheels and tires
Tire inflation pressure
Information for your safety
The condition of the tires and the maintenance
of the specified tire pressure are crucial not only
to the tire's service life, but also to driving com-
fort and most importantly, driving safety.
Checking pressure
Only check tire inflation pressure when the tires
are cold. This means after a maximum of
1.25 miles/2 km driving or when the vehicle has
been parked for at least 2 hours. When tires are
warm, the tire inflation pressure increases.
Check the tire inflation pressure regularly
and correct it as needed, even on the
compact tire
*: at least twice a month and before
starting long trips. Otherwise driving instability
or tire damage, and therefore accidents, can
result from incorrect tire inflation pressures.
Do not drive with depressurized, i.e. flat tires,
except run-flat tires. A flat tire will seriously
impair your vehicle's handling and braking
response. Attempts to drive on a flat tire can
lead to a loss of control over the vehicle.<
After correcting the tire inflation pressure,
reinitialize the Flat Tire Monitor, refer to
page91, or reset the Tire Pressure Monitor,
refer to page93.<
Pressure specifications
The tables below provide all the correct inflation
pressures for the specified tire sizes at ambient
temperature.
The inflation pressures apply to the tire
sizes and tire brands respectively
approved and recommended by BMW; a list of
these is available from your BMW center.<
For correct identification of the right tire infla-
tion pressure for your tires, observe the follow-
ing:
>Tire sizes of your vehicle>Load conditions
>Maximum allowable driving speed
Tire inflation pressures for speeds
up to 100 mph/160 km/h
For normal driving up to 100 mph/160 km/h,
adjust pressures to the respective tire inflation
pressures listed on the following pages in the
column Traveling speeds up to max. 100 mph/
160 km/h to achieve optimum driving comfort.
These pressure specifications can be found on
the door post when you open the driver's door.
The permissible top speed for these tire
inflation pressures is 100 mph/160 km/h.
Do not exceed this speed, otherwise tire dam-
age and accidents may result.<
Tire inflation pressures for speeds
above 100 mph/160 km/h
In order to drive at maximum speeds in
excess of 100 mph/160 km/h, please
observe, and, if necessary, adjust tire pressures
for speeds exceeding 100 mph/160 km/h from
the relevant table on the following pages. Oth-
erwise tire damage and accidents could
occur.<
Observe all national and local maximum speed
limits, otherwise violations of the law could
occur.

Mobility
209Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
525i/530i
Tire sizePressure specifications in psi/kPa
Compact wheel
*:
T 135/80 R 17 102 M61/420
Traveling speeds
up to max. of
100 mph/160 km/hTraveling speeds
including those exceeding
100 mph/160 km/h
All pressure specifications in
the table are indicated in psi/
kilopascal with cold tires.
Cold = ambient temperature
245/45 R 17 95 W
225/55 R 16 95 H M+S
245/45 R 17 99 V M+S XL32/220 33/230 32/220 33/230 35/240 42/290
225/50 R 17 94 V M+S
225/50 R 17 94 W
245/40 R 18 93 W
225/50 R 17 94 H M+S32/220 36/250 32/220 35/240 36/250 44/300
Front: 245/40 R 18 93 W
Rear: 275/35R1895W32/220 33/230 32/220 33/230 36/250 42/290
Front: 245/35 R 19 93 Y XL
Rear: 275/30R1996YXL32/220 38/260 32/220 33/230 35/240 42/290
More details on the permissible load and weights can be found on page241.

Wheels and tires
210
525xi/530xi
530xi Sports Wagon
Tire sizePressure specifications in psi/kPa
Compact wheel
*:
T 135/80 R 17 102 M61/420
Traveling speeds
up to max. of
100 mph/160 km/hTraveling speeds
including those exceeding
100 mph/160 km/h
All pressure specifications in
the table are indicated in psi/
kilopascal with cold tires.
Cold = ambient temperature
245/45 R 17 95 W
245/45 R 17 99 V M+S XL32/220 35/240 32/220 33/230 35/240 42/290
225/50 R 17 94 V M+S
225/50 R 17 94 W
225/50 R 17 94 H M+S
245/40 R 18 93 W32/220 36/250 32/220 36/250 38/260 45/310
Front: 245/40 R 18 93 W
Rear: 275/35 R 18 95 W32/220 35/240 32/220 33/230 38/260 42/290
More details on the permissible load and weights can be found on page241.
Tire sizePressure specifications in psi/kPa
Compact wheel
*:
T 135/80 R 17 102 M61/420
Traveling speeds
up to max. of
100 mph/160 km/hTraveling speeds
including those exceeding
100 mph/160 km/h
All pressure specifications in
the table are indicated in psi/
kilopascal with cold tires.
Cold = ambient temperature
225/50 R 17 94 W M+S
225/50 R 17 94 W
245/45 R 17 95 W
225/50 R 17 94 H M+S
245/45 R 17 99 V M+S XL32/220 39/270 32/220 39/270 38/260 45/310
245/40 R 18 93 Y 32/220 39/270 32/220 36/250 35/240 42/290
More details on the permissible load and weights can be found on page241.