2006 BMW 525I engine

Things to remember when driving
116
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 Gearbox
Do not use the acceleration assistant during the
break-in period, refer to page61.
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
climate control to a high level, refer to
page100.
Hot exhaust system
As in all vehicles, extremely high temper-
atures are generated on exhaust system.
Do not remove the heat shields installed adja-
cent 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.<

Driving tips
117Reference
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.<
Interior and exterior mirrors,
automatic dimming feature*
This feature is controlled by two photocells in
the inside rearview mirror. One is integrated into
the glass of the mirror, while the other is located
at an offset position on the rear of the mirror
housing.
For trouble-free operation, keep the photocells
clean and do not cover the area between the
interior rearview mirror and the windshield. Do
not attach stickers of any kind to the windshield
in front of the mirror, either.
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 page193.
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 Gearbox
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 parking brake is
not required for this purpose.
1.Hold the vehicle with the footbrake.
2.Release the footbrake and immediately
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, immediately start
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.

Things to remember when driving
118 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 pedal pressure can lead to
high temperatures, brake wear and possibly
even brake failure.<
The braking effect of the engine can be further
increased by downshifting in the manual mode
of the automatic transmission, if necessary into
first gear, refer to page62. This prevents over-
loading of the brakes.
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.
With comfort access and automatic
transmission
Insert the remote control into the ignition lock.
The engine can be switched off in the selector
lever position N. Also refer to page39.
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
XXX lbs. or YYY kg. Otherwise, this could

Telephoning
166
Telephoning
The concept
Your BMW is equipped with a full mobile phone
preparation package. After logging on a suitable
mobile phone on the vehicle once, you can
operate the mobile phone via iDrive, with the
buttons on the steering wheel and by voice.
A mobile phone that has been logged on once is
automatically detected again with the engine
running or the ignition switched on as soon as
it is in the vehicle interior. The logon data of up
to four mobile phones can be stored simulta-
neously. If several mobile phones are detected
simultaneously, the respective last mobile
phone logged on can be operated via the vehi-
cle.
Using a phone in your vehicle
Using the snap-in adapter*
The so-called snap-in adapter, a mobile phone
cradle, enables the battery to be charged and
the mobile phone to be connected to the exter-
nal antenna of your vehicle. This ensures
improved network reception and a consistent
voice reproduction quality. Ask your BMW cen-
ter which mobile phones snap-in adapters are
offered for.
BMW discourages the use of mobile
phones or other mobile communications
devices 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.<
Avoid operating a mobile phone detected by
the vehicle with the keypad of the mobile
phone, otherwise malfunctions can occur.
For your safety
A car phone makes life more convenient in
many ways, and can even save lives in an emer-
gency. While you should consult your mobile
phone's separate owner's manual for a detailed
description of safety precautions and informa-
tion, we request that you direct your particular
attention to the following:
Only make entries when the traffic situa-
tion allows you to do so. Do not hold the
mobile phone in your hand while you are driving;
use the hands-free system instead. If you do
not observe this precaution, your being dis-
tracted can endanger vehicle occupants and
other road users.<
Suitable mobile phones
Ask your BMW center which mobile phones
with a Bluetooth interface are supported by the
mobile phone preparation package or which
mobile phones snap-in adapters are available
for. These mobile phones support the functions
described in this Owner's Manual with a certain
software version. Malfunctions can occur with
other mobile phones.
Care instructions
You can find what you need to know about car-
ing for your mobile phone in the separate Caring
for your vehicle brochure and in the mobile
phone owner's manual.
Operating options
You can operate the mobile phone* using:
>The steering wheel, refer to page11
>iDrive, refer to page16
>Voice commands, refer to page174
*

Telephoning
168
Preparation with mobile phone
6.Additional operations must be carried out
on the mobile phone and differ depending
on the model, refer to the operating instruc-
tions of your mobile phone, e.g. find, con-
nect or link under Bluetooth device.
Logging on
Depending on your mobile phone, you will first
be requested consecutively via the display of
your mobile phone or the Control Display to
enter the Bluetooth passkey you specified.
Display on the Control Display if the Bluetooth
passkey can be entered with iDrive:
7.Select "Add device" and press the control-
ler.
8.Enter the Bluetooth passkey.
Depending on the mobile phone, approx.
30 seconds are available for entering the
Bluetooth passkey on the mobile phone
and on the Control Display.
9.Select "Confirm passkey" and press the
controller.
10.Wait a few seconds until the list of the
logged-on mobile phones is shown on the
Control Display and "Phone" is selected.To cancel the logon of the mobile phone on the
vehicle:
Select "Refuse connection" and press the con-
troller.
The next time you use the mobile phone in the
vehicle interior, it will be detected within a max-
imum of two minutes with the engine running or
the ignition switched on.
As soon as a mobile phone is detected by the
vehicle, the phone book entries stored on the
SIM card or on your mobile phone are trans-
ferred to your vehicle, refer to the operating
instructions of your mobile phone if necessary.
This transfer is dependent on your mobile
phone, refer to the operating instructions of
your mobile phone if necessary, and can take
several minutes.
Up to four mobile phones can be logged on
consecutively. If you log on a fifth mobile phone,
the logon data of the last mobile phone in the
list will be deleted, refer to below.
List of logged-on mobile phones
All mobile phones for which the vehicle has
stored the logon data can be displayed. If sev-
eral logged-on mobile phones are detected by
the vehicle simultaneously, you can operate the
mobile phone highest up in the list via the vehi-
cle.
You can change the order of the mobile phones
in the list. As long as a mobile phone is selected
in this list, the mobile phones cannot be oper-
ated via the vehicle.
iDrive, for principle details, refer to page16.
1.Press the button to open the start
menu.
2.Open the menu by pressing the controller.
3.Select "Communication settings" and
press the controller.
4.Select "Bluetooth" and press the controller.
5.Select "Phone" and press the controller.

Telephoning
170 3.Select the menu and press the controller.
4.Select "Communication settings" and
press the controller.
5.Select "Bluetooth" and press the controller.
6.Select "Settings" and press the controller.
the Bluetooth link is activated.
7.Select "Bluetooth communication active"
and press the controller to activate or deac-
tivate the link.
Adjusting volume
Turn the knob during a call to select the desired
volume.
This volume for the hands-free system is main-
tained, even if the other audio sources are set to
minimum volume.You can also adjust the volume with buttons on
the steering wheel, refer to page11.
The setting is stored for the remote control cur-
rently in use.
Operation via iDrive
You can operate the following functions via
iDrive:
>Dial the phone number.
>Dial phone numbers from the phone book.
>Select stored phone numbers, e.g. from the
list of accepted calls.
>Hang up.
With the ignition switched off and radio readi-
ness, e.g. after removing the remote control,
you can continue an ongoing call for a maximum
of 25 minutes via the handsfree system.
Requirements
The logon data of the mobile phone are stored
in the vehicle and the mobile phone is ready to
operate.
The engine is running or the ignition is switched
on.
The mobile phone is detected by the vehicle.
iDrive, for principle details, refer to page16.
1.Press the button.
This opens the start menu.
2.Move the controller forward to open
"Communication".

Refueling
186
Refueling
Always switch off the engine before refu-
eling, otherwise no fuel can be filled into
the tank and a message is displayed.<
When handling fuel, always observe all
applicable precautionary measures and
regulations. Never transport reserve fuel con-
tainers in the vehicle. These could become
leaky and cause an explosion or a fire in an acci-
dent.<
Fuel filler door
To open and close: press the rear edge of the
fuel filler door.
Manual release
If an electrical malfunction should occur, you
can unlock the fuel filler door manually.
Sedan
1.In the luggage compartment, raise the floor
mat and the cover located beneath it.
2.Open the snap fasteners of the right side
panel and take off the side panel.3.Pull the knob with the gas pump symbol.
Sports Wagon
1.Unhook the retaining strap*, refer to
page112.
2.Open the right-hand side panel in the cargo
area.
3.Pull the knob with the gas pump symbol.
Observe the following when refueling
When handling fuels always observe any
safety guidelines posted at the service
station.<
Place the fuel filler cap in the bracket attached
to the fuel filler door.

Mobility
187Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
When refueling, insert the filler nozzle com-
pletely into the filler pipe. Lifting the filler nozzle
during refueling leads to
>premature pump shutoff
>a reduced efficiency of the fuel-vapor
recovery system.
The fuel tank is full when the filler nozzle clicks
off the first time.
Fuel tank capacity
Approx. 18.5 gallons/70 liters, including the
reserve capacity of approx. 2.1 gallons/8 liters.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, otherwise engine functions are not
ensured and damage can occur.<
Fuel filler cap
Closing
Fit the cap and turn it clockwise until you clearly
hear a click.
Do not jam the strap attached to the fuel
filler cap between the fuel filler cap and
the vehicle. A message is displayed if the cap is
loose or missing.<
Fuel specifications
Do not use leaded gasoline, otherwise
permanent damage to the catalytic con-
verter will result.<
Required fuel
Premium Unleaded Gasoline
The minimum Octane Rating is 91.
If you use gasoline with this minimum Octane
Rating, the engine may produce knocking
sounds when starting at high outside tempera-
tures. This has no affect on the engine life.
Minimum octane rating corresponds to the Anti
Knock Index AKI and is determined according
to the so-called (R+M)/2 method.
Use high-quality brands
Field experience has indicated significant dif-
ferences in fuel quality: volatility, composition,
additives, etc., among gasolines offered for sale
in the United States and Canada. Fuels contain-
ing up to and including 10 % ethanol or other
oxygenates with up to 2.8 % oxygen by weight,
that is, 15 % MTBE or 3 % methanol plus an
equivalent amount of co-solvent, will not void
the applicable warranties with respect to
defects in materials or workmanship.
The use of poor-quality fuels may result in
drivability, starting and stalling problems
especially under certain environmental condi-
tions such as high ambient temperature and
high altitude.
Should you encounter drivability problems
which you suspect could be related to the fuel
you are using, we recommend that you respond
by switching to a recognized high-quality
brand.
Failure to comply with these recommendations
may also result in unscheduled maintenance.<