2008 BMW 750LI navigation

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Updating services
You will be notified of any changes in the ser-
vices offered by BMW Assist. If this occurs, you
should update the services.
iDrive, for principle details, refer to page16.
1.Press the button to open the start
menu.
2.Move the controller toward "BMW Assist".
3.Select "Status" and press the controller.
4.Select "BMW Assist" and press the control-
ler.
5.Select "UPDATE" and press the controller.
The updating process takes a few minutes.
Terminating services
When you terminate services, the connection to
BMW Assist is deactivated.
iDrive, for principle details, refer to page16.
1.Press the button to open the start
menu.
2.Move the controller toward "BMW Assist".
3.Select "Status" and press the controller.
4.Select "BMW Assist" and press the control-
ler.
5.Select "DEACTIV." and press the control-
ler.
BMW Assist is blocked from use, and your vehi-
cle's current position will not be transmitted
during an emergency call
*. To unblock the ser-
vice, reactivate BMW Assist, see below. The
contractual agreement is not affected by this.
Reactivate BMW Assist, if necessary, to log on
again.
Activating BMW Assist
BMW Assist services can only be used if BMW
Assist is activated.
Requirements
>Make sure that the vehicle can determine its
current position. Reception is best when
you have an unobstructed view of the sky.
>Leave ignition switched on while connect-
ing to the system.
Activating
iDrive, for principle details, refer to page16.
1.Press the button to open the start
menu.
2.Move the controller toward "BMW Assist".
3.Select "Status" and press the controller.
4.Select "BMW Assist" and press the control-
ler.

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Fuel specifications
Do not use leaded gasoline; otherwise,
you will damage the catalytic converter.
Do not fill the tank with E85, i.e. fuel consisting
of 85Ξ ethanol or flex fuel. Otherwise the
engine and fuel supply system will be dam-
aged.<
Required fuel
Super Premium Gasoline/AKI 91
This gasoline is highly recommended.
However, you may also use gasoline with a
lower AKI rating. The minimum AKI rating is 87.
If you use gasoline with this minimum AKI rat-
ing, the engine may produce knocking sounds
when starting at high outside temperatures.
This has no effect on the engine life.
Do not use any gasoline below the mini-
mum specified fuel grade. Otherwise the
engine could be damaged.<
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 10Ξ ethanol or other
oxygenates with up to 2.8Ξ oxygen by weight,
that is, 15Ξ MTBE or 3Ξ 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 driveability 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
such as gasoline that is advertised as Top Tier
Detergent Gasoline.
Failure to comply with these recommendations
may result in unscheduled maintenance.<

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Tire inflation pressures for 750i/Li
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a max. of
100 mph / 160 km/hAll traveling 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
245/55 R 17 102 H M+S 32/220 32/220 32/220 33/230 32/220 38/260
245/50 R 18 100 V M+S A/S
245/50 R 18 100 W
245/50 R 18 100 H M+S
245/50 R 18 104 V M+S XL32/220 35/240 32/220 36/250 35/240 42/290
Front: 245/45 R 19 98 W 32/220 - 32/220 - 33/230 -
Rear: 275/40 R 19 101 W - 33/230 - 35/240 - 39/270
Front: 245/45 R 19 98 Y 32/220 - 32/220 - 32/220
Rear: 275/40 R 19 101 Y - 33/230 - 32/220 35/240
Front: 245/40 R 20 95 Y 32/220 - 32/220 - 33/230 -
Rear: 275/35 R 20 98 Y - 36/250 - 35/240 - 39/270
Front: 245/35 ZR 21 96 Y XL 33/230 - 35/240 - 36/250 -
Rear: 285/30 ZR 21 100 Y XL - 39/270 - 36/250 - 42/290
More details on the permissible load and weights can be found on page228.

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Tire coding
Knowledge of the labeling on the side of the tire
makes it easier to identify and choose the right
tires.
Tire size
Speed rating
Q = up to 105 mph/160 km/h
T = up to 118 mph/190 km/h
H = up to 131 mph/210 km/h
V = up to 150 mph/240 km/h
W = up to 167 mph/270 km/h
Y = up to 186 mph/300 km/h
Tire Identification Number
Tires with DOT codes meet the guidelines of
the U.S. Department of Transportation.
DOT code:
Tire age
The tire's date of manufacture is indicated on
the sidewall:
DOT...1007 means that the tire was manufac-
tured in the 10th week of 2007.
BMW recommends that you replace all tires –
including the spare – after a maximum of 6 years, even though the tires may have a theo-
retical service life of up to 10 years.
Uniform Tire Quality Grading
Quality grades can be found where applicable
on the tire sidewall between tread shoulder and
maximum section width. For example:
Tread wear 200 Traction AA
Temperature A
DOT Quality Grades
Tread wear
Traction AA A B C
Temperature A B C
All passenger car tires must conform to
Federal Safety Requirements in addition
to these grades.<
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov-
ernment test course.
For example, a tire graded 150 would wear one
and one-half, 1γ, times as well on the govern-
ment course as a tire graded 100. The relative
performance of tires depends upon the actual
conditions of their use, however, and may devi-
ate significantly from the norm due to variations
in driving habits, service practices and differ-
ences in road characteristics and climate.
Traction
The traction grades, from highest to lowest, are
AA, A, B, and C.
Those grades represent the tire's ability to stop
on wet pavement as measured under controlled
conditions on specified government test sur-
faces of asphalt and concrete. A tire marked C
may have poor traction performance.
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor-
nering, hydroplaning, or peak traction charac-
teristics.< e.g.
Nominal width in mm
Aspect ratio in Ξ
Radial tire code
Rim diameter in inches
Load rating,
not for ZR tires
Speed rating,
before R on ZR tires
245/50 R18100 V
e.g.
Manufacturer code
for tire makes
Tire size and tire design
Tire ageDOT xxxx xxx 1007

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ingly trained personnel. If necessary, have the
vehicle towed there.
Tire damage can be extremely dangerous for
vehicle occupants and other road users.<
Run-flat tires*
You will recognize run-flat tires by a circular
symbol containing the letters RSC on the side
of the tire.
The run-flat tires consist of special rims and
tires that are self-supporting to a limited
degree. The tire reinforcement ensures that the
tire retains some residual safety in the event of
pressure drop and driving remains possible to a
restricted degree.
To continue driving with a damaged tire:
>When equipped with Flat Tire Monitor, refer
to Indication of a flat tire on page91.
>When equipped with Tire Pressure Monitor,
refer to Low tire pressure message on
page93.
New wheels and tires
Only have new wheels and tires mounted
by a BMW center or a tire specialist that
works in accordance with BMW guidelines and
uses appropriately trained personnel. If this
work is not carried out properly, there is a dan-
ger of subsequent damage and related safety
hazards.<
Retreaded tires
BMW does not recommend the use of
retreaded tires; otherwise, driving safety
may be reduced. Possible variations in the
design and the age – which could be substantial
– of the tire casing structures can lead to unusu-
ally rapid wear.<
The right wheels and tires
BMW recommends that you use only
wheel and tire combinations that BMW
has tested and approved for your particular
vehicle. Variations in factors such as manufac-
turing tolerances mean that even wheels and
tires with identical official size ratings could
actually have different dimensions than the
approved units – these differences could lead to
body contact, and with it, the risk of severe acci-
dents. If non-approved wheels and tires are
used, BMW cannot evaluate their suitability,
and therefore cannot be held liable for driving
safety.<
You can ask your BMW center for the right
wheel and tire combination.
The correct wheel and tire combination affects
various systems whose function would other-
wise be impaired, such as ABS or DSC.
To maintain good handling and vehicle
response, use only tires of a single tread config-
uration from a single manufacturer. After a flat
tire, always remember to have the original
wheel and tire combination remounted on the
vehicle as soon as possible.
Wheels with electronics for
TPM Tire Pressure Monitor*
When mounting new tires or changing over
from summer to winter tires, or vice versa, only
use wheels with TPM electronics; otherwise the
Tire Pressure Monitor may not be able to detect
a flat tire, refer to page91. Your BMW center
will be glad to advise you.

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Under the hood
Never attempt to perform any service or
repair operations on your vehicle without
the required, professional technical training.
If you are unfamiliar with the regulations to be
observed, only have work on your vehicle car-
ried out by a BMW center or a repair shop that
works in accordance with BMW guidelines and
uses appropriately trained personnel. If this
work is not carried out properly, there is a dan-
ger of subsequent damage and related safety
hazards.<
Hood
Unlocking
Pull the lever located under the left side of the
instrument panel.
Opening
Pull the release handle and open the hood.
Closing
Close the hood with force. It must be clearly
heard to engage.
Take the same precautions that apply to
all closing operations by ensuring that the
hood's travel range is clear and unobstructed
before allowing the hood to fall into position.
If you see any signs that the hood is not com-
pletely closed while you are driving your vehicle,
you should stop at once and close it securely.<

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Possible displays
>"Update of engine oil level in process".
>"Engine oil level O.K.".
>"Oil level at minimum! Add 1 quart engine
oil": add a maximum of 1 quart/1 liter of
engine oil at the earliest opportunity, refer
to Adding engine oil.
>"Oil level under min.! Add 1 quart engine
oil": add a maximum of 1 quart/1 liter of
engine oil at the earliest opportunity, refer
to Adding engine oil.
>"Engine oil level too high".
Have vehicle checked immediately;
otherwise, overfilled oil can lead to
engine damage.<
>"No measurement possible at this time".
Adding engine oil
Do not add oil until a Check Control message
appears.
Add oil within the next 125 miles/200 km;
otherwise, the engine could be dam-
aged.<
Keep oil, grease, etc. out of reach of chil-
dren and heed warnings on the contain-
ers to avoid health risks.<
Oil changing
Only have an oil change carried out by a BMW
center or a repair shop that works in accordance
with BMW guidelines and uses appropriately
trained personnel.
Approved engine oils
The quality of the engine oil selected has critical
significance for the operation and service life of
an engine. BMW continuously approves spe-
cific engine oils after confirming their suitability
for use in its vehicles with extensive testing.
Use only approved BMW High Performance
Synthetic Oil.
If BMW High Performance Synthetic Oil is
unavailable, you can add small quantities of
other synthetic oils between oil changes. Use
only oils of the specification API SH or higher.
Your BMW center will be happy to answer
detailed questions on BMW High Perfor-
mance Synthetic Oil or approved synthetic
oils.<
You can also call BMW of North America at
1-800-831-1117 or visit the website at
www.bmwusa.com to obtain this information.
Never use oil additives as they can dam-
age your engine under some circum-
stances.<
Viscosity grades
The viscosity is a measure of the thickness of
the oil and is specified in SAE grades.
The choice of the right SAE grade is based on
the climatic conditions in the region in which
you normally drive your BMW.
Approved oils belong to the SAE grades
5W-40 and 5W-30.<
These oils can be used for driving at all outside
temperatures.