BMW 745Li 2005 E66 Owner's Manual

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745i, 745Li
760i, 760Li
Tire sizePressure specifications in psi/kPa
All pressure specifications in
the table are indicated in psi/
kilopascal with cold tires.
Cold = ambient temperature
245/50 R 18 100 V M+S
245/55 R 17 102 W
245/50 R 18 100 W
245/55 R 17 102 Q M+S
245/50 R 18 100 Q M+S32/220 35/240 35/240 42/290
Front: 245/45 R 19 98 W 32/220 - 35/240 -
Rear: 275/40 R 19 101 W - 35/240 - 42/290
Front: 245/40 R 20 95 Y 32/220 - 35/240
Rear: 275/35 R 20 98 Y - 35/240 - 42/290
More details on the permitted load and weights can be found on page216.
Tire sizePressure specifications in psi/kPa
All pressure specifications in
the table are indicated in psi/
kilopascal with cold tires.
Cold = ambient temperature
245/50 R 18 100 V M+S
245/50 R 18 100 W
245/50 R 18 100 Q M+S35/240 38/260 38/260 42/290
Front: 245/45 R 19 98 Y 35/240 - 38/260 -
Rear: 275/40 R 19 101 Y - 38/260 - 42/290
Front: 245/40 R 20 95 Y 35/240 - 38/260
Rear: 275/35 R 20 98 Y - 38/260 - 42/290
More details on the permitted load and weights can be found on page216.

Wheels and tires
190
Tire identification marks
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 Transport.
DOT code:
Tire age
The tire's date of manufacture is indicated
on the sidewall:
DOT ... 0904 indicates that the tire was
manufactured in the 9th week of 2004.
BMW recommends that you replace all
tires – including the spare – after a maxi-mum of 6 years, even though the tires may
have a theoretical service life of up to 10
years.
Uniform Tire Quality Grading
Quality grades can be found where appli-
cable on the tire sidewall between tread
shoulder and maximum section width.
For example:
Treadwear 200 Traction AA
Temperature A
DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
All passenger car tires must conform
to Federal Safety Requirements in
addition to these grades.<
Treadwear
The treadwear grade is a comparative rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course.
For example, a tire graded 150 would wear
one and one-half, 1γ, times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly from
the norm due to variations in driving habits,
service practices and differences 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 govern-
ment test surfaces 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 brak-
ing traction tests, and does not include
acceleration, cornering, hydroplaning, or
peak traction characteristics.< e.g.
Nominal width
in mm
Cross-sectional
relationship in Ξ
Radial tire code
Rim diameter in inches
Load rating,
not for ZR tires
Speed rating,
before R on ZR tires
245/45 R19104H
e.g.
Manufacturer code
for tire makes
Tire size and tire design
Tire ageDOT xxxx xxx 0904

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Temperature
The temperature grades are A, the highest,
B and C, representing the tire's resistance
to the generation of heat and its ability to
dissipate heat when tested under con-
trolled conditions on a specified indoor lab-
oratory test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudden tire failure. The grade C
corresponds to a level of performance
which all passenger car tires must meet
under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A repre-
sent higher levels of performance on the
laboratory test wheel than the minimum
required by law.
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, underinflation, or excessive load-
ing, either separately or in combination,
can cause heat buildup and possible tire
failure.<
RSC: run-flat tires
You will recognize run-flat tires by a circular
symbol containing the letters RSC on the
side of the tire, refer to page192.
M+S
Winter and all-season tires.
These have better winter properties than
summer tires.
Tire condition
Inspect your tires frequently for treadwear,
signs of damage and for foreign objects
lodged in the tread. Check the tread depth.
Tire tread
The tread depth should not drop below
εin/3 mm, although, for example, Euro-
pean legislation only specifies a minimum
tread depth of κ/ΦΚin/1.6 mm. At tread
depths below εin/3 mm, there is an
increased risk of high-speed hydroplaning, even when only small amounts of water are
present on the road surface.
As winter tires display a noticeable loss in
their ability to cope with cold-weather driv-
ing conditions once the tread wears to
below κ/Κin/4 mm, to ensure continued
safety you should always have such tires
replaced.
Wear indicators at the tread-groove base,
refer to arrow, are distributed over the tire's
circumference and are marked on the side
of the tire with TWI – Tread Wear Indicator.
These indicators signal at a tread depth of
κ/ΦΚin/1.6 mm that the legally permitted
wear limit has been reached.
Wheel/tire damage
Due to low-profile tires, please note
that wheels, tires and suspension
parts are more susceptible to road hazard
and consequential damages.
Unusual vibrations encountered during
normal vehicle operation can indicate tire
failure or some other vehicle defect. This
can, for example, be caused by driving over
curbs. These kinds of problems may also
be signaled by other changes in vehicle
response, such as a strong tendency to pull
to the left or right.
In these cases reduce speed immediately.
Drive carefully to the next BMW center or
tire dealer, or have the vehicle towed to one
of these locations if necessary.
Tire damage, extending to sudden and
complete loss of pressure in extreme
cases, can pose a potentially lethal safety
hazard for the vehicle's occupants and
other road users alike.<

Wheels and tires
192
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 self-supporting
tires and special rims. The tire reinforce-
ment ensures that the tire retains some
residual safety in the event of pressure
drop and driving remains possible to a
restricted degree.
Continuing driving with a damaged
tire
Driving on run-flat tires can continue,
depending on the vehicle load and the
severity of the tire damage, at a maximum
speed of 50 mph/80 km/h.
In the case of complete inflation pressure
loss, 0 psi/kPa, or obvious tire damage,
you can estimate the possible distance for
continued driving on the basis of the fol-
lowing guide values:
>With low load:
1 to 2 persons without luggage:
Approx. 155 miles/250 km
>With medium load:
2 persons, luggage compartment full, or
4 persons without luggage:
Approx. 90 miles/150 km
>With full load:
More than 4 persons, luggage compart-
ment full:
Approx. 30 miles/50 km.
Drive reservedly and do not exceed a
speed of 50 mph/80 km/h. With infla-
tion pressure loss, the driving characteris-
tics change, for example reduced track
stability on braking, extended braking dis-tance, and altered self-steering character-
istics.
For safety reasons BMW recommends that
you do not have damaged run-flat tires
repaired, and that you go to a BMW center
in this case.<
New wheels and tires
Only have new wheels and tires
mounted by a specialist. If this work is
not carried out properly, there is a danger
of subsequent damage and related safety
hazards.<
You can ask your BMW center for the right
wheel and tire combination. Have the
wheel and tire assemblies balanced every
time either a wheel or a tire is replaced.
The correct wheel and tire combination
affects various systems whose function
would otherwise be impaired, e.g. ABS
or DSC.
BMW does not recommend the use of
retread tires, as otherwise driving
safety may be reduced. Possible variations
in the design and the age – which could be
substantial – of the carcasses can lead to
unusually 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 manufacturing 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 accidents. If non-
approved wheels and tires are used, BMW
cannot evaluate their suitability, and there-
fore cannot be held liable for driving
safety.<
To maintain good handling and vehicle
response, use only tires of a single tread
configuration from a single manufacturer.
After a flat tire, always remember to have
the original wheel and tire combination

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remounted on the vehicle as soon as pos-
sible.
Recommended tire sizes and brands
BMW tests certain tire brands for each tire
size, classifies them as road-safe and
approves them. You can find out about
these at specialized dealers or at your
BMW center. Observe any country-specific
regulations, e.g. on making a correspond-
ing entry in the vehicle documents.
The factory-mounted tires have been spe-
cially selected to provide optimized perfor-
mance when installed on your vehicle; if
properly cared for, they will provide a com-
bination of safety and excellent ride com-
fort.
Run-flat tires
If your BMW is equipped with run-flat tires,
refer to Run-flat tires, only use these tires,
as in the event of a breakdown there is no
spare tire available.
Special characteristics of winter
tires
BMW recommends winter tires for use in
cold winter driving conditions. Although so-
called all-season M+S tires provide better
winter traction than summer tires, they
generally fail to provide the same levels of
cold-weather performance as winter tires.
Run-flat tires
When mounting new tires or switching from
summer to winter tires, or vice versa, use
run-flat tires, as in the event of a break-
down there is no spare wheel available.
Your BMW center will be glad to advise
you.
Observing speed ratings
Never exceed the maximum speed
for which the winter tires are rated.
Unprofessional attempts by laymen to ser-
vice tires can lead to damage and acci-
dents. Have this work performed by skilled
professionals only. The technicians at your
BMW center will be glad to assist you with the required professional knowledge and
specialized equipment.<
Storage
Always store wheels and tires in a cool, dry
pl ace w it h as l itt le exp osu r e t o li gh t a s po s-
sible. Always protect tires against all con-
tact with oil, grease and fuels.
Do not exceed the maximum tire inflation
pressure indicated on the side wall of the
tire.
Snow chains*
BMW only tests certain snow chains, clas-
sifies them as road-safe and approves
them. Consult your BMW center for more
information. BMW recommends only using
these approved, narrow-link snow chains.
Use on summer or winter tires is only per-
missible in pairs on the rear wheels.
Observe the manufacturer's instructions
when installing snow chains.
Do not exceed a vehicle speed of 30 mph/
50 km/h with the chains mounted.
After mounting snow chains, do not
activate the Flat Tire Monitor.
When you are driving with snow chains, it
can be beneficial to switch off DSC briefly,
refer to page94.<

Under the hood
194
Under the hood
Never attempt to perform any service
or repair operations on your vehicle
without the required, professional technical
training. If you are not familiar with the reg-
u l a t i o n s t o b e o b s e r v e d , o n l y h a v e w o r k o n
your vehicle carried out by a BMW center
or a workshop that uses personnel trained
in accordance with BMW requirements. If
this work is not carried out properly, there
is a danger 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 from a height of approx.
16 in/40 cm with momentum. It must be
clearly heard to engage.
Observe 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
completely closed while you are driving
your vehicle, you should stop at once and
close it securely.<

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Engine compartment
1Engine oil dip stick, refer to Checking oil
level
2Brake fluid reservoir, located beneath
the microfilter cover197
3Reservoir for windshield and headlamp
washer system73
4Engine oil filler neck196
5Vehicle identification number
6Coolant expansion tank196
7Auxiliary terminal for jump-starting210
Engine oil
Checking oil level
1.Park the vehicle on a level surface
2.Switch the engine off after it has
reached normal operating temperature
3.After approx. 5 minutes, pull the dip-
stick out and wipe it off with a clean lint-
free cloth, paper towel, or similar mate-
rial
4.Carefully push the dipstick all the way
into the guide tube and pull it out again 5.The oil should extend to between the
two marks on the dipstick.
As is the case with fuel economy, the rate
at which the engine uses oil is strongly
influenced by driving style and operating
conditions.
The oil quantity between the two marks
of the dipstick is approx. 1.65 US quarts/

Under the hood
196 1.5 liter. Do not fill beyond the upper mark
on the dipstick. Excess oil can damage the
engine.
Adding engine oil
Wait until the level has dropped to just
above the lower mark or a message
appears in the Check Control before add-
ing oil.
Store oil, grease etc., well out of the
reach of children; always observe all
warning labels on the containers.<
Specified engine oils
The quality of the engine oil selected has
critical significance for the operation and
service life of an engine. BMW approves
only specific oils after confirming their suit-
ability for use in its vehicles with extensive
testing.
Use only approved BMW High Perfor-
mance Synthetic Oil.
If you are unable to obtain BMW High Per-
formance Synthetic Oil, you can add small
amounts of another synthetic oil between
oil changes. Use only oils with the API SH
specification or higher.
Ask your BMW center for details con-
cerning the specific BMW High Per-
formance Synthetic Oil or synthetic oils
which have been approved.<
You can also call BMW of North America
at 1-800-831-1117 or visit this website:
www.bmwusa.com to obtain this informa-
tion.
BMW engines are designed to oper-
ate without additives, and their use
could even lead to damage in some
cases.<
Viscosity ratings
Viscosity is the oil flow rating as defined in
SAE classes.
The selection of the correct SAE class
depends on the climatic conditions in the
area where you typically drive your BMW.
Approved oils are in SAE classes
5W-40 and 5W-30.<
These oils may be used for driving in all
ambient temperatures.
Coolant
Do not add coolant to the cooling sys-
tem when the engine is hot. Escaping
coolant can cause burns.<
Coolant consists of water and the addition
of antifreeze and anticorrosion agent. Not
all commercially available additives are
suitable for your BMW. Ask your BMW cen-
ter for suitable additives.
Only use suitable additives, as other-
wise engine damage may result. The
additives present a health hazard; observe
the instructions on the containers.<
Always observe all applicable rules
and regulations for environmental
protection when disposing of used anti-
freeze and anticorrosion agents.<
Checking coolant level
1.The engine must be at ambient temper-
ature
2.Turn the cap of the expansion tank
counterclockwise to allow any accumu-
lated pressure to escape, then continue
turning to open
3.The coolant level is correct when the
coolant extends to between the MIN
and MAX marks on the filler neck, refer
to the diagram adjacent to the filler neck

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4.If the coolant is low, slowly add coolant
up to the specified level – do not overfill.
5.Twist closed the cap and tighten firmly
6.Have the reason for the coolant loss
eliminated as soon as possible.
Brake system
Malfunction
Brake fluid
The warning lamp lights up and a
message appears in the Check
Control: stop immediately.
The brake fluid in the reservoir has fallen to
below the minimum level. At the same time,
a considerably longer brake pedal travel
may be noticeable. Have the system
checked immediately.
Warning lamp on Canadian models.
During continued driving increased
brake pedal travel may be necessary,
and considerably longer braking distances
may result. Please adapt your driving style
accordingly.<
Brake pads
For messages and indicator lamps in the
Info Display, refer to page83.
For your own safety: use only brake
pads that BMW has released for your
particular vehicle model. As BMW cannot
assess the suitability of other brake pads
for use on your vehicle, we are unable to assume continued responsibility for the
vehicle's operating safety if non-approved
pads are installed.<

Maintenance
198
Maintenance
The BMW Maintenance
System
The BMW Maintenance System serves to
retain the operating and road safety of your
BMW. The service schedule also includes
operations related to the vehicle's comfort
and convenience features, such as
replacement of the filters for the inside air.
The aim is to optimize maintenance with
regard to reducing the cost of running the
vehicle.
Should the day come when you decide to
sell your BMW, you will find that a complete
dealer service history is an asset of inesti-
mable value.
CBS Condition Based Service
Sensors and special algorithms take the
different driving conditions of your BMW
into account. As a result, Condition Based
Service determines the current and future
maintenance requirements. By letting you
define a service and maintenance regimen
that reflects your own individual require-
ments, the system forms the basis for trou-
ble-free driving.
The service requirement display, refer to
page82, shows you the times or distances
remaining until the deadlines for selected
service and maintenance procedures, as
well as legally-mandated inspections:
>Engine oil
>Brakes, separate for front and rear
>Microfilter/activated-charcoal filter >Brake fluid
>Spark plugs
>Vehicle check
>Coolant
>Legally prescribed inspections depend-
ing on national regulations.
Your vehicle stores this information contin-
uously in the ignition key while the vehicle
is being driven. After accessing the data
stored in the vehicle key, your BMW service
advisor is able to suggest precisely the
right array of service procedures for your
own individual vehicle. You should there-
fore hand over to the BMW service advisor
the key you last used to drive when you
take your vehicle for service.
Storage periods with the battery dis-
connected are not taken into account
by the CBS maintenance system. Have the
time-dependent service and maintenance
operations, such as brake fluid and cool-
ant, and if necessary engine oil and the
micro/activated charcoal filter, updated by
a BMW center.<
Service and Warranty Information
Booklet for US models and
Warranty and Service Guide Booklet
for Canadian models
Additional information on required service
and maintenance operations is contained
in the Service and Warranty Information
Booklet for US models and Warranty and
Service Guide Booklet for Canadian mod-
els.
BMW recommends having mainte-
nance and repairs carried out by your
BMW center.
Make sure that the maintenance operations
are confirmed in the Service and Warranty
Information Booklet for US models and
Warranty and Service Guide Booklet for
Canadian models. These entries serve as
proof of the regular maintenance per-
formed on your BMW.<