2008 BMW 7 SERIES brake sensor

Oil changes performed outside the recom-
mended maintenance intervals as indicated
by the Service Interval Display
Maintenance Upgrade Option
Please contact your authorized BMW center for
information and availability on the optional Main-
tenance Program Upgrade for coverage up to
6 years and 100,000 miles
Intervals
Time intervals should be followed using the
maintenance intervals as indicated by the BMW
Service Interval Display.
Maintenance intervals on motor vehicles have
conventionally been specified based upon accu-
mulated mileage. However, driving conditions
have a major influence on routine maintenance
requirements; distance traveled is only one of
the significant factors. A vehicle driven for
50,000 miles of short trips in the city with
numerous cold starts, prolonged periods of
idling, stop-and-go driving, and high engine
speeds during acceleration requires more fre-
quent maintenance intervals than a vehicle
driven for 50,000 miles for long distances at low
engine speeds primarily at operating tempera-
ture.
The advanced technologies at BMW have led to
the development of the unique BMW Condition
Based Service (CBS) system which computes
the actual optimum maintenance requirements
based not only upon the accumulated mileage,
but taking into account important factors such
as high or low engine speeds, short or long trip
driving, and condition of the engine oil and
brake pads.
Condition Based Service (CBS)
CBS is a further development of the Service
Interval Indicator System. Sensors and sophisti-
cated algorithms take even more detailed
account of the various conditions of vehicle use. The remaining times for selected maintenance
tasks as well as any legally prescribed dates are
displayed to you individually:

Engine oil
 Brakes - front and rear separately
 Microfilter
 Brake fluid
 Spark plugs
 Vehicle check
 Required State Inspection(s)
CBS thus determines the current and future
maintenance requirements. This data can also
be read from the vehicle key by your BMW Ser-
vice Advisor and used to propose the optimum
scope of maintenance.
Disconnecting the battery during periods
of long-term storage will interrupt the
calculation of time-based services. Have all
items requiring time-based maintenance, such
as brake fluid and coolant, and possibly also the
engine oil and microfilter, brought up to date by
your BMW center. Also see the section on bat-
tery care on page 15 of this statement.
Service Interval Display
Info Display screen contents
The distance remaining until your next service
briefly appears when you switch on the ignition.
The Info Display immediately switches to
its compute mode when you press one of
the two buttons in the turn signal indicator
lever.
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All 2008 model year 7 Series vehicles are facto-
ry-filled with BMW High Performance Synthetic
oils. At the time of the printing of this booklet,
the following oils are strongly recommended
and approved by BMW:
 BMW High Performance 5W-30 Synthetic Oil
(BMW part number 07 51 0 017 866)
 Mobil 1 5W-30
 Mobil 1 5W-40
BMW is evaluating various synthetic oils for
inclusion in our list of recommended engine oils.
For the most current list of synthetic oils, please
contact your BMW center, or call BMW of North
America, LLC at 1 800 831-1117. You can also
obtain this information from our website,
www.bmwusa.com/.
BMW recommends that you check your engine
oil level whenever you add fuel to your vehicle. If
you need to add oil between oil changes and
are unable to obtain BMW High Performance
Synthetic Oil, Mobil 1 or another special oil on
the list, use a synthetic oil with an API rating of
SH or higher.
The following maintenance elements must be
performed at the mileage/time stated (time
intervals begin from the vehicles production
date):
 Brake Fluid Service: Change brake fluid every
two years, or when specified by CBS.
 Oxygen Sensor Service: The oxygen sensor
deteriorates strictly on a mileage basis and
must therefore be replaced every
120,000 miles to maximize vehicle fuel econ-
omy and minimize exhaust pollution.
 Spark Plug Service: Replace at
100,000 miles, or when specified by CBS.
 The engine coolant has a lifetime rating and
does not need to be changed. For your convenience, you may also wish to
have your BMW center perform any necessary
operations to fulfill any state inspection require-
ments in your area concurrent with the mainte-
nance elements specified above during other
repairs.
Should you request more frequent
maintenance service, the cost of these ser-
vices will not be covered by the Maintenance
Program.
BMW has applied the most modern technologi-
cal advances not only to the design and produc-
tion of your vehicle, but also to computing of the
optimum maintenance interval for your type of
operations and driving style. Your BMW center
has made a substantial investment in unique
BMW special service tools to enable BMW fac-
tory trained service technicians to perform qual-
ity repairs on your BMW in minimal time. Your
service technician looks forward to serving your
every service need and to help maximize your
satisfaction with your BMW, its longevity, and
resale value.
Quality Certification I
For a detailed list of items inspected, refer to the
Quality Certification I form provided to the
Owner at time of delivery. A copy of the form is
on file at the selling BMW center.
Maintenance summary
The Condition Based Service (CBS) system will
determine the requirement for performance of
the maintenance services described on this and
the following page. These services may be
required either individually or in conjunction with
other maintenance services.
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Brake fluid
Maintenance work:
 Replace brake fluid.
Spark plugs
Maintenance work:
 Replace spark plugs at intervals of
100,000 miles.
Automatic Transmission
Maintenance work:
 Replace ATF at intervals of 100,000 miles.
Emission Control Maintenance
Schedule
The maintenance schedule as shown is required
for the proper functioning of the emission con-
trol systems for optimum vehicle performance
and fuel economy.
Basic Engine
Engine oil As specified by CBS
Engine oil filter As specified by CBS
Fuel System
Air filter As specified by CBS
Ignition System
Spark plugs As specified by CBS
Emission Control
Components
Oxygen sensor Replace at intervals
of 120,000 miles
Oxygen Sensor Service: The oxygen sensor
deteriorates strictly on a mileage basis and must
therefore be replaced to maximize vehicle fuel
economy and minimize exhaust pollution.
Evidence of Maintenance Work
This BMW Service and Warranty Information
Booklet should be presented to your BMW cen-
ter when maintenance is required. Make sure
that confirmation of maintenance work is always
entered in this Service and Warranty Information
Statement. You may need this for any warranty
claims that become necessary, and later on as
evidence that your car has been given the cor-
rect and regular maintenance that justifies its
resale or trade-in value.
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