2008 BMW X5 brake sensor

Oil changes performed outside the recom-
mended maintenance intervals as indicated
by the Service Interval Indicator
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 interval as indicated by the Condi-
tion Based Service (CBS) 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
temperature.
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
 Brake fluid
 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, brought up to date by your BMW
SAV center. Also see the section on battery 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.
Control Display screen contents
The current Status of Service items determined
by the CBS are shown in the Control Display.
You can also view additional information on the
service and maintenance requirements.
1. Open the start menu.
2. Press the controller to select the i-menu.
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For the most current list of synthetic oils, please
contact your SAV 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 per-
formed at the mileage/time stated (time intervals
begin from the vehicle’s 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.
 The engine coolant has a lifetime rating and
does not need to be changed except for sys-
tem repairs.
For your convenience, you may also wish to
have your BMW SAV center perform any neces-
sary operations to fulfill any state inspection
requirements in your area concurrent with the
maintenance elements specified above during
other repairs. Should you request more fre-
quent maintenance service, the cost of these
services will not be covered by the Mainte-
nance 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 SAV
center has made a substantial investment in
unique BMW special service tools to enable
BMW factory trained service technicians to per-
form quality 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 SAV center.
Maintenance summary
The 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.
Standard operations
Maintenance work:
 Brief diagnostic test
 Verify Check Control messages.
 Check indicator and warning lights.
 Reset CBS display.
 Inspect tires, check tire pressure and reset
Tire Pressure Monitor.
Engine oil
Maintenance work:
 Change the engine oil and oil filter. We rec-
ommend BMW High Performance 5W-30
Synthetic Oil P/N 07 51 0 017 866.
 Replace ventilation microfilter.
 After every 3rd engine oil change: Intake air
cleaner: replace air filter element (reduce
replacement interval in dusty operating
conditions).
 Parking brake: Check function, burnish shoes.
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