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 possibly also the engine oil
and microfilter, brought up to date by your BMW
center. Also see the section on battery care on
page 17 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.
For certain maintenance operations, you can
view the respective distance remaining or due
date individually in the instrument cluster.
1. Push button 1 in the turn indicator lever up
or down repeatedly until the appropriate
symbol appears in the display, accompanied
by the words “SERVICE-INFO”.
2. Press button 2.
3. Use button 1 to scroll through the individual service items.
3
Vehicle Check
Maintenance work:
Check operation of horn, headlight flasher
and hazard warning flashers.
Check instrument and control lighting and
heater/air-conditioning blower.
Check lighting system: turn signals, back-up,
license plate, interior (incl. map, reading
lights), glovebox, flashlight, luggage area
lights.
Safety belts: Check condition and function.
Check windshield wiper and washer jet
positions.
Body: Check for corrosion (except cavities).
Tires: Check tread depth, wear pattern, outer
condition, inflation pressure. If necessary, cor-
rect pressure.
Reset Tire Pressure Monitor.
Battery: Check state of charge (magic eye)
and charge if required.
Power steering reservoir: Check fluid level.
Visually inspect all SRS airbag units for torn
covers, obvious damage or attachment of
stickers.
Rear-view mirrors
Coolant: Check fluid level and concentration.
Windshield washer and intensive cleaning
system: Check protection level, fluid level, top
if necessary.
Brake system connections and lines: Check
for leaks, damage and correct positioning.
Underbody, incl. all visible parts (i.e. transmis-
sion, rear axle, fuel lines, exhaust system):
Check for damage, leaks and corrosion.
Steering components: Check for clearance,
leaks, damage and wear.
Final Inspection: Road test with check of
– Brakes, including burnishing of parking
brake pads
– Steering
– Shock absorbers (visual)
– Transmission
Brake fluid
Maintenance work:
Replace brake fluid.
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 (328i
versions) 100,000 miles
Spark plugs (335i
versions) 45,000 miles
Emission Control
Components
Oxygen sensor (except
SULEV) 120,000 miles
Oxygen sensor: SULEV
(PZEV) 150,000 miles
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
Booklet. 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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