Emission Control Maintenance
Schedule
The maintenance schedule as shown is required for the proper functioning of the emission control
systems for optimum vehicle performance and fuel economy.
Abbreviations:
I - Inspect
R - Replace part(s) and/or fluid listed
Basic Engine
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . .
Engine oil filter. . . . . . . . . . . . . . . . . . . . . .
Fuel System
Air filter . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition System
Spark plugs . . . . . . . . . . . . . . . . . . . . . . .
Emission Control Components
Oxygen sensor . . . . . . . . . . . . . . . . . . . . .
X3 3.0si
Oil
Service
Inspection
I
Oil
Service
Inspection
II
R
R
R
R
R
R
R
R
R
Replace at intervals of
100,000 miles
Replace at intervals of
120,000 miles
(150,000 miles if the
vehicle is eligible for
the California
Emissions Warranty)
Continue sequence of
Oil Services and
Inspections per Service
Interval Indicator.
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.
The mileage interval varies according to individual driving conditions and is determined by the service
interval indicator.
8
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