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.
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.
Battery Care
If your car is driven only for short distances of
less than 10 miles over a prolonged period of
time, without an occasional drive at highway
speeds, the engine’s charging system will not
maintain the battery. Insufficient use of the vehi-
cle could result in short term starting problems
and in the long term could damage the battery.
In case the car is not operated for several weeks
it is advisable to:
a. consider using a proper trickle charger, follow-
ing the charger manufacturer’s instructions, to
maintain the battery’s state of charge; or
b. consult your BMW center regarding battery removal. Once removed, the battery must be
charged and stored in a cool, dry place where
it can be protected from freezing. If the battery
will be stored for over 3 months, it must be
recharged every 3 months, or else it will
become damaged and useless.
Please consult with your BMW center for further
guidance and information.
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