BMW 745i Sedan Technical Information download pdf (Page 20)

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 100,000 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

vehicle 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) slide battery switch to “Off” position. Refer

to “Battery Switch” in vehicle owner’s

manual.

b) consider using a proper trickle charger,

following the charger manufacturer’s

instructions, to maintain the battery’s state

of charge; or

c) 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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BMW 745i Sedan Technical Information Page 20

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