BMW X5 Technical Information download pdf (Page 6)

Maintenance System

The BMW Maintenance System has been

devised with the following objectives: to maximize

vehicle safety, reliability, and resale value by

minimizing breakdowns resulting from wear, and

minimizing cost and inconvenience by computing

maintenance intervals based upon the specific

manner in which each individual vehicle is driven.

Maintenance intervals on motor vehicles

have conventionally been specified based

upon accumulated mileage. However, the

type of driving conditions has a major

influence on routine maintenance require-

ments; 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

frequent 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 Service

Interval Indicator System which computes the

actual optimum maintenance requirements based

not only upon the accumulated mileage, but

taking into account important factors such as

engine coolant temperatures, high or low engine

speeds, short or long trip driving, and number of

vehicle starts. The maintenance interval may

therefore be maximized with considerable

savings to owners of vehicles subjected to light

duty.

(Typical Display) 32 88 02 30

The Service Indicator consists of five green,

one yellow and one red Iight-emitting-diodes

(LEDs) and the inscriptions “OIL SERVICE”

and “INSPECTION”.

Whenever the ignition is switched on, up to

five green LEDs will light up, depending on

the amount of use the vehicle has had since

the last maintenance service and your driving

style. As the number of illuminated green LEDs

decreases, this is an indication that the next

service is almost due and helps you to make

the necessary arrangements on a timely basis.

The green LEDs disappear when the engine

is started.

Notification that maintenance is required is

indicated with the illumination of the yellow

LED and accompanying inscription. These will

remain illuminated with the ignition on.

If the maintenance interval has been exceeded,

the red LED will light up in addition to the

yellow one to remind you of the urgent need for

servicing. In the interests of road safety and

reliability, you should avoid driving your BMW

when the red LED signal is showing, and have

the essential maintenance work performed without

delay.

After each maintenance is performed the

service indicator is reset in order to compute

the next service interval.

The green LEDs which then light up with the

ignition show you the interval before the next

maintenance is due.

If the service indicator displays an illogical

reading, for instance the green and red LEDs

at the same time, or if there is no display,

consult an authorized BMW SAV center.

If the speedometer, tachometer or coolant

temperature gauge should develop a fault, the

service indicator will probably cease to

operate correctly as well, since it depends on

correct speed, distance and temperature

readings. The fault must be located and

rectified by an authorized BMW SAV center.

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