Bmw 2006 bmw 325i Bedienungsanleitung PDF herunterladen (Seite 187)

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Index Data Technology Repairs Car care Controls Overview

Self-diagnostics

All of the important electrical and elec-

tronic systems in the vehicle are tested

regularly and automatically – the driver

does not have to perform any extra

operations or adjustments.

The indicator lamps also come on

briefly after the ignition has been turned

on.

While you are driving, the functional

status of the actuator motors (for the

windshield wipers, power windows,

seats, sliding/tilt sunroof, etc.) is

constantly analyzed by current

measurements in their relays.

460de177

In the same manner, the electrical

resistance of the airbag ignition genera-

tors and all of the remaining airbag

components is measured at all times.

Any fault in this system would be

detected immediately by a current fluc-

tuation that would necessarily accom-

pany it. The fault would be indicated

immediately by the airbag warning

lamp.

Even after you shut off the engine, the

overall functional status of your vehicle

is monitored. For example, all of the

flaps of the heating and ventilation

system travel to the nearest limit posi-

tion. This ensures that the defrost func-

tion is always available even if a

malfunction in the air conditioner

system/automatic climate control

should occur while the vehicle is

parked overnight, for instance.

A calibration cycle runs every tenth time

the engine is shut off. During this cycle,

the actuator motors of all the heating

and ventilation flaps travel to their limit

stops in both directions. The limit posi-

tions and the return travel paths are

checked in this manner in order to

ensure that appropriate adjustments for

the operating elements can be made at

any time.

You will hear the sounds of the air flaps

as the air conditioning system/auto-

matic climate control carry out their

self-diagnostic functions after the igni-

tion has been turned off. All of the other

self-diagnostics functions operate

silently in the background.

Any possible faults detected during

these self-diagnostics can be read out

by your BMW center during the next

regularly-scheduled maintenance and

corrected with a minimum of time.

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