BMW ONBOARD COMPUTER User Manual download pdf (Page 15)

E46 Driver information

Principle of Operation

Starting with the E46 a new method for displaying

the Service Interval is used. Colored LEDs are no

longer used to display the amount of time until the

next service or inspection is due.

With the SIA IV system, the actual mileage remain-

ing until the next service will be displayed for five

seconds when the ignition is first switched on.

The text “OIL SERVICE” or “INSPECTION” will also illuminate to show which service is due.

A minus symbol( - ) before the mileage display indicates that a service is past due.

The calculation process for determining the service interval is similar to SIA III. A set

volume is stored in the Cluster. The processor receives the ti signal from DME as the vehi-

cle is driven. The Cluster also receives the vehicle speed signal from the ASC/DSC control

module.

Based on the amount of fuel consumed and the distance traveled, the processor calculates

the distance remaining to the next service.

Workshop Hints

Reset of the SIA can be done using special tool 62 1 110 if the vehicle is equipped with the

20 pin under-hood diagnosis connector.

On 2001 MY vehicles onward without the diagnostic connector in the engine compartment,

the use of the S.I reset tool is not possible. The Service Indicator may be reset using the

Reset Mode in the Instrument Cluster or with Diagnosis.

OILSERVICE

15000

Miles

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 36 37

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BMW ONBOARD COMPUTER User Manual Page 15