Service Interval Reset

When a vehicle comes in for an oil service or inspection (I or II), the service indicator must be reset. This is important to assure consistent service intervals. Depending upon the production date of the vehicle, there are a few methods to reset the service intervals.

On vehicles with a diagnosis socket in the engine compartment, the service interval indicator is reset with the aid of the SIA reset tool (62 1 110). On vehicles where this diagnosis socket is no longer installed in the engine compartment (2001 models an up), the service interval indicator (SIA) is reset according to a defined procedure with the left-hand button in the instrument cluster (trip odometer reset button).

Although the 20-pin underhood diagnostic connector was omitted in 2001 vehicles, the "Reset Mode" in the instrument cluster was possible from 9/99.

In addition to the reset mode in the cluster, the SIA could be reset using the diagnostic equipment (DISplus/GT-1).