Workshop Hints

Workshop Hints

When a service is performed the Service Interval Indicator must be reset. For vehicles equipped with SIA II there is only one method:
- Reset using special tool

The SIA is reset using the SIA reset function, the tool creates a pulse width modulated signal on the DIASIARE lead (diagnosis-service-interval-reset-lead), pin 7 of the diagnostic connector.

Reset procedure using Special Tool







- Insert special tool 62 1 110 into the diagnostic connector. If the vehicle uses a 15 pin diagnosis connector use adapter 61 2 060.
- Turn the ignition to position 2
- Push and hold the the button to reset the applicable service: Oil Service or Inspection. Button 1 or 2 respectively.
- The reset tool has three LEDs below the reset buttons. The green LED(4) in the center comes on whenever any service reset is selected to indicate that communication is OK. The other two LEDs (3 and 5) indicate that the proper reset (Oil Service: yellow or Inspection: red) is being carried out.

Instrument Cluster Replacement
If the Instrument Cluster is replaced on early vehicles the SIA data is lost. Redundant data storage is available for the following models:
- E31-Data stored in EKM and LKM
- E38-Data stored in IKE and LCM
- E36-(1997-1999), E36/7- Data stored in cluster EPROM and Coding plug.

If a Cluster is replaced on a vehicle with redundant data storage, the transfer of the SIA data (along with total miles) is possible.

Diagnosis
Diagnosis using the Diagnosis program is possible on vehicles whose clusters are on the diagnostic link: E32, E34, E36 (except E36/5, /7 up to 9/98) and E38.

The tools available to diagnose the SIA system in the Diagnosis Program are: