Instruments - Service Interval Coding Limits
SI B62 06 99
Instruments
February 2011
Technical Service
This Service Information bulletin supersedes SI B62 06 99 dated January 2000.
[NEW] designates changes to this revision
SUBJECT
Service Interval Coding Limits (SIA III) for 2000 Model Year Vehicles
MODEL
All, except M Roadster and Coupe
SITUATION
The SIA III method of calculating service intervals has been progressively introduced and now applies to all BMW models except the M Roadster
and Coupe. Unlike SIA II, which calculates service intervals based on the parameters of engine speed, engine temperature and distance traveled, SIA
III calculates service intervals based on fuel used.
PROCEDURE
[NEW] Using ISTA (Integrated Service Technical Application), the SIA data coded into a vehicle (the "Coded Inspection Limit" [in gallons]) can be
printed and attached to the repair order. This is required in cases when the instrument cluster indicates that scheduled maintenance is required, but
the vehicle has lower than expected mileage. The most likely cause is either an aggressive driving style or that the vehicle is used in heavy city
traffic. In a small number of cases, it may be that the SIA data was incorrectly coded. In this case, the instrument cluster must be recoded to correct
the service interval coding limit coded into the vehicle.
[NEW] The display of SIA data in ISTA also shows "Stored Consumption". "Stored Consumption" (in gallons) shows the amount of fuel consumed
in the "Coded inspection limit" (in gallons). When the two numbers become equal, the instrument cluster indicates that service is required. When a
"Service reset" is performed, "Stored Consumption" is reset to zero.
[NEW] To access the vehicle SIA data, use ISTA and follow the vehicle selection below:
