Mercedes Benz

Computers/Controls - ISTA(R) Does Not ID The Vehicle SI M07 06 10 Workshop Environment Systems November 2010 Technical Service SUBJECT ISTA Does Not Automatically ID the Vehicle MODEL All SITUATION When identifying a vehicle using ISTA (Integrated Service Technical Application), the error message "VIN unknown" is displayed on the ISID (Integrated Service Information Display). This situation occurs with both automatic identification (Read out vehicle data) and manual entry of the VIN. The "Start vehicle test" button is grayed out after identification of the vehicle via "VIN" or "Basic feature". CAUSE The vehicle was produced after the production date of the ISTA DVD version. Therefore, its VIN was not included in the ISTA database. PROCEDURE In some cases, when deleting the transport mode and performing the pre-delivery inspection, the vehicle may be too new, and the VIN from the vehicle is not recognized by ISTA. The procedure has changed with th...