{"nhtsa_id":604933,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-05-20","date":"1999-04-01","document_id":"542149","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE","mfr_system":null,"summary":"INFORMATION ON NEW VERSIONS OF ALL-ACTIVITY-MODULE (AAM) AND IMMOBILIZER. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/604933","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"ignition","name":"Ignition","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"MERCEDES BENZ","model":"163","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}