{"nhtsa_id":11000615,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-06-01","date":"2024-05-17","document_id":"LI54.10-P-076820","mfr_campaign":"LI54.10-P-076820","replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"In the instrument cluster, the symbol for \"12 V battery\" and the message \"Switch on vehicle\" may sporadically be displayed. As a consequence of this, the fault codes B1FCB97 (=> N73/3) and U116000 (=> N73/3*1) are stored in the fault memory. In the subsequent analysis of the 12 V on-board electrical system data, the following parameters are noteworthy (see picture 1 in the attachment): • Charge balance negative when stationary. • Interior CAN bus is awake for an unusually long time while the vehicle was locked. • 12 V battery SOC (state of charge) during subsequent engine start is 45% or less. NOTE: This LI does not apply if the CEL was reported as being on without a 12V message. Once the 12 V battery SOC has exceeded 50% for the first time, the symbol and the message in the instrument cluster disappear again. The door control unit (N69/x) may sporadically keep the interior CAN bus awake. NOTE:· Exclusively door control units with the HW item numbers A2239019917, A2239010018, A2239010118 and A2239010218 can be affected. Remedy Update the software on all 4 door control units (N69/1, N69/2, N69/3 and N69/4). For this, a commissioning of the door control units must be carried out on all 4 doors (N69/1, N69/2, N69/3 and N69/4). (Path: XENTRY Scope; Control units view; DCU-XX (N69/x); Adaptations; Commissioning) The repair software is available with add-on 28462 for XD DVD 09/23, with add-on 28463 for XD DVD 12/23 and/or as of XD DVD 03/24. SW item numbers of the repair software: · A2069020310 for the door control units at the front doors (N69/1 and N69/2) · A2069020410 for the door control units at the rear doors (N69/3 and N69/4)","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11000615-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11000615-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11000615","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B1FCB","U1160"],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"AMG C43","year_from":2023,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG G63","year_from":2024,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"AMG GLC43","year_from":2024,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"C 300","year_from":2022,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLC 300","year_from":2023,"year_to":2024,"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":[]}