# Service bulletin LI82.85\-P\-079271 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. - Type: Service bulletin - NHTSA id: 11018626 - Published by NHTSA: 2025\-05\-29 - Manufacturer's number: LI82.85\-P\-079271 - Manufacturer's date: 2025\-05\-22 - NHTSA component: ELECTRICAL SYSTEM ## NHTSA's summary Complaint After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle, the message "SOS \- Service not activated" is displayed in the instrument cluster. Cause The message "SOS \- Service not activated" tells the customer that "over\-the\-air" registration of the vehicle with the Mercedes Intelligent Cloud is not possible. On a gray import vehicle, this is due to the fact that the SIM card installed in the HERMES communications module cannot dial into the mobile phone network in the importing country. Remedy The only way of avoiding the message in the instrument cluster is to deactivate the HERMES module using the 09o deactivation process after obtaining the customer's consent. After deactivation, the HERMES control unit \(N112/9\) has the operating status "Inoperative". The message "SOS not ready" appears in the audio/COMAND display \(A40/8\) and may also appear in the instrument cluster. This display message tells the customer that the emergency call function is not available. In addition, the workshop must attach a label \(2 x part number A9078172900 required\) to the cover of the emergency call button in the overhead control panel and to the emergency call button itself. Replacing the hardware of the HERMES communication module is not effective. ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018626-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018626-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Electrical system ## Vehicles listed - 2002 to 2008 MERCEDES BENZ G500 - 2003 to 2009 MERCEDES BENZ G55 - 2009 MERCEDES BENZ G550 - 2019 to 2022 MERCEDES\-BENZ A 220 - 2020 to 2021 MERCEDES\-BENZ AMG A35 - 2018 to 2021 MERCEDES\-BENZ AMG C43 - 2015 to 2021 MERCEDES\-BENZ AMG C63 - 2019 to 2021 MERCEDES\-BENZ AMG C63 S - 2015 to 2018 MERCEDES\-BENZ AMG C63S - 2019 to 2021 MERCEDES\-BENZ AMG CLS53 - 2017 to 2018 MERCEDES\-BENZ AMG CLS63 - 2017 to 2018 MERCEDES\-BENZ AMG E43 - 2019 to 2023 MERCEDES\-BENZ AMG E53 - 2023 MERCEDES\-BENZ AMG E63 S - 2018 to 2021 MERCEDES\-BENZ AMG E63S - 2013 to 2024 MERCEDES\-BENZ AMG G63 - 2016 to 2018 MERCEDES\-BENZ AMG G65 - 2015 to 2018 MERCEDES\-BENZ AMG GLA45 - 2017 to 2023 MERCEDES\-BENZ AMG GLC43 - 2018 to 2021 MERCEDES\-BENZ AMG GLC63 - 2017 to 2019 MERCEDES\-BENZ AMG GLE43 - 2016 to 2019 MERCEDES\-BENZ AMG GLE63 - 2018 MERCEDES\-BENZ AMG GLE63S - 2017 to 2019 MERCEDES\-BENZ AMG GLS63 - 2017 to 2021 MERCEDES\-BENZ AMG GT - 2018 to 2021 MERCEDES\-BENZ AMG GT C - 2018 to 2020 MERCEDES\-BENZ AMG GT R - 2016 to 2019 MERCEDES\-BENZ AMG GT S - 2012 to 2015 MERCEDES\-BENZ AMG ML63 - 2014 to 2021 MERCEDES\-BENZ AMG S63 - 2015 to 2016 MERCEDES\-BENZ AMG S63 4MATIC - 2015 to 2019 MERCEDES\-BENZ AMG S65 - 2016 MERCEDES\-BENZ AMG SL63 - 2018 to 2019 MERCEDES\-BENZ AMG SL63 - 2017 to 2018 MERCEDES\-BENZ AMG SL65 - 2017 to 2020 MERCEDES\-BENZ AMG SLC43 - 2013 MERCEDES\-BENZ AMG SLK55 - 2015 MERCEDES\-BENZ AMG SLK55 - 2014 to 2017 MERCEDES\-BENZ B 250E - 2017 to 2021 MERCEDES\-BENZ C 300 - 2018 MERCEDES\-BENZ C 350 E - 2015 to 2016 MERCEDES\-BENZ C300 - 2016 to 2017 MERCEDES\-BENZ C350E - 2015 MERCEDES\-BENZ C400 - 2016 to 2017 MERCEDES\-BENZ C450 - 2016 MERCEDES\-BENZ CLS 400 - 2019 to 2023 MERCEDES\-BENZ CLS 450 - 2016 MERCEDES\-BENZ CLS 550 - 2016 MERCEDES\-BENZ CLS 63S - 2015 MERCEDES\-BENZ CLS400 - 2012 to 2015 MERCEDES\-BENZ CLS550 - 2017 MERCEDES\-BENZ CLS550 - 2012 to 2014 MERCEDES\-BENZ CLS63 - 2014 to 2015 MERCEDES\-BENZ CLS63S - 2018 to 2019 MERCEDES\-BENZ E 300 - 2020 to 2023 MERCEDES\-BENZ E 350 - 2018 MERCEDES\-BENZ E 400 - 2019 to 2023 MERCEDES\-BENZ E 450 - 2017 MERCEDES\-BENZ E300 - 2010 to 2014 MERCEDES\-BENZ E350 - 2015 to 2017 MERCEDES\-BENZ E400 - 2010 to 2017 MERCEDES\-BENZ E550 - 2019 to 2024 MERCEDES\-BENZ G 550 - 2010 MERCEDES\-BENZ G55 - 2010 to 2011 MERCEDES\-BENZ G550 - 2013 to 2018 MERCEDES\-BENZ G550 - 2013 to 2016 MERCEDES\-BENZ GL350 - 2013 to 2017 MERCEDES\-BENZ GL450 - 2013 to 2017 MERCEDES\-BENZ GL550 - 2013 to 2016 MERCEDES\-BENZ GL63 - 2015 to 2020 MERCEDES\-BENZ GLA 250 - 2018 to 2023 MERCEDES\-BENZ GLC 300 - 2018 MERCEDES\-BENZ GLC 350 E - 2020 MERCEDES\-BENZ GLC 350 E - 2016 to 2017 MERCEDES\-BENZ GLC300 - 2019 MERCEDES\-BENZ GLC350E - 2019 MERCEDES\-BENZ GLE 400 - 2018 MERCEDES\-BENZ GLE 550 E - 2016 MERCEDES\-BENZ GLE300D - 2016 to 2017 MERCEDES\-BENZ GLE350 - 2016 MERCEDES\-BENZ GLE350D - 2016 to 2017 MERCEDES\-BENZ GLE400 - 2016 to 2017 MERCEDES\-BENZ GLE450 - 2016 to 2017 MERCEDES\-BENZ GLE550E - 2016 to 2017 MERCEDES\-BENZ GLE63S - 2018 to 2019 MERCEDES\-BENZ GLS 450 - 2018 to 2019 MERCEDES\-BENZ GLS 550 - 2016 to 2017 MERCEDES\-BENZ GLS450 - 2017 MERCEDES\-BENZ GLS550 - 2015 MERCEDES\-BENZ ML250 - 2011 to 2015 MERCEDES\-BENZ ML350 - 2015 MERCEDES\-BENZ ML400 - 2012 to 2014 MERCEDES\-BENZ ML550 - 2018 to 2020 MERCEDES\-BENZ S 450 - 2019 to 2020 MERCEDES\-BENZ S 560 E - 2014 to 2017 MERCEDES\-BENZ S550 - 2016 to 2017 MERCEDES\-BENZ S550 4MATIC - 2016 MERCEDES\-BENZ S550 HYBRID - 2015 MERCEDES\-BENZ S550E - 2017 MERCEDES\-BENZ S550E - 2015 to 2017 MERCEDES\-BENZ S600 - 2014 to 2017 MERCEDES\-BENZ S63 - 2017 MERCEDES\-BENZ S65 AMG - 2018 to 2020 MERCEDES\-BENZ SL 450 - 2018 to 2020 MERCEDES\-BENZ SL 550 - 2015 to 2016 MERCEDES\-BENZ SL400 - 2017 MERCEDES\-BENZ SL450 - 2013 to 2017 MERCEDES\-BENZ SL550 - 2013 to 2015 MERCEDES\-BENZ SL63 - 2017 MERCEDES\-BENZ SL63 - 2013 to 2015 MERCEDES\-BENZ SL65 - 2018 to 2020 MERCEDES\-BENZ SLC 300 - 2016 to 2017 MERCEDES\-BENZ SLC300 - 2014 to 2016 MERCEDES\-BENZ SLK250 - 2012 to 2016 MERCEDES\-BENZ SLK350 - 2016 MERCEDES\-BENZ SLK55 AMG - 2015 MERCEDES\-BENZ redundant S550E - 2013 MERCEDES\-BENz SLK250 - 2021 MERCEDES\-MAYBACH S 560 - 2018 to 2020 MERCEDES\-MAYBACH S 560 4MATIC - 2018 to 2020 MERCEDES\-MAYBACH S 650 - 2017 MERCEDES\-MAYBACH S550 - 2017 MERCEDES\-MAYBACH S600 - 2017 MERCEDES\-MAYBACH S650 JSON: [/v1/bulletins/11018626](/v1/bulletins/11018626) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20LI82.85-P-079271&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11018626&vehicle=Service%20bulletin%20LI82.85-P-079271)