Mercedes-Benz AMG C43 2002–2024 — technical service bulletin

Bulletin LI82.85-P-079087 · NHTSA communication 11017119 · issued Apr 21, 2025

Technical service bulletin

communication type

Electrical System

component

2002–2024

model years

vehicle entries

Official summary

Complaint A popup is seen on the HU with the message "data connection temporarily not available". Potentially affected functionalities in NTG4.5, NTG5 1.Weather 2.Local Search 3.IP Radio 4.Send2Car 5.Speech Detection Service 6.E-Navigator 7.iHeartRadio 8.Traffic Cams Cause Analysis ongoing. Remedy Please track the LI for further updates. Note: Please do not create TIPS cases. Please do not replace any components. HU/Hermes SW update / SCN coding will not fix the issue.

Vehicles covered

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.