Mercedes EQA 2016–2025 — technical service bulletin
Bulletin LI54.71-P-078802 · NHTSA communication 11014593 · issued Feb 3, 2025
Technical service bulletin
communication type
Electrical System
component
2016–2025
model years
60
vehicle entries
Official summary
Complaint MBUX headunit display with red text box "System Inoperative". ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Under analysis. Remedy For chassis 118, 167, 177, 213, 238, 243, 247, 253, and 293 use Xentry to update headunit (A26/17). Target software number is 247 904 6600 (E905.4).
Vehicles covered
- 2020 Mercedes EQA
- 2021 Mercedes EQA
- 2024 Mercedes-Benz AMG CLA45
- 2019 Mercedes-Benz AMG E53
- 2020 Mercedes-Benz AMG E53
- 2021 Mercedes-Benz AMG E53
- 2022 Mercedes-Benz AMG E53
- 2023 Mercedes-Benz AMG E53
- 2025 Mercedes-Benz AMG E 53 4MATIC+ Wagon
- 2023 Mercedes-Benz AMG E53E
- 2021 Mercedes-Benz AMG E53 S
- 2016 Mercedes-Benz AMG GLC43
- 2017 Mercedes-Benz AMG GLC43
- 2018 Mercedes-Benz AMG GLC43
- 2019 Mercedes-Benz AMG GLC43
- 2020 Mercedes-Benz AMG GLC43
- 2021 Mercedes-Benz AMG GLC43
- 2022 Mercedes-Benz AMG GLC43
- 2018 Mercedes-Benz AMG GLC63
- 2019 Mercedes-Benz AMG GLC63
- 2020 Mercedes-Benz AMG GLC63
- 2021 Mercedes-Benz AMG GLC63
- 2022 Mercedes-Benz AMG GLC63
- 2020 Mercedes-Benz AMG GLC63 S
- 2021 Mercedes-Benz AMG GLC63 S
- 2022 Mercedes-Benz AMG GLC63 S
- 2018 Mercedes-Benz AMG GLC63S
- 2019 Mercedes-Benz AMG GLC63S
- 2021 Mercedes-Benz AMG GLE53
- 2022 Mercedes-Benz AMG GLE53
- 2023 Mercedes-Benz AMG GLE53 4MATIC+
- 2024 Mercedes-Benz AMG GLE53 4MATIC+
- 2021 Mercedes-Benz AMG GT43
- 2022 Mercedes-Benz AMG GT43
- 2023 Mercedes-Benz AMG GT43
- 2024 Mercedes-Benz AMG GT43
- 2019 Mercedes-Benz AMG GT53
- 2020 Mercedes-Benz AMG GT53
- 2021 Mercedes-Benz AMG GT53
- 2022 Mercedes-Benz AMG GT53
- 2023 Mercedes-Benz AMG GT53
- 2024 Mercedes-Benz AMG GT53E
- 2019 Mercedes-Benz AMG GT63
- 2020 Mercedes-Benz AMG GT63
- 2021 Mercedes-Benz AMG GT63
- 2022 Mercedes-Benz AMG GT63
- 2023 Mercedes-Benz AMG GT63
- 2024 Mercedes-Benz AMG GT63
- 2022 Mercedes-Benz AMG GT63 S
- 2023 Mercedes-Benz AMG GT63 S
- 2019 Mercedes-Benz AMG GT63S
- 2020 Mercedes-Benz AMG GT63S
- 2021 Mercedes-Benz AMG GT63S
- 2018 Mercedes-Benz E 400
- 2019 Mercedes-Benz E 450
- 2020 Mercedes-Benz E 450
- 2021 Mercedes-Benz E 450
- 2022 Mercedes-Benz E 450
- 2023 Mercedes-Benz E 450
- 2024 Mercedes-Benz E 450
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.