Mercedes EQA 2016–2025 — technical service bulletin
Bulletin LI54.71-P-078802 · NHTSA communication 11015813 · issued Mar 18, 2025
Technical service bulletin
communication type
Back Over Prevention
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). If vehicle fits all criteria and target software is not available via Xentry, please open an XSS ticket.
Vehicles covered
- 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
- 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
- 2023 Mercedes-Benz AMG GLC43
- 2018 Mercedes-Benz AMG GLC63
- 2019 Mercedes-Benz AMG GLC63
- 2020 Mercedes-Benz AMG GLC63
- 2021 Mercedes-Benz AMG GLC63
- 2020 Mercedes-Benz AMG GLC63 S
- 2021 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+
- 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
- 2023 Mercedes-Benz EQB 250
- 2024 Mercedes-Benz EQB 250
- 2025 Mercedes-Benz EQB 250+
- 2022 Mercedes-Benz EQB 300 4MATIC
- 2023 Mercedes-Benz EQB 300 4MATIC
- 2024 Mercedes-Benz EQB 300 4MATIC
- 2025 Mercedes-Benz EQB 300 4MATIC
- 2022 Mercedes-Benz EQB 350 4MATIC
- 2023 Mercedes-Benz EQB 350 4MATIC
- 2024 Mercedes-Benz EQB 350 4MATIC
- 2025 Mercedes-Benz EQB 350 4MATIC
- 2020 Mercedes-Benz Eqc 400
- 2020 Mercedes-Benz GLA 250
- 2021 Mercedes-Benz GLA 250
- 2022 Mercedes-Benz GLA 250
- 2023 Mercedes-Benz GLA 250
- 2024 Mercedes-Benz GLA 250
- 2025 Mercedes-Benz GLA 250
- 2020 Mercedes-Benz GLB 250
- 2021 Mercedes-Benz GLB 250
- 2022 Mercedes-Benz GLB 250
- 2023 Mercedes-Benz GLB 250
- 2024 Mercedes-Benz GLB 250
- 2025 Mercedes-Benz GLB 250
- 2018 Mercedes-Benz GLC 300
- 2019 Mercedes-Benz GLC 300
- 2020 Mercedes-Benz GLC 300
- 2021 Mercedes-Benz GLC 300
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.