Mercedes-Benz AMG C43 2016–2025 — technical service bulletin
Bulletin LI27.60-P-076554 · NHTSA communication 11036516 · issued Aug 26, 2026
Technical service bulletin
communication type
Power Train
component
2016–2025
model years
27
vehicle entries
Official summary
Complaint • Harsh 1‑2, 2‑3, and/or 3‑4 shift • Jerky shifting • Jolting when accelerating from stop Cause Insufficient software application causing elevated K81/K27/B05 fill time adaptations and elevated torque adaptations for concerning shift. Note: Shift quality in E Performance models can be affected if the HV Battery state of charge (SOC) reaches 25% or below. Remedy Check VGS software level, and follow relevant remedy instructions. (see attachment) AMG 43 models with VGS software levels up to 22A: As of 4/18/2025, an aftersales software improvement has been released. This software has bee
Vehicles covered
- 2016 Mercedes-Benz AMG C43
- 2017 Mercedes-Benz AMG C43
- 2018 Mercedes-Benz AMG C43
- 2019 Mercedes-Benz AMG C43
- 2020 Mercedes-Benz AMG C43
- 2021 Mercedes-Benz AMG C43
- 2022 Mercedes-Benz AMG C43
- 2023 Mercedes-Benz AMG C43
- 2022 Mercedes-Benz AMG SL63
- 2023 Mercedes-Benz AMG SL63
- 2025 Mercedes-Benz AMG SL63
- 2023 Mercedes-Benz AMG SL63 4MATIC+
- 2024 Mercedes-Benz AMG SL63 4MATIC+
- 2025 Mercedes-Benz AMG SL63 4MATIC+
- 2024 Mercedes-Benz AMG SL63 S E
- 2025 Mercedes-Benz AMG SL63 S E
- 2024 Mercedes-Benz AMG SL63 S E Performance 4MATIC+
- 2025 Mercedes-Benz AMG SL63 S E Performance 4MATIC+
- 2017 Mercedes-Benz C 300
- 2018 Mercedes-Benz C 300
- 2019 Mercedes-Benz C 300
- 2020 Mercedes-Benz C 300
- 2021 Mercedes-Benz C 300
- 2022 Mercedes-Benz C 300
- 2023 Mercedes-Benz C 300
- 2024 Mercedes-Benz C 300
- 2025 Mercedes-Benz C 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.