Mercedes-Benz AMG CLS53 2019–2025 — technical service bulletin
Bulletin LI09.41-P-078735 · NHTSA communication 11015545 · issued Mar 4, 2025
Technical service bulletin
communication type
Engine
component
2019–2025
model years
51
vehicle entries
Official summary
Complaint Check engine light illuminated Fault code present in MRG3 control unit P22C800 or P22C900 - The valve of the exhaust gas turbocharger is jammed. Cause Check valve in charge air pipe jammed. Remedy Replaced charge air line with check valve.
Vehicles covered
- 2019 Mercedes-Benz AMG CLS53
- 2020 Mercedes-Benz AMG CLS53
- 2021 Mercedes-Benz AMG CLS53
- 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
- 2023 Mercedes-Benz AMG E53E
- 2021 Mercedes-Benz AMG E53 S
- 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 CLS 450
- 2020 Mercedes-Benz CLS 450
- 2021 Mercedes-Benz CLS 450
- 2022 Mercedes-Benz CLS 450
- 2023 Mercedes-Benz CLS 450
- 2021 Mercedes-Benz E 450
- 2022 Mercedes-Benz E 450
- 2023 Mercedes-Benz E 450
- 2020 Mercedes-Benz GLE 450
- 2021 Mercedes-Benz GLE 450
- 2022 Mercedes-Benz GLE 450
- 2023 Mercedes-Benz GLE 450
- 2024 Mercedes-Benz GLE 450
- 2024 Mercedes-Benz GLE 450E 4MATIC
- 2025 Mercedes-Benz GLE 450E 4MATIC
- 2019 Mercedes-Benz GLS 450
- 2020 Mercedes-Benz GLS 450
- 2021 Mercedes-Benz GLS450
- 2022 Mercedes-Benz GLS 450 4MATIC
- 2023 Mercedes-Benz GLS 450 4MATIC
- 2024 Mercedes-Benz GLS 450 4MATIC
- 2021 Mercedes-Benz S 500
- 2022 Mercedes-Benz S 500
- 2023 Mercedes-Benz S 500
- 2024 Mercedes-Benz S 500
- 2023 Mercedes-Benz S 580 E
- 2024 Mercedes-Benz S 580 E
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.