Mercedes-Benz AMG CLS53 2019–2022 — technical service bulletin
Bulletin NCU-2022100005 · NHTSA communication 10233773 · issued Mar 23, 2023
Technical service bulletin
communication type
Electrical System
component
2019–2022
model years
34
vehicle entries
Official summary
Mercedes-Benz AG (â MBAGâ ), the manufacturer of Mercedes-Benz vehicles, has determined that the affected vehicles may not meet current On Board Diagnostics (â OBDâ ) emissions specifications. Under certain conditions, the permanent OBD fault code memory of the 48V ISG control unit may not activate. What Weâ re Doing MBUSA will conduct a voluntary Emission Recall Campaign in which an authorized Mercedes- Benz dealer will update the software in the affected vehicles.
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
- 2021 Mercedes-Benz AMG E53 S
- 2022 Mercedes-Benz AMG EQS 53
- 2021 Mercedes-Benz AMG GLE53
- 2022 Mercedes-Benz AMG GLE53
- 2019 Mercedes-Benz AMG GT53
- 2020 Mercedes-Benz AMG GT53
- 2021 Mercedes-Benz AMG GT53
- 2022 Mercedes-Benz AMG GT53
- 2019 Mercedes-Benz CLS 450
- 2020 Mercedes-Benz CLS 450
- 2021 Mercedes-Benz CLS 450
- 2022 Mercedes-Benz CLS 450
- 2019 Mercedes-Benz E 450
- 2020 Mercedes-Benz E 450
- 2021 Mercedes-Benz E 450
- 2022 Mercedes-Benz E 450
- 2022 Mercedes-Benz EQS 450
- 2020 Mercedes-Benz GLE 450
- 2021 Mercedes-Benz GLE 450
- 2022 Mercedes-Benz GLE 450
- 2019 Mercedes-Benz GLS 450
- 2020 Mercedes-Benz GLS 450
- 2019 Mercedes-Benz GLS450
- 2021 Mercedes-Benz GLS450
- 2022 Mercedes-Benz GLS 450 4MATIC
- 2019 Mercedes-Benz S 450
- 2020 Mercedes-Benz S 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.