Mercedes-Benz S 500 2021–2023 — technical service bulletin
Bulletin LI32.50-P-079304 · NHTSA communication 11018296 · issued May 13, 2025
Technical service bulletin
communication type
Electrical System
component
2021–2023
model years
16
vehicle entries
Official summary
Complaint Harsh shift feeling followed immediately by "Suspension Malfunction" on instrument cluster and accompanied by either: P0AFB00 in A79/8 OR U013287 B210A00 in M67/X Cause Software timing with 48V and suspension systems. Remedy Update the Integrated Starter Alternator control unit (A79/8) software. Note that A79/8 has two listed software numbers on the quick test, updating the control unit should update the pair to the following combinations (example attached for software number locations): • A7259026400 and A7259030801 • A7259026700 and A7259031401 • A7259026800 and A7259031601
Vehicles covered
- 2021 Mercedes-Benz S 500
- 2022 Mercedes-Benz S 500
- 2023 Mercedes-Benz S 500
- 2023 Mercedes-Benz S 500 4MATIC
- 2021 Mercedes-Benz S 580
- 2022 Mercedes-Benz S 580
- 2023 Mercedes-Benz S 580
- 2023 Mercedes-Benz S 580 4MATIC
- 2023 Mercedes-Benz S 580 E
- 2023 Mercedes-Benz S 580 E 4MATIC
- 2021 Mercedes-Maybach S 580
- 2022 Mercedes-Maybach S 580
- 2023 Mercedes-Maybach S 580
- 2022 Mercedes-Maybach S 680
- 2023 Mercedes-Maybach S 680
- 2023 Mercedes-Maybach S 680 4MATIC
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.