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RecallGazette

Vehicle problems, recalls & safety intelligence

Mercedes-Benz AMG S63 2021–2024technical service bulletin

Bulletin LI83.30-P-076965 · NHTSA communication 10244738 · issued Oct 10, 2023

Technical service bulletin
communication type
Visibility
component
2021–2024
model years
19
vehicle entries

Official summary

Following a software update of the head unit to FUP3 variant 316.5 or higher, the "Residual heat" button is no longer displayed in the air conditioning system operating menu. A26/17 head unit MBUX software There is currently no remedy available. Replacing the hardware will not remedy the problem. A software update is intended with the FUP4 software E444.x (planned release for Q4/23)

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.