Mercedes-Benz AMG C43 2022–2025 — technical service bulletin

Bulletin LI82.10-P-078470 · NHTSA communication 11018365 · issued May 14, 2025

Technical service bulletin

communication type

Exterior Lighting

component

2022–2025

model years

vehicle entries

Official summary

Complaint Message in instrument cluster "Adaptive high beams assistant not available/inoperative" or "DIGITAL LIGHT reduced range of functions" in relation to "FC151E29- The level sensor at front left has a malfunction. There is an invalid signal" in the HLI control unit. Cause HLI control units processing of level sensor data. Remedy Update the software for the HLI control units - starting with the left controller. After the updates, perform SCN coding of the EZS. Please ensure that the SW with the A item number A2239027738 (or newer) is used. Parts replacements will not resolve complaint. Do

Vehicles covered

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.