Mercedes-Benz AMG C43 2021–2026 — technical service bulletin

Bulletin LI91.60-P-076303 · NHTSA communication 11031201 · issued Apr 8, 2026

Technical service bulletin

communication type

Air Bags

component

2021–2026

model years

vehicle entries

Official summary

Complaint SRS indicator light illuminated in the instrument cluster. Electrical fault in the rear airbag/window airbag that may cause a connection between the airbag pins or to the vehicle mass Cause Contact problems that create a short circuit between the pins or to the vehicle ground Remedy Connect and disconnect the affected airbag five times Then the squib must be carefully blown out with dry compressed air. Caution: There must be no mechanical contact! If fault is not rectified: Please measure the internal resistance as described in SI91.00-P-0005A. If the resistor of the airbag is OK, pl

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.