Mercedes-Benz AMG C43 2022–2023 — technical service bulletin
Bulletin LI72.10-P-076610 · NHTSA communication 10238414 · issued Jun 28, 2023
Technical service bulletin
communication type
Structure
component
2022–2023
model years
3
vehicle entries
Official summary
Left and/or right front door could scuff or jamb when opening/closing in the rear upper area at the B-pillar cover of the rear doors, see picture 1 Grub screw of upper hinge of left and/or right front door is loose. 1. Remove the grub screw. 2. Apply thread locking agent to the thread of the grub screw. 3. Install the grub screw and tighten with 23 Nm.
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.