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October 22, 2024 Service bulletin

When driving on rough ground, there may be noises from the 4-way head restraint of the front seats

Mercedes-Benz technical service bulletin LI91.16-P-078472 for 2021, 2023 Mercedes-Benz S 580, 2022, 2024 Mercedes-Benz S 580 4matic and 2022, 2024 Mercedes-Benz S 500 4matic and others.

Bulletin number
LI91.16-P-078472
Component
Seats
Summary
Complaint When driving on rough ground, there may be noises from the 4-way head restraint of the front seats. The fault profile is not present at the limit stops (head restraint entirely retracted or entirely extended). Cause Head restraint has increased play between the worm and gearwheel in the head restraint mechanism. Remedy Check play/noise (see video attachment, headrest OK/headrest not OK). Please exchange the head restraint in the event of a not OK result.

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