Complaint One or more seat functions are restricted or inoperative
Mercedes-Benz technical service bulletin LI91.29-P-080554 for 2022-2026 Mercedes-Benz C300, 2024-2026 Mercedes-Benz E350 and 2023-2026 Mercedes-Benz GLC 300 and others.
- Bulletin number
- LI91.29-P-080554
- Component
- Seats
- Summary
- Complaint One or more seat functions are restricted or inoperative. This may include: • Seat memory • Automatic seat adjustment • Easy Entry/Exit • Head restraint presetting • Collision avoidance with bench seat at rear • Actuation by other vehicle systems Seat normalization is missing, and fault code B228678 – “The control unit calibration has been lost or was not performed. Adaptation or adjustment is not correct.” is stored in the seat control unit. Additional fault codes may also be present. Cause The condition is currently under investigation. Remedy Process any additional faults first. • If a clear cause is found (for example, a failed component, wiring issue, or connector concern), repair that issue as required. If no root cause can be determined: • Do NOT perform Initial Start-up, Software Update, or Normalization of the Control Unit • Create a control unit log for the affected seat control unit. • Open a TIPS case to the Body/Chassis/Entertainment inboxand attach the control unit log for further analysis.
Owners of these vehicles have filed 5 complaints in the seats category.
Vehicles covered
- Mercedes-Benz C300 2022-2026 20222023202420252026
- Mercedes-Benz E350 2024-2026 202420252026
- Mercedes-Benz GLC 300 2023-2026 2023202420252026
- Mercedes-Benz E 450 2024 2024
- Mercedes-Benz AMG C43 2023-2024 20232024
- Mercedes-Benz S 580 2021, 2023 20212023
- Mercedes-Benz S 580 4matic 2022-2026 20222023202420252026
- Mercedes-Benz AMG Glc43 2024-2026 202420252026
- Mercedes-Benz GLC 300 4matic 2023-2026 2023202420252026
- Mercedes-Benz GLC 350 E 4matic 2025-2026 20252026
- Mercedes-Benz S 500 4matic 2022-2026 20222023202420252026
- Mercedes-Benz E 450 4matic 2024-2026 202420252026
- Mercedes-Benz E 350 4matic 2024-2026 202420252026
- Mercedes-Benz C 300 4matic 2022-2026 20222023202420252026
- Mercedes-Benz CLE 300 2024 2024
- Mercedes-Maybach S 580 4matic 2022-2026 20222023202420252026
- Mercedes-Benz S 580 E 4matic 2023-2026 2023202420252026
- Mercedes-Benz S 500 2021, 2023 20212023
- Mercedes-Benz AMG C43 4matic 2023-2026 2023202420252026
- Mercedes-Benz AMG Cle53 4matic+ 2024-2025 20242025
- Mercedes-Benz AMG Glc43 4matic Coupe 2024-2025 20242025
- Mercedes-Benz Cle 300 4matic 2024-2025 20242025
- Mercedes-Benz Cle 300 4matic Coupe 2026 2026
- Mercedes-Maybach S 680 4matic 2022-2023, 2025-2026 2022202320252026
- Mercedes-Maybach S 680 2023-2024 20232024
- Mercedes-Benz AMG S 63 E 4matic+ 2024-2026 202420252026
- Mercedes-Benz Cle 450 4matic 2024-2025 20242025
- Mercedes-Benz E 450 4matic All-Terrain 2024-2026 202420252026
- Mercedes-Benz AMG Cle53 4matic Cabriolet 2025-2026 20252026
- Mercedes-Benz AMG Cle53 4matic Coupe 2026 2026
- Mercedes-Maybach S 580 2021 2021
- Mercedes-Benz S 580 E 2023 2023
- Mercedes-Benz AMG C63 S E 2024 2024
- Mercedes-Benz AMG C63 S E 4matic+ 2024-2025 20242025
- Mercedes-Benz AMG Cle53 2024 2024
- Mercedes-Benz AMG Glc43 4matic 2024-2026 202420252026
- Mercedes-Benz Cle 300 4matic Cabriolet 2024-2026 202420252026
- Mercedes-Benz CLE 450 2024 2024
- Mercedes-Benz Cle 450 4matic Cabriolet 2024-2026 202420252026
- Mercedes-Benz GLC 300 4matic Coupe 2024-2026 202420252026
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