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April 8, 2026 Service bulletin

Complaint Optical irregularity in the light guide of the ambient lighting

Mercedes-Benz technical service bulletin LI82.20-P-080425 for 2022-2026 Mercedes-Benz C300, 2023-2024 Mercedes-Benz AMG C43 and 2022-2026 Mercedes-Benz C 300 4matic and others.

Bulletin number
LI82.20-P-080425
Component
Exterior lighting
Summary
Complaint Optical irregularity in the light guide of the ambient lighting. Cause Exposure to external factors, e.g. cleaning or disinfecting agents, creams, mechanical stress, or impacts. Remedy The assessment of the complaint must be carried out from the normal seat position. Turn on ambient lighting and set to maximum brightness. The vehicle must be inside the workshop; the interior must not be exposed to any direct light (e.g., sunlight or strong interior lighting). If neither function nor lighting pattern of the ambient lighting is impaired, no warranty or goodwill claim is to be submitted.

Owners of these vehicles have filed 3 complaints in the lights category.

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