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June 8, 2026 Service bulletin

Acoustic Warning or message occurring when a closed sliding door is not recognized Complaint Customer may...

Mercedes-Benz technical service bulletin LI80.20-N-079697 for 2021-2025 Mercedes-Benz Sprinter 2500, 2021-2025 Mercedes-Benz Sprinter 3500 and 2015-2023 Mercedes-Benz Metris and others.

Bulletin number
LI80.20-N-079697
Component
Structure: body
Summary
Acoustic Warning or message occurring when a closed sliding door is not recognized Complaint Customer may state the warning message or indicator accompanied by acoustic tone alerting the sliding door is ajar when the door is completely closed Cause There are several reasons that lead to the failure occurring: - Mechanical damage through bending when loading and unloading - Worn contact plates --> After detachment of silver plating, the coper plate is corroded - Movement of sliding door/body when driving --> Contact pins do not always make contact with contact plate --> Central locking system fault message in instrument cluster Remedy In a problem case, replace contact switch for vehicles with +T50/+T55/+EL9 or contact plate with A4478201903. Remember to check the fit of the sliding doors and make any necessary adjustments as per AR72.16-S-1023E (447/448) and AR72.16-D-1023TS (907/910). Further valid damage codes: 82326 Contact switch for central locking system on sliding door 82347 Contact plate for central locking system on sliding door 53196 K/Z contact plate for central locking system on sliding door 82645 Contact switch for sliding door

Owners of these vehicles have filed 12 complaints in the body category.

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