2023-2026 Audi MIB3 Calendar Function Not Available TSB

Audi has issued Technical Service Bulletin (TSB) 2074855/3 to address customer inquiries regarding the Audi MIB3 calendar function not available in certain MIB3 and Audi Connect equipped vehicles. This bulletin, released on June 2, 2025, clarifies that the unavailability of the calendar service is not a defect but a deliberate deactivation for technical reasons.

This informational TSB applies to a wide range of 2023-2026 Audi models. It advises service technicians not to perform any repairs related to this condition, as it is considered normal operation under the current circumstances.

Symptoms

Owners of affected Audi vehicles may notice that the calendar function is not working or is no longer available within the infotainment system. Specific complaints noted in the TSB include:

• The calendar functionality cannot be selected.
• Data related to the calendar service appears to be missing from control modules or services.
• The calendar function exhibits no functionality at all.
• The operation sequence for the calendar function is incorrect.

These symptoms are typically observed within the cell phone functions, customer portal, and applications that rely on the mobile telephone screen image via a WLAN connection for calendar information display.

Technical Background

According to Audi, the