If installed: Removing emergency horn (additional work for anti-theft alarm system)

WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.

Removing the emergency horn with tilt sensor

NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.

Unlock plug connection (1) and disconnect.
Loosen nut (3).
Removing the emergency horn (2) with tilt alarm sensor.

Courtesy of BMW OF NORTH AMERICA, INC.