Audi A4 B8 Interior Roof Alarm Motion Sensor Unit Cover Trim Panel 8T0947565

Audi A4 B8 Interior Roof Alarm Motion Sensor Unit Cover Trim Panel is an original trim component designed for installation in the headliner, specifically where the factory alarm motion sensor is housed. Thanks to its precise fit to the Audi interior lines, it ensures a cohesive cabin appearance and proper seating of the motion detection module. This is a practical solution for users who want to maintain the aesthetics and functionality of the factory security system.

Specifications and technical data

• SKU: 8T0947565
• Mark: Audi
• Condition: Used
• OEM Part Number: 8T0947565
• Substitutable numbers: 8T0947565, 8T0 947 565
• Category: Trim

Purpose and function of the component

The presented roof panel cover is part of the headliner area where the alarm motion sensor is mounted. It is responsible for:

• stable and proper positioning of the sensor relative to the vehicle interior,
• aesthetic closure of the mounting opening in the headliner,
• protection of the connector and sensor body against accidental mechanical damage. Due to its factory origin, the component maintains the correct geometry, which facilitates installation and reduces the risk of improper alarm system operation. Consistency with the original interior design translates into maintaining a uniform style of the Audi cabin.

Construction and fit to the Audi interior

The roof panel cover has been designed as a trim part that integrates with the headliner and the motion sensor module. The design provides for:

• a dedicated space for mounting the alarm sensor,
• a profile matched to the shape of the headliner in the Audi A4 B8,
• holes and clips allowing for secure attachment at factory points. Such a solution allows for trouble-free replacement of a damaged cover or restoring the completeness of the interior after alarm removal or service work in the headliner area.

Application in the alarm system

The component works with the factory alarm system, in which the motion sensor monitors the cabin space. A properly selected cover:

• provides an appropriate "window" for the motion sensor to operate,
• minimizes the risk of interference resulting from improper installation,
• helps maintain correct operating conditions for the detection module inside the vehicle. For users who want to maintain the original functionality of the alarm, replacing a missing or damaged cover with a factory trim component is a technically safe and aesthetically consistent solution.

Product characteristics and condition

The offered component comes from the Linings, decorative strips, and trim group, which means it primarily serves a finishing and protective function within the headliner. The product is in used condition, which is typical for original dismantled parts chosen by many users due to their fit for a specific model and the preservation of factory geometry. Choosing an original roof panel cover allows you to reduce the risk of installation problems that often appear with replacements. Precise fit with the headliner facilitates service work and shortens installation time, which is important for both workshops and users retrofitting their Audi themselves.

Expanding the Audi interior configuration

The alarm motion sensor cover in the roof panel will work well both when repairing an existing system and when restoring the completeness of the interior after previous modifications. It can be used in situations where:

• the original cover has been mechanically damaged,
• the component is missing after removing the alarm or headliner,
• it is necessary to recreate the factory look of the cabin. For Audi owners who care about stylistic and functional consistency, using an original trim component is a practical and technically justified solution. If you are planning a comprehensive repair or modernization of the headliner trim area in your Audi and need other components from the same group, such as covers, overlays, or additional strips, check the available parts in the Audi Linings, decorative strips, and trim category. When working with dismantled components, especially in the area of vehicle technical systems, it is worth knowing good practices for selecting used components. To better understand what to look for when buying parts from the secondary market and how to minimize the risk of operational problems, read the guide on our blog: Fuel dosing problems: what to look for when buying a used injection pump and fuel rails?