BMW E81 E84 E87 E88 E90 Ultra Sonic Module Alarm System 9149671

BMW E81 E84 E87 E88 E90 Ultra Sonic Module Alarm System is an original security system component designed to work with the factory BMW alarm system. Thanks to its precise electronics and perfect fit for the vehicle's installation, it ensures stable alarm operation and correct communication with other control units. It is a practical solution for users who want to restore full functionality of the security system after a failure or upgrade.

Specifications and technical data

• SKU: 6974373-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 65759149671
• Substitutable numbers: 65759244134, 9244134, 65756963651, 6963651, 65759200943, 65756972064, 65756946528, 9200943, 6972064, 6946528, 65759149671, 65756974373, 9149671, 6974373
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and function of the module

The presented alarm sensor module is an electronic component responsible for interacting with the security system sensors in selected BMW E-series models. Its task is to correctly detect signals from the sensors and transmit them to the main control unit, which enables the alarm to react effectively to unwanted events.

Thanks to a design that complies with the manufacturer's standards, the module integrates with the existing wiring harness and vehicle architecture, allowing the factory logic of the security system to be maintained without the need for additional modifications.

Compatibility and technical markings

The element has been designed as part of the original BMW system, which means it has a dedicated OEM part number and interchangeable numbers, making it easier to select the right module for a specific vehicle configuration. This information is crucial when verifying compatibility with a given car and helps avoid communication problems within the vehicle's bus.

Data such as SKU, brand, and condition are also available in the product description, which facilitates clear identification of the element in the catalog and comparison with the currently installed component.

Product characteristics and condition

The BMW alarm sensor module comes from the brand's original production line, which translates into factory-fit for the electrical installation and compatibility with the vehicle's software. As a used item, it is intended for users looking for an economical, yet factory-compliant solution for repairing the security system.

Choosing an original used module allows you to maintain system consistency, avoid problems typical of low-quality replacements, and reduce the risk of diagnostic errors related to incorrect control unit communication.

Benefits of using an original BMW alarm module

• Better fit for the electrical installation and security system architecture.
• Consistency with factory software and alarm operation logic.
• Reduced risk of incorrect sensor readings and diagnostic errors.
• Economical solution while maintaining the original manufacturer's specifications.

Thanks to these features, the BMW E81 E84 E87 E88 E90 Ultra Sonic Module Alarm System will prove useful both for standard repairs and for replacing a damaged component in vehicles used on a daily basis.

How to select the right module and avoid mistakes

When selecting an alarm module, it is crucial to compare the OEM part number and interchangeable numbers with the data from the removed component or service documentation. It is also worth paying attention to the manufacturer's markings and the condition of the part to ensure the system works correctly after installation.

If you want to deepen your knowledge about the flawless selection of used parts and the importance of OEM number compatibility, the guide on our blog may be helpful: how to professionally select used car parts, where you will find practical tips on verifying compatibility.

Related products and development of the BMW security system

If you are planning a comprehensive repair or upgrade of the electronic security zone in your BMW and need other elements from the same group, such as additional modules, sensors, or controllers, check out the available parts in the Other BMW category.

For those interested in comparing technical solutions used in different brands and sports versions, including advanced drive and braking systems, we recommend the article: Audi RS vs other models – what is hidden under the hood and chassis?, which shows how premium manufacturers design key vehicle systems.