BMW 3 Series E46 Ultra Sonic-Module 8379938

BMW E46 Ultrasonic Module 8379938 is an original, factory-installed component in BMW 3 Series E46 vehicles, responsible for managing ultrasonic sensors in comfort and security systems. This specialized module ensures precise integration with the vehicle's electronics, and thanks to its factory origin, guarantees correct communication with the electrical system and stable operation of onboard systems. It is a solution for users who expect to maintain original functionality without altering the car's factory architecture.

Specifications and technical data

• SKU: 8379938
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8379938
• Substitutable numbers: 8379938, 65758379938, 65756938048, 6938048, 65758376992, 8376992, 65758369745, 8369745, 65758362459, 8362459, PK
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and Function of the BMW E46 Ultrasonic Module

The ultrasonic module in the BMW E46 is responsible for processing signals from sensors that use ultrasonic waves, working in conjunction with the body's electronics. This component belongs to the comfort and safety equipment group and:

• processes signals from ultrasonic sensors installed in the vehicle,
• communicates with other control units in the vehicle network,
• operates based on factory BMW algorithms, without the need for external programming,
• was designed for the specific electrical architecture of the BMW E46.

This ensures consistent operation of electronic systems and reduces the risk of communication errors between modules.

Benefits of Using an Original BMW Module

Using an original ultrasonic module in the BMW E46 is important for both reliability and future vehicle diagnostics. In practice, this means:

• guaranteed compatibility with the wiring harness and connectors used in the E46 series,
• correct cooperation with factory body control units and security systems,
• easier interpretation of errors in BMW diagnostic testers,
• preservation of the original equipment configuration without the need for installation modifications.

By choosing such a component, the user receives a solution that aligns with the vehicle manufacturer's intentions, which is important for vehicle servicing and maintaining stable electronic operation.

Characteristics of a Used Part

The offered ultrasonic module is a used part, sourced from disassembly. This type of part allows for economical repair of the electronic system while maintaining the original BMW specifications. The module is designed for installation in place of the factory equivalent, using existing mounting points and original connectors.

Before installation, a standard service procedure is recommended, including checking the vehicle's electrical system and verifying the system's correct operation after connection, which helps confirm stable operation of the ultrasonic system in the specific vehicle instance.

Interchangeable Numbers and Part Identification

The module has an assigned OEM part number and a set of interchangeable numbers, which facilitates its identification in BMW catalogs and service software. This allows for precise matching of the component to a specific BMW E46 configuration, as well as verification of compatibility with modules used in different model years and equipment versions.

Before purchasing, it is advisable to compare the markings on your existing module with the data in the specifications to confirm that the offered part matches the one installed in your vehicle. This approach minimizes the risk of installing an incorrect control unit and supports seamless integration with the car's electronics.

Related Components and Further Technical Knowledge

If you are planning a more extensive upgrade or repair of the electronics in your BMW and are interested in other components from this group, check the available parts in the Other BMW category.

For those who want to better understand the differences in design and manufacturers' approaches to designing advanced powertrain systems and their accompanying electronics, a comparison of sports versions with standard variants may be helpful – more information can be found in the article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?.