BMW E46 Convertible Rollover Sensor Control Unit Module 8385223

BMW E46 Convertible Rollover Sensor Control Unit Module is an original component from the Electronic control modules and controllers group, designed for the airbag system in the BMW 3 Series E46 Convertible model. This solution allows for professional repair of the passive safety system while maintaining factory operating logic and compatibility with the vehicle's electrical installation.

Specifications and technical data

• SKU: 8385223
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8385223
• Substitutable numbers: 8385223, 67918385223, 6918515, 67916918515, 6918833, 67916918833, KD
• Category: ECUs & Computer Modules

Purpose and function of the airbag control unit

The airbag control unit in the BMW E46 Convertible is responsible for analyzing signals from crash sensors, controlling airbag igniters, and coordinating with seat belt tensioners. A correctly selected module ensures consistent operation of the entire SRS system, minimizing the risk of communication errors with other control units in the vehicle.

By using an original module from the BMW family, proper bus communication and compatibility with the software intended for the Convertible version are maintained, which is significant for diagnostics and potential programming.

Benefits of using an original BMW module

Choosing an airbag control unit sourced from BMW allows for maintaining the integrity of the entire electronic system. This is particularly important for vehicles where many safety functions are interconnected. The original module:

• works with the factory wiring harness and connectors without the need for modifications,
• facilitates diagnostic work using dedicated service tools,
• reduces the risk of incompatibility with other control units in the vehicle.

For workshops and users, this means a more predictable repair process and the ability to maintain a configuration consistent with the manufacturer's specifications.

Product characteristics and condition

The presented control unit belongs to the Electronic control modules and controllers group and is a used component, making it an attractive cost-effective alternative to new parts. At the same time, the OEM design is preserved, allowing the module to be integrated into the existing system without interfering with the factory electrical architecture.

Before installation, it is recommended to perform a full diagnostic of the SRS system, including verification of wiring harnesses, sensors, and igniters, as well as preparation for potential coding or adaptation of the control unit in accordance with BMW service procedures.

Selection by numbers and compatibility

This BMW airbag control unit is associated with a specific OEM part number and has assigned interchangeable numbers, which facilitates precise identification and selection for a specific vehicle configuration. When purchasing, it is worth verifying compatibility by part numbers as well as the model year and equipment version of the E46 Convertible to ensure proper cooperation with other modules.

In case of doubt, a good solution is to compare data from the removed control unit or consult a workshop specializing in BMW electronics, which will help avoid communication problems within the vehicle network.

Expanding knowledge and other BMW modules

If you want to better understand the operation of electronic modules in BMW 3 and 5 Series, including comfort modules, iDrive systems, or engine control units, it is worth checking out the guide material describing practical aspects of repairs using dismantled parts – you can find it in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models.

If you are planning a comprehensive repair or upgrade of the control electronics area in your BMW and need other elements from the same group, such as comfort modules, light control units, or engine control units, check out the available parts in the BMW electronic control modules and controllers category.