Acceleration Sensor Mercedes S124 R129 Front Seat Belt Locking Retractor Module

Acceleration Sensor Mercedes S124 R129 Front Seat Belt Locking Retractor Module is a specialized component from the Electronic control modules and controllers category, responsible for precise monitoring of the front seat belt retractor operation. This solution is designed for users who expect stable performance of the safety system and compatibility with the factory Mercedes electronics architecture.

Specifications and technical data

• SKU: A0008206926
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0008206926
• Substitutable numbers: A0008206926, A 000 820 69 26, 0285001075, 0 285 001 075
• Location on the vehicle: Front
• Category: ECUs & Computer Modules

Purpose and function in the safety system

The described retractor sensor module works with the passive safety system, monitoring the operation of the front seat belt retractor. Its task is to transmit information about the retractor's status to the master controllers, which allows the system to react appropriately in emergency situations. Its location in the front zone of the vehicle ensures a direct connection with the components responsible for protecting the driver and passenger.

Thanks to a design consistent with factory Mercedes standards, the module maintains the appropriate signal characteristics and communication with other controllers, which is crucial for the proper operation of the entire safety system.

Application in Mercedes S124 and R129 models

The module has been developed for Mercedes S124 and R129 series vehicles, where the safety system is based on dedicated controllers and sensors. Using an original solution from the same design group allows for maintaining the consistency of the electrical installation and the operating parameters specified by the manufacturer.

In practice, this means:

• proper cooperation with the existing electrical harness,
• maintaining factory operating characteristics of the seat belt retractor,
• minimizing the risk of errors in the airbag and retractor system resulting from incompatible components.

Technical characteristics and integration with vehicle electronics

As an element from the Electronic control modules and controllers category, the front seat belt retractor sensor is designed to work in an environment requiring stable communication with other controllers. The system uses dedicated connectors and signal logic matched to the Mercedes electronics architecture, which facilitates integration with the factory system.

The module is intended for installation in the front part of the vehicle, which shortens the signal path to key safety system components. A properly selected and functional retractor sensor reduces the risk of system errors and supports the maintenance of full seat belt functionality.

Condition, selection, and benefits of use

The offered item is in used condition, which allows for an economical restoration of the safety system's efficiency while maintaining the original manufacturer's specifications. Proper selection of the module for a specific Mercedes vehicle configuration is important both from the point of view of safety and correct cooperation with other controllers.

The main benefits of using this solution include:

• maintaining the factory logic of the safety system,
• consistency with the electrical installation and Mercedes controller architecture,
• the possibility of replacing a damaged module without interfering with the vehicle's structure.

System expansion and selection of other modules

If you are planning a comprehensive repair or upgrade of the safety zone in your Mercedes and need other components from the same group, such as additional controllers, monitoring modules, or sensors working with the system, check the available parts in the Electronic control modules and controllers Mercedes category.

When making a decision about using a used module, it is worth knowing the broader context of automotive electronics selection, including controllers and sensors. Practical tips on assessing the condition, compatibility, and cost-effectiveness of such a solution can be found in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.