Mercedes-Benz C W203 Steering Wheel Angle Sensor Slip Ring Squib A0025421918

Mercedes-Benz C W203 Steering Wheel Angle Sensor Slip Ring Squib is a precision component from the Relays and switches group, responsible for the proper interaction between the steering system and safety and stability control systems. This used original component ensures correct vehicle electronics performance while providing a cost-effective solution for steering system repairs.

Specifications and technical data

• SKU: A0025421918
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0025421918
• Substitutable numbers: A0025421918, A 002 542 19 18, A2034600149, A 203 460 01 49, EM
• Location on the vehicle: Rear, Right
• Category: Relays & Contactors

Purpose and function in the vehicle system

The offered steering wheel angle sensor with slip ring and airbag connector is designed for installation in the Mercedes-Benz C-Class W203 generation. This component communicates with the vehicle's electronics, transmitting information about the steering wheel position to systems responsible for driving stability and the correct operation of the driver's airbag.

Its placement in the rear – right side area of the electrical installation structure means that the component is integrated with a specific part of the wiring harness and control modules, which requires precise matching to this body version and vehicle configuration.

Benefits of using an original component

Using an original steering wheel angle sensor in a Mercedes-Benz C W203 allows for maintaining consistent performance parameters with the factory vehicle electronics. As a result:

• the electronic stability control system receives correct data on the steering wheel position,
• communication with the driver's airbag module proceeds according to the manufacturer's specifications,
• the risk of controller errors related to incorrect steering angle readings is reduced.

A used original component is a sensible choice for repairs when you want to maintain the factory operating characteristics of the system while optimizing costs.

Installation aspects and fitment

The sensor is structurally prepared to work with the steering column and electrical installation specific to the Mercedes-Benz C W203. When selecting the part, it is crucial to match it to the specific equipment version and ensure compatibility with the vehicle's control system, which helps avoid communication issues between modules.

Before installation, it is recommended to verify compatibility with the vehicle and perform sensor adaptation or calibration in the controller, if required by the service procedure for the given model. This approach minimizes the risk of re-disassembly and speeds up the completion of the repair.

Application in service practice

This type of steering wheel angle sensor is often replaced in situations where error messages regarding the stability control system or problems with the driver's airbag operation appear. Choosing an original, used component allows you to restore proper system operation without the need to invest in a new part, while maintaining appropriate performance parameters.

If you are planning a comprehensive repair or upgrade of the electrical and control system area in your Mercedes and need other components from the same group, such as relays, switches, or control modules, check the available parts in the Mercedes Relays and switches category.

Additional materials and technical knowledge

When diagnosing faults related to electronics and drivetrain systems, it is worth using reliable sources of knowledge. If you are interested in examples of typical operational problems in modern cars and their impact on the service budget, the following article may be helpful: Faulty BMW E90 engines: check what can ruin your budget. It will allow you to better understand how important the proper selection and condition of electronic and mechanical components are in vehicles of various brands.