Mercedes-Benz CL S Class C215 W220 Steering Angle Sensor A0025421718

Mercedes-Benz CL S Class C215 W220 Steering Angle Sensor is a precision component from the Switches, control elements and ignition locks group, responsible for the accurate reading of the steering wheel position in the vehicle's advanced systems. This original used component ensures stable cooperation with the factory electronics and allows for professional repair of the steering system and driver assistance systems. It is a solution for users who expect technically correct operation of safety and comfort systems in high-end models.

Specifications and technical data

• SKU: A0025421718
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0025421718
• Substitutable numbers: A0025421718, A 002 542 17 18, EM
• Category: Switches & Controls

Function and application of the steering angle sensor

The steering angle sensor in Mercedes-Benz CL and S-Class C215 / W220 generation models is responsible for the accurate measurement of the steering wheel position and its rotation direction. Data from this component is used by, among others, the electronic stability program, power steering, and other modules responsible for traction control and driving comfort.

A properly functioning sensor allows for:

• precise operation of vehicle stability systems during sudden maneuvers,
• consistent cooperation with electronics responsible for active safety,
• correct interpretation of steering wheel movements by the vehicle's control units.

Benefits of using an original component

Using an original sensor in premium cars, such as the Mercedes-Benz CL and S-Class, ensures consistency of parameters with the vehicle's factory configuration. As a result, electronic systems do not require compromises in operation, and the car's reactions to steering wheel movements remain predictable and repeatable.

The main advantages of this solution include:

• maintaining the factory characteristics of the steering system,
• reducing the risk of communication errors between control modules,
• easier diagnostics in case of any future faults.

Condition, verification and preparation for installation

The element comes from the original used parts segment, which allows for combining reasonable cost with maintaining compatibility with the factory installation. Before being offered for sale, components of this type are standardly verified for proper operation in the donor vehicle and compliance with their intended purpose.

When selecting a steering angle sensor for a specific car, it is worth paying attention to:

• compatibility with the body generation and the electronic systems used,
• correct identification by OEM part number and interchangeable numbers,
• manufacturer's recommendations regarding configuration after installation (e.g., adaptation in the control unit).

Integration with vehicle electronics

The steering angle sensor works with an extensive network of control units in Mercedes CL and S-Class models, which is why compatibility with factory software is particularly important. A properly selected component minimizes the risk of dashboard errors and problems with the operation of assistance systems.

If you want to better understand the specifics of installing and selecting used modules and sensors in modern cars, it is worth checking out the Global Parts guide: used automotive electronics and second-hand sensors, which discusses, among other things, selection by OEM numbers, compatibility issues, and practical installation tips.

Expanding repairs within the Mercedes control and electronics area

If you are planning a comprehensive repair or upgrade of the control and electronics zone in your Mercedes and need other elements from the same group, such as control modules, steering column switches, or ignition lock elements, check the available parts in the Mercedes switches, control elements and ignition locks category.

When working on safety and stability systems, it is also worth ensuring the proper selection of braking components. In this context, the article second-hand brake system – how to safely choose discs, calipers and ABS will be helpful, containing a practical checklist for users choosing used elements in specialized stores.