Mercedes C216 W221 Steering Column Angle Sensor Unit A2215401117

Mercedes C216 W221 Steering Column Angle Sensor Unit is a precision steering system component responsible for accurately reading the steering wheel position and interacting with the vehicle's safety systems. Thanks to its factory design for the Mercedes brand, it ensures proper communication with the car's electronics and stable operation of the steering system. This is a practical solution for users looking for a proven component from the Steering columns category.

Specifications and technical data

• SKU: A2215401117
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2215401117
• Substitutable numbers: A2215401117, A 221 540 11 17
• Category: Steering Columns

Purpose and function of the steering angle sensor

The steering angle sensor in Mercedes C216 and W221 models is responsible for the precise measurement of the steering column position and rotation direction. This information is used by power steering, electronic stability control, and other electronic systems that require accurate data on steering wheel movement. A properly functioning sensor allows for predictable vehicle reactions to driver input and reduces the risk of errors in the onboard electronics.

Advantages of using an original Mercedes component

Choosing a sensor dedicated to specific Mercedes models translates into high compatibility with the factory wiring harness and controller software. The original design ensures:

• proper fitment to the steering column without mechanical modifications,
• correct signal parameters for stability and power steering systems,
• consistency with the vehicle's electrical architecture.

As a result, installation is straightforward, and the risk of compatibility issues is minimized.

Characteristics of the component from the Steering columns category

The steering angle sensor belongs to the Steering columns group, which includes components responsible for transmitting steering wheel movement and interacting with control electronics. In practice, this means the component operates in the immediate vicinity of the steering system mechanics and is exposed to vibrations and temperature changes, which is why its proper construction and reading stability over a long service life are essential. Using a dedicated sensor helps maintain the consistent operation of the entire steering column module.

Condition, origin, and service application

The offered component is intended as a replacement part for Mercedes C216 and W221 series vehicles that utilize a steering system based on electronic steering angle measurement. It is suitable both for the typical replacement of a worn-out sensor and for post-collision repairs when restoring the functionality of the steering column is necessary. This is a practical solution for workshops specializing in the Mercedes brand and for users who want to restore the proper operation of power steering and stability control systems.

Technical support and additional materials

To better understand the role of the sensor in the entire system, it is worth familiarizing yourself with the operating principles of the steering system and power steering. A detailed discussion can be found in the article: Steering system and power steering – how it works and what fails?, which describes symptoms of malfunctions, diagnostic basics, and examples of components such as columns and sensors.

If you are planning a comprehensive repair or upgrade of the steering area in your Mercedes and need other components from the same group, such as intermediate shafts, column housings, or additional modules interacting with the steering wheel, check the available parts in the Mercedes Steering columns category.