Mercedes W204 W207 W212 Axle Turning Angle Sensor Rear Righ O/S A2075400817

Mercedes W204 W207 W212 Axle Turning Angle Sensor Rear Righ O/S is a precision suspension component responsible for accurately reading the axle position in the rear of the vehicle. Thanks to its factory design tailored to specific Mercedes models, this component from the Axle housings and parts group ensures proper integration with the vehicle's electronics and stable handling. This is a solution for users who expect a proven, original component with predictable performance parameters.

Specifications and technical data

• SKU: A2075400817
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2075400817
• Substitutable numbers: A2075400817, A 207 540 08 17
• Location on the vehicle: Rear
• Category: Axle Housings & Parts

Purpose and function in the vehicle

The presented sensor is designed for installation in the rear suspension, on the right side, in selected Mercedes C-Class, E-Class, and other models based on the W204, W207, and W212 platforms. Its task is to monitor the axle alignment angle, which is crucial for:

• proper operation of electronic stability control systems,
• traction control and vehicle behavior in corners,
• precise mapping of rear axle geometry in control units,
• maintaining predictable vehicle response to steering inputs.

Thanks to its dedicated placement on the vehicle, the sensor works with factory wiring harnesses and control modules, which facilitates installation and reduces the risk of installation errors.

Construction and fitment to the axle system

As an element from the Axle housings and parts group, the rear right axle turning angle sensor is designed to operate in a demanding chassis environment, where vibrations, temperature fluctuations, and exposure to contaminants occur. The construction provided by the vehicle manufacturer ensures:

• appropriate mounting rigidity to axle components,
• a compatible electrical connector for the factory installation,
• geometry matched to the specific position on the rear axle.

Such a solution allows for consistency with the original suspension design and Mercedes electronics, which is particularly important for vehicles equipped with advanced driver assistance systems.

Benefits of using an original sensor

Using a dedicated rear axle turning angle sensor in Mercedes W204, W207, and W212 models translates into a number of practical operational benefits:

• Stable handling – correct axle position reading supports the operation of systems responsible for traction and stability.
• Consistency with vehicle software – the sensor's operating parameters are adapted to the control unit algorithms used in these generations of Mercedes.
• Easier diagnostics – using an original solution facilitates error interpretation in diagnostic systems and speeds up service.
• Hassle-free installation – matched mounting points and connectors reduce the need for modifications.

This is especially important in all-wheel-drive vehicles, where the cooperation between the front and rear axles requires consistent, reliable data from sensors.

Condition, verification, and practical application

The offered item is in used condition, which allows for an economical replacement of the component while maintaining the original manufacturer's specifications. Before installation, a standard service procedure is recommended, including checking the wiring harness, connectors, and potential adaptation in the control unit, in accordance with workshop procedures for the given Mercedes generation. This type of sensor is often chosen for:

• post-collision repairs within the rear axle area,
• suspension geometry issues and stability system error messages,
• modernization or comprehensive maintenance of the chassis system.

To better understand how such components work with all-wheel-drive systems and stability systems in Mercedes and other brands, it is worth reading the article xDrive, 4Matic, quattro or 4Motion – a comparison of AWD systems from BMW, Mercedes, Audi and VW, which discusses the mechanics and servicing of modern AWD systems.

Expanding work on the Mercedes rear axle

If you are planning a comprehensive repair or modernization of the rear axle area in your Mercedes and need other elements from the same group, such as housings, mounts, or additional structural components, check the available parts in the Mercedes Axle housings and parts category.

For a fuller understanding of the impact of axle and suspension components on safety and driving comfort, you can also refer to the service guide regarding the chassis system, available in the article Suspension system – a comprehensive guide to shock absorbers, control arms and stabilizers, which discusses practical aspects of suspension maintenance in popular premium models.