ABS Sensor Mercedes X253 C253 Rear Axle Right Speed Sensor A2539052400

Mercedes X253 C253 ABS Speed Sensor Rear Right is an original safety system component responsible for precisely reading the wheel speed on the rear axle on the right side. As part of the ABS Speed Sensor group, it works with the ABS/ESP control module, supporting vehicle stability and braking effectiveness. A used OEM component allows for a technically correct replacement of a damaged sensor without altering the installation's structure.

Specifications and technical data

• SKU: A2539052400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2539052400
• Substitutable numbers: A2539052400, A 253 905 24 00
• Location on the vehicle: Rear, Right
• Category: ABS Speed Sensors

Purpose and Function of the ABS Speed Sensor

The ABS speed sensor mounted on the rear right side of Mercedes X253/C253 series vehicles is responsible for generating a wheel speed signal, which is then analyzed by the brake system controller. A properly functioning component enables:

• precise braking force modulation by the ABS system,
• stable operation of traction and stability control systems,
• correct interaction with driver assistance functions dependent on wheel speed signals.

Thanks to its factory-matched fit for a specific axle and vehicle side, the sensor ensures proper positioning relative to the pulse ring, resulting in a stable signal and reducing the risk of errors in the controller.

Advantages of Using an Original Mercedes Sensor

Using an original ABS speed sensor on the rear right axle maintains the consistency of electrical and mechanical parameters with other system components. In practice, this means:

• guaranteed compatibility with the electrical system – correct connector type and cable length,
• proper fit for mounting points on the steering knuckle or control arm,
• retention of factory signal characteristics for the ABS/ESP controller.

A used OEM part is a good solution when maintaining the vehicle's original configuration while optimizing repair costs is a priority.

Vehicle Placement and Installation Aspects

The sensor is designed for installation on the rear right side of the vehicle, which is important for both mounting geometry and signal cable routing. When selecting and installing, pay attention to:

• matching the vehicle placement with the removed component,
• the condition of the mounting socket and cable guides,
• correct seating of the sensor relative to the pulse ring, without excessive play or tension.

A properly selected and installed sensor reduces the risk of recurring ABS errors, warning lights on the dashboard, and interference with the stability control systems.

Selecting a Used ABS Sensor and Technical Aspects

When choosing a used ABS speed sensor for a Mercedes X253/C253, it is crucial to match it to the specific vehicle version and ensure compatibility with manufacturer markings. In practice, this means verifying:

• the OEM part number assigned to the specific model,
• any interchangeable part numbers, if the manufacturer has provided multiple references for the same application,
• compatibility with the year of manufacture and body variant.

To facilitate identification, the product card provides parameters such as SKU, OEM Part Number, Interchangeable Numbers, Brand, Condition, and Vehicle Placement. Comparing these with the vehicle's data (e.g., via VIN) helps reduce the risk of purchasing an incorrect part.

If you want to better understand how to safely select used modules and sensors, it's worth consulting a guide that describes selection by VIN/OEM, hardware and software compatibility issues, and practical installation examples: Used Automotive Electronics On Board – Why Choose Second-Hand ECUs and Sensors?.

System Expansion – Other ABS Speed Sensors for Mercedes

If you are planning a comprehensive repair or upgrade of the braking area in your Mercedes and need other components from the same group, such as sensors for other wheels, additional speed sensors, or components that work with the ABS/ESP system, check the available parts in the Mercedes ABS Speed Sensor category.

Summary

The Mercedes X253 C253 ABS Speed Sensor Rear Right is a functional, used OEM component designed for the rear right side of the braking system. When properly selected and installed, it restores the correct operation of the ABS system and related stabilization systems, leading to safer braking and predictable vehicle behavior. This is a practical solution for users who want to maintain their Mercedes' original technical specifications while keeping service costs reasonable.