Mercedes CLK W203 C209 Front ABS Wheel Speed Sensor A2035400417

The Mercedes CLK W203 C209 ABS Sensor is an original safety system component responsible for accurately reading wheel rotational speed on the front axle. This ABS speed sensor has been specifically designed for Mercedes CLK W203/C209 models, ensuring proper integration with the factory control unit and stable operation of the anti-lock braking system.

Specifications and technical data

• SKU: A2035400417
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2035400417
• Substitutable numbers: A2035400417, A 203 540 04 17
• Location on the vehicle: Front
• Category: ABS Speed Sensors

Application and Fitment for Mercedes CLK W203 C209

The offered component is a sensor designed for installation on the front axle of the vehicle. Its construction and geometry are adapted to the hub and steering knuckle used in the Mercedes CLK W203/C209, allowing for correct positioning relative to the pulse ring and stable signal reading.

By maintaining the original signal characteristics, the sensor works with the factory ABS/ESP module, supporting the proper functioning of the Electronic Stability Program, traction control, and braking assist systems.

Technical and Functional Characteristics

As a component in the ABS speed sensor category, this product is responsible for generating the wheel rotational speed signal, which is then analyzed by the braking system control unit. A properly functioning sensor contributes to:

• effective prevention of wheel lock-up during braking,
• stable ESP operation during sudden maneuvers,
• correct operation of driver assistance systems that rely on wheel speed signals.

This solution, based on original Mercedes design, allows for the preservation of correct electrical and mechanical parameters, which is crucial for proper diagnostics and the absence of errors in the control unit's memory.

Condition, Origin, and Benefits of Choosing a Used Part

The offered sensor is a used part, sourced from disassembly. Such components, when subjected to appropriate verification procedures, offer a sensible compromise between cost and functionality, especially for older vehicle generations.

Choosing a verified used sensor allows you to:

• reduce the cost of ABS system repair while maintaining factory specifications,
• avoid compatibility issues common with inexpensive aftermarket replacements,
• maintain the consistency of the braking system with the vehicle's original configuration.

If you want to learn more about selecting drivetrain components and their associated sensors, check out our guide on purchasing used differentials, sensors, and drivetrain parts, where we discuss practical criteria for assessing the condition of such components.

Why Use a Dedicated ABS Sensor in a Mercedes

In Mercedes CLK-class vehicles, the precision of safety systems is paramount. Using a sensor dedicated to a specific axle and model:

• ensures proper mechanical fitment to the steering knuckle and hub,
• maintains the correct working distance from the pulse ring,
• minimizes the risk of ABS/ESP errors appearing on the dashboard.

This solution is particularly recommended when replacing a damaged sensor due to a collision, socket corrosion, or signal cable failure.

Summary

The Mercedes CLK W203 C209 ABS Sensor is the right choice for users who want to restore full ABS functionality on the front axle while maintaining manufacturer-specified parameters. A properly selected and correctly installed sensor supports stable braking, predictable vehicle behavior on the road, and correct integration with electronic safety systems.