Mercedes W209 Wheel ABS Speed Sensor Rear Right O/S RPM Cable A2035401417

Mercedes W209 Rear Right ABS Sensor is a precise component from the ABS Speed Sensor category, responsible for reliable reading of the rotational speed of the rear right wheel. A used original component helps maintain the factory characteristics of the braking system, ensuring stable operation of the ABS and traction control system. This is a practical solution for users who want to restore the correct functionality of their Mercedes' braking electronics without excessive costs.

Specifications and technical data

• SKU: A2035401417
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2035401417
• Substitutable numbers: A2035401417, A 203 540 14 17
• Location on the vehicle: Rear, Right
• Category: ABS Speed Sensors

Function and Application of the ABS Speed Sensor

The ABS speed sensor mounted on the rear right axle is responsible for continuously measuring wheel rotational speed and transmitting the signal to the braking system controller. A correctly functioning component enables:

• precise modulation of braking force by the ABS system,
• stable operation of assistance systems such as traction control or stability control,
• elimination of errors and warning messages related to the ABS system.

Thanks to its dedicated placement on the vehicle, at the rear right side, the sensor is structurally adapted to the specific mounting position, which facilitates servicing and reduces the risk of incorrect installation.

Compatibility and Fit for Mercedes

The sensor in question has been designed for Mercedes vehicles, including models from the W209 family, which translates to proper fit with the wheel hub and wiring harness. Identification based on the OEM part number and available replacement numbers allows for technically correct selection of the component for a specific equipment version and vehicle year.

In practice, this means that with correct verification by part number or VIN, you can obtain a sensor that works with the factory ABS controller, without the need for installation modifications or the use of adapters.

Characteristics of a Used ABS Sensor

The presented ABS speed sensor is a used component, which offers a favorable compromise between cost and maintaining the original manufacturer's specifications. Such components are often chosen for maintenance repairs when restoring full braking system functionality within a reasonable budget is a priority.

A correctly selected and functional rear right wheel sensor allows you to:

• clear controller errors related to incorrect speed readings,
• restore proper ABS system operation during sudden braking,
• prevent uneven braking system operation between axles.

Installation and Maintenance Tips

When replacing the ABS sensor in a Mercedes W209, it is worth paying attention to the condition of the mounting socket in the steering knuckle and the cleanliness of the working surface near the pulse ring. Careful installation, proper cable routing, and secure connection of the electrical connector reduce the risk of signal interference and subsequent malfunctions.

To further verify the correct selection of used braking system components, including ABS sensors, discs, and calipers, the guide: Used Braking System: How to Safely Select Discs, Calipers, and ABS? will be helpful. This is a practical checklist that facilitates the assessment of component condition before installation.

Expanding ABS System Service in 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 additional wheel sensors, signal cables, or components cooperating with the stability control system, check the available parts in the category Mercedes ABS Speed Sensor.

If you are considering when it is worthwhile to opt for a used part, and when for a replacement or brand-new part, the comparative article Original, Replacement, or Used – Which Car Parts Are Most Cost-Effective? may also be helpful, discussing the differences in cost, quality, and fit by OEM numbers.