Mercedes W213 S213 ABS Sensor Brake Axle Suspension Front Right O/S A2135403605

Mercedes W213 S213 ABS Sensor Brake Axle Suspension Front Right O/S is an original brake system component designed for precise wheel speed measurement on the right side of the front axle. Thanks to its factory-fit for the W213/S213 platform, it ensures stable cooperation with the ABS system and traction control, supporting safe and predictable braking. This is the ideal solution for users who expect consistency with Mercedes factory electronics and want to maintain the full functionality of safety systems.

Specifications and technical data

• SKU: A2135403605
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2135403605
• Substitutable numbers: A2135403605, A 213 540 36 05
• Location on the vehicle: Front, Right
• Category: ABS Speed Sensors

Purpose and function in the brake system

The presented sensor belongs to the ABS speed sensor group and is responsible for generating a wheel speed signal for the front right side. This information is continuously analyzed by the brake system controller, which uses it to:

• regulate pressure in the brake circuit during emergency braking,
• support the operation of the electronic stability control system,
• enable the smooth operation of driver assistance systems that depend on wheel rotation speed.

A properly functioning sensor on the front right axle is crucial for the uniform operation of the ABS, especially during emergency braking and on surfaces with varying grip levels.

Compatibility with Mercedes W213 / S213

The sensor has been designed with the electrical and mechanical architecture of the Mercedes E-Class W213 and S213 generations in mind. This means:

• proper fitment for the mounting point in the steering knuckle on the front right side,
• compatibility with the wiring harness and connector used in this platform,
• seamless integration with the factory Mercedes ABS controller.

As a result, installation is straightforward, without the need for modifications to the wiring or the use of adapters, which reduces the risk of installation errors.

Characteristics of the used component

The offered sensor is a used original part, which in practice means it retains factory geometry, the correct connector type, and compatibility with the vehicle's software. For safety-critical components such as ABS sensors, using a part from the same model family allows for maintaining system performance at the levels intended by the manufacturer.

Before installation, standard service procedures are recommended: inspecting the socket in the steering knuckle, checking the condition of the impulse ring, and verifying the wiring harness for any mechanical damage or corrosion.

Benefits of using an original ABS sensor

Choosing a sensor dedicated to the W213/S213 for the front right axle provides a number of practical benefits:

• Consistency with safety systems – maintaining the correct operation of ABS and electronic stability control systems.
• Factory fitment – correct cable length, connector type, and mounting geometry.
• Reduction of diagnostic errors – lower risk of random controller errors resulting from incorrect signals.
• Predictable vehicle behavior – uniform brake system operation at various speeds and road conditions.

If you are planning a comprehensive repair or upgrade of the braking zone in your Mercedes and need other components from the same group, such as additional sensors for other wheels, signal cables, or mounting elements, check out the available parts in the Mercedes ABS speed sensor category.

Safe selection of used brake system components

When choosing a used ABS sensor, it is worth paying attention to compatibility with the vehicle platform, placement on the vehicle, and the condition of the electrical connectors. It is also good practice to perform computer diagnostics after installation to confirm correct wheel speed readings and the absence of new errors in the controller.

If you want to go through the verification process for used brake system components, including ABS sensors, step-by-step, the following guide will be helpful: Second-hand brake system: how to safely choose discs, calipers, and ABS?.