Mercedes W207 ABS Speed Sensor Front Left Right N/O/S Cable A2079059502

Mercedes W207 ABS Speed Sensor Front Left Right N/O/S Cable for Mercedes W207 models is a precision safety system component responsible for accurately reading wheel rotational speed on the front axle. This sensor, complete with a cable harness, is designed for installation on the front of the vehicle, on either the left or right side, facilitating easy fitment during brake system and ABS maintenance.

Specifications and technical data

• SKU: A2079059502
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2079059502
• Substitutable numbers: A2079059502, A 207 905 95 02
• Location on the vehicle: Front, Left, Right
• Category: ABS Speed Sensors

Application and function in the ABS system

The offered ABS speed sensor works in direct cooperation with the brake system control module, providing a signal regarding wheel rotational speed. A properly functioning sensor:

• ensures stable ABS system operation during emergency braking,
• supports traction control and electronic stability programs,
• reduces the risk of wheel lock-up on slippery surfaces.

Thanks to its dedicated design for the front of the vehicle, with the option for left or right-side installation, this component allows for flexible front axle maintenance without the need for different references for each side.

Construction, cable, and installation in the Mercedes W207

The sensor is integrated with a signal cable, which simplifies installation and minimizes the number of connections exposed to corrosion or mechanical damage. The design intended for the Mercedes W207 platform allows for:

• correct routing of the harness in original brackets and guides,
• maintaining the proper distance between the sensor and the impulse ring,
• stable mounting in the steering knuckle or hubs in accordance with factory mounting points.

Such fitment reduces the risk of installation errors and facilitates diagnostics in the event of ABS or ESP warning lights appearing on the instrument cluster.

Characteristics of the used component

The presented ABS speed sensor is a used component sourced from dismantling, which provides a cost-effective solution while maintaining the manufacturer's original specifications. Choosing an original pre-owned component allows for:

• maintaining compatibility with the factory ABS controller in the Mercedes W207,
• reducing issues with connector fitment and cable length,
• maintaining operating parameters consistent with the vehicle's design assumptions.

This solution is particularly effective for maintenance repairs where the priority is technical system performance at reasonable service costs.

Selection by part numbers and integration with electronics

When selecting an ABS speed sensor for a specific body and engine version of the Mercedes W207, it is crucial to compare the markings with the existing component and the vehicle's specifications. Proper selection ensures:

• correct signal interpretation by the ABS/ESP controller,
• no fault memory errors related to parameter mismatch,
• stable cooperation with other sensors on the vehicle's axles.

As a result, the sensor can be used both as a replacement for a damaged part and as a component used preventively during major suspension and brake work.

System expansion and related components

If you are planning a comprehensive repair or upgrade of the braking zone in your Mercedes and need other elements from the same group, such as additional sensors, signal cables, or wiring harnesses, check the available parts in the Mercedes ABS Speed Sensor category.

When working with used sensors and electronic modules, it is worth paying attention to the compatibility of markings and the installation method. A detailed discussion on selection, compatibility verification, and practical installation aspects can be found in the Global Parts guide: Used automotive electronics on board – why is it worth choosing pre-owned ECU modules and sensors?.