Mercedes-Benz E S Class W203 C209 W211 Rear Abs Sensor Connector A0395453028

Mercedes-Benz E S Class W203 C209 W211 Rear Abs Sensor Connector is a practical electrical system component for the braking system, designed for installation in the rear section of Mercedes vehicles. Thanks to its factory geometry and fitment for the original wiring harness, it ensures a stable signal connection between the wheel speed sensor and the ABS controller, which translates into predictable operation of safety systems. This used component allows for an economical yet technically correct repair without the need to use aftermarket replacements with uncertain parameters.

Specifications and technical data

• SKU: A0395453028
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0395453028
• Substitutable numbers: A0395453028, A 0395453028, A 039 545 30 28, AS
• Location on the vehicle: Rear
• Category: Other Brake Parts

Purpose and function in the ABS system

The described Mercedes-Benz E S Class W203 C209 W211 Rear Abs Sensor Connector is an electrical system component responsible for transmitting the signal from the wheel speed sensor to the anti-lock braking system controller. A properly selected connector:

• ensures a reliable electrical contact under conditions of varying temperatures and suspension vibrations,
• reduces the risk of ABS errors resulting from circuit breaks or unstable signals,
• facilitates service – it allows for quick disconnection and reconnection of the sensor without interfering with the wiring harness.

The element is designed for installation in the rear part of the vehicle, in the immediate vicinity of the wheel speed sensor, which requires resistance to road debris and moisture.

Benefits of using an original Mercedes connector

Using an original connector in the ABS system of Mercedes cars brings measurable service and operational benefits. The most important include:

• Factory electrical fitment – the correct characteristics of the contacts and insulation support a stable signal reading from the wheel speed sensor.
• Compatibility with the original wiring harness – no need for wire modification, soldering, or using adapters.
• Consistency with the factory architecture of safety systems – the connector works with the ABS, ESP, and other systems using the wheel speed signal.

The used component allows for maintaining the vehicle's original technical specification while reducing repair costs, which is particularly important when servicing older E and S Class models.

Condition, verification, and service application

The offered Mercedes-Benz E S Class W203 C209 W211 Rear Abs Sensor Connector is sourced from dismantling and is intended for reinstallation on the rear axle side. This type of component is particularly useful in situations where:

• the original connector has suffered mechanical damage (cracked housing, broken latches),
• contact corrosion has occurred, leading to intermittent ABS errors,
• repair of the wiring harness in the area of the rear wheel speed sensor is necessary.

Replacing the connector with an original part allows for restoring proper communication between the sensor and the vehicle's electronics, which is crucial for the correct operation of the braking system and electronic stability control systems.

Integration with other chassis components

The Mercedes-Benz E S Class W203 C209 W211 Rear Abs Sensor Connector works directly with the wheel speed sensor and indirectly with the braking system control module. In service practice, it is often replaced in parallel with:

• the ABS sensor on the given wheel,
• a fragment of the wiring harness routed along the control arm or rear beam,
• fasteners and cable holders in the suspension zone.

Such an approach helps reduce the risk of the fault returning due to mechanical or environmental damage in the rear axle area.

If you are planning a comprehensive repair or upgrade of the braking and traction control zone in your Mercedes and need other components from the same group, such as additional connectors, wiring harness fragments, or accessory mounting elements, check the available parts in the Other Mercedes category.

Technical support and development of chassis systems

When planning the repair or modernization of braking and chassis systems, it is worth expanding your knowledge about the structural differences between standard and sports versions. A good point of reference can be the analysis of solutions used in other premium brands – especially in the context of component selection, brake characteristics, and the way sensor installations are routed.

If you are interested in how manufacturers design advanced powertrains, braking systems, and suspensions in sports variants, read the article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how structural differences affect the selection and operation of parts in high-performance cars.