Mercedes W156 W242 W246 W447 Relay 4-Pin Black Hella A0009822523

The Mercedes W156 W242 W246 W447 Relay Black 4 Pin is an original electrical component designed for installation systems in Mercedes vehicles. Its compact design, black housing, and four-pin connector make it a practical solution for precise control of selected circuits in the car.

Specifications and technical data

• SKU: A0009822523
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009822523
• Substitutable numbers: A0009822523, A 000 982 25 23
• Color: Black
• Category: Relays

Application in Mercedes W156, W242, W246, W447 Models

The presented relay has been designed for operation within the electrical systems of W156, W242, W246, and W447 series vehicles. As such, it is a perfectly matched component for factory wiring harnesses and sockets, minimizing the risk of installation issues. The four-pin connector configuration allows for stable control of selected loads, in accordance with the vehicle manufacturer's specifications.

As a part from the Relays group, this component is responsible for the safe switching on and off of circuits with higher current loads, while simultaneously relieving the control systems. This is particularly important in modern vehicles, where power supply stability affects the proper functioning of many comfort and safety systems.

Construction, Color, and Performance Parameters

The relay features a compact, black housing, which facilitates its location within fuse boxes and mounting modules. The black color is standard in many Mercedes installations, allowing the part to visually blend in with the original electrical components. The four pins ensure unambiguous signal and power routing, minimizing the risk of incorrect connection.

This type of solution is designed to operate under conditions typical for the engine bay or vehicle interior – taking into account temperature variations, vibrations, and humidity. Appropriately selected contacts and internal construction contribute to the relay's stable performance over a longer service life.

Original Origin and Part Condition

The offered relay comes from the Mercedes parts line, which signifies compliance with factory quality and fitment standards. This is a used, aftermarket part, allowing for an economical replacement of a damaged component while maintaining the original vehicle manufacturer's specifications.

For many owners of premium vehicles, choosing a used, original relay is a sensible alternative to cheaper replacements of unknown origin. This type of part retains its factory operating parameters while optimizing service costs.

Benefits of Using an Original Relay

Using this relay in the vehicle's electrical system offers a range of practical benefits:

• maintaining compatibility with the factory Mercedes electrical system,
• stable circuit activation due to matched operating characteristics,
• reducing the risk of contact overheating and improper load operation,
• easier electrical system diagnostics through the use of an original component.

If you are looking for other parts in this category, it is worth checking the full offer in the relays for Mercedes vehicles section, where you will find a wide selection of components matched to various models.

Professional Selection of Used Parts

Selecting the right relay directly impacts the reliability of the electrical system. For premium vehicles, many owners opt for proven used parts that combine an attractive price with retained original parameters. More on the advantages of such a solution and practical purchasing tips can be found in the article on choosing used car parts for style and savings.

For Mercedes owners who want to maintain their vehicle in good technical condition, using an original four-pin relay is a sensible way to restore proper electrical system operation without altering the factory installation architecture.

Technical Support and Additional Information

Before purchasing, it is advisable to compare the relay's parameters with the vehicle's factory data and the information contained in the product's technical specifications. This ensures that the selected component will work with the existing wiring harness and control modules. In case of doubt, it is also helpful to refer to the service documentation for the specific Mercedes model, which facilitates precise matching of parts from the Relays category to the given application.