Mercedes W221 Luggage Compartment Lighter Socket Outlet 12V Socket A0008204051

The Mercedes W221 Trunk 12V Cigarette Lighter Socket is a practical, original electrical system component designed for installation in the trunk area. It allows for convenient powering of 12V accessories in the rear of the vehicle, enhancing the car's functionality for daily use and longer trips. Thanks to its genuine Mercedes origin, you maintain system consistency and a guaranteed fit for the W221 model.

Specifications and technical data

• SKU: A0008204051
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0008204051
• Substitutable numbers: A0008204051, A 000 820 40 51
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and Function of the 12V Trunk Socket

The presented 12V trunk cigarette lighter socket is an auxiliary system component that allows you to power devices requiring 12V voltage directly from the rear of the car. This solution is particularly useful when using:

• travel refrigerators and car coolers,
• tire compressors and small service devices,
• chargers for electronic equipment,
• additional lighting in the trunk area.

With installation in the trunk, there's no need to run cables from the front of the vehicle, which improves user ergonomics and reduces the risk of cable damage in the cabin.

Construction and Fit for Mercedes W221

The socket is designed for integration with the factory electrical system in the Mercedes S-Class W221 generation. This means that:

• its shape and mounting method are adapted to the designated installation location in the trunk,
• the connectors used are compatible with the wiring harness provided by the manufacturer,
• the contact arrangement conforms to the 12V cigarette lighter socket standard used in this generation.

This solution helps maintain the electrical system's integrity and facilitates future servicing. The original origin of the component minimizes the risk of fitment issues or improper contact.

Characteristics of the Used Component

The offered component comes from the secondary market, meaning it is a used part. In practice, this allows for an economical replacement of a damaged socket while maintaining factory specifications. This type of part is a good choice when:

• the existing trunk socket has suffered mechanical damage,
• there are problems with maintaining stable electrical contact,
• you want to restore the full functionality of the 12V system in the rear of the vehicle.

Choosing an original, used socket allows you to maintain compatibility with factory solutions without the need to adapt universal replacements.

Benefits of Installing a Trunk Cigarette Lighter Socket

Installing this component in a Mercedes W221 offers a range of practical benefits:

• Increased Trunk Functionality – the ability to power 12V accessories directly from the rear of the vehicle.
• Cabin Tidiness – no need to run cables from the front socket, improving user comfort.
• Factory Fit – a design intended for the specific model facilitates installation and subsequent operation.
• Reasonable Repair Cost – a used part allows for restoring system functionality without excessive expense.

Related Parts and Technical Advice

If you are planning a comprehensive repair or upgrade of the trunk area in your Mercedes and need other parts from the same group, such as additional power sockets, mounting covers, or small installation accessories, check the available parts in the Other Mercedes category.

When selecting electrical components and accessories for premium cars, it's beneficial to understand the design differences between various model lines and performance-enhanced versions – this is discussed in more detail in the article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which illustrates how manufacturers design powertrains, braking systems, and chassis in higher-spec vehicles.

If you are preparing your car for the autumn-winter season and want to approach the inspection of used parts consciously, the guide Winter Essentials: Which Used Car Parts Are Worth Checking and Replacing Before the Frost? may be helpful, offering practical checklists and tips for assessing the condition of used components.