Mercedes W204 Rear Tail Light Wiring Loom Harness Plug Left N/S A2048200164

Mercedes W204 Left Rear Lamp Wiring Harness Connector A2048200164 is an original electrical installation component designed to service the driver's side rear lighting. It enables a secure connection of the lamp to the vehicle's factory wiring, ensuring stable power supply and proper functioning of lighting features. This is a practical solution for replacing a damaged harness, post-accident repairs, or restoring the electrical system to full functionality.

Specifications and technical data

• SKU: A2048200164-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2048200164
• Substitutable numbers: A2048200164, A 204 820 01 64
• Location on the vehicle: Rear, Left
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and Function in the Vehicle

The presented wiring harness with connector is a component from the Wires, Harnesses, and Connectors group, dedicated to the left rear lamp of the Mercedes W204 class body. It is responsible for transmitting signals and power to individual lamp sections, such as position lights, brake lights, turn signals, or license plate illumination, according to the specific vehicle's configuration.

Its placement in the rear – left zone allows for direct replacement of a damaged section of the installation without the need to interfere with other electrical circuits. This makes the repair more predictable and reduces the risk of additional faults.

Construction and Electrical Compatibility

The harness is designed as a component that fits factory connectors and mounting points in the Mercedes W204. The correct wiring layout and connector type allow for a near plug-and-play installation, without the need for wiring modifications or adapters. This is particularly important for maintaining compliance with the vehicle's original electrical schematics.

As part of the Mercedes group intended for a specific body area, the harness helps maintain consistency in electrical parameters, such as wire cross-sections, insulation types, or cable routing. In practice, this translates to stable operation of the rear lamp and a reduction in problems with lighting control system errors.

Benefits of Using an Original Harness

Using a dedicated left rear lamp wiring harness offers a number of practical advantages:

• maintaining the factory wiring route within the rear body section,
• secure electrical connection thanks to the fitted lamp connector,
• reducing the risk of overheating or loose contacts,
• easier diagnosis of potential lighting faults in the future.

For the user, this means more predictable lighting system operation and a lower risk of technical inspection issues resulting from faulty lights.

Component Condition and Service Application

The offered wiring harness is a used component, making it an attractive solution for operational and post-accident repairs where a reasonable cost while maintaining compatibility with the original installation is a priority. This type of part is particularly useful in situations where the lamp connector has been damaged, wires have been chafed, or the installation was tampered with during previous repairs.

Replacing the left rear lamp wiring harness is recommended, among other things, when intermittent lighting failures occur, signs of contact overheating are visible, or previous repairs were done in a makeshift manner. Using a complete, fitted harness restores a clear connection system and facilitates subsequent service work.

Expanding Electrical System Modernization

If you are planning a comprehensive repair or modernization of the rear lighting area in your Mercedes and need other components from the same group, such as additional harnesses, connectors, or wire sections, check the available parts in the Mercedes Wires, Harnesses, and Connectors category.

For drivers interested in a broader approach to used parts and optimizing operating costs, an article describing the benefits of using tested second-hand components may be helpful – you can find it here: Used Car Parts for Mini Cooper – A Way to Style and Save.