Lamp Plug Mercedes CL203 Rear Right O/S Light Socket Wiring 0375453528

Mercedes CL203 Plug Wire Socket Right Rear Lamp is an original rear lighting electrical system component, designed for the right side of the body. It ensures a stable connection between the wiring harness and the lamp, which translates to reliable operation of rear and brake lights and correct communication with the vehicle's electronics. A used OEM component is a sensible choice for drivers who want to maintain the factory specification of the lighting system in their Mercedes.

Specifications and technical data

• SKU: A0375453528-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0375453528
• Substitutable numbers: A0375453528, A 037 545 35 28, A2038205264, A 203 820 52 64
• Location on the vehicle: Rear, Right
• Category: Rear Light Assemblies

Purpose and Function in the Lighting System

The presented plug with wire and lamp socket is a component from the Rear Lights and Brake Lights category, responsible for the electrical connection of the right rear lamp to the vehicle's system. Its placement on the vehicle, specified as rear – right side, means the part works with the right rear lamp, handling signals such as the position light, brake light, or turn signal, according to the specific lamp's configuration.

Thanks to the factory connector geometry and proper wire routing, installation is organized, and the harness is not exposed to excessive stress or twisting. This is important for the durability of the system and the stability of electrical parameters.

Why Use an Original Mercedes Lamp Socket

Using an original lamp socket in Mercedes models allows for consistency throughout the entire electrical system. In practice, this means:

• factory-matched plug shape to the lamp and body harness,
• appropriate contact resistance to the current loads typical for rear lights,
• maintenance of correct pin order and connection logic,
• reduced risk of errors in lighting control systems.

For the user, this translates to stable operation of the rear lights, no bulb failure warnings, and a lower risk of technical inspection issues due to malfunctioning lighting.

Assembly and Operational Characteristics

The plug wire lamp socket for the right rear side has been designed for installation in factory mounting points. The appropriate wire length and connector layout facilitate routing the harness according to the original path in the CL203 coupé body. This helps avoid makeshift modifications, which often lead to problems with contact corrosion or insulation abrasion.

A used OEM part is a cost-effective solution that also allows for maintaining the original Mercedes electrical architecture. In many cases, it is a better alternative than universal connectors, which require cutting and soldering wires, increasing the number of potential failure points.

Practical Application in Service

This type of plug with a lamp socket is particularly useful in situations where the factory connector has been damaged due to a collision, contact corrosion, or improper previous repairs. Replacing the complete socket with a section of wire restores the correct electrical connection without needing to interfere with the lamp itself.

For workshops and services specializing in the Mercedes brand, this is a component that enables repairs to be carried out according to good service practices, maintaining system clarity and ease of future diagnostics.

Other Mercedes Rear Lighting Components

If you are upgrading or repairing the rear lighting system of your vehicle and also need other components related to lamps, harnesses, or connectors dedicated to this brand, check the available parts in the Mercedes Rear Lights and Brake Lights category.

For those interested in deepening their knowledge about selecting charging system components, OEM part compatibility, and practical pre-purchase checklists for used market components, the Global Parts article may be helpful: BMW Code B58 – Pre-purchase Checklist for Turbocharger and Intercooler for BMW 3 Series (G20).