Mercedes 7 PIN lamp connector A2115450328

Product Specification

Type: 7-pin connector for rear lamp

Catalog number: A2115450328

Condition: New, unused and packaged

Application: Compatible with selected Mercedes-Benz models

Mounting side: Rear, fits both left and right sides

Model: Suitable for C-Class models W204, W203, E-Class W211, S-Class W221, CLS C219, Maybach W240

What is the purpose of the rear lamp connector?

The connector is an electrical connection element between the vehicle's wiring harness and the rear lighting assembly. It can be used to repair a damaged or worn connection without the need to replace the entire lamp, provided the lamp itself and its housing are functional.

This is a part for repairing the lighting electrical system, not a control module or diagnostic device.

When should you check or replace the lamp connector?

• Visible melting, deformation, or cracking of the old connector's housing.
• Damaged latch and lack of secure connection of the connector.
• Corroded, rusty, or loose contact connections.
• Intermittent operation of the lights when the connector is moved.
• Recurring warnings about faulty lighting if diagnostics indicate a problem at the connector or in the lamp's wiring.

Important: such symptoms may also have other causes, e.g., a damaged socket, ground wire, bulb, or lamp electronics. The source of the fault should be identified before replacement.

Mercedes-Benz Reference Number

The number A2115450328 can also be found as A 211 545 03 28 or 2115450328. The original parts catalog from Mercedes-Benz describes this number as a rear lamp connector of type 7-PIN MCP 2.8.

This is a reference designation for the part and its application, not a guarantee of compatibility with every variant of the lamp found in a given car series.

How to confirm fit before ordering?

• Compare the number on the old part if it is legible.
• Check the shape of the housing, the arrangement of the contact sockets, and guides.
• Compare the position of the latch and how it fits into the lamp.
• Verify the type of lamp and the equipment of the specific vehicle.
• If in doubt, confirm the part number based on the VIN in the Mercedes-Benz catalog.

Note: mere compatibility of the car model or the number of contacts is not sufficient to guarantee the fit of the connector.

Basic Installation Tips

1. Turn off the ignition and secure the electrical system according to the vehicle's service manual.
2. Before disassembly, mark the position of each wire and take a photo of the old connector from the wire side.
3. Check the lamp contacts: if they are burnt or deformed, simply replacing the connector may not be enough.
4. If you are also replacing connectors, use contacts suitable for the specific socket and the appropriate tool for crimping them.
5. Do not change the order of connections; maintain the factory assignment of wires to individual contacts.
6. After installation, check the operation of all rear lighting functions and ensure there is no excessive heating at the connection.

It is recommended to entrust installation work to someone with experience in automotive electrical systems.

Connector Version vs. Kit with Pre-Wired Cables

This CCY offer pertains to the product named 7 PIN Lamp Connector Mercedes A2115450328. It should not be confused with a separate variant that includes a prepared wiring harness.

If you need a connector with factory pre-wired cables for installation repair, a separate item is available in the CCY store: 7 PIN Lamp Connector Mercedes A2115450328 with Wires, catalog number 330799.

Before purchasing the version without wires, check the photos and the content of the offer to see if the necessary connectors are included. Their number was not specified in the original product description.

Why is it worth replacing a damaged connector?

• The ability to repair the lamp connection without buying a complete lighting assembly if the other components are functional.
• Elimination of mechanical issues, e.g., cracked housing or faulty latch.
• The possibility of restoring stable contact after properly repairing damaged terminals and wires.
• Maintaining the factory method of connecting the lamp through a properly selected connector.

The effect of the repair depends on the condition of the entire installation and the correctness of the electrical connections made.

Frequently Asked Questions

Is it enough for the car to have a lamp with seven contacts?
No. The shape of the connector, latch, arrangement of contact chambers, and part number are also important.

Is this connector for the left or right lamp?
The original specification indicated both sides. Before purchasing, you should additionally compare the connector with the lamp socket in the specific vehicle.

Will replacing the connector remove the light failure message?
Only if the cause is the connection itself or damaged contacts, and the rest of the circuit remains functional.

Does version 330798 have pre-wired cables?
This is not a variant with a ready-made harness. The version with wires is available in CCY as a separate product 330799.