Lamp Plug BMW E90 Socket Wiring Cable Light Lamp Rear Left 7505270

BMW E90 Tail Light Wiring Harness Connector Left Rear Lamp is an item from the Modules and Harnesses category, designed for the left rear lamp in BMW 3 Series E90 vehicles. Properly selected wiring ensures a stable electrical connection, correct lighting operation, and safe vehicle use. This is a practical solution for users who want to restore full lighting system functionality without altering the factory installation.

Specifications and technical data

• SKU: 7505270
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7162301
• Substitutable numbers: 7162301, 63217162301, 7505270
• Location on the vehicle: Rear, Left
• Category: Wiring, Harnesses & Connectors

Purpose and Function of the BMW E90 Left Rear Lamp Harness

The presented harness with connector is dedicated for installation in the area of the left rear lamp in the BMW 3 Series E90 body. It is responsible for transmitting electrical signals to individual lighting sections, such as parking lights, brake lights, or turn signals, according to the configuration used in a particular vehicle. Thanks to its factory fit for BMW installations, the wiring allows for maintaining the correct pin order and a stable connection with the lamp and the rest of the car's electrical system.

Construction, Connectors, and Installation Compatibility

The harness belongs to the group of elements referred to as modules and harnesses, meaning it is designed to work with factory BMW control units and electrical systems. The connectors used are prepared for direct connection to the left rear lamp and the corresponding parts of the body's installation, without the need for wire modifications or additional adapters.

The wire routing and connector design are adapted to the geometry of the E90's rear body, which facilitates guiding the harness through original grommets and brackets. This solution reduces the risk of insulation abrasion, accidental connector disconnection, and moisture problems around the lamp.

Benefits of Using an Original BMW Harness

Using a harness specifically designed for the BMW E90 offers a number of practical advantages:

• Factory Electrical Fit – compatibility with BMW installation parameters minimizes the risk of lighting malfunctions.
• Appropriate Wire Length – the harness is prepared for routing in the original mounting points in the rear of the body.
• Stable Connectors – the connector designed to work with the left rear lamp reduces the risk of contact looseness and circuit interruptions.
• Operational Safety – properly functioning rear lights increase vehicle visibility and comply with road regulations.

This makes the harness suitable for both repairing damaged wiring and replacing a lamp with one that is compatible with the factory installation.

Condition, Origin, and Practical Application

The item is from a dismantled vehicle and is offered as a used BMW harness, which is a cost-effective solution while maintaining compatibility with the original installation. This type of wiring is particularly useful in situations where wires have been damaged due to corrosion, overheating of contacts, improper repairs, or installation modifications for non-factory lamps.

In practice, the harness allows for:

• restoring correct operation of the left rear lighting,
• eliminating errors related to an open circuit in the lamp,
• tidying up the installation after previous, unprofessional modifications.

How to Choose the Right Harness and Where to Find More Information

When selecting a harness for the BMW E90, it is worth paying attention to compatibility with the specific body version and lamp configuration. It is helpful to compare the shape of the connector, the number of wires, and how the wiring is routed in the car. If in doubt, you can refer to service documentation or consult a car electrician to ensure the chosen part will work with the existing installation.

If you are looking for other items from the BMW Modules and Harnesses category, check out the BMW modules and harnesses available in our store to find complete solutions for your car.

More practical tips on operating electronics and installations in this brand's cars can be found in the article Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models Using Used Parts?, which describes, among other things, the use of used components in professional repairs.

If you are considering whether new or used parts would be a better choice for your situation, the guide Car Parts – New or Used? Comparing Costs, Quality, and Durability, which discusses the differences between these solutions in terms of economy and durability, may be helpful.