BMW F20 F21 Side Panel Light Lamp Bulb Holder Socket Rear Left N/S

Visual condition of the part

The product shows signs of use visible in the photos.

BMW F20 F21 Side Panel Light Lamp Bulb Holder Socket Rear Left N/S is an original rear lighting system component, designed for installation on the left side of the F20/F21 series body. Thanks to its factory design, it ensures proper bulb seating, a stable connection with the electrical harness, and rear lamp operation that complies with standards. It is a practical solution when replacing a damaged socket or repairing the lighting system.

Specifications and technical data

• SKU: 7315199
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7315199
• Substitutable numbers: 7315199, 63217315199
• Location on the vehicle: Rear, Left
• Category: Light Bulbs & LEDs

Purpose and function of the bulb holder

The presented socket is a component of the driver-side rear lamp, responsible for mechanically holding the bulbs and providing their electrical connection to the vehicle's system. The design, tailored to the F20/F21 series, allows for:

• secure seating of the appropriate bulb types in the rear lamp,
• maintaining the correct position of light points (position lights, brake lights, turn signals – according to the specific lamp configuration),
• a stable connection with the factory BMW wiring harness,
• reducing the risk of loose contacts and associated lighting errors.

By maintaining the original geometry, the socket works with the factory rear lamp, which facilitates installation and subsequent operation.

Benefits of using an original BMW socket

Using an original bulb holder in the BMW F20/F21 series rear lamp translates into a number of practical advantages:

• Factory fit – compatibility with the lamp shape and mounting points in the body is maintained.
• Proper cooperation with the electrical system – connectors and conductive paths are designed according to BMW specifications.
• Reduction of issues with light error messages on the dashboard resulting from poor contact.
• The ability to use the existing harness without modifications, which helps maintain the integrity of the installation.

This solution is particularly beneficial for post-collision repairs, mechanical damage to the lamp, or problems with intermittent rear lighting.

Installation and operational characteristics

The bulb holder is intended for installation in the rear lamp on the left side of the vehicle. The support structure and the arrangement of mounting points are adapted to the factory lens, which enables:

• installation in place of the damaged component without additional adapters,
• maintaining the original position of the bulbs relative to the reflectors and the lens,
• easy removal in case of service or bulb replacement.

The component should be treated as part of the lighting system responsible for the safety and visibility of the vehicle on the road, which is why it is important to keep it in proper technical condition.

Condition and practical application

The offered socket comes from the Lamps and LED lights group and is intended for re-installation in BMW F20/F21 series cars. It works well both for standard replacement of a damaged component and for comprehensive repair of the rear lamp after mechanical interference or contact corrosion. Choosing an original solution allows you to maintain the consistency of the lighting system and facilitates the diagnosis of potential faults in the future.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your BMW and need other elements from the same group, such as housings, modules, or complete lamps, check the available parts in the BMW Lamps and LED lights category.

More about selecting and operating BMW lighting

When working with the rear lamp, it is worth paying attention to the general condition of the lighting system, the selection of appropriate bulbs, and compatibility with factory light control systems. To deepen your knowledge on the selection and replacement of lighting components, including LED solutions used in BMW, the following article will be helpful: See more and better – a complete guide to selecting and replacing used LED and Xenon headlights. This will make it easier for you to plan service work and ensure the proper operation of the entire lighting system in your car.