BMW 3 Series E91 LCI Bulb Socket Rear Holder Light Side Panel Left N/S 7211217

BMW 3 Series E91 LCI Bulb Socket Rear Holder Light Side Panel Left N/S is an original rear lighting system component, designed for installation on the left side of the E91 facelift version. Thanks to its factory geometry and properly designed bulb sockets, it ensures a stable electrical connection and the correct operation of the position lights, brake lights, and turn signals.

Specifications and technical data

• SKU: 7211217
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7211217
• Substitutable numbers: 63217211217, 7211217
• Location on the vehicle: Rear, Left
• Category: Light Bulbs & LEDs

Purpose and function of the bulb socket

The presented bulb holder is the component responsible for the mechanical mounting of bulbs and their electrical power supply in the rear lamp on the driver's side. Its placement in the rear left part of the body allows for the proper operation of all legally required lighting functions in this area of the vehicle, which translates into clear signaling of maneuvers for other road users.

Properly shaped conductive paths and matched connector sockets minimize the risk of contact overheating and voltage drops, which is crucial when operating in conditions of high humidity and vibrations typical for the rear part of an estate car body.

Construction and fitment for BMW 3 Series E91 LCI

The socket has been designed specifically for the LCI version, ensuring it fits geometrically into the lamp housing used in this body variant. The arrangement of mounting points and connectors is consistent with the original BMW design, which facilitates installation and reduces the need for additional wiring modifications.

The original construction ensures:

• secure seating of the holder in the lamp body,
• proper routing of wires and connectors,
• stable connection with the vehicle's electrical harness.

As a result, replacing a damaged holder with this component allows for restoring the correct operation of the lighting without interfering with the vehicle's electrical system.

Benefits of using an original bulb holder

Using an original socket in a BMW 3 Series E91 LCI translates into a number of practical operational advantages. Above all, compatibility with the factory installation is maintained, which reduces the risk of errors in the vehicle's control systems and diagnostic issues.

Key benefits include:

• proper fitment to the rear lamp on the left side,
• correct arrangement of light points in accordance with homologation,
• easier bulb replacement thanks to the socket layout provided by the manufacturer,
• consistency with other lighting system components in the LED Lamps and Lights category.

Condition and service application

The item comes from dismantling and is offered as a used part, which is a cost-effective service solution for users looking for a factory component at a reasonable price. This type of holder is suitable both for post-collision repairs and for fixing malfunctions related to unstable operation of the rear lights on the left side.

Thanks to the preservation of the original design, it is possible to quickly restore full lighting functionality without the need to use replacements with uncertain fitment.

Technical support and related materials

To better understand the importance of properly functioning lighting in BMW vehicles and the principles of selecting components from the lighting group, it is worth reading the guide: Seeing more and better – a complete guide to selecting and replacing used LED and Xenon headlights. The article discusses practical aspects of choosing original lighting components and their impact on driving safety.

For users who want to efficiently restore full lighting functionality and reduce vehicle downtime in the service center, the following material may also be helpful: Availability of car parts off-the-shelf vs. repair time – how do used OEM parts shorten workshop stays?, describing the advantages of using readily available OEM components.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your BMW and need other items from the same group, such as bulb holders, control modules, or complete lighting assemblies, check the available parts in the BMW LED Lamps and Lights category.