Reflector Lamp BMW G30 G31 M Sport Rear Bumper Red Left N/S 7851577

Visual condition of the part

The product shows signs of use visible in the photos.

Reflector Lamp BMW G30 G31 M Sport Rear Bumper Red Left N/S is an original component from the Reflector lights group, designed for installation in the rear part of the vehicle body on the driver's side. It ensures clear marking of the vehicle's outline, improving the car's visibility after dark and in difficult weather conditions. Thanks to its factory fit, it is a practical solution for post-accident repairs or replacing worn-out passive lighting elements.

Specifications and technical data

• SKU: 7851577
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7851577
• Substitutable numbers: 7851577, 63147851577
• Location on the vehicle: Rear, Left
• Color: Red
• Category: Reflectors

Purpose and function in the vehicle

The presented reflector is designed for installation in the rear zone of the bumper on the left side, which allows for maintaining the factory geometry of passive lighting in BMW F80 M3 and F82 M4 models. This element plays an important role in passive safety – it increases the vehicle's visibility to other road users, especially when parking, performing night maneuvers, and while driving in rain or fog.

The reflector operates without electrical power, utilizing light reflection from external sources (e.g., headlights of other vehicles). As a result, it is a maintenance-free solution, and its proper visual condition has a direct impact on its effectiveness.

Color and optical fit

The element is made in a uniform red color, consistent with the typical marking of the vehicle's rear zone. This color provides a clear contrast against the surroundings and is easily recognizable to other drivers. The reflector's construction has been prepared with the intention of maintaining a consistent stylistic line with the rear bumper and other lighting components, which allows for aesthetic integration into the bodywork without the need for additional modifications.

The factory fit of the shape and mounts facilitates installation in the place intended by the vehicle manufacturer, without interfering with the bumper structure. Thanks to this, the reflector can be used both when replacing a single element and during more extensive body and paint work.

Installation and usage characteristics

The reflector is intended for installation in the rear part of the vehicle on the left side, in the factory bumper socket. With proper installation, the following are maintained:

• visual consistency with the line of the bumper and taillights,
• the correct angle of light reflection,
• stable seating of the element in the bodywork.

As a used part, the reflector is a reasonable choice for repairs where a combination of functionality and cost control is important. This allows for restoring the vehicle's proper visibility without the need to reach for more expensive solutions.

Benefits of using an original BMW reflector

Using an original reflector in a BMW F80 M3 / F82 M4 allows for maintaining compliance with the manufacturer's factory assumptions regarding safety and styling. Key advantages include:

• secure fit to the rear bumper – no need for mount modifications,
• maintaining a uniform optical line with other lighting elements,
• appropriate color and light reflection characteristics, supporting vehicle visibility.

Thanks to this, the reflector will work well both for standard replacement of a damaged element and for more extensive service work in the rear part of the body.

Knowledge expansion and part selection

If you want to better understand how to select used components based on manufacturer markings, compatibility, and technical parameters, useful information can be found in the Global Parts guide: used automotive electronics – how to consciously choose modules and sensors. Although the article mainly concerns electronics, the principles of analyzing markings and fitment described there can also be used when selecting other vehicle equipment elements.

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 additional reflectors, mounting elements, or supplementary optical components, check the available parts in the BMW Reflector lights category.