Roof Antenna BMW F20 F21 F31 Empty Housing Aerial Spacegrau - A52 2218150

Visual condition of the part 

The product shows signs of use visible in the photos. 

Roof Antenna BMW F20 F21 F31 Empty Housing Aerial Spacegrau - A52 is an original rear roof antenna housing designed for BMW F-series models, ensuring a consistent body appearance and factory-fit quality. The Spacegrau Metallic - A52 colored component allows for the aesthetic replacement of a damaged or worn housing without interfering with the roof structure. By maintaining the original geometry, the housing supports the proper operation of the antenna module mounted inside.

Specifications and technical data

• SKU: 2218150-SCG
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2218150
• Substitutable numbers: 2218150, 65202218150
• Location on the vehicle: Rear
• Color: Spacegrau Metallic - A52
• Category: Antennas

Purpose and function of the roof antenna housing

The roof antenna housing in BMW F-series models serves a dual role: it protects the antenna module from external factors and is responsible for the orderly routing of radio, navigation, or communication signals. The version dedicated to rear roof mounting is designed to:

• ensure stable seating of the antenna in the factory mounting point,
• limit the exposure of connectors and cables to moisture and dirt,
• maintain the correct angle and position of the antenna module relative to the bodywork.

As a result, replacing the housing itself is an effective solution in the event of mechanical damage, scratches, or cracks, without the need to interfere with the vehicle's electrical system.

Spacegrau Metallic - A52 color and visual fit

The Spacegrau Metallic - A52 color is a factory shade used in many BMW F-series vehicles, which allows for maintaining a uniform stylistic line of the body. The use of original metallic paint translates into:

• color consistency between the antenna housing and the roof surface,
• reduction of differences in gloss and paint coating structure,
• aesthetic appearance of the vehicle after repair, without the need for additional painting.

For users who care about the visual condition of the bodywork, this is a practical solution that allows restoring the roof's appearance to a state close to the factory original.

Mounting characteristics and the rear zone of the vehicle

The roof antenna housing intended for the rear of the vehicle has been designed for precise fitment with the roof contours. Proper shape matching facilitates:

• correct sealing of the contact between the housing and the roof panel,
• maintaining factory aerodynamics in the rear zone of the body,
• reducing air noise at higher speeds.

In practice, the installation comes down to replacing the component while utilizing the existing mounting point, which is beneficial both for accident repairs and for replacing a worn housing after years of operation.

Used condition – practical benefits

The presented roof antenna housing is a secondary market component, which allows for significant cost savings on repairs while maintaining the manufacturer's original specifications. For many BMW users, this is a reasonable compromise between price and fit, especially in the case of spot repairs where maintaining the factory look of the roof is key.

If you want to better understand the differences between original, replacement, and used parts in terms of cost-effectiveness, quality, and selection by OEM numbers, it is worth reading the article: Original, replacement, or used – which car parts are the most cost-effective?

Expanding repairs in the area of BMW antennas and accessories

If you are planning a comprehensive repair or modernization of the roof area in your BMW and need other elements from the same group, such as additional housings, bases, or antenna modules, check the available parts in the BMW car antennas category.

In the case of broader bodywork projects and replacing several body components from the secondary market, a guide describing how to select used body parts to achieve the best possible visual effect may also be helpful: Replacing body parts with used ones – can salvaged body parts look like new?