BMW Z4 Series E89 Antenna Base 9140245 65209140245

BMW Z4 Series E89 Antenna Base is an original antenna base designed for installation in the rear body section of the BMW Z4 E89. This component is responsible for the stable mounting of the roof antenna and proper signal routing, which translates into reliable operation of radio and communication systems. This is a solution for users who want to maintain the vehicle's factory specifications and the integrity of the antenna installation.

Specifications and technical data

• SKU: 9140245-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9140245
• Substitutable numbers: 65209140245, 9140245, EM
• Location on the vehicle: Rear
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and function in the BMW Z4 E89

The antenna base in the BMW Z4 E89 is a component mounted in the rear part of the body, responsible for rigid antenna seating and protecting the connector from external factors. A properly selected antenna base allows for maintaining the factory mounting geometry, which is important for signal reception quality and the tightness of the roof or cover where the antenna is seated.

Using an original antenna base is particularly important in roadster-type vehicles, such as the Z4 E89, where the design of the roof and the rear body section is precisely matched to the specific type of antenna and its mounting.

Construction and mounting fitment

The presented antenna base has been designed specifically for use in the rear body zone of the BMW, taking into account the characteristic roofline and trunk lid of the Z4 E89 model. The properly shaped foot ensures:

• stable antenna mounting at the designated installation point,
• proper sealing of the hole in the bodywork,
• compatibility with the factory antenna wiring harness.

By maintaining the original mounting geometry, replacing a damaged base with this type of component allows you to avoid modifications to the bodywork or electrical installation, which is beneficial both in terms of technical and aesthetic aspects.

Characteristics of the used component

The offered antenna base is a used component, sourced from dismantling, which allows for maintaining factory specifications while optimizing repair costs. This type of component is a good choice in situations where there has been mechanical damage to the antenna or its mounting, and the vehicle owner wants to restore the original technical condition without using replacements with uncertain fitment.

A used OEM antenna base is a solution that allows you to maintain the consistency of the antenna installation with the vehicle's other systems, including the factory radio, navigation, or other communication modules, if present in the car's specific configuration.

Application in the rear of the vehicle

The placement of the antenna base in the rear of the BMW Z4 E89 requires a component with a properly selected design, resistant to water, UV radiation, and vibrations transmitted from the body. Using the correct antenna base in this area:

• reduces the risk of leaks at the point of passage through the bodywork,
• ensures antenna stability at higher speeds,
• allows for maintaining the original stylistic line of the rear body section.

For users who care about the technical and visual condition of the vehicle, installing a properly selected antenna base is an important element of a comprehensive repair of the rear roof area or trunk lid.

Technical support and related content

If you are planning a comprehensive repair or upgrade of the rear zone in your BMW and need other components from the same group, such as mounts, brackets, or small mounting elements, check out the available parts in the Other BMW category.

For drivers interested in comparing technical solutions used in different brands and models, including sports versions of cars, an article discussing the differences in engine, braking system, and chassis construction may be helpful – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.

If you want to learn more about the advantages of using original, used components in vehicle repairs, it is also worth reading the material describing the importance of OEM parts and their impact on safety and repair durability: Quality guarantee and OEM safety – why are used original car parts the best choice for your car?.

Summary

BMW Z4 Series E89 Antenna Base is a practical solution for BMW Z4 E89 owners who want to restore the efficiency and aesthetics of the factory antenna installation in the rear of the vehicle. A properly selected, original antenna base supports stable mounting, correct signal routing, and maintenance of body tightness, which is important both for the comfort of using multimedia systems and for the overall technical condition of the car.