BMW Z4 E85 Roadster Convertible Wind Deflector Protection Centre 7117746

The BMW Z4 E85 Roadster Convertible Wind Deflector Protection Centre is an original body component from the Wind Deflectors category, designed specifically to improve driving comfort with the top down. It effectively reduces air turbulence in the cabin, which translates into a quieter ride, better audibility of conversations, and higher acoustic comfort at higher speeds.

Specifications and technical data

• SKU: 7117746-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7117746
• Substitutable numbers: 7117746, 54347117746
• Category: Sun Visors, Wind & Bug Deflectors

Purpose and function in the BMW Z4 E85

The presented wind deflector is factory-fitted to the design of the BMW Z4 E85 roadster, allowing it to work with the vehicle's original body geometry and factory mounting points. Its task is to direct the airflow over the cabin to minimize turbulence behind the seats and reduce drafts from the rear of the vehicle.

In practice, this means a more stable airflow when driving with the top down, which improves thermal comfort, reduces driver and passenger fatigue, and allows for longer use of the convertible mode in cooler conditions. This is particularly important in sports-oriented cars, where driving with the top down is a key part of the experience.

Construction and body fitment

The deflector has been developed as an OEM component, which ensures precise fitment with the factory guides and mounts in the rear cabin area. The design is optimized for the aerodynamics of the BMW Z4 E85, meaning it does not require any modifications or additional adapters when installed in a compatible vehicle.

This solution reduces the risk of unwanted vibrations, looseness, or noise while driving. At the same time, the full functionality of the convertible roof mechanism is maintained, and the deflector does not interfere with the body lines or the operation of moving parts. This is important from the point of view of durability and operational safety.

Performance characteristics and installation benefits

As an item from the Wind Deflectors category, the wind deflector in a roadster serves several important functional purposes:

• reduction of air turbulence in the cabin when driving with the top down,
• reduction of wind noise, which improves the comfort of conversations and audio system listening,
• reduction of drafts around the neck and shoulders, which increases thermal comfort,
• more stable airflow at higher highway speeds.

The used OEM component also offers installation benefits – the original geometry and compatibility with factory mounting points are preserved, which facilitates installation in the vehicle. For BMW Z4 E85 owners, this means the ability to restore the full functionality of the wind protection zone without the need for universal solutions.

Why choose a used OEM part

In the case of aerodynamic components such as wind deflectors, it is crucial to maintain the original geometry and structural rigidity. A used OEM part ensures compliance with the vehicle manufacturer's design, which translates into predictable airflow behavior and proper fitment to the body. This is especially important in roadster-class cars, where cabin aerodynamics have a direct impact on driving comfort.

If you want to better understand when choosing a used original part is more beneficial than a replacement, it is worth checking out the practical tips in the article 5 reasons why a used OEM part is a better choice than a replacement. You will find concrete examples and simple criteria for selecting parts in terms of quality and cost-effectiveness.

Expanding the BMW airflow zone upgrade

If you are planning a comprehensive repair or upgrade of the airflow zone around the windows in your BMW and need other components from the same group, such as additional wind deflectors, wind guards, or airflow directing panels, check out the available parts in the BMW Wind Deflectors category.

Summary

The BMW Z4 E85 Roadster Convertible Wind Deflector Protection Centre is a functional, factory-fitted component from the wind deflector group that significantly improves the comfort of driving with the top down. The original OEM design ensures proper cooperation with the body, stable mounting, and predictable aerodynamic behavior, making this deflector a sensible choice for restoring the full functionality of the BMW Z4 E85 roadster.