BMW Z4 E85 Third Stoplight Brake Light Red 6917378

BMW Z4 E85 Third Stoplight Brake Light is an original component from the Main and center brake lights group, designed for installation in the BMW Z4 E85 model. The red lens provides a clear braking signal, improving safety while maintaining a consistent look for the rear of the vehicle.

Specifications and technical data

• SKU: 6917378
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6917378
• Substitutable numbers: 63256917378, 6917378
• Color: Red
• Category: Centre & Third Brake Light Assemblies

Purpose and function of the third brake light

The third brake light in the BMW Z4 E85 plays an important role in communicating with other road users, increasing the visibility of the braking signal at the eye level of drivers behind you. This improves the clarity of light signals, which is especially important when driving in heavy traffic or adverse weather conditions.

This element is designed as an integral part of the rear lighting system, working in conjunction with the main brake lights and maintaining the factory lighting characteristics. Using an original design ensures compliance with homologation requirements and the manufacturer's safety standards.

Construction, color, and fitment

The red color of the lens is chosen to provide a clear, high-contrast light signal and consistency with the other rear lamps. This preserves the characteristic, aesthetic appearance of the BMW Z4 E85, while ensuring the driver receives a clear indication of the braking system's operation.

The original BMW origin means precise fitment to the body, proper sealing, and compatibility with the factory electrical system. Installation is straightforward, without the need for modifications, which reduces the risk of leaks or mounting issues.

Condition, application, and benefits of installation

The offered item is in used condition, which allows for an economical replacement of a damaged or leaking third brake light while maintaining the manufacturer's original specifications. This is a practical solution for users who want to restore full functionality to the lighting system without investing in a new component.

Replacing a worn or cracked light with a functional element from the same group allows you to:

• restore proper visibility of the braking signal,
• maintain a consistent look for the rear of the vehicle,
• maintain compliance with regulations regarding lighting efficiency.

Integration with other brake lights

The third brake light works with the main brake lights to create a complete braking signaling system in the BMW Z4 E85. Using an original component from the Main and center brake lights group helps avoid problems with differences in color, light intensity, or optical matching to other lighting 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 brake lamps, center light modules, or complete lamp assemblies, check the available parts in the BMW main and center brake lights category.

Practical installation and maintenance tips

During installation, it is worth paying attention to the condition of the seals and the correct routing of wires to prevent moisture from entering the lamp and the installation. It is also recommended to check the operation of the entire brake system after installation – uniform illumination of all light points indicates that the system is working correctly.

If you are also planning to refresh your car's interior and are interested in vehicle personalization using used components, check out the article Car interior tuning with Global Parts, where you will find practical inspiration regarding second-hand seats and steering wheels.