Hella 6411TB Courtesy Light Bulb

Hella 6411TB Courtesy Light Bulb

The Hella 6411TB is a 12V 10W incandescent courtesy light bulb built for interior lighting applications that need a Festoon Cap base and T3.25 bulb format. It is a direct-fit style replacement for a wide range of vehicles, including BMW, Mercedes-Benz, Volkswagen, Audi, and more.

For drivers searching for a courtesy light bulb replacement for BMW 640i, Mercedes-Benz CLA250, or Volkswagen Golf interior lighting, this Hella bulb provides the correct electrical and base specifications for listed applications. The 6411TB part number is also a useful reference when matching interior bulb requirements by vehicle fitment.

Key Features

• 12V electrical rating for automotive interior lighting systems
• 10W incandescent bulb output
• Festoon Cap bulb base type
• T3.25 bulb type
• Hella lighting component backed by more than 100 years of automotive manufacturing experience
• Fits a broad range of interior courtesy light applications across multiple makes and model years

Product Details

The Hella 6411TB courtesy light bulb is specified as a 12-volt, 10-watt incandescent bulb with a Festoon Cap base and T3.25 form factor. That combination makes it a practical replacement for interior courtesy, trunk, and cabin lighting applications where the vehicle calls for this bulb style. Hella’s long history in automotive lighting and electronics supports consistent component engineering for OE-style replacement needs. The 6411TB is a strong fitment reference when selecting an interior bulb for vehicles such as Audi A5 Quattro, BMW X3, Mercedes-Benz GLA250, and Volkswagen Tiguan.

Common Issues This Bulb Can Address

• Dim or failed interior courtesy lighting
• Burned-out trunk or cargo-area bulb
• Inoperative cabin accent or map-style interior light
• Incorrect bulb base or wattage during replacement
• Restoring factory-style interior illumination after bulb failure

Installation Notes and Tips

Verify the vehicle’s bulb specification before installation and match the base type, voltage, wattage, and bulb shape to the original part. Confirm the socket style listed in the fitment notes, especially on vehicles that specify SV8.5-8. Handle the bulb carefully during installation and avoid touching the glass with bare hands.

Fits 2018-2020 Buick Encore, N/A; Fits 2020 Buick Encore GX, N/A; Fits 2017-2020 Chevrolet Sonic, N/A; Fits 2017-2020 Chevrolet Trax, N/A; Fits 2018-2020 Fiat 124 Spider, N/A; Fits 2018-2020 Mercedes-Benz GLA250, N/A; Fits 2018-2020 Rolls-Royce Ghost, N/A; Fits 2018-2019 BMW 640i Gran Coupe, N/A; Fits 2018-2019 BMW 650i xDrive Gran Coupe, N/A; Fits 2018-2019 Volkswagen Golf R, N/A; Fits 2018 Audi Q5, N/A; Fits 2018 Porsche Cayenne, N/A.

Quality Assurance

Hella is a global automotive parts manufacturer with extensive research and development resources and a long-standing reputation in lighting and electronic components. The 6411TB reflects that background with a specification-driven design for interior lighting replacement.