Phillips T4WLLB2 Dome Light Bulb - Front or Rear

Reliable Dome Light Bulb for Audi, BMW, and Mercedes-Benz

The Phillips LongerLife - Twin Blister Pack T4WLLB2 dome light bulbs provide consistent interior lighting for a range of European vehicles. Designed to meet the specific electrical requirements of models like the Audi A6, BMW 318i, and Mercedes-Benz 300SE, these bulbs ensure clear illumination with a longer lifespan.

• 12 Volt incandescent dome light bulb with 4-watt power rating
• Clear glass bulb with Ba9s base for secure fitment
• Single filament (C-2v) design for reliable lighting
• Compact size: 0.35 inch diameter and 0.85 inch length
• Compatible with multiple makes including Audi, BMW, Ferrari, Jaguar, Land Rover, Mercedes-Benz, Porsche, Saab, Volkswagen, and Volvo

About the Phillips LongerLife - Twin Blister Pack

The LongerLife - Twin Blister Pack from Phillips offers a convenient two-pack of mini dome light bulbs engineered for extended service life. This product line focuses on durability and consistent performance, making it suitable for interior lighting applications in premium vehicles. The twin pack format provides added value for maintenance and replacement needs.

Technical Details and Compatibility

The T4WLLB2 dome light bulb operates at 12 volts with a 0.33 ampere rating, delivering 4 watts of incandescent light through a single filament. Its clear glass construction and Ba9s base type ensure compatibility with a wide range of European car models. This bulb is designed for interior lighting applications such as dome lights, map lights, and courtesy lights in vehicles including the Audi A6 Quattro, BMW 320i, and Mercedes-Benz 380SEL.

Common Applications and Problem Solving

• Replacement for burnt-out or dim interior dome lights
• Restores proper illumination in map and courtesy lights
• Improves visibility inside the vehicle cabin during nighttime
• Ensures consistent lighting performance in older European models
• Addresses flickering or intermittent interior light issues

Installation Notes and Tips

When installing the Phillips T4WLLB2 dome light bulb, ensure the vehicle’s electrical system is off to prevent short circuits. The Ba9s base requires a simple push-and-twist motion for secure placement. Verify bulb orientation to avoid filament damage. This bulb is designed for direct replacement without modification in compatible Audi, BMW, and Mercedes-Benz models.

Quality Assurance and Warranty

Phillips dome light bulbs are manufactured to meet strict quality standards for automotive lighting. While this product is not DOT approved, it is engineered for reliable interior use. The LongerLife - Twin Blister Pack offers consistent performance backed by Phillips’ quality control processes. Warranty details should be confirmed with the point of purchase.