The Audi A4 S4 B7 8E built on the success of it predecessor B6, introducing new engine ranges, suspension geometry, steering settings, navigation aids and electronics, (including the advanced Bosch ESP 8.0 programme). It remained in production between 2005 and 2008. The lighting technology used in this car is however more than 10 years old today.
Factory-fitted options included H7/H7 halogen and D1S/H7 bi-xenon headlights, all made by Automotive Lighting.
The halogen version features a H7 reflector, which produces an average light beam even when new. In many cases, its light output has been further compromised as bulb heat and general ageing cause the reflective layer to peel off.
The bi-xenon setup features a 3.0-inch projector, designed in the late 90s. These projectors are known to lose their reflective layer right to the point where they become black inside, causing dangerously low light output.
It seems the first (2006) convertible models used D2S bulbs.
So when you have a convertible, please check which bulbs you have for the correct kit. Later models use D1S bulbs, and the same kit as the other A4 B7 models can be used.
Needless to say, buying new or used original headlights for your Audi A4 B7 is not recommended. But there is fortunately no need for that. Whether your car was factory-fitted with H7/H7 halogen or D1S/H7 bi-xenon headlights, there are upgrade kits that will fit inside your existing headlights.
These complete retrofit kits not only provide you with superior brightness and durability; they are also more affordable than average Audi A4 B7 xenon headlights with bulbs and ballasts, and since all components are brand new, they come with a 2-year warranty. Additional benefits over OEM headlights include Canbus-proof designs and effortless halogen-to-xenon conversions. What’s more, the levelling systems will work without any adjustments to the headlight connectors, and you can use any ballasts that you might already own to save further on xenon upgrades.
No matter which retrofit upgrade kit you pick, you will improve the light output considerably, making for safer and more enjoyable driving. And, of course, your Audi A4 B7 will look awesome with the luxurious bright light of the latest xenon technology.