B8.5 A4/S4 Replacement DRL Boards
These boards are a replacement for the aging LEDs in the daytime running lights for the B8.5 A4/S4. If your headlights are showing signs of discoloration, or yellowing, these boards will restore them to look factory fresh. I’ve spent several years trying to develop these boards in my free time and have finally managed to bring them to market. For the last several months I’ve been running prototype versions of these boards in my own car and have done extensive testing to ensure that these boards will be a great replacement for your DRLs. The replacement LEDs are identical to the ones used on OEM boards. They have a color of 5650k with circuitry and secondary components which have been reverse engineered to be compatible with the factory DRL driver, so you won’t get any bulb errors after install. The kit also includes the thermal paste, which needs to be applied to the heatsink, to ensure proper heat transfer from the aluminum PCB to the factory DRL heat sinks. Image 2 is provided to show you the difference between my new boards and factory installed boards installed on my 2013 S4. My vehicle has ~85,000 miles and both of my headlight’s were beginning to yellow. On the drivers side fresh boards have been installed while the factory boards remain installed on the passenger side. The last picture also shows what a failing LED looks like. In 2019 my own car had one LED go bad and turn a terrible shade of yellow, I replaced it with a module harvested from broken headlights, which is how I started this adventure of developing new DRL boards.
Some people have reported that just replacing the light tubes is enough to restore the color of their DRLs. The best way to check if this will work is to disassemble your headlights and remove the shroud with light tubes. Then you can reinstall your headlights without the light tubes temporarily to check LED color. In image 4 you will see a good LED on the left, and a bad LED on the right. The good ones look bright white, and almost purple while a bad one will have a noticeable yellow hue. If all your LEDs look normal you can order replacement tubes from AliExpress here: https://a.aliexpress.com/_mK1g3dq
Disclaimer: These boards require disassembly of your headlights. I have provided an instruction manual which I urge you to read before purchasing this product. It provides an overview of the install procedure for a DIYer, but I can take no responsibility for damage you may cause during the installation of these boards.
These boards are a replacement for the aging LEDs in the daytime running lights for the B8.5 A4/S4. If your headlights are showing signs of discoloration, or yellowing, these boards will restore them to look factory fresh. I’ve spent several years trying to develop these boards in my free time and have finally managed to bring them to market. For the last several months I’ve been running prototype versions of these boards in my own car and have done extensive testing to ensure that these boards will be a great replacement for your DRLs. The replacement LEDs are identical to the ones used on OEM boards. They have a color of 5650k with circuitry and secondary components which have been reverse engineered to be compatible with the factory DRL driver, so you won’t get any bulb errors after install. The kit also includes the thermal paste, which needs to be applied to the heatsink, to ensure proper heat transfer from the aluminum PCB to the factory DRL heat sinks. Image 2 is provided to show you the difference between my new boards and factory installed boards installed on my 2013 S4. My vehicle has ~85,000 miles and both of my headlight’s were beginning to yellow. On the drivers side fresh boards have been installed while the factory boards remain installed on the passenger side. The last picture also shows what a failing LED looks like. In 2019 my own car had one LED go bad and turn a terrible shade of yellow, I replaced it with a module harvested from broken headlights, which is how I started this adventure of developing new DRL boards.
Some people have reported that just replacing the light tubes is enough to restore the color of their DRLs. The best way to check if this will work is to disassemble your headlights and remove the shroud with light tubes. Then you can reinstall your headlights without the light tubes temporarily to check LED color. In image 4 you will see a good LED on the left, and a bad LED on the right. The good ones look bright white, and almost purple while a bad one will have a noticeable yellow hue. If all your LEDs look normal you can order replacement tubes from AliExpress here: https://a.aliexpress.com/_mK1g3dq
Disclaimer: These boards require disassembly of your headlights. I have provided an instruction manual which I urge you to read before purchasing this product. It provides an overview of the install procedure for a DIYer, but I can take no responsibility for damage you may cause during the installation of these boards.
These boards are a replacement for the aging LEDs in the daytime running lights for the B8.5 A4/S4. If your headlights are showing signs of discoloration, or yellowing, these boards will restore them to look factory fresh. I’ve spent several years trying to develop these boards in my free time and have finally managed to bring them to market. For the last several months I’ve been running prototype versions of these boards in my own car and have done extensive testing to ensure that these boards will be a great replacement for your DRLs. The replacement LEDs are identical to the ones used on OEM boards. They have a color of 5650k with circuitry and secondary components which have been reverse engineered to be compatible with the factory DRL driver, so you won’t get any bulb errors after install. The kit also includes the thermal paste, which needs to be applied to the heatsink, to ensure proper heat transfer from the aluminum PCB to the factory DRL heat sinks. Image 2 is provided to show you the difference between my new boards and factory installed boards installed on my 2013 S4. My vehicle has ~85,000 miles and both of my headlight’s were beginning to yellow. On the drivers side fresh boards have been installed while the factory boards remain installed on the passenger side. The last picture also shows what a failing LED looks like. In 2019 my own car had one LED go bad and turn a terrible shade of yellow, I replaced it with a module harvested from broken headlights, which is how I started this adventure of developing new DRL boards.
Some people have reported that just replacing the light tubes is enough to restore the color of their DRLs. The best way to check if this will work is to disassemble your headlights and remove the shroud with light tubes. Then you can reinstall your headlights without the light tubes temporarily to check LED color. In image 4 you will see a good LED on the left, and a bad LED on the right. The good ones look bright white, and almost purple while a bad one will have a noticeable yellow hue. If all your LEDs look normal you can order replacement tubes from AliExpress here: https://a.aliexpress.com/_mK1g3dq
Disclaimer: These boards require disassembly of your headlights. I have provided an instruction manual which I urge you to read before purchasing this product. It provides an overview of the install procedure for a DIYer, but I can take no responsibility for damage you may cause during the installation of these boards.