I'm stuck... im doing the A8 conversion early 2005 to 2007/08 . I bought everything I needed hood, bumper, grill the only thing is the headlights have different plugs...

my early 2005 audi a8 have 2005 headlights on them ( the 2004-2005 style)

I bought 2007 headlight on ebay to do the conversion the plugs are different. there are 2 ballast on the headlight. the HID Xeon ballast perfert, the other ballast half the plugs are the same the other half are different. Also where you plug the wiring harness in it's also different..

How did people do this coversion????

Please help me asap my audi a8 is in the shop and everyday im without a car

 

To this means stripping down the new and old lamps and making 2 to fit the new front.

here is the standard light with xenon low beam and normal halogen high beam and halogen turn lamp between with the plastic cover removed .



A dremel was used to cut the plastics apart




The original lights i cut the clear plastic lens as this was not going to be used and cut the backing of the new lamps as this is not going to be used either .

original light saved backing and damage front cover



this stage both lights A8 and S8 stripped down ready to make one correct light .



The is the new s8 lamp with front cover removed and casing damaged so to save the s8 front cover to fit over original lamp .



same light with led daylight running lamp removed




The end results goes like this ,

Used original backing as keeps fitment , and wiring connectors correct for car ,
removed the daylight 5 led lamp and xenon lamp (as this is high and low beam due to led lamp is where the high used to be so is bi operation (hi and low)) from S8 new lights ,

Made the S8 lamps fit into original backing and modified wiring inside the lights to all function correctly .

Lastly bonded the new S8 lens cover to original backing incasing the S8 workings and lamps .

To look like this



You would never know that it's not factory.




The next problem was solving the warning light on start up on the dash board , this is because the A8 standard light has a high resistance 5w side light bulb , and was also looking for a high resistance 55w high beam bulb , which in their place was lower resistance LEDs and xenon high beam .

The solution was to use heat sink resistors of the right values to tell the dash computer that the bulbs the correct ones .

 

thank you for this post.. u are a life saver. I tried baking the lens at 200 degrees for 10 mins and could not take the lens off. the glue they use would not separate the lens and plastic.. I will try this.. thank you.. my a8 soon to look like and s8 has been in the shop for so long trying to figure out this problem I was stuck on. thank man so much again you rock

 

Hey GregoryC

Have a new pics of the A8/S8?