Hey there you guys just had a question I own a 2006 A4 2.0T and my car doesn't come with HID and I wanted to know what is the bulb size for the Headlights I think they are H7 and the foglights are H11 also what is the bulb size for that little bulb that comes on when I turn the car on because I have 2 LED Bulbs that I wanna replace and the ones I have are 12VDC is written on the bulb and wanted to know if they would fit also how would I install them I looked under the hood couldn't figure it out is there a step to step process!?

 

ttt

 

You can check the various bulb types at this link http://www.sylvania.com/ConsumerProd...RG-Results.htm from what I see it would be the same as your glove box or trunk light you can try you bulbs in one of those locations to see if they match before trying to change them out in headlight assembly. I didn't look to see what the bulb specs are though.