hatrick1960 Posted February 11, 2015 Share Posted February 11, 2015 Is the head light unit a sealed unit or can you change the dipped xenon bulb? I am getting lots of different opinions, I want to upgrade my standard fit lamps with a higher wattage or possibly with Philips D3S X-treme Vision Xenon HID Bulb, These bulbs although very expensive have very good reviews. All comments welcome. This relates to my A5 2014 3.0 S-Line 245 bhp Quattro 4 door. Quote Link to comment Share on other sites More sharing options...
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