Headlight issue

[Tonym70]

Hi I’m after advice my 2016 Audi A8 drivers side mainbeam has gone my headlight works fine just the main beam Audi quoted me just over 3k for a new 1 I can’t afford that atm i have couple of questions 1 can they be refurbished or need replacing 2 can another style of a8 headlight be fitted to my car if some1 could give me some advice on this thanks in advance

[Steve Q]

Id definitely look for a second hand unit on eBay or similar. Is it the ballast box that's failed? 

[Tonym70]

Hi Steve ty for response I've looked yes there couple on there but quite expensive and to be honest what is the ballast I've heard of it but not 100% on it