Replacement Q5 Headlight Indicator Stuck on Solid Amber

[Raydon71]

Hi and thanks in advance for reading. I have a 67 plate Audi Q5 and had an accident (My own Fault) and broke the headlight so I purchased a 2nd Hand 1 from eBay but I have encountered a problem. The Headlight indicator stays on solid even after a friend of Mine coded it (WORKS FOR AUDI) He says it's looking like a broken Headlight and thinks water got into it and damaged it. Is there anything else it could possibly be as we know these headlights are super expensive. ? Thanks Advance for your help.