2010 3.0 TDI pre facelift Sportback. After 9 weeks of it sitting in the garage having a full paint correction detail, I took the A5 out at night. Dash warning saying OS headlight issue and sure enough when I got home no light. When I switched it from auto to manual the light kicked in, is this normal? Don’t want to order the the replacement Osram bulbs at £160 if there are other issues, that bulbs won’t fix.