If your Pre-FL has adaptive Xenon headlights (AFS - cornering lights), and you switch to standard FL LEDs, the AFS module will go into fault mode. You must either code out AFS completely or retrofit FL AFS LED units (very expensive).
For the dedicated enthusiast, the result—a refreshed, modern Audi with superior lighting and aggressive styling—justifies the effort. For the casual owner, the technical hurdles may outweigh the aesthetic benefits. Proper planning, sourcing quality OEM parts, and utilizing experienced specialists are the keys to a successful conversion. audi a3 8v facelift conversion new
But here is the secret Audi doesn't want you to know: Not one millimeter. The mounting points for the bumpers, the fenders, and the hood are identical. If your Pre-FL has adaptive Xenon headlights (AFS