Lowering springs too close to tyres

[GORT]

Hi to all, bought my I3 about 6 weeks ago and absolutely love it, so onto my first mod, lowering springs, i bought the springs, however when i fitted the first spring and fitted to the car, i noticed that the spring was about 3 mm away from the tyre, checked the springs were right,and fitted correctly, but didnt like that it was too close, so i refitted the original, just wondering if anyone else has had this problem, do i need to add wheel spacers which would solve this problem, many thanks in advance, Cheers Rob