I’ve found some rims I’d like to order for my 04 530i base model, but I’m worried about fitment issues. The rims are 19.9.5+35 for the front and 19.10.5+35 for the rear. Has anyone else tried rims with these specifications or would know how they would fit?

 

Those rim specs sound like they are for an xi and not a RWD car like yours. You will probably need spacers if you want to use them because rims with too high an offset can cause troubles with the inside edge of the tire rubbing on the suspension or wheel well. Personally, I'd find a set that fit properly from the get-go.