Perhaps not. The return lines and associated t junction are located above the passenger side wheel in the wheel well. On the 318 who knows.
Anyways, that is usually covered by a cover plate that usually rusts out. The fuel expansion tank is behind a plastic flap/guard behind and above the rear pass. wheel. once that bolt breaks the flap may rub the wheel. You may find your issue there.
If your tank is that bad that it has broken free of all those bolts and is rubbing the driveshaft you have a real mess on your hands. I don't even think that could happen, given the space and that with the filler tube connected it really can't drop anywhere.
Again the 318 is a wildcard to me for the most part. Look and discover!