the rears will i think, but the fronts won't. Pretty sure they are for the CAT, so the fronts are 4WD. Your B4 needs a couple of bearings in each wheel
Look at the part numbers (U6739 & U6740) both on JE Spares website and on Schumachers:
http://www.racing-cars.com/sp/catego...oad_Tyres.html