Rear wheel bearing
 

Bought a genuine Audi rear wheel bearing for A6 from e-bay @ £50 instead of dealers £80 and PF A/S8 uses the same bearings in the rear. Part number 4D0 407 625 E. Its made by SKF an has BAH-0011 AB and M01 E on it. SKF part number VKBA 1356. If you ever need one you can search it by SKF part number and get cheaper then dealer price.