My 1999 a4 b5 quattro 1.8t AEB . Had a bad front abs sensor and replaced both of them in the front, my abs problem went away. Now I have a abs issue again where my abs light comes on and brake light flashes beside it and it beeps 3 times. Now I did have a bad wheel bearing on the front as well, could that cause my new abs sensor to go bad? Also does anyone know the rear abs sensor part numbers? That is what I plan on replacing next but can not find a solid answer on what part numbers are. Thanks in advance!