my mechanic gave me the old wheel seals and I verified it is magnetic. I also confirmed the new one he put on is also magnetic since I have an exact spare. During the install he used a aluminum hammer to knock the wheel seal in place. I am not sure it he damaged it since he didn't know it was magnetic. I am not sure if the grease is magnetic grease but I assume so since it was part of an overall kit that had the magnetic wheel seal.

BTW, I read online my car has the dreaded SBC system and my mechanic should've disconnected my battery prior to the work. I wonder if that is causing the ABS & ESP message and the only way to clear it is to take it in to the dealership?