Does anyone know the exact specific procedure to remove a rear wheel bearing on a 2004 Audi a8 4.2L quattro? I read a procedure on all data and it mentions about leaving the wheel on with the weight on the car and turn 90 degrees then take off the wheel and remove the bolt.Says if done wrong wheel bearing will be damaged? Any Audi techs that can help with this procedure and the exact tools needed? Also the install procedure if there is one?