Mercedes-Benz S55 AMG Problem Report
Mercedes-Benz S55 AMG Front Thrust Arm and Control Arm Bushing Can Crack or Tear
Front thrust arm and control arm bushings can crack and sometimes tear completely. If this is not repaired quickly, damage to the front subframe unit will occur, which is very expensive to repair. Updated control arms (that prevent damage to the subframe when the bushings wear out) are available.