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.
Front Thrust Arm and Control Arm Bushing Can Crack or Tear on Mercedes-Benz SL55 AMG
Average mileage: 55,000 (48,000–62,000)
9 people reported this problem
2004 Mercedes-Benz SL55 AMG 62,000 mi, Visitor
Clunk over bumps at speed. Looseness in suspension. Slow speed abrupt braking will produce clunk sound and vibration. New Thrust arm bushings (pair only) replaced by MB. Cost $695.
2004 Mercedes-Benz SL55 AMG 48,000 mi, Visitor