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 CL600
Average mileage: 74,850 (70,000–79,700)
12 people reported this problem
The same problem occurred to me. I had the car in for an unrelated problem the week before, and my mechanic didn't report any suspension issues to me.
2002 Mercedes-Benz CL600 70,000 mi, Visitor
had car into dealership 2500 miles prior with no mention of problem...then failure and the entire subframe had to be replaced. OUCH