Torque thrust bushings in the front suspension may crack and leak oil, this causes steering alignment problems and excessive tire wear. Another symptom of a worn bushing is a clunk or thud noted when turning, on hard acceleration, or hard braking.
Car Problem Reports
Mercedes-Benz CLK320 Torque Thrust Bushings May Crack and Leak Oil
Mercedes-Benz CLK320 Problem
Average Mileage: 50,467 mi (40,000 mi - 59,003 mi)
Visitor, 2003 Mercedes-Benz CLK320, 40,000 mi
During an aligment, they notice it...Quoted me $800 to fix it
Visitor, 2004 Mercedes-Benz CLK320, 52,400 mi
dealer advised bushings cracked and gasket was leaking - covered under extended warranty
Visitor, 2004 Mercedes-Benz CLK320, 59,003 mi
on exam by MB dealer bushings were diagnosed as cracked - fortunately I had extended warranty and replacement was covered.