Hold down nut for front strut may bacome loose on Mercedes-Benz C320 4MATIC

Problem Description and Possible Solution
The hold down nut for the upper front strut area can become loose, causing a knocking noise. This can be repaired without removing the strut assembly.
Problem Data
RepairPal Verified
Average mileage: (–)
3 model years affected: 2003, 2004, 2005
3 people reported this problem
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