Motor mounts commonly fail, causing engine vibrations to be transferred to the body. Failed motor mounts should be replaced in order to prevent damage to the transmission mount.Google+
Car Problem Reports
Mercedes-Benz E320 Motor Mounts Fail and Cause Vibration in Body
Mercedes-Benz E320 Problem
Average Mileage: 133,905 mi (100,000 mi - 215,525 mi)
Visitor, 1994 Mercedes-Benz E320, 215,525 mi
Noticed strong vibration at idle. mechanic determined motor mounts were bad; engine was resting on torsion bar. Repair was made and problem corrected.
Vibration in the vehicle, especially noticeable during acceleration was traced to perished motor mounts. Replaced motor mounts resolved the issue.
Visitor, 1999 Mercedes-Benz E320, 100,000 mi
Motor mounts have been replaced twice- issue still present. A vehicle of this nature should NOT have this problem.