One problem related to suspension noise has been reported for the 1997 Mercedes Benz E320. The most recently reported issues are listed below.
While making a left turn on a major street I heard a loud pop and pulled over to see if I ran over something, but nothing was in the road. When I started the car and began driving I noticed the suspension was making noises. I took it to a mechanic shop and was told the passenger side rear coil spring perch separated from the body and the car should not be driven. They quoted me $1500. 00 to repair.