I just changed mine. I have an 01 4matic. After checking around and talking to many people I put the factory shocks/struts back on. On the 4matic you have struts on the front and shocks on the rear. Like you I did not want a harsh ride. The factory shocks hag Boge stamped on them. I was told by the Bilstein rep that their shocks are a little stiffer than the factory. However, the Bilstein are used on the E320 w/sport suspension.