My 2001 E320 wagon has had a problem with its voice recognition since day 1. Intermittently, when I start the car, there is no response from the voice recognition stalk. If I stop the car and start it again the stalk works. If it is working when I start the car, it works fine. If it is not working, it will not work again until I restart the car. The dealer has replaced the voice recognition module and stalk several times. They just replaced the ignition. I went to pick up the car, got in, and no response from the stalk. Has anyone had a similar problem?