I took my car to Mad Hatter Auto Center today because my car wouldn't crank. They told me that I needed a new battery. They gave me the new battery but my car still won't start. There are no message codes. I asked the tech if he reset the computer (because that's what you have to do with our Benz). He didn't know how to do it. Anyway...I was wondering if anyone has any ideas? Also I would like to know how to change the microfilter so that I can do it myself. Any suggestions?