Mercedes c320 won't start
 

I have a 2004 mercedes c320 and it won't start. I came home from vacation and my battery was dead I jumped started it and it started easily. I went to the store and my war wouldn't start again. So my friends came and jumped my car but this time it wouldn't start. I went and bought a new battery and it wouldn't start. But this time it wouldn't crank over at all. I got my car towed and iv been working on it. So when I turn on my car all the lights and music comes on but no crank. It seems like my starter is not getting any juice to it. I'm lost on what to check next. Oh and I also checked the fuses and their all good. Please help if you have any advise. Thank you

I am having same problem with c280 and have taken the same steps and still wont start so if you came up with something please help.
Thank you

guys these cars are very sensitive to power surges due to jump starts and even battery changes .. just check the front fuse box for blown fuses . usually the starter fuse and the control module fuse gets blown after jump starting it ...

You really need to have it looked at by a mercedes dealer or specialist, could be different things. the starter wire is a purple wire coming out of the front sam