Hello all. I have a 2008 C300 that will no crank or start. I have replaced the starter and starter relay, and the problem is still there. I saw a possible solution. I pulled the starter fuse and the starter relay, replaced the fuse, turned the key to the second position and placed a jumper wire across where the relay was and it started but then cut off by itself after a few minutes and returned to the same state as before. If anyone could help[ I would really appreciate it. Please.