Hi everyone just looking for any tips on my 2009 c230 I just recently have had issues with. I had taken off my engine fuse box lid and realized it was kinda wet inside on a small area of the fuse box and hadn’t had and previous problems with the car until some heavy rain came and I first noticed my wipers weren’t working then the next day I had a check coolant message a tire pressure message and then finally my car just would not turn on at all. The battery seems to be ok with the right amount of amps no blown fuses and all relays work. I got code P0607 and code U0101 with my obd ll scanner but still cannot seem to figure out the issue. Any and all help is appreciated. Windows radio door locks all work as well just absolutely nothing when I turn the key to start

 

The issue is that unprotected electronics can not tolerate moisture at all.
The extent of your issue needs to be investigated under the front footwell carpet where rain water may have compromised bus-bars.

Find and fix the roof leak before replacing bad SAM & his associate CGW.

 

the footwell is completely dry I pulled it up and couldn’t find any moisture it was just the fuse box that had been leaked on as the lid was off for a day

 

Nice ... it's well defined and limited.
Get a replacement SAM and get it remotely coded by @BenzNinja after you get it installed it.