craig luna

I have a 2009 c300, a month ago had a big rainstorm and water got into the front sam unit. Took it to the dealership they fixed it but still no start they said I have a esl problem but I have a bypass put in. Bypass worked fine before problems to the front sam. After I got the car back I even sent in the old bipass and they sent me a diff one reprogrammed. Everything electronically works. Just running out of options of what it could be. Any help would be appreciated.