I believe he said he checked the motor and it checked out. I'm going to assume that he did his due diligence there but I of course wasn't there. I will have to ask him if he did. The wiper motor could be the culprit.

I'm going to check the relays as I'm not sure if he knew there were 2 front relays and a single in the rear.

The problem I'm having though is finding a relay diagram, I can only seem to find one for fuses online. Since you clearly are versed in MB, do you have any suggestions on where one would be?

Thanks!
Andy