[CATAHA]

I suspect the front SAM, whats the best way to fix SAM with moisture traces

remove it, try drying it with hair dryer or heat gun, or just let it seat for a day under the sun
The way that i had it, costumer brought car in, i told him about font sam, car sat waiting for part arriving (2 days) i tried moving to a shop, everything started working, i contacted costumer... costumer refused to replace front sam..... took car and not more problems for past 2 years with sam
on 2006 w203 car was towed with exploded battery, key would turn on but not the speedo, i contacted costumer about fualty EIS and that i can not do it, he towed to a dealer, dealer replaced EIS(ONLY) after 1 week same symptoms, car been towed to dealer, dealer replaced again EIS and ESL, now car been driving for past 1.5year no problems