MERCEDES: THE ENGINE CONTROL MODULE (ECM) MAY FAIL FROM FEEDBACK SIGNAL TO VALVE DUE TO HUMIDITY ENTERING EXHAUST GAS RECIRCULATION (EGR) VALVE, CAUSING AN ELECTRICAL SHORT CIRCUIT AND SOFTWARE NEEDS UPDATING. MODEL 2010-2011 906. *PE UPDATED ON 7/11/2013. *KB UPDATED 11/21/13. *PE
