if when traveling along i lost all power to the dash, and the engine cut out, also the heaterblower,electric windows, etc and the only things working were my hazzard lights and the engine start key-turning the engine over but not firering , what possible problems couls it be,

after a short time the dash lights re-apeir, and all other things , and the engine starts, somone said the over voltage unit, or maybe battery, but the battery is good ,

any ideas merc groupees,,,,,,,,