Hello, I have E280 W211 2006. Last morning I found my battery dead, out of nowhere. Now I got a new one and found out I have 1.43A current drain. However, when I remove my instrument cluster's positive or ground wire , car falls asleep in like 1-2 minutes and leaves 0.03A drain only. Maybe you've got any ideas what could be causing this? Not sure what to do next, worst case scenario I might install a relay that gives power to Instrument Cluster only when ignition is on.