W211 Instrument Cluster Battery Drain

07-25-2020, 02:56 AM

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MantasP

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W211

W211 Instrument Cluster Battery Drain

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.
In addition, the fuse #64 , which is 7.5A in the engine bay removes the drain as well.

Last edited by MantasP; 07-25-2020 at 03:24 AM.

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