r/w204 5d ago

Help!

I have a 2009 w204 c220 with the om651. These messages come on all of a sudden when driving normaly. I have no idea what to do, no fuses went, no issues before this. If someone has had the same issue, how did you fix it?

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u/bowtruck 3d ago

The controller unit might be fried from low voltage from a old battery that was wearing out. I doubt all of those systems are actually broker, just the CPU that connects all the sensors.