Thanks for the additional responses. Hopefully the suggestions around the cables and grounds are correct. Nice that it could be something simple.

The battery is fairly new, maybe 2 years, but less than 3. Does not get driven or started enough. Could there be something in the battery itself that would cause this?

Happy New Year!

Clay

__________________
2002 E320 Sedan 93K Designo Mocha Black Metallic!
1995 E320 Wagon 205K Black Wagon
1982 240D 183K SloPoke

I believe each of these cars are the final production year for that model.