2001 Mercedes Benz Other

Electrical problem
2001 Other Mercedes Benz Models 6 cyl Front Wheel Drive Automatic 106000 miles

At first, my keyless remote would sometimes not work until after several presses.

Now it doesn't work at all. I have changed the battery and it still doesn't work. What might be the problem?

Also, after this happened, the car sometimes shuts itself down if not driven frequently. The only way to get it back started is to undo the cables for sometime or either jumpstart the car when simply undoing the cables doesn't work. What causes this possibly?
May 13, 2008.

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