1998 Mercedes Benz C230

Electrical problem
1998 Mercedes Benz C230 4 cyl Two Wheel Drive Automatic 269000 miles

The remote quit working. I put new batteries in it but the windows wont roll up or down, the horn wont blow, the sunroof will not open, the signals wont work, heater fan wont run, the car runs and drives good. It makes no difference if you use the regular keys or even the valet key. Help.
March 9, 2010.

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