I would check the fuse on the OVP relay before anything, as that is ABS power source.
Do a search "OVP"

http://catalog.worldpac.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=21H0MN3YU2AJ0T1FOC&year=1996&make=MB&model=C-280-001&category=P&part=Overload+Relay

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A Dalton

i read that the ovp in a 1994 c280 has a 10 amp fuse...my 1996 2c80 has a 15 amp fuse in the ovp, is this correct? i also have this intermittent abs light coming on and off...it once came on in mid acceleration to 80 mph. was off the following day in the morning...came on briefly in the afternoon after a warm spell in the weather...and when it turned cold in the evening, the following morning it was off again...any thoughts...thanks.