If you could jump start it, the battery was low. Check charging system (load check is best) and if OK, replace battery.

MBs do strange things when the battery is low -- cranking a W126 with a low battery makes the wipers do a single wipe, for instance, and the AC will go nuts.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!