Bad fuse. I don't know if there is a separate metal strip fuse for the fan on a W123, but I know there is on the W124 -- the blower stopped running on the TE after I changed the water pump, fuse had cracked.

Peter

__________________
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!