I have the same problem with my SL also a 96, except that the wipers work OK. Where is the "other" pump that you are going to check? My wiring diagram only shows the one in the washer bottle.

NEVER MIND, I LOOKED HARDER AND FOUND IT ON ALLDATA. IT APPEARS TO BE ON THE FENDER SIDE OR THE BACK SIDE OF THE WASHER BOTTLE.

Also, what color are the wires to pump in the front of the washer bottle? Mine don't match the diagram.

For the windshield washer pump, Alldata shows the current flow as Fuse 12 in Fusebox 1 (just outside the brake booster) to the combination switch to the pump.

__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe