I own a '92 300E. My car has two washer fluid pumps located on the front of the wiper reservoir. One pump is for the windshield nozzles and the other is for the headlight nozzles. Hope this helps. BTW, when I bought my car a few years ago, the headlight nozzle pump was bad. Easy replacement. Just be sure to replace the rubber grommet which seals the pump at the reservoir.