1989 260e
 

Its just stop running after about an 1/2 mile at most of the time and than I have to wait about 3 to 4 mins and restart the car and then contue on from there. After about another 1/2 mile to an its does it again. I had a new fuel pump put on it alone with the large filter and a new relay switch and its still doing it. what could be the problem.

You might want to post this in tech, not the SL section.