Gilly, one of my teenagers ran out of gas in the 889 300ce because the fuel sender did its usual acting up job, & now the car is hard to start & stalls virtually immediately, which it never did before. I'm figuring clogged fuel filter, & so I wanted to drain the tank to swap the fuel filter/pump/accumulator assembly from a previously great 1991 300e (now a parts car, front end totaled by my other teenager) to the 88 300ce. From what I have read during my search, I thought it was necessary to drain the fuel tank to do this. (I'm also going to check the fuel pump relay tonight since that would be a much easier fix.)
Rich