Someone asked what a 1985 280sl is- it’s a Mercedes roadster. Not sure what that question means but if it as simple as it sounds the 280sl is a German model.

Back to my question-

If someone could please share what can be replaced without draining the tank that would be great. Also if there is a proper procedure to change the pump as well without draining the tank that would be great to know.
I am going to change the fuel accumulator and potentially the filter and pump too but want as few surprises as possible.

Thanks