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

The guy who asked is a known pot-stirrer.

Don't waste your time with the pump. They work or they don't. You'll be spending big bucks on a pump with no gain to show for it. The filter and accumulator can be changed without draining the tank. As I said in a previous post, expect a spill, the lines and contents of the filter/accumulator will drain out when you open them.

__________________
Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

Per the Factory Service Manuals (FSM), and as a matter of practice, the large feed line from the tank is to be clamped off when doing any work that will involve opening of fuel lines further downstream in the area of the pump/filter/accumulator package.