STOP, DON'T USE ETHER TO START THIS CAR!!!!
This is a glowplug engine and could be blown to smitherenes with ether. If you MUST use ether, disconnect the glow plugs first.
If you have emptied the tank, put in a few gallons of diesel and one of the good additives, you also should use some biogard to kill any algae.
'84 Euro 240D, 523K miles
'88 300E 5 Speed
'81 300D Daughter's Car
Over 800,000 miles in