Keep the bottle till you have the air issue fixed. Put more fuel in it, keep it 3/4 full so both lines are submerged.

Loosen the 17 mm pressure valve banjo bolt just enough to let air out as you pump away. Once you get fuel coming out of that banjo bolt, tighten it and keep pumping till you get solid fuel into the clear return line, then crack one injector nut slightly and the engine should start. Feather the throttle to keep it running and get all the air out of the system. You should see foamy fuel in the clear line till all the air is out and the fuel should not drain down after you shut it down. If it does, you still have leak(s) which must be fixed.

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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked