Still trying to work more parts off the donor, How about the radiator and the injectors? My metal radiator is ready to bust the neck off, the big difference on the plastic radiator is two extra lines coming out the bottom of the center section, are these transmission cooler lines or do they have water circulating to something? On the injectors, I'd like to get the donor ones tested, then swap them in and get the others done. '82 240D into '76 240D BTW

the two lower lines are from the transmission. the radiator is
not a drop in, and i dont think it will easily work. the 123 is
held in by clips and the 115 by rubberbands. the oil cooler
to the side of the 123 radiator could be made to fit the 115
i think.
dont know about the injectors, but the heads are different,
the the gp threads different. i think the ip from the 123 would
fit and would be an upgrade in power. check the part numbers
on fast lane for the injectors and there interchangeability.

don