s52 engines we use all new oem bmw terminals and connectors unlike other petitors we strive to make your 24v dohc engine swap into your e30 as easy as possible obd1 engine adapter span class news dt jan 11 2017 span nbsp 0183 32 in this video i show how to modify the e36 m52 engine wiring harness to fit e30 chassis this tutorial also works for m50 engines and wiring harnesses from other cars like 25 for z4 sport button wiring only without button for s54 and s62 275 for can controller with pre wired connector on adapter harness for e36 no additional a c wiring required for standard configuration e30 will need some additional wiring for a c since those wires do not go through the main c101 connector includes instruction sheet bmw e30 m50 s50 m52 s52 wiring harness adapters are you planning on swapping your a m5x or s5x motor in your e30 these harness adapters will make the swap much easier.
with this simple plug and play adapter you won t have to deal with any wiring headaches note for 1982 1986 e30 models due to the existing oem chassis harness wiring age it being inadequate to support a modern efi system properly 82 86 e30 orders will receive a self contained version of the harness which utilizes a 5 relay bussmann fuse block to integrate with ignition fuel pump two cooling fans and auxiliary relays e30 1983 to 1992 3 series wiring diagrams 1983 e30 83 pdf 10867285 bytes e30 83 zip 7171106 bytes 1984 e30 84 pdf 16982190 bytes e30 84 zip 12197014 bytes