bmwe21.net forums

Hi guys!

Im in progress of doing M50 engine swap on my E21 320. Searched all net, couldnt find wiring diagrams. Could anyone help me with this?

Regards,
Dan

Hi there mate !

there is a post on Czech sharknose website , it goes like this

M50: STARTER-thick yellow/black-pin 18
ALTERNATOR(charging light)-thin blue-pin 25
fuel pump-green/violet-pin 13
oillight-green/brown-pin 23
15 key-thick green-pin 21
temperature(dial)-brown/violet-pin 12
temperature(dial)-brown/yellow-pin 11
tachometer-revs-black-pin 20
speedometer-black/white-pin 14

E21 M20 from fusebox to engine
1-oil pressure-oiling
3-fuel pump
5-charging light-ALTERNATOR
6-key 15
10-STARTER
13-water temp.
15-tachometer-revcount

sorry for the halfassed translation, I gotta go away from pc, if you have any questions, i can contact the guy who did this list-his car is running very well