Just wanted to double check on the wiring for my 1986 325e wiring. I'm swapping in an M50.
Pin E30 Function E30 wire M50 wire (pin)
1 Alternator Blue Blue (25)
2 Oil Level (Static) Blue/white connect to oil sensor on E34 oil pan
3 --- --- ---
4 Cool. Temp Sensor Brown/white Brown/violet (12)
5 Oil Pressure Brown/green Brown/white (23)
6 O2 Sens. Relay Green/white contained in E36 harness (ignore)
7 Ignition Green Green (21)
8 --- --- ---
9 --- --- ---
10 Oil Level (Dynamic) Blue/yellow ---
11 Serv. Interval Reset White/blue White/green (19)
12 Check Engine Light Brown Grey (8 )
Pin E30 Function E30 wire M50 wire (pin)
1 Alternator Blue Blue (25)
2 Oil Level (Static) Blue/white connect to oil sensor on E34 oil pan
3 --- --- ---
4 Cool. Temp Sensor Brown/white Brown/violet (12)
5 Oil Pressure Brown/green Brown/white (23)
6 O2 Sens. Relay Green/white contained in E36 harness (ignore)
7 Ignition Green Green (21)
8 --- --- ---
9 --- --- ---
10 Oil Level (Dynamic) Blue/yellow ---
11 Serv. Interval Reset White/blue White/green (19)
12 Check Engine Light Brown Grey (8 )