BMW M70 temerature sensors

Intake air temperature sensor

Number 1 and 2 on the picture
BMW Number: 13621725323 or 13621725324
not used for proteus, because of integrated IAT sensor in MAF sensor
Type: NTC, 2 pin, 2.5k

Coolang temperature sensor for DME

Number 3 on the picture
one side used for proteus!
BMW Number: 13621707366
Type: double NTC, 3 pin, 2.5k
Pinout X6236 (bold = used for Proteus)

Pin	Connected to	Wire color	Comment
1	X6010.78	0.5mm² BR/RT/GE	Sensor 1
2	X6010.43	0.5mm² BR	Sensor ground, together with IAT temp sensor
3	X6020.78	0.5mm² BR/RT	Sensor 2

Coolant temperature sensor for EML

Number 4 on the picture
not used for proteus!
BMW Number: 12621288158
Type: NTC, 2 pin

Coolant temperature sensor for instrument cluster gauge

Number 5 on the picture
B207 Coolant temperature sender
directly connected to electronic body module (EKM)
BMW Number: 12621710535
Type: NTC, 2 pin
Pinout X6232

Pin	Connected to	Wire color
1	X20.4	0.5mm² BR/VT
2	X20.20	0.5mm² BR/YE

Value table for Bosch 2.5k sensors

Temperature (°C)	Resistance (Ohm)
-40	45,313
-30	26,113
-20	15,462
-10	9,397
0	5,896
10	3,792
20	2,500
30	1,707
40	1,175
50	834
60	596
70	436
80	323
90	243
100	187
110	144
120	113
130	89