BOSCH idle control thermostat for Bmw 5 Series E28 (09/1980-12/1987)

BOSCHthermostatic contactor or timed thermocontactor for Bmw 5 Series:

Bmw E28:

- 518i 4cyl 105hp from 05/1981 to 01/1984 (engine code M10B18)
- 520i 6cyl 125hp from 09/1982 to 09/1984 (engine code M20B20)
- 525e 6cyl 2.7L 125hp from 11/1982 to 12/1987 (engine code M20B27)
- 525i 6cyl 150hp from 02/1981 to 11/1987 (engine code M30B25)
- 528i 6cyl 184hp from 09/1980 to 12/1987 (engine code M30B28)
- 535i 6cyl 3.4L 218hp from 12/1984 to 12/1987 (engine code M30B34)
- M5 6cyl 3.5L 286hp from 10/1984 to 11/1987 (engine code s38)
- M535i 6cyl 3.4L 218hp from 07/1984 to 12/1987 (engine code M30B34M)

This switch is used to regulate the idle speed for a cold start.