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Stepper motors:
There are ten stepper motors in the system. These are all the same motors, but two have a different connection part (mixing flaps). The motors control the flaps for:
1. Passengerside footwell flap
2. Passengerside dash vent flap
3. Passengerside temperature mixing flap
4. Driverside footwell flap
5. Driverside dash vent
6. Driverside temperature mixing flap
7. Outside air flaps
8. Recirculation mode flap
9. Demister vents flap
10. Rearpassengers freshair flap
http://bmwe32.masscom.net/johan/ihka...r_motors_1.jpg
Seite 7, Nr. 7
Stellmotor Fondbelueftung
http://www.e38.org/e32/klimaautomatik.pdf