The high speed (#6) of my HVAC blower is not working but all other speeds do. I have studied the ACC III wiring diagram and it seems to me that the blower speed control is at fault. My problem is that I cannot find this part in the MB EPC. I do find the temperature control unit which is part number 0008221003 but I do not see the speed control unit listed. The wiring diagrams component location photos show that they are both located behind the glove compartment, temp control on the left and speed control to the right. Can anyone help me out with the correct part number?

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1984 300CD (sold)
1973 220DPK 4 spd (died)
1978 350SL 4 spd gray market
2003 SLK32 AMG
1988 300CE (sold)
1997 E420 (Totaled)
1998 E320 Wagon

I would think there is just the one part number.

Good luck.

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83 SD

84 CD