(5-00690) OEM Rein Final Stage Blower Motor Resistor for BMW E46 E39 E53 E83 (64116923204)
This is BMW's latest variant. This OEM Rein blower motor resistor (or Final Stage Unit, FSU) is a direct replacement for the stock unit. If the HVAC fan cuts in and out, works on only one speed or does not work at all, a failed FSU is the likely issue. Replacement is pretty straight forward and can be done by most DIY'ers in just a couple hours.
BMW Part Number: 64116923204 (64 11 6 923 204)
- 1999-2006 E46 3 Series including M3
- 1999-2006 E53 X5 Models (All)
- 1997-2003 E39 5 Series (All)
- 2004-2010 E83 X3 Models (All)