MW Blower Motor Resistor / Final Stage Heater Fan Control Unit for BMW E46 E39 E83 E53 X5 X3 3 and 5 Series， parts number: 64 11 6 923 204 & 64 11 6 931 680 Interchangeable Part Numbers: 6411 6 923 204 Supersedes the following part numbers: 64 11 6 920 365 64 11 6 929 486 64 11 8 383 835 64 11 8 385 549 64 11 8 364 173 64 11 8 377 579 64 11 6 931 680 Please compare the part number with your original part to ensure correct operation and fitment. Some vehicles may use more than one part number depending on configuration. If in doubt please email us your chassis/VIN number and we will let you know the correct part you need for your car. Symptoms of a Blown Resistor A faulty resistor can cause a number of problems with the heating/HVAC system of a car, including but not limited to: -.
