What does the final stage resistor do?
The final stage (or blower motor) resistor controls the speed of the blower motor in your heating & air conditioning system. Faulty resistors can cause a list of erratic issues, from the fan running when the car is off, to only having one fan speed available.
How much does a resistor module cost?
The average cost to replace the blower motor resistor at a repair shop is between $44 and $55 in parts and $70 in labor costs, for a total cost of around $114 to $125.
What is a final stage unit?
Blower fan problems in your BMW E46, E39, X3, and X5 are likely caused by a faulty blower motor resistor, also known as a blower regulator, final stage resistor (FSR) or final stage unit (FSU). It regulates the fan speed coming from the blower motor.
How much is a resistor for a car?
A blower motor resistor costs anywhere between $1 and $400. Factors that can affect its price include its condition, configuration, material, and set or kit inclusions. Labor may cost you an extra $45 to $55, depending on your area.
What is final stage unit BMW?
The blower final stage fan resistor also goes by the name of the blower motor resistor. This component is an electrical part responsible for providing the voltage to the fan that controls the heating and air conditioning in your BMW. This causes the fan to speed up or slow down.
Why does car AC only work on high?
If your air conditioner works on high, it is a very specific issue. It can mean that there is a problem with the blower motor, the control board, or the thermostat. However, we still do a full diagnostic check-up to ensure that all of the switches, wiring, and fuses could not be causing the same issue.
How much does it cost to change a resistor?
Blower Motor Resistor Replacement Cost – RepairPal Estimate. Labor costs are estimated between $44 and $55 while parts are priced between $64 and $82. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location.
What does a heater resistor do?
The blower motor resistor is an electrical component that is a part of the vehicle’s heating and air conditioning system. It is responsible for controlling the blower motor’s fan speed.
How to remove the final stage on a BMW E46 blower?
To remove the BMW E46 final stage, take out the T-20 Torx fastener (green arrow). Then release the retaining tab (yellow arrow) and slide the final stage out of the HVAC housing.
Where is the final stage on a BMW?
Shown here is the BMW E46 final stage, itï¿Â1/2s located below the passenger side dashboard at the transmission tunnel. It installs into the HVAC heater housing. First open your glove compartment and remove all the items from within.
What kind of climate control does BMW E46 have?
BMW E46 vehicles are equipped with a climate control system (IHKA) with multiple sensors, controls, air temperature units and ducts. The blower motor that controls air flow into the passenger cabin is among the most consequential components in the climate control system.