Blower Motor Heater Resistor For Volkswagen Passat 98-05 Audi A4 A4 Quattro S4

Blower Motor Heater Resistor for Volkswagen and Audi

This blower motor heater resistor restores variable fan speed control on Volkswagen Passat and Audi A4, A4 Quattro, and S4 models, replacing a failed resistor so the cabin blower runs through its speed settings again.

Overview

This blower motor heater resistor for Volkswagen and Audi vehicles sits in the blower circuit and controls how much current reaches the fan motor. When the original resistor fails, the blower can stop on some or all speeds, leaving the cabin without airflow. Fitting a replacement resistor brings back normal fan operation for heating and air conditioning.

Built For Performance

• Restores multiple blower fan speeds instead of a single default setting
• Direct-fit replacement for the factory resistor location in the blower housing
• Plug-in electrical connector matches the original harness
• Heat-sink design manages the current load of the blower motor
• Suited to the Passat and A4 platform blower assemblies

Fits These Machines

• for Volkswagen Passat 1998 to 2005
• for Audi A4
• for Audi A4 Quattro
• for Audi S4

On-The-Job Use

• Repairing a blower that only works on the highest speed setting
• Fixing a fan that stops entirely after the resistor burns out
• Restoring cabin heating and defrost airflow in cold weather
• Restoring air conditioning airflow in warm weather

Specs At A Glance

Good To Know

Q: Why does my blower only work on high speed? A: That is the classic sign of a failed blower resistor, since the high speed setting often bypasses the resistor. Replacing the resistor usually brings the lower speeds back.

Q: Should I check the blower motor too? A: It is worth inspecting the motor and its connector while the resistor is out. A dragging motor can overheat a new resistor and cause it to fail early.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.