Blower Motor Resistor: Service and Repair
64 11 221 Replacing resistor for heating and air conditioning unit blower (IHR/IHKR)
Release screws (1) and feed out cover (2) towards bottom.
Unlock retaining lug (1).
Pull the resistor (2) in direction of arrow out of the guide.
Unfasten plug connection (1) and disconnect.
Take off resistor (2).