I have a 2007 FR TFSI, recently had a new A/C pump + regas. I've noticed that if I don't turn the a/c on, the air speed from the vents is quite strong and easily adjustable, however the second I turn on the a/c, the air through the vents is very weak? This is despite the blower motor running at max.
Could this be anything to do with the blower motor resistor?
Could this be anything to do with the blower motor resistor?