read someone said something about cable/flap etc, is this directly behind the heater control panel? or is it something to do with the resistor? it works fine and as you would expect on position4, and also off/quiet on the low positions.
________________________________________306 rallye reproduction decals (full sets/individual decals) | 306 b-pillar textured vinyl weatherstrips
306 slam panel esso stickers | 306 yellow / orange / pension fund red side door badges
306 red '6' 3d-printed badges (old part no 866503) | gti6 inlet manifold badges | 306 rear boot badges (p2/p3)
winner of Extraction of toys from prams with outstanding vigour award 2009 [source: gti6 owners club]