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      09-29-2012, 02:51 PM   #35
Private First Class

Drives: 06 Z4 3.0i
Join Date: Aug 2012
Location: CT

iTrader: (0)

Plastic gears and linkages were $25 from Tischer. You also get the linkages and parts for the other side of the a/c housing where the heat/ac mixture flap is. Part # 6411 6927612 (set of small parts) On my car, I noticed all the gear teeth are ok, but one of the white gear's flanges is missing a small piece, undoubtedly caused by this malfunction. I can't imagine why BMW would put these cheap plastic gears in this spot. If the repair/replacement was an easily accessible location, it wouldn't be a big deal, but the fix for this problem is all about the labor and gaining access to the ac/heater housing area.