could be the valve that opens for the other zone... there was a thread on here before i seen that...


i have that problem myself... i have the driver vent and left side center vent blowing cold while the right one blows hot and the other zones (passenger and rear) are very very weak.....

and at the lowest possible setting when its on....sometimes it will make a hissing noise... weird

what i tried to do is recharge the system.... i got it done the right way with the gauges and the scale...etccc..... and it has been tested for leaks.... no leaks....


This could possibly be the final resistor? common thing i heard...
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NO AC- because BMW to complicated ///M
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2009 BMW E60 LCI 528Xi


SOLD
2002 BMW X5 3.0i E53