The right (colder) side is a little less. I would expect that if it dissconected there would be no air at all coming out. Could be wrong but...I did block it off this morning and the air out of the right side did warm up a bit so must be a kinked pipe? I will check the tubes but there are so...

I'll have a look at the tube and see what's what. Don't really know if I can see anything without taking it apart. Is there an easy way to see if this is the case? At least my side is nice and warm! Cheers.

Searched but didn't find anything. I have 2007 D90 and the heater blows hot just fine on the drivers side but only cold air is blowing thru on the passenger side. Any suggestions? This is a new problem so didn't know what might have happened to cause this. Thanks.