I arrived to this forum through a Google search...
I have a problem similar to Steve328's. I will certainly try and vacuum the vents, but my problem does not affect the AUTO function, so perhaps the solutions is different too...
Well, from my 318Ci air, all of a sudden (till yesterday the climate control was GREAT!), is too hot. However, this is not just a problem with AUTO. It is too hot even if I set the fan to minimum, manually.
Out of curiosity, anybody knows where, in my car, is the thermometer?