Re: Heater permanently on
I am not sure if you guys are on the same song sheet - sensor in wing mirror?? For curing hot air in the cabin?? Or is it me that's got it wrong?
My 2.0 TS had the same problem when I got it more than five years ago. I cured mine by adjusting the length of the cable from the centre temperature adjusting knob. Just note that the tolerances of that cable seems to be quite critical.
You need to take off the centre console to get to the end of that cable. (Search this forum for a detailed description of the job and where all the bolts are hidden. Wish I had known about such a forum then!) Five years is a long time, but what I remember is this. I adjusted the length of the cable opening the hot air "flab" by turning the white nylon tab on the outer sheath two or three turns. (I can't remember whether I lengthened or shortened the cable - but this was easy to determine at the time, by watching the movement of the cable when the knob if temporarily replaced with the console cover off. All I know is that even on "hot" the air is now not as hot as it used to be! But getting fresh air at normal temperature is definitely more bearable than continiously getting hot air blown on you in Africa, needing the airconditioning to run almost all the time.
I told myself at the time that the "seal" for closing off the hot air probably weared thin with time. I do however experience a slight delay to changes in the temperature after adjusting the knob, which had led me in the meantime to believe that it is a water valve controlling the temperature of the matrix (a word which this Boertjie had learned on this forum). I find this quite old-fashioned, should it be true.
Best of luck.