Join Date: Sep 2007
Are you saying that the Alfa system doesn't work in the same way as other European cars equipped with similar systems? Alfa has used the Valeo system on the 164 and it does operate differently to the identical system on the SAAB 9000.
Each car maker can tweak their Valeo software if they wish.
If the system truly cannot reach and maintain a constant cabin temperature within 10-15 minutes then it is probably the cabin air sensor that is not reading correctly. There is also a possibility that the air mixing temperature sensor isn't working correctly.
Most likely is your perception of the air temperature is inaccurate. The human body isn't well set up to determine temperature but is quite good at sensing change. You may be sensing normal operation of the system. In my experience women seem to find these systems most annoying, well one woman in particular, and they constantly change the set temperature which causes the system to respond rapidly by increasing or decreasing air temperature entering the cabin to achieve the requested change quickly. This results in sensation of too hot and too cold depending on which direction the change has been requested.
Working correctly, set at 20-22 C (70-74F approx) the incoming air should feel cool as your skin is at 37C (98F?? I am in Canada and no longer use the F scale except in winter, what's 37 x 9/5 +32? I do know that minus 40 is f'ing cold using either scale!). The hottest air you will get should be around 35C I should think, never measured it, and the coolest air the AC could deliver is around 5C is it, which is very cold and I don't think these automatic systems deliver such cold air even when set to LO. The set temperature range is 18-32C (68-92F). These temperatures
1991 Alfa Romeo 164L 5 spd
White on grey leather 230K km, owned from new
Last edited by Michael Smith; 06-04-2018 at 07:22 AM.