2003 156 Lusso: Problem with heater option switch
I have a problem with the in-car heater options on my 2003 156 JTD (facelift model). When I turn on the in-car fan I can't seem to switch the fan direction from anything but the 'in your face' option. When I turn the dial clockwise/anti-clockwise the display doesn't scroll through any other options. There is a 'mode' button on the dial which I've seen youtubers use in order to change options but this button is just a blank on my car, it seems, even though 'mode' is still written on it. I've a feeling that I'll need a new pollen filter anyway because the airflow is very low even on full blast but I wouldn't expect that this affects the option switch...?
I'm by no means a mechanic so am fine with the old 'drop it into your mechanic' line. But, just in case it was a quick fix for a layman, I said I'd ask on here. Can't provide a picture or video if that would help.