HI, ALL Im new to this club, but I hope I can shine a little light on this as ive just sorted my own non working webasto today. I have the same as u guys on my dash screen, as I understand it only gives us the option aux vent as with mine if u set it to come on it only blows cold air, that's because its for hot days haha not cold ones, I found out today there are to ways u can get it to work manualy or remotely, I obtained the software and hardware to read my webasto, it came back a fault, fan short to ground, so instead of striping the unit down I purchased a used 1 fitted it and got it working, I cannot get it to work through the setting on dash not got aux heating option but ive read it can be added through software upgrade, which im looking in to because it would b a lot easer to do it that way, instead I found if I give pin number 1 a 12v live it switches on warms up and sends the blowers in cab on to warm up inside, GREAT, now im looking at maplin to obtain a remote 12v relay which will control it from a key fob. Hope this helps
