Hello, new member, 1998 Arosa 1.0 driver (since July 2003) - the best value for money car I have bought to date!!!!!! Those lucky enough to have AC - yes, you can use it to heat the car up quickly during the winter, as well as maintain cold air during the hot (and hotter?) summers we have. The best way to demist is to switch on the recirc button, switch the dial to screen or even between screen/feet , and full on the speed control with the a/c switched on. Trust me, I have left home many an early morning during the winter in my Arosa, as well as a variety of company cars from different manufacturers. By the way, once the car has warmed up, put the air back to fresh, and reduce the fan speed to your preffered level - practice makes perfect. TIP: do make sure your Pollen filter is regularly changed, as it reduces fresh air intake into the car, and can also make you nauseous if it is REALLY caked with rubbish etc. With regards A/C recharging - the rule is more you use the A/C, the better it is for the compressor, the gas etc. In fact, most manufacturers recommend you turn it up to full blast at least once a month for at least half an hour. This keeps the seals in good nick. Best practice is to get the gas checked by a reliable gas man if you notice the A/C isn't heating / cooling efficiently. Some gas men recommend inserting dye for about £15 plus especially once a car gets a bit older - useful, as it shows up any leaks. Pleased to be part of the Lupo/Arosa forum, and for those of you who have skimmed to the end of this post - sorry for the !!!!yawn!!!! reply.