I hope someone can tell me whats up with the air con/climate control system on my '97 2.0TS Super.
The thermostat(?) which tells you the internal/external(?) temperature is 'stuck' at -29 and that means that the climate control pretty much blows hot air all the time. Obviously, with summer coming this is going to be a huge problem.
sound like you may have a problem with your external temperature sensor which is located on the underside of you nearside wing mirror. A friend had the same problem as you when someone very kindly kicked his mirror off.