Hiielfe! On his 7th anniversary with me, my Cad (Sedan de Ville 1989, on-board diagnosis-1) does not please me: The air conditioner reports the error code F 48. And she just got a new compressor (including dryer, flushing and new filling) for a medium fortune. Does anyone have an idea what they want now??? If you want to turn it on, (car), she immediately goes to Econ and the service AC control lamp lights up again.