I'm a newcomer to this board and this question might have been asked before. In that case I'm sorry. The problem is with my airco. I have a 525TDS and the airco stopped working. When I start the engine, the airco light comes up for about 3 seconds and then switches off again. Ofcourse the airco doesn't work now. I checked the airco fuses ( it said klimacontrol) but they seemed fine. I replaced them, but no effect.