What key?

Hello reader, advocate, nice people and creditors! Now I have brought my CSE from the workshop with just under 190TKM, with a newly filled KLima plant. Very nice. But from the principle all the plants should be the same, because physics can not outsmart any manufacturer essentially. At another point I already wrote that we still have a CLK. There are ellenlange explanations for the meaningful use of the climate,especially in relation to the case that one enters into the heated car. My thought, which I want to get rid of here: I always ask myself what the ECON button does! Now I hope not to be mocked, but there is no more operating instructions. ….and please… OFF and ON I understand. But the people of Saab certainly also have Abitur, which is why ECON must mean something. Greetings from Berlin. Andreas