Christophe wrote:because on car air conditioning periodic maintenance / recharging is necessary...
My 806 is 10 years old, bought in June 1997. I have never touched the air conditioning or let anyone do it!
The seller told me that the annual recharge was abandoned at the same time as the more volatile R12. Naturally, car centers are not about to let information filter out. As Pitmix says just change the filter. On mine, there are none, the dealers have removed them: on the 806 they tend to take moisture and mold. The remedy is worse than the disease!
By cons the amount of cold produced has become lower: the air conditioning had to lose a little fluid anyway, but not enough to break it down.
4-5 years ago, she missed, I thought I was running away. But a colleague of auto mechanics advised me to check the pressure switch: I disassembled / reassembled it and have not had any problem since, it must have been a simple oxidation of the lugs or a mechanical seizure ...
I put it on the road even in winter, to demister the windshield. It is in any case advisable to switch it on at least once a month, to ensure the watertightness of the joints.
As Jean63 pointed out, since my car is white, the air conditioning is less stressed than with a dark color. This might explain that...