AC why do you have to run it to keep it charged.
 

I think it says it in the manual somewhere even or it could be the Volvo but both of my cars now don;t cool.

I took the benz to Enrique & he said it needed a charge but it might not be worth it for me to do if I don't plan on using it every week.

I donlt even start the car every week so I hesitiate to have the AC charged just to have it run out again.

Think it was explained it has seals & they need to be lubricated by use?

Just womdering next time I;m inthe shop if I should have the luxury of charging my AC.

It was working for least year without me really using it
7 the former owners only used this car 200 miles a year for many years so it sat & still when I got it the AC was ice cold but guess it finally lost its charge.

Yes, on ANY automotive a/c system, the compressor needs to turn a few revolutions periodically to lubricate the shaft seal.

Now, that said, the shaft seal is only one of MANY locations for a possible leak. The system needs to be checked for a leak, determine the location of the leak(s) and post them here. We then can give you more meaningful advice.

Well if it hasn't been charged in several years and was blowing cold when you got the car , I'd say Enrique was probably right. I would also schedule to have it charged, after he checks for a leak. True you don't drive it enough, but it needs the recharge to keep from getting worse. After recharging, just turn the A/C on for a bit of time when you start the car like you do periodically. Even in the winter.
I think you have owned the car almost two years now, not a stretch to need a recharge especially if you don't know when it was charged last.

Was that the problem you noted in your PM?

I asked Enrique think he tested it n charge was low
He can fix but he said if I don't use it it will happen again
so I opted not to spend the money at the time