Whine noise

[scotty89]

I'm getting a whining noise when my AC is on but at low temps (low-23/24'c)
Just a recharge or AC on it's way out ?

It's a 2010 a3

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[maxpayne]

Is it something like https://www.audi-sport.net/xf/threads/strange-noise-from-the-cabin-heater-blower.141195/?