Problems with the XC 60 automatic air conditioning system

Hello! Since January 2024 we have an XC60 B5 Petrol Plus Black Edition and are so far also super satisfied with the vehicle. The model still has the heater with timer (fuel-powered). We currently have the problem that – no matter what we adjust – it is not really air-conditioned in the rear row or it does not cool at the warm temperatures at the rear. At the front everything fits and the manual ventilation controllers in the rear are also open but somehow the heat is enormous. We have a 1.5 year old toddler sitting behind and she torments herself a bit and is really sweaty as soon as it has outside 26°C / 27°C. Do we do something wrong or are the known problems? Another question about the fuel-powered stationary heating. I thought – without reading this more closely – that I can also pre-cool the vehicle with this option. So I know that from my old vehicles. In the app or in the menu in the vehicle I always find only “heating” and no cooling. Can the vehicle really not do that?