Do you know if they twist, or are the spring loaded over the flange on the pipe? I will take a closer look tomorrow.
If you enlarge the 1st picture it looks as if there is a hook over the flange.

Replacing my heater core on my 2010 XC70 using ALLDATADIY, cant figure out how to remove the pipes from the core. ALLDATA is just pictures.

Here are a couple of pictures. Any hints would be...

Over the weekend I removed the Climate Control Mod Disconnected completely) and Radio to fix the cup holder. While I was working on the holder I decided to listen to the radio...Big mistake, because...