What size socket to remove oil filter housing on a citroen xsarsa Picasso 02 registration with the paper filter?

To remove the oil filter housing on a Citroën Xsara Picasso (2002 model), you typically need a 27mm socket. However, it's always best to double-check the specific filter and housing type for your vehicle, as variations can occur. Make sure to use a ratchet or extension for better leverage, and consider having a container ready to catch any oil that may spill during the removal process.