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• Citroen Picasso C4 2015 1.6HDi - Type of air-con fluid in my '15 C4 Picasso? 8 Jul 2022 (Forum)
  If it's R134a - as in my older C3 - then I can DIY the top-up (and still have a can of the stuff!). But can this also be done if it's the newer gas - R1234yf? And how can I tell which I have? Thanks.