Hello all!! Our C3 Picasso has rust bubbles without end!! -Bj 2012 (newly bought) -Underfloor protection immediately additionally,so that we have no problem with rust cutting. -2016 Rust transparency for warranty,without complaint. -2018 in January unfortunately rust vision not made, was unfortunately overlooked.(otherwise all service made at Citroen) -2018 in August rust bubbles (partly 2cm large) at the tailgate and li+Re Holm noticed. From to the car house,short information rust damage in the value of 270€-Autoankau fswert max. 4500=Economic total damage. No guarantee since review was not made in January 2018.Kulanz solution 20%Citroen +20%distributor.As the rust bubbles are closed outside, the rust clearly comes from them, my opinion should be 100% culant.Car is only 6 years old. Ask for your opinion. Lg a disappointed Citroen driver.