Servus with each other, ́ got me a Citroen Jumpy as a everyday car. Bj 2003 2.0 Hdi with 94 HP. I changed the timing belt about 2 weeks ago. I changed the water pump with the same thing. When I only wanted to finish at night, I tipped Glysantin G48 into the car with my youthful sense of lightness… I then read a day later on the internet that silicate-free antifreeze has to be in the Jumpy. Now to the actual problem: I want to change the cooler water. b ́ tries to remove the lower hose from the cooler (I removed this fuse clamp). Unfortunately, no success, because the closure is extremely rusty. I tried to get the hose (lock also sprayed with rust releaser) out by turning, because the closure looked like it was like a bayonet closure. Is that right? Now my question: Is there another way to release the cooling water, so a drain screw or something? If not, how do you get the S The last possibility I can think of right now is cut open and pop out somehow. Thank you very much.