Function RDK tyre pressure control defective?? No display despite bursting tires!

Hi, was with the Alhambra for the first inspection. No mistakes, everything ok. Drive home, turn off the car, drive back and hoere and notice after a few km funny noises and bits jerked. Drive still bite further (speed 30 zone) gets worse and worse; turn off the car: mature completely broken; blanket already almost completely off…… rim but as if by a miracle still heals. otherwise also nothing broken. I am of course of the opinion that have in the workshop the mature where whipped up.. but the other topic. Why didn’t the RDK go to zero for a long time despite the loss of air? I talked to 3 people in the workshop: I should drive more than 5 km; sometimes faster; sometimes more pressure. I tried everything: several times filled up air, system resetts; drove and then drained air…. on several mature, short and longer (10 km) distance, sometimes faster, sometimes slower: System never went on!! Car should now again 1-2-3 days in the workshop( which bothers and even possibly on my Costs!!!). The RDK system would also indicate an error or system failure meant the workshop. But shows neither error nor air loss!! Someone a tip how I can test the system again? When and how IT MUST start 200%? Mfg benjamin