TPMS is mandatory unfortunatly no sensor is needed for that. Here is a good german article about that: https://www.adac.de/rund-ums-fahrzeug/ausstattung-techni

TPMS is mandatory unfortunatly no sensor is needed for that. Here is a good german article about that: https://www.adac.de/rund-ums-fahrzeug/ausstattung-technik-zubehoer/reifen/sicherheit/reifendruck-kontrollsystem/ https://www.adac.de/rund-ums-fahrzeug/ausstattung-technik-zu... basically the following vendors only use indirect control systems (no sensor): VW-Group (VW, Audi, Seat, Skoda), PSA (Citroën, Peugeot, DS, Opel), Fiat, Mazda or Honda. the problem with sensors is that a new set of tires have additional cost of 120-300€ which is most often not an issue since the vendors who use direct control systems are mostly premium vendor cars.