Hello together! I want to apologize in advance if I open here a topic that has already been dealt with several times. I am new here, but I found nothing suitable in the search function. I drive a Renault Trafic II JL 1,9 liter diesel 73kW Passenger, in which a Eberspächer heater D5WZ is installed. As many people know, there is the possibility to upgrade this to full-fledged heater…at least theoretically. I would like to know if the upgrade kits of these vehicles can also be installed on me. I have now compared the schematics. However, since I am electronically rather undisturbed, I now turn to you. Maybe someone already has experience of “adapting” other upgrade kits. Thank you very much in advance.