Hello, have installed a Webasto auxiliary heater from the workshop. Should be ex factory, but was “forgotten” (eventually because it was not available in the edition at once) and was retrofitted at the dealer “original”. Under 15 minutes at -5 degrees I do not notice much of heat. Should the heater blower be placed on the windscreen before the car? Or does it only warm up the engine cooling circuit? With me the actual blower does not run with 8 which I actually expect In order to get the windows free), only at the engine start, engine temperature then so 70 degrees. Do you need to switch it off by itself at the engine start or can/may it continue to run? It is only programmed via the remote control or is there still an extra level of control in the Info menu? I’m not so sure if this is all so ok. vG Rudi