The VW exhaust scandal has shown that the programming (software update) of the engine control unit to improve the exhaust gas emissions is primarily at the expense of the customer. Numerous customers from the VW Group reported that their cars ran out of round after the software update, used more diesel, the soot particle filter became clogged more often, the EGR valve (exhaust gas recirculation valve) had to be replaced in part every 50.000 km, etc. in most cases, the customer incurred costs on his own. It was regularly pointed out that the software update was finally approved by the Federal Motor Transport Authority (KBA). A similar release has now also been issued for the SUBARU exhaust gas scandal. Here, too, it will only become clear in the course of time whether and, if so, with which problems the customers will be confronted.